Semiconductor Components Industries, LLC, 2000
July, 2000 – Rev. 3 1Publication Order Number:
NCP302/D
NCP302, NCP303
Voltage Detector Series
with Programmable Delay
The NCP302 and NCP303 series are second generation ultra–low
current voltage detectors that contain a programmable time delay
generator. These devices are specifically designed for use as reset
controllers in portable microprocessor based systems where extended
battery life is paramount.
Each series features a highly accurate under voltage detector with
hysteresis and an externally programmable time delay generator. This
combination of features prevents erratic system reset operation.
The NCP302 series consists of complementary output devices that
are available with either an active high or active low reset. The
NCP303 series has an open drain N–channel output with an active low
reset output.
The NCP302 and NCP303 device series are available in the
TSOP–5 package with seven standard under voltage thresholds.
Additional thresholds that range from 0.9 V to 4.9 V in 100 mV steps
can be manufactured.
Features
•Quiescent Current of 0.5 µA Typical
•High Accuracy Under Voltage Threshold of 2.0%
•Externally Programmable Time Delay Generator
•Wide Operating Voltage Range of 0.8 V to 10 V
•Complementary or Open Drain Output
•Active Low or Active High Reset
Typical Applications
•Microprocessor Reset Controller
•Low Battery Detection
•Power Fail Indicator
•Battery Backup Detection
Representative Block Diagrams
This device contains 28 active transistors.
NCP303LSNxxT1
Open Drain Output Configuration
NCP302xSNxxT1
Complementary Output Configuration
Vref
2 Input
1
Reset
Output
3 Gnd 5C
D
RD
Vref
2 Input
3 Gnd 5C
D
RD
1 Reset Output
* Inverter for active low devices.
* Buffer for active high devices.
*
http://onsemi.com
See detailed ordering and shipping information in the ordering
information section on page 2 of this data sheet.
ORDERING INFORMATION
TSOP–5
SN SUFFIX
CASE 483
1
5
PIN CONNECTIONS AND
MARKING DIAGRAM
1
3N.C.
Reset
Output
2
Input
Ground 4
CD
5
xxxYW
(Top View)
xxx = 302 or 303
Y = Year
W = Work Week
NCP302, NCP303
http://onsemi.com
2
ORDERING INFORMATION
Device Threshold
Voltage Output
Type Reset Marking Package
(Qty/Reel)
NCP302LSN09T1 0.9 SBOYW
NCP302LSN18T1 1.8 SBFYW
NCP302LSN20T1 2.0
Active
SBDYW
NCP302LSN27T1 2.7
A
ct
i
ve
Low
SAWYW
NCP302LSN30T1 3.0
L
ow SATYW
NCP302LSN45T1 4.5 SALYW
NCP302LSN47T1 4.7
CMOS
SACYW
NCP302HSN09T1 0.9 CMOS SDOYW
NCP302HSN18T1 1.8 SFHYW
NCP302HSN20T1 2.0
Active
SFGYW 3000 Units
NCP302HSN27T1 2.7
A
ct
i
ve
High
SDKYW
3000
Units
on 7 inch
NCP302HSN30T1 3.0
Hi
g
h
SDIYW
on
7
inch
Reel
NCP302HSN45T1 4.5 SDGYW
NCP302HSN47T1 4.7 SDFYW
NCP303LSN09T1 0.9 SDEYW
NCP303LSN18T1 1.8 SCVYW
NCP303LSN20T1 2.0
O
p
en
Active
SCTYW
NCP303LSN27T1 2.7
O
pen
Drain
A
ct
i
ve
Low
SCMYW
NCP303LSN30T1 3.0 Drain
L
ow SCJYW
NCP303LSN45T1 4.5 SBTYW
NCP303LSN47T1 4.7 SBRYW
NOTE: The ordering information lists seven standard under voltage thresholds with active low outputs.
Additional active low threshold devices, ranging from 0.9 V to 4.9 V in 100 mV increments and
NCP302 active high output devices, ranging from 0.9 V to 4.9 V in 100 V increments can be
manufactured. Contact your ON Semiconductor representative for availability. The electrical
characteristics of these additional devices are shown in Tables 1 and 2.
MAXIMUM RATINGS
Rating Symbol Value Unit
ÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁ
Input Power Supply Voltage (Pin 2)
ÁÁÁÁ
ÁÁÁÁ
Vin
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
12
ÁÁÁ
ÁÁÁ
V
ÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁ
Output Voltage (Pin 1)
Complementary, NCP302
N–Channel Open Drain, NCP303
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
VOUT
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
–0.3 to Vin+0.3
–0.3 to 12
ÁÁÁ
Á
Á
Á
ÁÁÁ
V
ÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁ
Output Current (Pin 1, Note 2)
ÁÁÁÁ
ÁÁÁÁ
IOUT
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
70
ÁÁÁ
ÁÁÁ
mA
ÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁ
Thermal Resistance Junction to Air
ÁÁÁÁ
ÁÁÁÁ
RJA
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
250
ÁÁÁ
ÁÁÁ
°C/W
ÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁ
Operating Junction Temperature Range
ÁÁÁÁ
ÁÁÁÁ
TJ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
–40 to +125
ÁÁÁ
ÁÁÁ
°C
ÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁ
Storage Temperature Range
ÁÁÁÁ
ÁÁÁÁ
Tstg
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
–55 to +150
ÁÁÁ
ÁÁÁ
°C
NOTES:
1. This device series contains ESD protection and exceeds the following tests:
Human Body Model 2000 V per MIL–STD–883, Method 3015.
Machine Model Method 200 V.
2. The maximum package power dissipation limit must not be exceeded.
PD
TJ(max) TA
RJA
NCP302, NCP303
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS (For all values TA = 25°C, unless otherwise noted.)
