KA1M0380RB-TU - Fairchild Semiconductor

www.fairchildsemi.com

Rev. .5.0

Features

• Precision fixed operating frequency

•KA1L0380B/KA1L0380RB (50KHz)

•KA1M0380RB (67KHz)

•KA1H0380RB (100KHz)

• Pulse by pulse over current limiting

• Over load protection

• Over voltage protection (Min. 23V)

• Internal thermal shutdown function

• Unde r volt a g e lock out

• Internal high voltage sense FET

•Auto restart (

KA1L0380RB/KA1M0380RB/KA1H0380RB)

Description

The SPS product family is specially designed for an off-line

SMPS with mini mal externa l components. The SP S consis t of

high voltage power SenseFET and current mode PWM control-

ler IC. PWM controller features integrated fixed oscillator ,

under voltage lock out, leading edge blanking, optimized gate

turn-on/turn-of f driver , therma l shut down protection, over volt-

age protection, temperature compensated precision curr ent

sources for loop compensation and fault protection circuit.

Compared to discrete MOSFET and controller or RCC switch-

ing converter solution, a SPS can reduce total component count,

design size, weight and at the same time increase & efficiency,

productivity, and system reliability. It has a basic platform well

suited for cost effe ctive design i n either a f lyback converter or a

forward converter.

TO-220F-4L

1. GND 2. DRAIN 3. VCC 4. FB

Internal Block Diagram

#3 V

32V

A9V

2.5R

1mA

0.1V

−

OVER VOLTAGE S/D

−

7.5V

25V

Thermal S/D

Power on reset

−

L.E.B

OSC

Vref Internal

bias

Good

logic

SFET #2 DRAIN

#1 GND

#4 FB

KA1L0380B/KA1L0380RB/KA1M0380RB/

KA1H0380RB

Fairchild Power Switch(SPS)

KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB

Absolute Maximum Ratings

Notes:

1. Tj=25°C to 150°C

2. Repetitive rating: Pulse width limited by maximum junction temperature

3. L=51mH, VDD=50V, RG=25Ω, starting Tj=25°C

4. L=13µH, starting Tj=25°C

Parameter Symbol Value Unit

Drain-source (GND) voltage (1) VDSS 800 V

Drain-Gate voltage (RGS=1MΩ)V

DGR 800 V

Gate-source (GND) voltage VGS ±30 V

Drain current pulsed (2) IDM 12 ADC

Single pulsed avalanche energy (3) EAS 95 mJ

Avalanche current(4) IAS 6A

Continuous drain current (TC=25°C) ID3.0 ADC

Continuous drain current (TC=100°C) ID2.1 ADC

Supply voltage VCC 30 V

Analog input voltage range VFB −0.3 to VSD V

Total power dissipation PD35 W

Derating 0.28 W/°C

Operating temperature TOPR −25 to +85 °C

Storage temperature TSTG −55 to +150 °C

KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB

Electrical Characteristics (SFET part)

(Ta=25°C unless otherwise specified)

Note:

Pulse tes t: Pulse wid th ≤ 300µS, duty cycle ≤ 2%

Parameter Symbol Condition Min. Typ. Max. Unit

Drain-source breakdown voltage BVDSS VGS=0V, ID=50µA 800 - - V

Zero gate voltage drain current IDSS

VDS=Max., Rating,

VGS=0V --50µA

VDS=0.8Max., Rating,

VGS=0V, TC=125°C- - 200 µA

Static drain-source on resistance (Note) RDS(ON) VGS=10V, ID=1.5A - 4.0 5.0 Ω

Forward transconductance (Note) gfs VDS=15V, ID=1.5A 1.5 2.5 - S

Input capacitance Ciss VGS=0V, VDS=25V,

f=1MHz

- 779 - pFOutput capacitance Coss - 75.6 -

Reverse transfer capacitance Crss - 24.9 -

Turn on delay time td(on) VDD=0.5BVDSS, ID=3.0A

(MOSFET switching

time are essentially

independent of

operating temperature)

-40-

Rise time tr - 95 -

Turn off delay time td(off) - 150 -

Fall time tf - 60 -

Total gate charge

(gate-source+gate-drain) Qg VGS=10V, ID=3.0A,

VDS=0.5BVDSS (MOSFET

switching time are

essentially independent of

operating temperature)

--34

Gate-source charge Qgs - 7.2 -

Gate-drain (Miller) charge Qgd - 12.1 -

----=

KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB

Electrical Characteristics (CONTROL part)

(Ta=25°C unless otherwise specified)

Notes:

