Datasheet KA5H0280R, KA5H0265RC, KA5H02659RN, KA5M0265R, KA5M02659RN Datasheet (Fairchild Semiconductor)

www.fairchildsemi.com

KA5x02xx-SERIES

KA5H0265RC, KA5M0265R, KA5L0265R,
KA5H02659RN/KA5M02659RN, KA5H0280R,
KA5M0280R
Fairchi ld Pow er Sw itch( FP S)

Features

• Precision Fixed Operating Frequency (100/67/50kHz)

• Low Start-up Current (Typ. 100uA)

• Pulse by Pulse Current Limiting

• Over Load Protection

• Over Voltage Protection (Min. 25V)

• Internal Thermal Shutdown Function

• Under Voltage Lockout

• 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 blanking, optimized gate turn-on/
turn-off driver , thermal shut down protection, over voltage
protection, and temperature compensated precision current
sources for loop compensation and fault protection circuitry­compared to discrete MOSFET and controller or R
switching converter solution. The 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 platf orm well suite d for cost-effe ctive
design in either a flyback converter or a forward converter .

TO-220F-4L

1

1. GND

2. Drain

3. Vcc

4. FB

8-DIP TO220-5L

1

1.6.7.8. Drain

2. GND

3. Vcc

4. FB

5. NC

1

1. Drain

2. GND

3. Vcc

4. FB

5. S/S

CC

Internal Block Diagram

V

CC

32V

Soft Start

*

5V

uA

FB

* KA5H0265RC

©2003 Fairchild Semiconductor Corporation

µ

5

7.5V

27V

A

2.5R

1mA

1R

9V

+

−

+

−

Thermal S/D

OVER VOLTAGE S/D

OSC

−

+

5V

Vref

L.E.B

0.1V

Good

logic

S
R

Internal

bias

Q

S
R

Power on reset

SFET

Q

DRAIN

GND

Rev.1.0.4

KA5X02XX-SERIES

Absolute Maximum Ratings

(Ta=25°C, unless otherwise specified)

Characteristic Symbol Value Unit
KA5x0265xRx

Drain-Gate Voltage (R
Gate-Source (GND) Voltage V
Drain Current Pulsed
Continuous Drain Current (TC=25°C) I
Continuous Drain Current (TC=100°C) I
Single Pulsed Avalanche Energy
Maximum Supply Voltage V
Analog Input Voltage Range V

Total Power Dissipation
Operating Junction Temperature. T

Operating Ambient Temperature. T
Storage Temperature Range. T

KA5x0280R

Drain-Gate Voltage (R
Gate-Source (GND) Voltage V
Drain Current Pulsed
Continuous Drain Current (TC=25°C) I
Continuous Drain Current (TC=100°C) I
Single Pulsed Avalanche Energy
Maximum Supply Voltage V
Analog Input Voltage Range V

Total Power Dissipation
Operating Junction Temperature. T

Operating Ambient Temperature. T
Storage Temperature Range. T

=1MΩ)V

GS

(1)

(2)

DGR

GS

I

DM

D
D

E

AS

CC,MAX

FB

P

D

Darting 0.33 W/°C

J
A

STG

=1MΩ)V

GS

(1)

(2)

DGR

GS

I

DM

D
D

E

AS

CC,MAX

FB

P

D

Darting 0.28 W/°C

J
A

STG

650 V
±30 V

8.0 A

2.0 A

1.3 A
68 mJ
30 V

-0.3 to V

SD

42 W

+160 °C

-25 to +85 °C

-55 to +150 °C

800 V
±30 V

8.0 A

2.0 A

1.3 A
90 mJ
30 V

-0.3 to V

SD

35 W

+160 °C

-25 to +85 °C

-55 to +150 °C

DC
DC
DC

V

DC
DC
DC

V

Note:

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

2. L = 51mH, starting T

= 25°C

j

2

KA5X02XX-SERIES

Electrical Characteristics (SFET Part)