Characteristic Symbol Min Typ Max Unit
NCP302/3 – 0.9
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Detector Threshold (Pin 2, Vin Decreasing)
ÁÁÁÁÁ
ÁÁÁÁÁ
VDET–
ÁÁÁÁ
ÁÁÁÁ
0.882
ÁÁÁÁ
ÁÁÁÁ
0.900
ÁÁÁÁ
ÁÁÁÁ
0.918
ÁÁÁ
ÁÁÁ
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.027 0.045 0.063 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Supply Current (Pin 2)
(Vin = 0.8 V)
(Vin = 2.9 V)
ÁÁÁÁÁ
Á
ÁÁÁ
Á
ÁÁÁÁÁ
Iin
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
–
–
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
0.20
0.45
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
0.6
1.2
ÁÁÁ
Á
Á
Á
ÁÁÁ
µA
Maximum Operating Voltage (Pin 2) Vin(max) – – 10 V
Minimum Operating Voltage (Pin 2)
(TA= –40°C to 85°C) Vin(min) –
–0.55
0.65 0.70
0.80 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices)
ÁÁÁÁÁ
ÁÁÁÁÁ
IOUT
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
ÁÁÁ
mA
Nch Sink Current, NCP302, NCP303
(VOUT = 0.05V, Vin = 0.70V)
(VOUT = 0.50V, Vin = 0.85V) 0.01
0.05 0.05
0.50 –
–
Pch Source Current, NCP302
(VOUT = 2.4V, Vin = 4.5V) 1.0 2.0 –
Delay Capacitor Pin Threshold Voltage (Pin 5) VTCD 0.50 0.67 0.84 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Delay Capacitor Pin Sink Current (Pin 5)
(Vin = 0.7 V, VCD = 0.1V)
(Vin = 1.5 V, VCD = 0.5V)
ÁÁÁÁÁ
Á
ÁÁÁ
Á
ÁÁÁÁÁ
ICD
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
2.0
10
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
120
300
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
–
–
ÁÁÁ
Á
Á
Á
ÁÁÁ
µA
Delay Pullup Resistance (Pin 5) RD0.5 1.0 2.0 M
ELECTRICAL CHARACTERISTICS (For all values TA = 25°C, unless otherwise noted.)
Characteristic Symbol Min Typ Max Unit
NCP302/3 – 1.8
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Detector Threshold (Pin 2, Vin Decreasing)
ÁÁÁÁÁ
ÁÁÁÁÁ
VDET–
ÁÁÁÁ
ÁÁÁÁ
1.764
ÁÁÁÁ
ÁÁÁÁ
1.80
ÁÁÁÁ
ÁÁÁÁ
1.836
ÁÁÁ
ÁÁÁ
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.054 0.090 0.126 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Supply Current (Pin 2)
(Vin = 1.7 V)
(Vin = 3.8 V)
ÁÁÁÁÁ
Á
ÁÁÁ
Á
ÁÁÁÁÁ
Iin
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
–
–
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
0.23
0.48
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
0.7
1.3
ÁÁÁ
Á
Á
Á
ÁÁÁ
µA
Maximum Operating Voltage (Pin 2) Vin(max) – – 10 V
Minimum Operating Voltage (Pin 2)
(TA= –40°C to 85°C) Vin(min) –
–0.55
0.65 0.70
0.80 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices)
ÁÁÁÁÁ
ÁÁÁÁÁ
IOUT
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
ÁÁÁ
mA
Nch Sink Current, NCP302, NCP303
(VOUT = 0.05V, Vin = 0.70V)
(VOUT = 0.50V, Vin = 1.5V) 0.01
1.0 0.05
2.0 –
–
Pch Source Current, NCP302
(VOUT = 2.4V, Vin = 4.5V) 1.0 2.0 –
Delay Capacitor Pin Threshold Voltage (Pin 5) VTCD 0.99 1.34 1.68 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Delay Capacitor Pin Sink Current (Pin 5)
(Vin = 0.7 V, VCD = 0.1V)
(Vin = 1.5 V, VCD = 0.5V)
ÁÁÁÁÁ
Á
ÁÁÁ
Á
ÁÁÁÁÁ
ICD
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
2.0
200
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
120
1600
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
–
–
ÁÁÁ
Á
Á
Á
ÁÁÁ
µA
Delay Pullup Resistance (Pin 5) RD0.5 1.0 2.0 M
NCP302, NCP303
http://onsemi.com
4
ELECTRICAL CHARACTERISTICS (For all values TA = 25°C, unless otherwise noted.)
Characteristic Symbol Min Typ Max Unit
NCP302/3 – 2.0
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Detector Threshold (Pin 2, Vin Decreasing)
ÁÁÁÁÁ
ÁÁÁÁÁ
VDET–
ÁÁÁÁ
ÁÁÁÁ
1.960
ÁÁÁÁ
ÁÁÁÁ
2.00
ÁÁÁÁ
ÁÁÁÁ
2.040
ÁÁÁ
ÁÁÁ
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.06 0.10 0.14 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Supply Current (Pin 2)
(Vin = 1.9 V)
(Vin = 4.0 V)
ÁÁÁÁÁ
Á
ÁÁÁ
Á
ÁÁÁÁÁ
Iin
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
–
–
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
0.23
0.48
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
0.8
1.3
ÁÁÁ
Á
Á
Á
ÁÁÁ
µA
Maximum Operating Voltage (Pin 2) Vin(max) – – 10 V
Minimum Operating Voltage (Pin 2)
(TA= –40°C to 85°C) Vin(min) –
–0.55
0.65 0.70
0.80 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices)
ÁÁÁÁÁ
ÁÁÁÁÁ
IOUT
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
ÁÁÁ
mA
Nch Sink Current, NCP302, NCP303
(VOUT = 0.05V, Vin = 0.70V)
(VOUT = 0.50V, Vin = 1.5V) 0.01
1.0 0.05
2.0 –
–
Pch Source Current, NCP302
(VOUT = 2.4V, Vin = 4.5V) 1.0 2.0 –
Delay Capacitor Pin Threshold Voltage (Pin 5) VTCD 1.10 1.49 1.87 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Delay Capacitor Pin Sink Current (Pin 5)
(Vin = 0.7 V, VCD = 0.1V)
(Vin = 1.5 V, VCD = 0.5V)
ÁÁÁÁÁ
Á
ÁÁÁ
Á
ÁÁÁÁÁ
ICD
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
2.0
200
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
120
1600
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
–
–
ÁÁÁ
Á
Á
Á
ÁÁÁ
µA
Delay Pullup Resistance (Pin 5) RD0.5 1.0 2.0 M
ELECTRICAL CHARACTERISTICS (For all values TA = 25°C, unless otherwise noted.)
