FEATURES
PRODUCT SUMMARY
KA1M0380
1.GND 2.DRAIN 3.Vcc 4.FB
Part Number
KA1M0380
BVdss
800V
Rds(on)
5Ω
I D
3A
- Precision fixed operating frequency (70KHz)
- Pulse by pulse over current limiting
- Over load protection
- Internal thermal shutdown function
- Under voltage lockout
- Internal high voltage sense FET
- Low start up current (
<0.4mA)
TO-220F
SPS
ABSOLUTE MAXIMUM RATINGS ( Ta = 25 ΟC , unless otherwise specified )
Characteristics Symbol Unit
Value
Drain - Source(GND) Voltage (1) V DSS 800 V
Notes: (1) TJ = 25ΟC to 150ΟC
(2) VDD = 400V, ID = Max. Rating, VGS = 10V
Continuous Drain Current (Tc = 25
ΟC) ID 3.0 A DC
- 25 ~ + 85
T STG ΟC
Supply Voltage V CC 30 V
Analog Input Voltage Range V FB -0.3 ~ VSD V
Total Power Dissipation P D ( wt H/S) 20 W
Operating Temperature T OPR
Derating 0.28 W/ ΟC
- 55 ~ + 150
ΟC
Storage Temperature
Drain - Gate Voltage (RGS =1MΩ) (1) V DGR 800 V
Gate - Source(GND) Voltage V GS V
Rise Time (2) Tr 95
Fall Time (2) Tf 60 ns
ns
Drain-Sourse Off State Leakage Current
( Vds = 0V, Vgs = 0V ) IDSS 250 uA
30
+
_
©1 999 Fairchild Semiconductor Corporation
Rev. B
ELECTRICAL CHARACTERISTICS ( Control part )
( Ta = 25ΟC unless otherwise specified )
Characteristics
Symbol Test Conditions
Min Typ Max Unit
62
F OSC Initial Accuracy
∆F / ∆T Frequency Change with
Temperature
D MAX Maximum Duty Cycle
I FB Feedback Source Current
Idelay Shutdown Delay Current
67 72 KHz
%-25ΟC Ta +85ΟC
%72
mA1
uA 5
REFERENCE SECTION
Output VoltageVref
Vref/ ∆TTemperature Stability
Ta = 25 ΟC
4.80 5.00 5.20 V
- 0.3 0.6 mV/ ΟC
OSCILLATOR SECTION
Ta = 25 ΟC
PWM SECTION
6762
FEEDBACK SECTION
Ta = 25 ΟC ,
Vfb = 0
5 V Vfb V
SD
IL(MAX) Over Current Protection A
OVER CURRENT PROTECTION SECTION
Max. Inductor Current
V th(H) Start Threshold Voltage
V th(L) Minimum Operating Voltage
14 15 16 V
9 10 11 VAfter turn on
UVLO SECTION
KA1M0380
1.8 1.5 2.2
-25ΟCTa +85ΟCNote1
5
+
_10
+
_
<
_
<
_
<
_<
_
<
_<
_
SPS
ELECTRICAL CHARACTERISTICS ( Continued)
Characteristics
Symbol Test Conditions
Min Typ Max Unit
( Ta = 25ΟC unless otherwise specified )
ICC = 20mA
IST Start up Current
IOPR Operating Supply Current
( control part only )
mA0.25 0.4
mA15 18
VCC = 14V
TOTAL STANDBY CURRENT SECTION
V Z Vcc Zener Voltage V32.5
SHUTDOWN SECTION
V SD Shutdown Feedback Voltage V7.6
Note 1
T SD ThermalShutdownTemperature(Tj) ΟC
150
Notes: (1) These parameters, although guaranteed,are not 100% tested in production
(2) In output section, the design target is the maximum current after current clamping
(3) These parameters, although guaranteed, are tested in EDS(wafer test) process.
KA1M0380
78.2
Ta = 25 ΟC ,
30 35
SPS
TRADEMARKS
ACEx™
CoolFET™
CROSSVOLT™
E2CMOSTM
FACT™
FACT Quiet Series™
FAST®
FASTr™
GTO™
HiSeC™
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is
not intended to be an exhaustive list of all such trademarks.
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FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROV AL OF FAIRCHILD SEMICONDUCTOR CORPORA TION.
As used herein:
ISOPLANAR™
MICROWIRE™
POP™
PowerTrench™
QS™
Quiet Series™
SuperSOT™-3
SuperSOT™-6
SuperSOT™-8
TinyLogic™
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant into
the body, or (b) support or sustain life, or (c) whose
failure to perform when properly used in accordance
with instructions for use provided in the labeling, can be
reasonably expected to result in significant injury to the
user.
2. A critical component is any component of a life
support device or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system, or to affect its safety or
effectiveness.
PRODUCT ST A TUS DEFINITIONS
Definition of Terms
Datasheet Identification Product Status Definition
Advance Information
Preliminary
No Identification Needed
Obsolete
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
Formative or
In Design
First Production
Full Production
Not In Production
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FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER
NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD
DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICA TION OR USE OF ANY PRODUCT
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UHC™
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