(Ta=25°C unless otherwise specified)

Parameter Symbol Condition Min. Typ. Max. Unit
KA5x0265xRx

Drain-Source Breakdown Voltage BV

Zero Gate Voltage Drain Current I

Static Drain-Source on Resistance
Forward Transconductance

(Note)

(Note)

DSS

DSS

R

DS(ON)

gfs VDS=50V, ID=0.5A 1.5 2.5 - S

Input Capacitance Ciss

Reverse Transfer Capacitance Crss - 17 ­Turn on Delay Time td(on)
Rise Time tr - 15 ­Turn Off Delay Time td(off) - 55 ­Fall Time tf - 25 ­Total Gate Charge

(Gate-Source+Gate-Drain)

Qg

Gate-Source Charge Qgs - 3 ­Gate-Drain (Miller) Charge Qgd - 12 -

VGS=0V, ID=50µA 650 - - V
VDS=Max. Rating, VGS=0V - - 50 µA

=0.8Max. Rating,

V

DS

V

=0V, TC=125°C

GS

- - 200 µA

VGS=10V, ID=0.5A - 5.0 6.0 Ω

- 550 -

=0V, VDS=25V,

V

GS

f=1MHz

V

DD

=0.5B V

DSS

, ID=1.0A

-20-

(MOSFET switching time is
essentially independent of
operating temperature)

V

=10V, ID=1.0A,

GS

V

DS

=0.5B V

(MOSFET

DSS

--35

switching time is essentially
independent of operating
temperature)

pFOutput Capacitance Coss - 38 -

nS

nC

KA5x0280R

Drain-Source Breakdown Voltage BV

DSS

VGS=0V, ID=50µA 800 - - V
VDS=Max. Rating, VGS=0V - - 50 µA

Zero Gate Voltage Drain Current I

Static Drain-Source on Resistance
Forward Transconductance

(Note)

(Note)

Input Capacitance Ciss

DSS

R

DS(ON)VGS

=0.8Max. Rating,

V

DS

V

=0V, TC=125°C

GS

- - 200 µA

=10V, ID=0.5A - 5.6 7.0

gfs VDS=50V, ID=0.5A 1.5 2.5 - S

- 250 -

=0V, VDS=25V,

V

GS

f=1MHz

Reverse Transfer Capacitance Crss - 25 ­Turn on Delay Time td(on)
Rise Time tr - 28 ­Turn Off Delay Time td(off) - 77 ­Fall Time tf - 24 ­Total Gate Charge

(Gate-Source+Gate-Drain)

Qg

Gate-Source Charge Qgs - 15 ­Gate-Drain (Miller) Charge Qgd - 20 -

Note:

1. Pulse test: Pulse width ≤ 300µS, duty cycle ≤ 2%

2.

1

S

--- -=

R

V

=0.5B V

DD

DSS

, ID=1.0A
(MOSFET switching time is
essentially independent of
operating temperature)

V

=10V, ID=1.0A,

GS

V

=0.5B V

DS

(MOSFET

DSS

switching time is essentially
independent of operating
temperature)

-21-

--60

Ω

pFOutput Capacitance Coss - 52 -

nS

nC

3

KA5X02XX-SERIES

Electrical Characteristics (Control Part)

(Continued)

(Ta=25°C unless otherwise specified)

Parameter Symbol Condition Min. Typ. Max. Unit
UVLO SECTION

Start Threshold Voltage V
Stop Threshold Voltage V

START

STOP

VFB=GND 14 15 16 V
VFB=GND 8.2 8.8 9.4 V

OSCILLATOR SECTION

Initial Accuracy F

Initial Accuracy F
Initial Accuracy F

Frequency Change With Temperature

(2)