Characteristic Symbol Min Typ Max Unit
NCP302/3– 2.7
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Detector Threshold (Pin 2, Vin Decreasing)
ÁÁÁÁÁ
ÁÁÁÁÁ
VDET–
ÁÁÁÁ
ÁÁÁÁ
2.646
ÁÁÁÁ
ÁÁÁÁ
2.700
ÁÁÁÁ
ÁÁÁÁ
2.754
ÁÁÁ
ÁÁÁ
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.081 0.135 0.189 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Supply Current (Pin 2)
(Vin = 2.6 V)
(Vin = 4.7 V)
ÁÁÁÁÁ
Á
ÁÁÁ
Á
ÁÁÁÁÁ
Iin
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
–
–
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
0.26
0.46
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
0.8
1.3
ÁÁÁ
Á
Á
Á
ÁÁÁ
µA
Maximum Operating Voltage (Pin 2) Vin(max) – – 10 V
Minimum Operating Voltage (Pin 2)
(TA= –40°C to 85°C) Vin(min) –
–0.55
0.65 0.70
0.80 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices)
ÁÁÁÁÁ
ÁÁÁÁÁ
IOUT
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
ÁÁÁ
mA
Nch Sink Current, NCP302, NCP303
(VOUT = 0.05V, Vin = 0.70V)
(VOUT = 0.50V, Vin = 1.5V) 0.01
1.0 0.05
2.0 –
–
Pch Source Current, NCP302
(VOUT = 2.4V, Vin = 4.5V) 1.0 2.0 –
Delay Capacitor Pin Threshold Voltage (Pin 5) VTCD 1.49 2.01 2.53 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Delay Capacitor Pin Sink Current (Pin 5)
(Vin = 0.7 V, VCD = 0.1V)
(Vin = 1.5 V, VCD = 0.5V)
ÁÁÁÁÁ
Á
ÁÁÁ
Á
ÁÁÁÁÁ
ICD
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
2.0
200
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
120
1600
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
–
–
ÁÁÁ
Á
Á
Á
ÁÁÁ
µA
Delay Pullup Resistance (Pin 5) RD0.5 1.0 2.0 M
NCP302, NCP303
http://onsemi.com
5
ELECTRICAL CHARACTERISTICS (For all values TA = 25°C, unless otherwise noted.)
Characteristic Symbol Min Typ Max Unit
NCP302/3 – 3.0
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Detector Threshold (Pin 2, Vin Decreasing)
ÁÁÁÁÁ
ÁÁÁÁÁ
VDET–
ÁÁÁÁ
ÁÁÁÁ
2.94
ÁÁÁÁ
ÁÁÁÁ
3.00
ÁÁÁÁ
ÁÁÁÁ
3.06
ÁÁÁ
ÁÁÁ
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.09 0.15 0.21 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Supply Current (Pin 2)
(Vin = 2.87 V)
(Vin = 5.0 V)
ÁÁÁÁÁ
Á
ÁÁÁ
Á
ÁÁÁÁÁ
Iin
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
–
–
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
0.27
0.47
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
0.9
1.3
ÁÁÁ
Á
Á
Á
ÁÁÁ
µA
Maximum Operating Voltage (Pin 2) Vin(max) – – 10 V
Minimum Operating Voltage (Pin 2)
(TA= –40°C to 85°C) Vin(min) –
–0.55
0.65 0.70
0.80 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices)
ÁÁÁÁÁ
ÁÁÁÁÁ
IOUT
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
ÁÁÁ
mA
Nch Sink Current, NCP302, NCP303
(VOUT = 0.05V, Vin = 0.70V)
(VOUT = 0.50V, Vin = 1.5V) 0.01
1.0 0.05
2.0 –
–
Pch Source Current, NCP302
(VOUT = 2.4V, Vin = 4.5V) 1.0 2.0 –
Delay Capacitor Pin Threshold Voltage (Pin 5) VTCD 1.65 2.23 2.81 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Delay Capacitor Pin Sink Current (Pin 5)
(Vin = 0.7 V, VCD = 0.1V)
(Vin = 1.5 V, VCD = 0.5V)
ÁÁÁÁÁ
Á
ÁÁÁ
Á
ÁÁÁÁÁ
ICD
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
2.0
200
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
120
1600
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
–
–
ÁÁÁ
Á
Á
Á
ÁÁÁ
µA
Delay Pullup Resistance (Pin 5) RD0.5 1.0 2.0 M
ELECTRICAL CHARACTERISTICS (For all values TA = 25°C, unless otherwise noted.)
Characteristic Symbol Min Typ Max Unit
NCP302/3 – 4.5
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Detector Threshold (Pin 2, Vin Decreasing)
ÁÁÁÁÁ
ÁÁÁÁÁ
VDET–
ÁÁÁÁ
ÁÁÁÁ
4.410
ÁÁÁÁ
ÁÁÁÁ
4.500
ÁÁÁÁ
ÁÁÁÁ
4.590
ÁÁÁ
ÁÁÁ
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.135 0.225 0.315 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Supply Current (Pin 2)
(Vin = 4.34 V)
(Vin = 6.5 V)
ÁÁÁÁÁ
Á
ÁÁÁ
Á
ÁÁÁÁÁ
Iin
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
–
–
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
0.33
0.52
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
1.0
1.4
ÁÁÁ
Á
Á
Á
ÁÁÁ
µA
Maximum Operating Voltage (Pin 2) Vin(max) – – 10 V
Minimum Operating Voltage (Pin 2)
(TA= –40°C to 85°C) Vin(min) –
–0.55
0.65 0.70
0.80 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices)
ÁÁÁÁÁ
ÁÁÁÁÁ
IOUT
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
ÁÁÁ
mA
Nch Sink Current, NCP302, NCP303
(VOUT = 0.05V, Vin = 0.70V)
(VOUT = 0.50V, Vin = 1.5V) 0.01
1.0 0.05
2.0 –
–
Pch Source Current, NCP302
(VOUT = 5.9V, Vin = 8.0V) 1.5 3.0 –
Delay Capacitor Pin Threshold Voltage (Pin 5) VTCD 2.25 3.04 3.83 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Delay Capacitor Pin Sink Current (Pin 5)
(Vin = 0.7 V, VCD = 0.1V)
(Vin = 1.5 V, VCD = 0.5V)
ÁÁÁÁÁ
Á
ÁÁÁ
Á
ÁÁÁÁÁ
ICD
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
2.0
200
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
120
1600
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
–
–
ÁÁÁ
Á
Á
Á
ÁÁÁ
µA
Delay Pullup Resistance (Pin 5) RD0.5 1.0 2.0 M
NCP302, NCP303
http://onsemi.com
6
ELECTRICAL CHARACTERISTICS (For all values TA = 25°C, unless otherwise noted.)
