KA5M0280R-TU - Fairchild Semiconductor

www.fairchildsemi.com

Rev.1.0.2

Features

• Precision fixed operating frequency (100/67/50KHz)

• Pulse by pulse current limiting

• Over cu rrent protection

• Over voltage protection (Min. 25V)

• Internal thermal shutdown function

• Under vol ta g e lock out

• Internal high voltage sense FET

• Auto-restart mode

Description

The Fairchild Power Switch(FPS) product family is specially

designed for an off -line SMPS with minimal external

components. The Fairchild Power Switch(FPS) consist of high

voltage power SenseFET and current mode PWM IC. Included

PWM controller features integrated fixed oscillator, under

voltage lock out, leading edge bl anking, optimized gate turn-on /

turn-of f driver, thermal shut down protection, over voltage

protection, and temperature compensated precision current

sources for loop compensation and fault protection circuitry.

compared to discrete MOSFET and controller or RCC

switching converter solution, a Fairchild Power Switch(FPS)

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 cos t-effective

design in either a flyback converter or a forward converter.

TO-220F-4L 8-DIP TO220-5L

111. Drain

2. GND

3. Vcc

4. FB

5. S/S

1.6.7.8. Dra in

2. GND

3. Vcc

4. FB

5. NC

1. GND

2. Drain

3. Vcc

4. FB

Internal Block Diagram

32V

2.5R1R

1mA

0.1V

−

OVER VOL TAGE S/D

−

7.5V

27V

Thermal S/D

Power on reset

−

L.E.B

OSC

Vref Internal

bias

Good

logic

SFET DRAIN

GND

Soft Start

KA5x02xx-SERIES

KA5H0265RC, KA5M0265R, KA5L0265R,

KA5H02659RN/KA5M02659RN, KA5H0280R,

KA5M0280R

Fairchil d Power Switch(FPS)

KA5X02XX-SERIES

Absolute Maximum Ratings

(Ta=25°C, unless otherwise specified)

Note:

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

2. L=51mH, starting Tj=25°C

Characteristic Symbol Value Unit

KA5x0265xRx

Maximum Drain Voltage VD,MAX 650 V

Drain-Gate Voltage (RGS=1MΩ)V

DGR 650 V

Gate-Source (GND) Voltage VGS ±30 V

Drain Current Pulsed (1) IDM 8.0 ADC

Continuous Drain Current (TC=25°C) ID2.0 ADC

Continuous Drain Current (TC=100°C) ID1.3 ADC

Single Pulsed Avalanche Energy (2 ) EAS 68 mJ

Maximum Supply Voltage VCC,MAX 30 V

Analog Input Voltage Range VFB −0.3 to VSD V

Total Power Dissipation PD42 W

Derating 0.33 W/°C

Operating Junction Temperature. TJ+160 °C

Operating Ambient Temperature. TA−25 to +85 °C

Storage Temperature Range. TSTG −55 to +150 °C

KA5x0280R

Maximum Drain Voltage VD,MAX 800 V

Drain-Gate Voltage (RGS=1MΩ)V

DGR 800 V

Gate-Source (GND) Voltage VGS ±30 V

Drain Current Pulsed (1) IDM 8.0 ADC

Continuous Drain Current (TC=25°C) ID2.0 ADC

Continuous Drain Current (TC=100°C) ID1.3 ADC

Single Pulsed Avalanche Energy (2 ) EAS 90 mJ

Maximum Supply Voltage VCC,MAX 30 V

Analog Input Voltage Range VFB −0.3 to VSD V

Total Power Dissipation PD35 W

Derating 0.28 W/°C

Operating Junction Temperature. TJ+160 °C

Operating Ambient Temperature. TA−25 to +85 °C

Storage Temperature Range. TSTG −55 to +150 °C

KA5X02XX-SERIES

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

KA5x0265xRx

Drain-source breakdown voltage BVDSS VGS=0V, ID=50µA 650 - - V

Zero gate voltage drain current IDSS VDS=Max. Rating, VGS=0V - - 50 µA

VDS=0.8Max. Rating,

VGS=0V, TC=125°C- - 200 µA

Static drain-source on resistance (note) RDS(ON) VGS=10V, ID=0.5A - 5.0 6.0 Ω

Forward transconductance (note) gfs VDS=50V, ID=0.5A 1.5 2.5 - S

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

f=1MHz

- 550 - pFOutput capacitance Coss - 38 -

Reverse transfer capacitance Crss - 17 -

Turn on delay time td(on) VDD=0.5BVDSS, ID=1.0A

(MOSFET switching

time are essentially

independent of

operating temperature)