OSC

OSC
OSC

∆F/∆T-25°C ≤ Ta ≤ +85°C-±5 ±10 %

Maximum Duty Cycle Dmax

KA5H0265xRx
KA5H0280R

KA5M0265xRx
KA5M0280R

90 100 110 kHz

61 67 73 kHz

KA5L0265R 45 50 55 kHz

KA5H0265xRx
KA5H0280R

62 67 72 %

KA5M0265xRx

Maximum Duty Cycle Dmax

KA5M0280R

72 77 82 %

KA5L0265R

FEEDBACK SECTION

Feedback Source Current I
Shutdown Feedback Voltage V

FB

SD

Shutdown Delay Current Idelay Ta=25°C, 5V ≤ Vfb ≤ V

Ta=25°C, 0V ≤ Vfb ≤ 3V 0.7 0.9 1.1 mA
Vfb ≤ 6.5V 6.9 7.5 8.1 V

456µA

SD

SOFT START SECTION

Soft Start Voltage V
Soft Start Current I

SS

SS

KA5H0265RC

4.7 5.0 5.3 V

0.8 1.0 1.2 mA

REFERENCE SECTION

Output Voltage

(1)

Temperature Stability

(1)(2)

Vref Ta=25°C 4.80 5.00 5.20 V

Vref/∆T-25°C ≤ Ta ≤ +85°C-0.30.6mV/°C

CURRENT LIMIT(SELF-PROTECTION)SECTION

Peak Current Limit I
Peak Current Limit I

OVER

OVER

KA5x02659RN 0.79 0.9 1.01 A
KA5x0265Rx

KA5x0280R

1.05 1.2 1.34 A

PROTECTION SECTION

Over Voltage Protection V
Thermal Shutdown Temperature

(1)

OVP

T

SD

VCC ≥ 24V 25 27 29 V

- 140 160 - °C

TOTAL DEVICE SECTION

Start-up Current I
Operating Supply Current

(Control Part Only)

START

I

OPR

VCC=14V - 100 170 µA
V

≤ 28 - 7 12 mA

CC

Note:

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

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

4

Typical Performance Characteristics

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

KA5X02XX-SERIES

Fig.1 Operating Fre quen c y

1.2

1.15

1.1

1.05

Fosc

1

0.95

0.9

0.85

0.8

-25 0 25 50 75 100 125 150

Temperature [°C]

Figure 1. Operating Frequency

Fig.3 Operating Current

1.2

1.15

1.1

1.05

Iop

1

0.95

0.9

0.85

0.8

-25 0 25 50 75 100 125 150

Temperature [°C] Temperature [°C]

1.15

1.05

Ifb

0.95

0.85

Fig.2 Feedbac k Source Curr en t

1.2

1.1

1

0.9

0.8

-25 0 25 50 75 100 125 150

Temperature [°C]

Figure 2. Feedback Source Current

Fig.4 Max Inductor Cur r ent

1

-25 0 25 50 75 100 125 150

Ipeak

I

over

1.1

1.05

0.95

0.9

0.85

0.8

Figure 3. Operating Supply Current

Fig. 5 S t ar t up Current

-25 0 25 50 75 100 125 150

Istart

1.5

1.3

1.1

0.9

0.7

0.5

Temperature [°C] Temperature [°C]

Figure 5. Start up Current

Figure 4. Peak Current Limit

Fig.6 Star t Threshold Voltage

1.15

1.1

1.05

Vstart

1

0.95

0.9

0.85

-25 0 25 50 75 100 125 150

Figure 6. Start Threshold Voltage

5

KA5X02XX-SERIES

Typical Performance Characteristics

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

Fig.7 Stop Threshold Voltage

1.15

1.1

1.05

Vstop

1

0.95

0.9

0.85

-25 0 25 50 75 100 125 150

Temperature [°C] Temperature [°C]

Figure 7. Stop Threshold Voltage

1.2

1.15

1.1

1.05

Vz

0.95

0.9

0.85

0.8

Fig.9 Vc c Zener Voltage

1

-25 0 25 50 75 100 1 25 150

Temperature [°C] Temperature [°C]

(Continued)