Characteristic Symbol Min Typ Max Unit
NCP302/3 – 4.7
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Detector Threshold (Pin 2, Vin Decreasing)
ÁÁÁÁÁ
ÁÁÁÁÁ
VDET–
ÁÁÁÁ
ÁÁÁÁ
4.606
ÁÁÁÁ
ÁÁÁÁ
4.70
ÁÁÁÁ
ÁÁÁÁ
4.794
ÁÁÁ
ÁÁÁ
V
Detector Threshold Hysteresis (Pin 2, Vin Increasing) VHYS 0.141 0.235 0.329 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Supply Current (Pin 2)
(Vin = 4.54 V)
(Vin = 6.7 V)
ÁÁÁÁÁ
Á
ÁÁÁ
Á
ÁÁÁÁÁ
Iin
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
–
–
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
0.34
0.53
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
1.0
1.4
ÁÁÁ
Á
Á
Á
ÁÁÁ
µA
Maximum Operating Voltage (Pin 2) Vin(max) – – 10 V
Minimum Operating Voltage (Pin 2)
(TA= –40°C to 85°C) Vin(min) –
–0.55
0.65 0.70
0.80 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Reset Output Current (Pin 1, Active Low ‘L’ Suffix Devices)
ÁÁÁÁÁ
ÁÁÁÁÁ
IOUT
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁ
ÁÁÁ
mA
Nch Sink Current, NCP302, NCP303
(VOUT = 0.05V, Vin = 0.70V)
(VOUT = 0.50V, Vin = 1.5V) 0.01
1.0 0.05
2.0 –
–
Pch Source Current, NCP302
(VOUT = 5.9V, Vin = 8.0V) 1.5 3.0 –
Delay Capacitor Pin Threshold Voltage (Pin 5) VTCD 2.59 3.49 4.40 V
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Delay Capacitor Pin Sink Current (Pin 5)
(Vin = 0.7 V, VCD = 0.1V)
(Vin = 1.5 V, VCD = 0.5V)
ÁÁÁÁÁ
Á
ÁÁÁ
Á
ÁÁÁÁÁ
ICD
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
2.0
200
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
120
1600
ÁÁÁÁ
Á
ÁÁ
Á
ÁÁÁÁ
–
–
ÁÁÁ
Á
Á
Á
ÁÁÁ
µA
Delay Pullup Resistance (Pin 5) RD0.5 1.0 2.0 M
0.7V
GND
5.0V
2.5V
GND
VDET+ + 2.0V
NCP303LNCP302L
tD2
Input Voltage, Pin 2
0.7V
GND
GND
VDET+ + 2.0V
tD2
VDET+ + 2.0V
VDET+ + 2.0V
2
Reset Output
Voltage, Pin 1
NCP302 and NCP303 series are measured with 10 pF capacitive load. NCP303 has an additional 470 k pullup resistor connected from the reset output to +5.0 V.
Reset output voltage waveforms are shown for the active low `L' devices. For active high `H' devices, the reset output voltage waveforms are inverted. Output
time delay tD1 and tD2 are dependent upon the delay capacitance. Refer to Figures 11, 12, and 13. The upper detector threshold, VDET+ is the sum of the lower
detector threshold, VDET- plus the input hysteresis, VHYS.
Figure 1. Measurement Conditions for tD1 and tD2
tD1 tD1
NCP302, NCP303
http://onsemi.com
7
Table 1. ELECTRICAL CHARACTERISTIC TABLE FOR 0.9 – 4.9 V
Detector Threshold
Supply Current Nch Sink Current Pch
So rce
NCP302 Series Detector Threshold
D
etector
Th
res
h
o
ld
Hysteresis Vin Low Vin High Vin Low Vin High Source
Current
VDET– (V) VHYS (V) Iin
(A) (1) Iin
(A) (2) IOUT
(mA) (3) IOUT
(mA) (4) IOUT
(mA) (5)
Part Number Min Typ Max Min Typ Max Typ Typ Typ Typ Typ
NCP302(L/H)SN09T1 0.882 0.9 0.918 0.027 0.045 0.063 0.3 0.5 0.05 0.5 2.0
NCP302(L/H)SN10T1 0.980 1.0 1.020 0.030 0.050 0.070
NCP302(L/H)SN11T1 1.078 1.1 1.122 0.033 0.055 0.077 1.0
NCP302(L/H)SN12T1 1.176 1.2 1.224 0.036 0.060 0.084
NCP302(L/H)SN13T1 1.274 1.3 1.326 0.039 0.065 0.091
NCP302(L/H)SN14T1 1.372 1.4 1.428 0.042 0.070 0.098
NCP302(L/H)SN15T1 1.470 1.5 1.530 0.045 0.075 0.105
NCP302(L/H)SN16T1 1.568 1.6 1.632 0.048 0.080 0.112 2.0
NCP302(L/H)SN17T1 1.666 1.7 1.734 0.051 0.085 0.119
NCP302(L/H)SN18T1 1.764 1.8 1.836 0.054 0.090 0.126
NCP302(L/H)SN19T1 1.862 1.9 1.938 0.057 0.095 0.133
NCP302(L/H)SN20T1 1.960 2.0 2.040 0.060 0.100 0.140
NCP302(L/H)SN21T1 2.058 2.1 2.142 0.063 0.105 0.147
NCP302(L/H)SN22T1 2.156 2.2 2.244 0.066 0.110 0.154
NCP302(L/H)SN23T1 2.254 2.3 2.346 0.069 0.115 0.161
NCP302(L/H)SN24T1 2.352 2.4 2.448 0.072 0.120 0.168
NCP302(L/H)SN25T1 2.450 2.5 2.550 0.075 0.125 0.175
NCP302(L/H)SN26T1 2.548 2.6 2.652 0.078 0.130 0.182
NCP302(L/H)SN27T1 2.646 2.7 2.754 0.081 0.135 0.189
NCP302(L/H)SN28T1 2.744 2.8 2.856 0.084 0.140 0.196
NCP302(L/H)SN29T1 2.842 2.9 2.958 0.087 0.145 0.203
NCP302(L/H)SN30T1 2.940 3.0 3.060 0.090 0.150 0.210