-20-

Rise time tr - 15 -

Turn off delay time td(off) - 55 -

Fall time tf - 25 -

Total gate charge

(gate-source+gate-drain) Qg VGS=10V, ID=1.0A,

VDS=0.5BVDSS (MOSFET

switching time are

essentially independent of

operating temperature)

--35

Gate-source charge Qgs - 3 -

Gate-drain (M iller) charge Qgd - 12 -

KA5x0280R

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

Zero gate voltage drain current IDSS VDS=Max. Rating, VGS=0V - - 50 µA

VDS=0.8Max. Rating,

VGS=0V, TC=125°C- - 200 µA

Static drain-source on resistance (note) RDS(ON) VGS=10V, ID=0.5A - 5.6 7.0 Ω

Forward transconductance (note) gfs VDS=50V, ID=0.5A 1.5 2.5 - S

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

f=1MHz

- 250 - pFOutput capacitance Coss - 52 -

Reverse transfer capacitance Crss - 25 -

Turn on delay time td(on) VDD=0.5BVDSS, ID=1.0A

(MOSFET switching

time are essentially

independent of

operating temperature)

-21-

Rise time tr - 28 -

Turn off delay time td(off) - 77 -

Fall time tf - 24 -

Total gate charge

(gate-source+gate-drain) Qg VGS=10V, ID=1.0A,

VDS=0.5BVDSS (MOSFET

switching time are

essentially independent of

operating temperature)

--60

Gate-source charge Qgs - 15 -

Gate-drain (M iller) charge Qgd - 20 -

----=

KA5X02XX-SERIES

Electrical Characteristics (CONTROL part)

(Ta=25°C unless otherwise specified)

Note:

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

UVLO SECTION

Start Threshold Voltage VSTART VFB=GND 14 15 16 V

Stop Threshold Voltage VSTOP VFB=GND 8.499.6V

OSCILLATOR SECTION

Initial accuracy FOSC KA5H0265xRx

KA5H0280R 90 100 110 kHz

Initial accuracy FOSC KA5M0265xRx

KA5M0280R 61 67 73 kHz

Initial accuracy FOSC KA5L0265R 45 50 55 kHz

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

Maximum duty cycle Dmax KA5H0265xRx

KA5H0280R 62 67 72 %

Maximum duty cycle Dmax KA5M0265xRx

KA5M0280R

KA5L0265R 72 77 82 %

FEEDBACK SECTION

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

Shutdown feedback voltage VSD Vfb ≤ 6.5V 6.9 7.5 8.1 V

Shutdown delay current Idelay Ta=25°C, 5V ≤ Vfb ≤ VSD 456µA

SOFT START SECTION

Soft Start Voltage VSS KA5H0265RC 4.7 5.0 5.3 V

Soft Start Current ISS 0.8 1.0 1.2 mA

REFERENCE SECTION

Output voltage (1) Vref Ta=25°C 4.805.005.20 V

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

CURRENT LIMIT(SELF-PROTECTION)SECTION

Peak Current Limit IOVER KA5x02659RN 0.79 0.9 1.01 A

Peak Current Limit IOVER KA5x0265Rx

KA5x0280R 1.05 1.2 1.34 A

PROTECTION SECTION

Over voltage protection VOVP VCC ≥ 24V 25 27 29 V

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

TOTAL DEVICE SECTION

Start Up Current ISTART VCC=14V - 100 170 µA

Operating supply current

(control part only) IOPR VCC ≤ 28 - 7 12 mA

KA5X02XX-SERIES

Typica l Perfo rma nce Characteristics

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

Fig. 1 Oper ating Fr eque ncy

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

Fig.2 F e edback Sourc e C ur 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

Ifb

Fig. 3 Operating Current

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 I n duct or Cur r ent

0.8

0.85

0.9

0.95

1.05

1.1

-25 0 25 50 75 100 125 150

Ipeak

Fig.5 Start up Cu r r e nt

0.5

0.7

0.9

1.1

1.3

1.5

-25 0 25 50 75 100 125 150

Istart

Fig. 6 S tar t Thr eshold Voltage

0.85

0.9

0.95

1.05

1.1

1.15

-25 0 25 50 75 100 125 150

Vstart

Figure 1. Operating Frequency Figure 2. Feedback Source Current

Figure 3. Op erating Supply Cu rrent Figure 4. Peak Current Limit

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

Temperature [°C] Temperature [°C]