Dmax

Vsd

Fig.8 Maximum Duty Cycle

1.15

1.1

1.05
1

0.95

0.9

0.85

-25 0 25 50 75 100 125 1 50

Figure 8. Maximum Duty Cycle

Fig.10 Shutdown Feedback Voltage

1.15

1.1

1.05
1

0.95

0.9

0.85

-25 0 25 50 75 100 12 5 150

Figure 9. V

Zener Voltage

CC

Fig.11 Shut down Delay Curr ent

1.2

1.15

1.1

1.05

Idelay

1

0.95

0.9

0.85

0.8

-25 0 25 50 75 100 125 150

Temperature [°C] Temperature [°C]

Figure 11. Shutdown Delay Current

Figure 10. Shutdown Feedback Voltage

Fig.12 Over V oltage Prot ec tion

1.15

1.1

1.05

Vovp

1

0.95

0.9

0.85

-25 0 25 50 75 100 125 150

Figure 12. Over Voltage Protection

6

KA5X02XX-SERIES

Typical Performance Characteristics

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

1.15

1.1

1.05

Vss

0.95

0.9

0.85

Fig.13 Soft Start Voltage

1

-25 0 25 50 75 100 125 150

Temperature [°C] Temperature [°C]

Figure13. Soft Start Voltage

(Continued)

Fig.14 Drain Source Tur n-on

Resi stance

2.5
2

1.5

Rdso n

)

(

1

0.5
0

-25 0 25 50 75 100 125 150

Figure 14. Static Drain -Source on Resistance

7

KA5X02XX-SERIES

Package Dimensions

TO-220F-4L

8

KA5X02XX-SERIES

Package Dimensions

(Continued)

TO-220F-4L(Forming)

9

KA5X02XX-SERIES

Package Dimensions

(Continued)

8-DIP

10

KA5X02XX-SERIES

Package Dimensions

(Continued)

TO-220-5L

11

KA5X02XX-SERIES

Package Dimensions

(Continued)

TO-220-5L(Forming)

12

Ordering Information

KA5X02XX-SERIES

Product Number Package Marking Code BV

KA5H0265RCTU TO-220-5L
KA5H0265RCYDTU TO-220-5L(Forming)

KA5M0265RTU TO-220F-4L
KA5M0265RYDTU TO-220F-4L(Forming)

KA5L0265RTU TO-220F-4L
KA5L0265RYDTU TO-220F-4L(Forming)

5H0265RC 650V 100kHz 5Ω

5M0265R 650V 67kHz 5Ω

5L0265R 650V 50kHz 5Ω

Product Number Package Marking Code BV

KA5H0280RTU TO-220F-4L
KA5H0280RYDTU TO-220F-4L(Forming)

KA5M0280RTU TO-220F-4L
KA5M0280RYDTU TO-220F-4L(Forming)

5H0280R 800V 100kHz 5.6Ω

5M0280R 800V 67kHz 5.6Ω

Product Number Package Marking Code BV

DSS

DSS

DSS

F

F

F

OSC

OSC

OSC

R

R

R

KA5H02659RN 8-DIP 5H02659R 650V 100kHz 5Ω
KA5M02659RN 8-DIP 5M02659R 650V 67kHz 5Ω

TU : Non Forming Type
YDTU : Forming Type

DS(on)

DS(on)

DS(on)

13

KA5X02XX-SERIES

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHA NGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREI N TO IMPROVE RELIABILITY, FUNCTIO N OR DESIGN. FAIRCH ILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER
DOES IT CONVEY ANY LICENSE UNDER IT S PATENT RIGHTS, NOR THE RIGHTS OF OTHE RS.

LIFE SUPPORT POL I CY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
CORPORATION. As used herein:

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

2. A critical component in any component of a life support
device or sy stem whose failure to perform can be
reasonably expec ted to cause the failur e of the life support
device or system, or to affect its safety or effec t iv ene ss .

instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.

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8/25/03 0.0m 001

 2003 Fairchild Semiconductor Corporation

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