NCP302(L/H)SN31T1 3.038 3.1 3.162 0.093 0.155 0.217
NCP302(L/H)SN32T1 3.136 3.2 3.264 0.096 0.160 0.224
NCP302(L/H)SN33T1 3.234 3.3 3.366 0.099 0.165 0.231
NCP302(L/H)SN34T1 3.332 3.4 3.468 0.102 0.170 0.238
NCP302(L/H)SN35T1 3.430 3.5 3.570 0.105 0.175 0.245
NCP302(L/H)SN36T1 3.528 3.6 3.672 0.108 0.180 0.252
NCP302(L/H)SN37T1 3.626 3.7 3.774 0.111 0.185 0.259
NCP302(L/H)SN38T1 3.724 3.8 3.876 0.114 0.190 0.266
NCP302(L/H)SN39T1 3.822 3.9 3.978 0.117 0.195 0.273
NCP302(L/H)SN40T1 3.920 4.0 4.080 0.120 0.200 0.280 0.4 0.6 3.0
NCP302(L/H)SN41T1 4.018 4.1 4.182 0.123 0.205 0.287
NCP302(L/H)SN42T1 4.116 4.2 4.284 0.126 0.210 0.294
NCP302(L/H)SN43T1 4.214 4.3 4.386 0.129 0.215 0.301
NCP302(L/H)SN44T1 4.312 4.4 4.488 0.132 0.220 0.308
NCP302(L/H)SN45T1 4.410 4.5 4.590 0.135 0.225 0.315
NCP302(L/H)SN46T1 4.508 4.6 4.692 0.138 0.230 0.322
NCP302(L/H)SN47T1 4.606 4.7 4.794 0.141 0.235 0.329
NCP302(L/H)SN48T1 4.704 4.8 4.896 0.144 0.240 0.336
NCP302(L/H)SN49T1 4.802 4.9 4.998 0.147 0.245 0.343
(1) Condition 1: 0.9 — 2.9 V, Vin = VDET– – 0.10 V; 3.0 — 3.9 V, Vin = VDET– – 0.13 V; 4.0 — 4.9 V, Vin = VDET– – 0.16 V
(2) Condition 2: 0.9 — 4.9 V, Vin = VDET– + 2.0 V
(3) Condition 3: 0.9 — 4.9 V, Vin = 0.7 V, VOUT = 0.05 V, Active Low ‘L’ Suffix Devices
(4) Condition 4: 0.9 — 1.0 V, Vin = 0.85 V, VOUT = 0.5 V; 1.1 — 1.5 V, Vin = 1.0 V, VOUT = 0.5 V; 1.6 — 4.9 V, Vin = 1.5 V, VOUT = 0.5 V,
Condition 4: Active Low ‘L’ Suffix Devices
(5) Condition 5: 0.9 — 3.9 V, Vin = 4.5 V, VOUT = 2.4 V; 4.0 — 4.9 V, Vin = 8.0 V, VOUT = 5.9 V
NCP302, NCP303
http://onsemi.com
8
Table 2. ELECTRICAL CHARACTERISTIC TABLE FOR 0.9 – 4.9 V
Detector Threshold
Supply Current Nch Sink Current
NCP303 Series Detector Threshold
Detector
Threshold
Hysteresis Vin Low Vin High Vin Low Vin High
VDET– (V) VHYS (V) Iin
(A) (1) Iin
(A) (2) IOUT
(mA) (3) IOUT
(mA) (4)
Part Number Min Typ Max Min Typ Max Typ Typ Typ Typ
NCP303LSN09T1 0.882 0.9 0.918 0.027 0.045 0.063 0.3 0.5 0.05 0.5
NCP303LSN10T1 0.980 1.0 1.020 0.030 0.050 0.070
NCP303LSN11T1 1.078 1.1 1.122 0.033 0.055 0.077 1.0
NCP303LSN12T1 1.176 1.2 1.224 0.036 0.060 0.084
NCP303LSN13T1 1.274 1.3 1.326 0.039 0.065 0.091
NCP303LSN14T1 1.372 1.4 1.428 0.042 0.070 0.098
NCP303LSN15T1 1.470 1.5 1.530 0.045 0.075 0.105
NCP303LSN16T1 1.568 1.6 1.632 0.048 0.080 0.112 2.0
NCP303LSN17T1 1.666 1.7 1.734 0.051 0.085 0.119
NCP303LSN18T1 1.764 1.8 1.836 0.054 0.090 0.126
NCP303LSN19T1 1.862 1.9 1.938 0.057 0.095 0.133
NCP303LSN20T1 1.960 2.0 2.040 0.060 0.100 0.140
NCP303LSN21T1 2.058 2.1 2.142 0.063 0.105 0.147
NCP303LSN22T1 2.156 2.2 2.244 0.066 0.110 0.154
NCP303LSN23T1 2.254 2.3 2.346 0.069 0.115 0.161
NCP303LSN24T1 2.352 2.4 2.448 0.072 0.120 0.168
NCP303LSN25T1 2.450 2.5 2.550 0.075 0.125 0.175
NCP303LSN26T1 2.548 2.6 2.652 0.078 0.130 0.182
NCP303LSN27T1 2.646 2.7 2.754 0.081 0.135 0.189
NCP303LSN28T1 2.744 2.8 2.856 0.084 0.140 0.196
NCP303LSN29T1 2.842 2.9 2.958 0.087 0.145 0.203
NCP303LSN30T1 2.940 3.0 3.060 0.090 0.150 0.210
NCP303LSN31T1 3.038 3.1 3.162 0.093 0.155 0.217
NCP303LSN32T1 3.136 3.2 3.264 0.096 0.160 0.224
NCP303LSN33T1 3.234 3.3 3.366 0.099 0.165 0.231
NCP303LSN34T1 3.332 3.4 3.468 0.102 0.170 0.238
NCP303LSN35T1 3.430 3.5 3.570 0.105 0.175 0.245
NCP303LSN36T1 3.528 3.6 3.672 0.108 0.180 0.252
NCP303LSN37T1 3.626 3.7 3.774 0.111 0.185 0.259
NCP303LSN38T1 3.724 3.8 3.876 0.114 0.190 0.266
NCP303LSN39T1 3.822 3.9 3.978 0.117 0.195 0.273
NCP303LSN40T1 3.920 4.0 4.080 0.120 0.200 0.280 0.4 0.6
NCP303LSN41T1 4.018 4.1 4.182 0.123 0.205 0.287
NCP303LSN42T1 4.116 4.2 4.284 0.126 0.210 0.294
NCP303LSN43T1 4.214 4.3 4.386 0.129 0.215 0.301
NCP303LSN44T1 4.312 4.4 4.488 0.132 0.220 0.308
NCP303LSN45T1 4.410 4.5 4.590 0.135 0.225 0.315
NCP303LSN46T1 4.508 4.6 4.692 0.138 0.230 0.322
NCP303LSN47T1 4.606 4.7 4.794 0.141 0.235 0.329
NCP303LSN48T1 4.704 4.8 4.896 0.144 0.240 0.336
NCP303LSN49T1 4.802 4.9 4.998 0.147 0.245 0.343