1. These parameters, although guaranteed, are not 100% tested in production

2. These parameters, although guaranteed, are tested in EDS (wafer test) process

Parameter Symbol Condition Min. Typ. Max. Unit

REFERENCE SECTION

Output voltage (1) Vref Ta=25°C 4.80 5.00 5.20 V

Temperature Stability (1)(2) Vref/∆T−25°C≤Ta≤+85°C-0.30.6mV/°C

OSCILLATOR SECTION

Initial accuracy FOSC

KA1L0380B 45 50 55

kHz

KA1L0380RB 45 50 55

KA1M0380RB 61 67 73

KA1H0380RB 90 100 110

Frequency change with temperature (2) ∆F/∆T−25°C≤Ta≤+85°C-±5±10 %

PWM SECTION

Maximum duty cycle Dmax

KA1L0380B 74 77 80

KA1L0380RB 74 77 80

KA1M0380RB 74 77 80

KA1H0380RB 64 67 70

FEEDBACK SECTION

Feedback source current IFB Ta=25°C, 0V≤Vfb≤3V 0.7 0.9 1.1 mA

Shutdown delay current Idelay Ta=25°C, 5V≤Vfb≤VSD 4.0 5.0 6.0 µA

OVER CURRENT PROTECTION SECTION

Over current protection IL(max) Max. inductor current 1.89 2.15 2.41 A

UVLO SECTION

Start threshold voltage Vth(H) - 14 15 16 V

Minimum operating voltage Vth(L) After turn on 9 10 11 V

TOTAL STANDBY CURRENT SECTION

Start current IST VCC=14V 0.1 0.3 0.45 mA

Operating supply current

(control part only) IOPR Ta=25°C 6 12 18 mA

VCC zener voltage VZICC=20mA 30 32.5 35 V

SHUTDOWN SECTION

Shutdown Feedback voltage VSD -6.97.58.1V

Thermal shutdown temperature (Tj) (1) TSD - 140 160 - °C

Over voltage protection voltage VOVP -232528V

KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB

Typical Perfo rma n ce Cha ra cte ristic s

(These characteristic graphs are normalized at Ta=25°C)

F ig. 1 O p era t ing F r equenc y

0.8

0.85

0.9

0.95

1.05

1.1

1.15

1.2

-25 0 25 50 75 100 125 150

Fosc

F ig. 2 Feedback Source Cur r ent

0.8

0.85

0.9

0.95

1.05

1.1

1.15

1.2

-25 0 25 50 75 100 125 150

Ifb

F ig.3 Operating Curr ent

0.8

0.85

0.9

0.95

1.05

1.1

1.15

1.2

-25 0 25 50 75 100 125 150

Iop

Fig.4 Max Induct o r C ur rent

0.8

0.85

0.9

0.95

1.05

1.1

-25 0 25 50 75 100 125 150

Ipeak

F ig. 5 S t ar t up Curr ent

0.5

0.7

0.9

1.1

1.3

1.5

-25 0 25 50 75 100 125 150

Istart

Fig. 6 Start T hreshold Voltage

0.85

0.9

0.95

1.05

1.1

1.15

-25 0 25 50 75 100 125 150

Vstart

Temperature [°C] Temperature [°C]

Temperature [°C]Temperature [°C]

Figure 1. Operating Frequency Figure 2. Feedback Source Current

Figure 3. Operating Current Figure 4. Max. Inductor Current

Figure 5. Start up Current Figure 6. Start Threshold Voltage

IL(MAX)

IST Vth(H)

IOPR

KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB

Typical Perfo rma nce Characte ristic s (Continued)

(These characteristic graphs are normalized at Ta=25°C)

Fig. 7 Stop Threshold Volt a ge

0.85

0.9

0.95

1.05

1.1

1.15

-25 0 25 50 75 100 125 150

Vstop

Fi g .8 Ma xi mu m D u ty C yc l e

0.85

0.9

0.95

1.05

1.1

1.15

-25 0 25 50 75 100 125 150

Dmax

Fig. 9 Vcc Zener Voltage

0.8

0.85

0.9

0.95

1.05

1.1

1.15

1.2

-25 0 25 50 75 100 125 150

Fig.10 S hutdown Feedback Voltage

0.85

0.9

0.95

1.05

1.1

1.15

-25 0 25 50 75 100 125 150

Vsd

Fig.11 S hutdown De lay Cur rent

0.8

0.85

0.9

0.95

1.05

1.1

1.15

1.2

-25 0 25 50 75 100 125 150

Idelay

F ig. 12 Over Volt age Protection

0.85

0.9

0.95

1.05

1.1

1.15

-25 0 25 50 75 100 125 150

Vovp

Temperature [°C] Temperature [°C]

Temperature [°C]Temperature [°C]

Figure 7. Stop Threshold Voltage Figure 8. Maximum Duty Cycle

Figure 9. VCC Zener Voltag e Figure 10. Shutdown Feedback Voltage

Figure 11. Shutdown Delay Current Figure 12. Over Voltage Protection

Vth(L)

KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB

Typical Perfo rma nce Characte ristic s (Continued)

(These characteristic grahps are normalized at Ta=25°C)

Figure 13. Drain Source Turn-on Resistance

Fig.14 Drain Source Turn-on

Resistance

0.5

1.5

2.5

-25 0 25 50 75 100 125 150

Rdson

Temperature [°C]

KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB

Package Dimensions

TO-220F-4L

KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB

Package Dimensions (Continued)

TO-220F-4L (Forming)

KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB

Ordering Information

TU : Non Forming Type

YDTU : Forming Type

Product Number Package Rating Fosc

KA1L0380B-TU TO-220F-4L 800V, 3A 50kHz

KA1L0380B-YDTU TO-220F-4L(Forming)

KA1L0380RB-TU TO-220F-4L 800V, 3A 50kHz

KA1L0380RB-YDTU TO-220F-4L(Forming)

KA1M0380RB-TU TO-220F-4L 800V, 3A 67kHz

KA1M0380RB-YDTU TO-220F-4L(Forming)

KA1H0380RB-TU TO-220F-4L 800V, 3A 100kHz

KA1H0380RB-YDTU TO-220F-4L(Forming)

KA1L0380B/KA1L0380RB/KA1M0380RB/KA1H0380RB

9/7/00 0.0m 001

Stock#DSxxxxxxxx

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or (b) support or sustain life, and (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 a significant injury of the

user.

2. A critical component in any component of a life support

device or syst em who se failure to perform can be

reasonably expected to cause the failure of the life support

device or system, or to affect its safety or effec tiv ene ss.

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