Iover

KA5X02XX-SERIES

Typica l Perfo rmance Characteristics (Continued)

(These characteristic graphs are normalized at Ta=25°

°°

°C)

F ig .7 S top T hr e shold Volt ag e

0.85

0.9

0.95

1.05

1.1

1.15

-25 0 25 50 75 100 125 150

Vstop

F ig .8 Maximum Dut y Cyc le

0.85

0.9

0.95

1.05

1.1

1.15

-25 0 25 50 75 100 125 150

Dmax

F ig .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

F ig .10 S hutdown Feedbac k Voltage

0.85

0.9

0.95

1.05

1.1

1.15

-25 0 25 50 75 100 125 150

Vsd

F ig.11 S hut dow n Delay 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

Idelay

F ig .12 Over Voltage P r otec tion

0.85

0.9

0.95

1.05

1.1

1.15

-25 0 25 50 75 100 125 150

Vovp

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

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

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

Temperature [°C] Temperature [°C]

KA5X02XX-SERIES

Typica l Perfo rmance Characteristics (Continued)

(These characteristic graphs are normalized at Ta=25°

°°

°C)

Figure13. Soft Start Voltage Figure 14. Static Drain-Source on Resistance

Fig.13 Soft Start Voltage

0.85

0.9

0.95

1.05

1.1

1.15

-25 0 25 50 75 100 125 150

Vss

Fig. 1 4 Drain So ur ce T ur n - on

Resistance

0.5

1.5

2.5

-25 0 25 50 75 100 125 150

Rdson

Temperature [°C] Temperature [°C]

()

KA5X02XX-SERIES

Package Dimensions

TO-220F-4L

KA5X02XX-SERIES

Package Dimensions (Continued)

TO-220F-4L(Forming)

KA5X02XX-SERIES

Package Dimensions (Continued)

8-DIP

KA5X02XX-SERIES

Package Dimensions (Continued)

TO-220-5L

KA5X02XX-SERIES

Package Dimensions (Continued)

TO-220-5L(Forming)

KA5X02XX-SERIES

Ordering Information

TU : Non Forming Type

YDTU : Forming Type

Product Number Package Marking Code BVDSS FOSC RDS(on)

KA5H0265RC-TU TO-220-5L 5H0265RC 650V 100kHz 5Ω

KA5H0265RC-YDTU TO-220-5L(Forming)

KA5M0265R-TU TO-220F-4L 5M0265R 650V 67kHz 5Ω

KA5M0265R-YDTU TO-220F-4L(Forming)

KA5L0265R-TU TO-220F-4L 5L0265R 650V 50kHz 5Ω

KA5L0265R-YDTU TO-220F-4L(Forming)

Product Number Package Marking Code BVDSS FOSC RDS(on)

KA5H0280R-TU TO-220F-4L 5H0280R 800V 100kHz 5.6Ω

KA5H0280R-YDTU TO-220F-4L(Forming)

KA5M0280R-TU TO-220F-4L 5M0280R 800V 67kHz 5.6Ω

KA5M0280R-YDTU TO-220F-4L(Forming)

Product Number Package Marking Code BVDSS FOSC RDS(on)

KA5H02659RN 8-DIP 5H02659R 650V 100kHz 5Ω

KA5M02659RN 8-DIP 5M02659R 650V 67kHz 5Ω

KA5X02XX-SERIES

10/17/01 0.0m 001

Stock#DSxxxxxxxx

 2001 Fairchild Semicond uctor Corporation

LIFE SU PP ORT POL ICY

FAIRCHILD’S PRODUCTS AR E NOT AUTHORIZED FOR USE AS C RITICAL COMPONENTS I N LIFE S UPPORT DEVICE S

OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR

CORPORA TION. As used he rein :

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, 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.

www.fairchildsemi.com

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PRO DUCTS HEREIN TO IMPROVE RELIABILITY, FUN C TION OR DESIGN . FAIRCHILD DO ES NOT ASSUME ANY

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DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIG HTS, NOR THE RIGHTS OF OTHERS.