(1) Condition 1: 0.9 — 2.9 V, Vin = VDET– – 0.10 V; 3.0 — 3.9 V, Vin = VDET– – 0.13 V; 4.0 — 4.9 V, Vin = VDET– – 0.16 V
(2) Condition 2: 0.9 — 4.9 V, Vin = VDET– + 2.0 V
(3) Condition 3: 0.9 — 4.9 V, Vin = 0.7 V, VOUT = 0.05 V, Active Low ‘L’ Suffix Devices
(4) Condition 4: 0.9 — 1.0 V, Vin = 0.85 V, VOUT = 0.5 V; 1.1 — 1.5 V, Vin = 1.0 V, VOUT = 0.5 V; 1.6 — 4.9 V, Vin = 1.5 V, VOUT = 0.5 V,
Condition 4: Active Low ‘L’ Suffix Devices
NCP302, NCP303
http://onsemi.com
9
-50
4.9
TA, AMBIENT TEMPERATURE (°C)
4.8
4.7
4.6
4.4
-25 025 50 75 100
4.5
4.3
3.00
-50
0.98
TA, AMBIENT TEMPERATURE (°C)
2.90
0.96
2.80
0.94
2.70
0.92
2.60
0.88
-25 025 50 75 100
0.90
0.86 -50 -25 025 50 75 100
TA, AMBIENT TEMPERATURE (°C)
2.65
2.75
2.85
2.95
VDET+
VDET, DETECTOR THRESHOLD VOLTAGE (V)
VDET+
VTCD , C
-50
0.9
0.8
0.7
0.6
0.4
-25 025 50 75 100
0.5
0.3
TA, AMBIENT TEMPERATURE (°C)
-50
2.3
2.2
2.1
1.9
-25 025 50 75 100
2.0
1.8
TA, AMBIENT TEMPERATURE (°C)
-50
3.8
3.7
3.6
3.5
3.3
-25 025 50 75 100
3.4
3.2
TA, AMBIENT TEMPERATURE (°C)
Figure 2. NCP302/3 Series 0.9 V
Detector Threshold Voltage versus Temperature Figure 3. NCP302/3 Series 2.7 V
Detector Threshold Voltage versus Temperature
Figure 4. NCP302/3 Series 4.5 V
Detector Threshold Voltage versus Temperature Figure 5. NCP302/3 Series 0.9 V
CD Pin Threshold Voltage versus Temperature
Figure 6. NCP302/3 Series 2.7 V
CD Pin Threshold Voltage versus Temperature Figure 7. NCP302/3 Series 4.5 V
CD Pin Threshold Voltage versus Temperature
VDET+
VDET-
VDET-
VDET-
VDET, DETECTOR THRESHOLD VOLTAGE (V)
VDET, DETECTOR THRESHOLD VOLTAGE (V)
PIN THRESHOLD VOLTAGE (V)
D
VTCD , C PIN THRESHOLD VOLTAGE (V)
D
VTCD , C PIN THRESHOLD VOLTAGE (V)
D
NCP302, NCP303
http://onsemi.com
10
, t D2, OUTPUT TIME DELAY
0
18
14
10
6.0
2.0
0.5 1.0 1.5 2.0 2.5 3.0
4.0
0
8.0
0
ICD , SINK CURRENRT (mA)
VCD, VOLTAGE (V)
6.0
4.0
2.0
0
0.2 0.4 0.6 0.8 1.0
1.0
3.0
5.0
7.0
00.5 1.0 1.5 2.0 2.5
VCD, VOLTAGE (V)
3.5 4.0
16
8.0
12
VCD, CD PIN VOLTAGE (V)
10000
1000
100
10
0.1
1.0
0.0001 0.001 0.01 0.1 1.0
CD, DELAY CAPACITANCE (µF)
Vin = 4.0V
Vin = 0.85V
Vin = 0.7V
Vin = 2.5V
Vin = 2.0V
Vin = 1.5V
Vin = 3.5V
Vin = 3.0V
Vin = 2.5V
10000
1000
100
10
0.1
1.0
0.0001 0.001 0.01 0.1 1.0
CD, DELAY CAPACITANCE (µF)
0.0001 0.001 0.01 0.1 1.0
10000
1000
100
10
0.1
1.0
CD, DELAY CAPACITANCE (µF)
Figure 8. NCP302/3 Series 0.9 V
CD Pin Sink Current versus CD Pin Voltage
0.6
0.3
0.2
0
0.1
0.4
0.5
Figure 9. NCP302/3 Series 2.7 V
CD Pin Sink Current versus CD Pin Voltage
Figure 10. NCP302/3 Series 4.5 V
CD Pin Sink Current versus CD Pin Voltage Figure 11. NCP302/3 Series 0.9 V
Output Time Delay versus Delay Capacitance
Figure 12. NCP302/3 Series 2.7 V
Output Time Delay versus Delay Capacitance Figure 13. NCP302/3 Series 4.5 V
Output Time Delay versus Delay Capacitance
ICD , SINK CURRENRT (mA)
ICD , SINK PIN CURRENT (mA)
TA = 25°CTA = 25°C
TA = 25°CTA = 25°C
tD1
tD2 (ms)
tD1 (s)
TA = 25°C
tD2 (ms)
tD1 (s)
, t D2, OUTPUT TIME DELAYtD1
, t D2, OUTPUT TIME DELAYtD1
TA = 25°C
tD2 (ms)
tD1 (s)
NCP302, NCP303
http://onsemi.com
11
Vin, INPUT VOLTAGE (V)
VOUT, OUTPUT VOLTAGE (V)
00.2 0.4 0.6 0.8
1.0
0.8
0.6
0.4
0.2
0
1.0 01.0 1.5 2.0 2.5
3.0
2.0
1.5
1.0
0.5
0
3.0
Vin, INPUT VOLTAGE (V)
0.5
2.5
TA = -30°C
TA = 25°C
TA = 85°CTA = -30°C
TA = 25°C
TA = 85°C
01.0 2.0 3.0 4.0
5.0
4.0
3.0
2.0
1.0
0
5.0
6.0
7.0
6.0
Vin, INPUT VOLTAGE (V)
Figure 14. NCP302L/3L Series 0.9 V
Output Voltage versus Input Voltage Figure 15. NCP302L/3L Series 2.7 V
Output Voltage versus Input Voltage
Figure 16. NCP302L/3L Series 4.5 V
Output Voltage versus Input Voltage
TA = -30°C
TA = 25°C
TA = 85°C
16
0
IOUT, OUTPUT SINK CURRENT (mA)
VOUT, OUTPUT VOLTAGE (V)
12
8.0
4.0
0
0.2 0.4 0.6 0.8 1.0
2.0
6.0
10
14
00.5 1.0 1.5 2.0 2.5
VOUT, OUTPUT VOLTAGE (V)
1.2
0.6
0.4
0
0.2
0.8
1.0
0
35
25
15
5.0
0.5 1.0 1.5 2.0 2.5 3.0
10
0
3.5 4.0
20
30
VOUT, OUTPUT VOLTAGE (V)
Figure 17. NCP302L/3L Series 0.9 V
Reset Output Sink Current versus Output Voltage
Figure 18. NCP302L/3L Series 2.7 V
Reset Output Sink Current versus Output Voltage Figure 19. NCP302L/3L Series 4.5 V
Reset Output Sink Current versus Output Voltage
Vin = 4.0V
Vin = 3.5V
Vin = 3.0V
Vin = 2.5V
VOUT, OUTPUT VOLTAGE (V)
VOUT, OUTPUT VOLTAGE (V)
IOUT, OUTPUT SINK CURRENT (mA)
IOUT, OUTPUT SINK CURRENT (mA)
Vin = 0.85V
Vin = 0.7V
Vin = 2.0V
Vin = 1.5V
Vin = 2.5V
Vin = 2.0V
TA = 25°C
TA = 25°CTA = 25°C
Vin = 1.5V
NCP302, NCP303
http://onsemi.com
12
TA = 25°C
TA = 25°C
TA = 25°C
Vin, INPUT VOLTAGE (V)
Iin , INPUT CURRENT ( A)
02.0 4.0 6.0 8.0
2.5
2.0
1.5
1.0
0.5
0
10 02.0 6.0 8.0 10
2.0
1.5
1.0
0.5
0
Vin, INPUT VOLTAGE (V)
4.0
2.5
Figure 20. NCP302/3 Series 0.9 V
Input Current versus Input Voltage Figure 21. NCP302/3 Series 2.7 V
Input Current versus Input Voltage
Figure 22. NCP302/3 Series 4.5 V
Input Current versus Input Voltage Figure 23. NCP302/3 Series 0.9 V
Time Delay versus Temperature
Figure 24. NCP302/3 Series 2.7 V
Time Delay versus Temperature Figure 25. NCP302/3 Series 4.5 V
Time Delay versus Temperature
µ
Iin , INPUT CURRENT ( A)
µ
02.0 6.0 8.0
2.0
1.5
1.0
0.5
0
Vin, INPUT VOLTAGE (V)
4.0
2.5
Iin , INPUT CURRENT ( A)
µ
10 -50
TA, AMBIENT TEMPERATURE (°C)
300
250
200
200
100
150
0
50
-25 025 50 75 100
100
0
-50 -25 025 50 75 100
TA, AMBIENT TEMPERATURE (°C)
50
150
250
350
tD2, OUTPUT TIME DELAY (ms)
-50
TA, AMBIENT TEMPERATURE (°C)
250
200
150
50
-25 025 50 75 100
100
0
tD2, OUTPUT TIME DELAY (ms)
tD2, OUTPUT TIME DELAY (ms)
CD = 0.1 F
CD = 0.1 F
CD = 0.1 F
6.0
18
NCP302, NCP303
http://onsemi.com
13
Vin, INPUT VOLTAGE (V) Vin, INPUT VOLTAGE (V)
Vin, INPUT VOLTAGE (V)
Figure 26. NCP302L/3L Series 0.9 V
Reset Output Sink Current versus Input Voltage Figure 27. NCP302L/3L Series 2.7 V
Reset Output Sink Current versus Input Voltage
Figure 28. NCP302L/3L Series 4.5 V
Reset Output Sink Current versus Input Voltage
0
Vin, INPUT VOLTAGE (V)
1.2
0.8
0.4
0
1.0 2.0 3.0 4.0 5.0
0.2
0.6
1.0
1
.
4
00.2 0.4 0.6 0.8 1.0
Vin, INPUT VOLTAGE (V)
12
6.0
4.0
0
2.0
8.0
10
0
7.0
5.0
3.0
1.0
0.5 1.0 1.5 2.0 2.5 3.0
2.0
0
4.0
6.0
Vin, INPUT VOLTAGE (V)
Figure 29. NCP302/3 Series 0.9 V
CD Pin Sink Current versus Input Voltage
Figure 30. NCP302/3 Series 2.7 V
CD Pin Sink Current versus Input Voltage Figure 31. NCP302/3 Series 4.5 V
CD Pin Sink Current versus Input Voltage
TA = 25°C
TA = 85°C
TA = 25°C
0.6
0.4
0.2
0
0.1
0.3
0.5
0.7
00.2 0.4 0.6 0.8 1.0
ICD , SINK CURRENT (mA)
TA = -30°C
TA = 25°C
TA = 85°C
0
5.0
3.0
1.0
0.5 1.0 1.5 2.0 2.5 3.0
2.0
0
4.0
TA = 85°C
TA = -30°C
TA = 25°C
01.0 2.0 3.0 4.0 5.0
6.0
3.0
2.0
0
1.0
4.0
5.0
TA = 85°C
TA = -30°C
TA = 25°C
TA = 85°C
TA = 25°C
TA = -30°C
TA = -30°C
TA = -30°C
TA = 85°C
IOUT, OUTPUT SINK CURRENT (mA)
IOUT , OUTPUT SINK CURRENT (mA)
ICD , SINK CURRENT (mA)
ICD , SINK CURRENT (mA) IOUT , OUTPUT SINK CURRENT (mA)
NCP302, NCP303
http://onsemi.com
14
Figure 32. NCP302L Series 0.9 V
Reset Output Source Current versus Input Voltage
10
8.0
2.0
0
02.0 4.0 6.0 8.0 10
Vin, INPUT VOLTAGE (V)
4.0
6.0
IOUT, OUTPUT SOURCE CURRENT (mA)
12
Figure 33. NCP302L Series 2.7 V
Reset Output Source Current versus Input Voltage
10
8.0
0
02.0 4.0 6.0 8.0 10
Vin, INPUT VOLTAGE (V)
2.0
4.0
6.0
12
Figure 34. NCP302L Series 4.5 V
Reset Output Source Current versus Input Voltage Figure 35. NCP302/3 Series
Delay Resistance versus Temperature
1.6
1.2
0.8
0.4
0
-50 -25 025 50 75 100
TA, AMBIENT TEMPERATURE (°C)
0.2
0.6
1.0
1.4
RD, DELAY RESISTANCE (M )
1.8
VOUT = Vin -2.1 V
Vin -1.5 V
VOUT = Vin -2.1 V
10
8.0
0
02.0 4.0 6.0 8.0 10
Vin, INPUT VOLTAGE (V)
2.0
4.0
6.0
12
IOUT, OUTPUT SOURCE CURRENT (mA)
Vin -1.0 V
Vin -0.5 V
IOUT, OUTPUT SOURCE CURRENT (mA)
Vin -1.5 V
Vin -1.0 V
Vin -0.5 V
VOUT = Vin -2.1 V
Vin -1.5 V
Vin -1.0 V
Vin -0.5 V
TA = 25°CTA = 25°C
TA = 25°C
NCP302, NCP303
http://onsemi.com
15
OPERATING DESCRIPTION
The NCP302 and NCP303 series devices consist of a
precision voltage detector that drives a time delay generator.
Figures 36 and 37 show a timing diagram and a typical
application. Initially consider that input voltage Vin is at a
nominal level and it is greater than the voltage detector upper
threshold (VDET+). The voltage at Pin 5 and capacitor CD
will be at the same level as Vin, and the reset output (Pin 1)
will be in the high state for active low devices, or in the low
state for active high devices. If there is a power interruption
and Vin becomes significantly deficient, it will fall below the
lower detector threshold (VDET–) and the external time
delay capacitor CD will be immediately discharged by an
internal N–channel MOSFET that connects to Pin 5. This
sequence of events causes the Reset output to be in the low
state for active low devices, or in the high state for active
high devices. After completion of the power interruption,
Vin will again return to its nominal level and become greater
than the VDET+. The voltage detector will turn off the
N–channel MOSFET and allow pullup resistor RD to charge
external capacitor CD, thus creating a programmable delay
for releasing the reset signal. When the voltage at Pin 5
exceeds the inverter/buffer threshold, typically 0.675*Vin,
the reset output will revert back to its original state. The reset
output time delay versus capacitance is shown in Figures 11
through 13. The voltage detector and inverter/buffer have
built–in hysteresis to prevent erratic reset operation.
Although these device series are specifically designed for
use as reset controllers in portable microprocessor based
systems, they offer a cost–effective solution in numerous
applications where precise voltage monitoring and time
delay are required. Figures 37 through 39 show various
application examples.
Figure 36. Timing Waveforms
tD2
Vin
VDET+
VDET–
Input Voltage, Pin 2
Capacitor, Pin 5
Vin
0 V
Reset Output (Active Low), Pin 1
Vin
Reset Output (Active High), Pin 1 Vin
0 V
0.675*Vin
VDET–
VDET–
NCP302, NCP303
http://onsemi.com
16
APPLICATION CIRCUIT INFORMATION
Figure 37. Microprocessor Reset Circuit (NCP302 and NCP303 Series)
2 Input
1
Reset Output
Gnd
5
CD
NCP302
LSN27T1
Figure 38. Battery Charge Indicator (NCP302 Series)
2 Input
1
Reset Output
Gnd Gnd
VDD
Reset
VDD
5
CD
CD
NCP302
Series
3
3
Microprocessor
* Required for NCP303
Vin < 2.7 ON
Vin > 2.835 ON
To Additional Circuitry
2 Input
1
Reset Output
Gnd
5
CD
NCP303
LSN45T1
Figure 39. Missing Pulse Detector or Frequency Detector (NCP303L)
3
Vsupply
To Additional Circuitry
CD
*
Reset Output
CD
Input
0.675*Vin
Missing Pulse
tD2
470 k
0.001 F
2.85 V
2.70 V
0 V
5.0 V
1.0 V
0 V
Vin
NCP302, NCP303
http://onsemi.com
17
PACKAGE DIMENSIONS
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. MAXIMUM LEAD THICKNESS INCLUDES LEAD
FINISH THICKNESS. MINIMUM LEAD THICKNESS
IS THE MINIMUM THICKNESS OF BASE
MATERIAL.
DIM MIN MAX MIN MAX
INCHESMILLIMETERS
A2.90 3.10 0.1142 0.1220
B1.30 1.70 0.0512 0.0669
C0.90 1.10 0.0354 0.0433
D0.25 0.50 0.0098 0.0197
G0.85 1.00 0.0335 0.0413
H0.013 0.100 0.0005 0.0040
J0.10 0.26 0.0040 0.0102
K0.20 0.60 0.0079 0.0236
L1.25 1.55 0.0493 0.0610
M0 10 0 10
S2.50 3.00 0.0985 0.1181
0.05 (0.002)
123
54
S
AG
L
B
D
H
C
KM
J
TSOP–5
SN SUFFIX
PLASTIC PACKAGE
CASE 483–01
ISSUE A
NCP302, NCP303
http://onsemi.com
18
MINIMUM RECOMMENDED FOOTPRINT FOR SURFACE MOUNTED APPLICATIONS
Surface mount board layout is a critical portion of the
total design. The footprint for the semiconductor packages
must be the correct size to insure proper solder connection
interface between the board and the package. With the
correct pad geometry, the packages will self align when
subjected to a solder reflow process.
inches
mm
0.028
0.7
0.074
1.9
0.037
0.95
0.037
0.95
0.094
2.4
0.039
1.0
TSOP–5
(Footprint Compatible with SOT23–5)
NCP302, NCP303
http://onsemi.com
19
Notes
NCP302, NCP303
http://onsemi.com
20
ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes
without further notice to any products herein. SCILLC makes no warranty , representation or guarantee regarding the suitability of its products for any particular
purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability,
including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be
validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others.
SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or
death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold
SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable
attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim
alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer.
PUBLICATION ORDERING INFORMATION
CENTRAL/SOUTH AMERICA:
Spanish Phone: 303–308–7143 (Mon–Fri 8:00am to 5:00pm MST)
Email: ONlit–spanish@hibbertco.com
ASIA/PACIFIC: LDC for ON Semiconductor – Asia Support
Phone: 303–675–2121 (Tue–Fri 9:00am to 1:00pm, Hong Kong Time)
Toll Free from Hong Kong & Singapore:
001–800–4422–3781
Email: ONlit–asia@hibbertco.com
JAPAN: ON Semiconductor, Japan Customer Focus Center
4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan 141–0031
Phone: 81–3–5740–2745
Email: r14525@onsemi.com
ON Semiconductor Website: http://onsemi.com
For additional information, please contact your local
Sales Representative.
NCP302/D
NORTH AMERICA Literature Fulfillment:
Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 303–675–2175 or 800–344–3860 Toll Free USA/Canada
Fax: 303–675–2176 or 800–344–3867 Toll Free USA/Canada
Email: ONlit@hibbertco.com
Fax Response Line: 303–675–2167 or 800–344–3810 Toll Free USA/Canada
N. American Technical Support: 800–282–9855 Toll Free USA/Canada
EUROPE: LDC for ON Semiconductor – European Support
German Phone: (+1) 303–308–7140 (Mon–Fri 2:30pm to 7:00pm CET)
Email: ONlit–german@hibbertco.com
French Phone: (+1) 303–308–7141 (Mon–Fri 2:00pm to 7:00pm CET)
Email: ONlit–french@hibbertco.com
English Phone: (+1) 303–308–7142 (Mon–Fri 12:00pm to 5:00pm GMT)
Email: ONlit@hibbertco.com
EUROPEAN TOLL–FREE ACCESS*: 00–800–4422–3781
*Available from Germany, France, Italy, UK
