KA5H0280RTU应用文章市场行情现货热卖使用介绍供应商报价-中国IC网-芯三七

www.fairchildsemi.com

KA5x02xx-SERIES

KA5H0265RC, KA5M0265R, KA5L0265R,

KA5H02659RN/KA5M02659RN, KA5H0280R,

KA5M0280R

Fairchild Power Switch(FPS)

Features

Description

• 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

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 circuitry-

• Internal High Voltage Sense FET

• Auto-Restart Mode

compared to discrete MOSFET and controller or R

CC

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 platform well suited for cost-effective

design in either a flyback converter or a forward converter.

TO-220F-4L

8-DIP

TO220-5L

1

1.6.7.8. Drain

2. GND

3. Vcc

4. FB

5. NC

1. Drain

2. GND

3. Vcc

4. FB

1. GND

2. Drain

3. Vcc

4. FB

5. S/S

Internal Block Diagram

V

CC

DRAIN

32V

5V

Vref

Internal

bias

SFET

Good

logic

Soft Start

*

OSC

5V

S

R

uA

Q

−

FB

L.E.B

0.1V

2.5R

5µA

1mA

9V

+

1R

+

S

Q

R

GND

−

7.5V

27V

Thermal S/D

OVER VOLTAGE S/D

+

Power on reset

−

* KA5H0265RC

Rev.1.0.4

KA5X02XX-SERIES

Absolute Maximum Ratings

(Ta=25°C, unless otherwise specified)

Characteristic

KA5x0265xRx

Symbol

Value

Unit

Drain-Gate Voltage (R =1MΩ)

V

650

±30

V

GS

DGR

Gate-Source (GND) Voltage

Drain Current Pulsed ⁽¹⁾

V

GS

DM

I

8.0

A

DC

Continuous Drain Current (T =25°C)

I

2.0

A

C

D

DC

Continuous Drain Current (T =100°C)

1.3

A

C

D

Single Pulsed Avalanche Energy ⁽²⁾

E

68

mJ

V

AS

Maximum Supply Voltage

V

30

CC,MAX

Analog Input Voltage Range

V

-0.3 to V

42

V

FB

SD

P

W

D

Total Power Dissipation

Darting

0.33

+160

W/°C

°C

Operating Junction Temperature.

Operating Ambient Temperature.

Storage Temperature Range.

T

J

T

-25 to +85

A

T

STG

-55 to +150

KA5x0280R

Drain-Gate Voltage (R =1MΩ)

V

800

±30

8.0

2.0

1.3

90

V

GS

DGR

Gate-Source (GND) Voltage

Drain Current Pulsed ⁽¹⁾

V

GS

DM

I

A

DC

Continuous Drain Current (T =25°C)

I

A

DC

A

DC

C

D

Continuous Drain Current (T =100°C)

C

D

Single Pulsed Avalanche Energy ⁽²⁾

E

mJ

V

AS

Maximum Supply Voltage

V

30

CC,MAX

Analog Input Voltage Range

V

-0.3 to V

35

V

FB

SD

P

W

D

Total Power Dissipation

Darting

0.28

W/°C

°C

Operating Junction Temperature.

Operating Ambient Temperature.

Storage Temperature Range.

T

+160

J

T

-25 to +85

A

T

STG

-55 to +150

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

DSS

V

=0V, I =50µA

650

-

V

GS

DS

D

=Max. Rating, V =0V

GS

50

µA

Zero Gate Voltage Drain Current

I

DSS

V

=0.8Max. Rating,

DS

-

200

µA

=0V, T =125°C

GS

C

Static Drain-Source on Resistance ^(Note)

Forward Transconductance ^(Note)

Input Capacitance

R

V

=10V, I =0.5A

D

-

5.0

2.5

550

38

6.0

Ω

DS(ON)

gfs

GS

DS

=50V, I =0.5A

D

1.5

-

S

Ciss

-

V

=0V, V =25V,

DS

GS

Output Capacitance

Coss

Crss

pF

nS

f=1MHz

Reverse Transfer Capacitance

Turn on Delay Time

17

td(on)

tr

20

V

=0.5B V , I =1.0A

DSS D

DD

Rise Time

15

(MOSFET switching time is

essentially independent of

operating temperature)

Turn Off Delay Time

td(off)

tf

55

Fall Time

25

Total Gate Charge

(Gate-Source+Gate-Drain)

V

=10V, I =1.0A,

D

GS

DS

Qg

-

35

=0.5B V

(MOSFET

DSS

switching time is essentially

independent of operating

temperature)

nC

Gate-Source Charge

Qgs

Qgd

-

3

-

Gate-Drain (Miller) Charge

12

KA5x0280R

Drain-Source Breakdown Voltage

BV

DSS

V

=0V, I =50µA

800

-

V

GS

DS

D

=Max. Rating, V =0V

GS

50

µA

Zero Gate Voltage Drain Current

I

DSS

V

=0.8Max. Rating,

DS

-

200

µA

=0V, T =125°C

GS

C

Static Drain-Source on Resistance ^(Note)

Forward Transconductance ^(Note)

Input Capacitance

R

V

=10V, I =0.5A

D

-

5.6

2.5

250

52

7.0

Ω

DS(ON)

gfs

GS

DS

=50V, I =0.5A

D

1.5

-

S

Ciss

-

V

=0V, V =25V,

DS

GS

Output Capacitance

Coss

Crss

pF

nS

f=1MHz

Reverse Transfer Capacitance

Turn on Delay Time

25

td(on)

tr

21

V

=0.5B V , I =1.0A

DSS D

DD

Rise Time

28

(MOSFET switching time is

essentially independent of

operating temperature)

Turn Off Delay Time

td(off)

tf

77

Fall Time

24

Total Gate Charge

(Gate-Source+Gate-Drain)

V

=10V, I =1.0A,

D

=0.5B V (MOSFET

DSS

GS

DS

Qg

-

60

switching time is essentially

independent of operating

temperature)

nC

Gate-Source Charge

Qgs

Qgd

-

15

20

-

Gate-Drain (Miller) Charge

Note:

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

1

R

2.

S = ---

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

Stop Threshold Voltage

OSCILLATOR SECTION

V

=GND

14

15

16

V

START

FB

V

=GND

8.2

8.8

9.4

STOP

FB

KA5H0265xRx

KA5H0280R

Initial Accuracy

F

90

61

100

67

110

73

kHz

OSC

KA5M0265xRx

KA5M0280R

F

OSC

Initial Accuracy

Frequency Change With Temperature ⁽²⁾

F

KA5L0265R

45

-

50

55

kHz

%

∆F/∆T

-25°C ≤ Ta ≤ +85°C

±5

±10

KA5H0265xRx

KA5H0280R

Maximum Duty Cycle

Dmax

62

67

72

%

KA5M0265xRx

KA5M0280R

KA5L0265R

Maximum Duty Cycle

Dmax

72

77

82

%

FEEDBACK SECTION

Feedback Source Current

Shutdown Feedback Voltage

Shutdown Delay Current

SOFT START SECTION

Soft Start Voltage

I

Ta=25°C, 0V ≤ Vfb ≤ 3V

Vfb ≤ 6.5V

0.7

6.9

4

0.9

7.5

5

1.1

8.1

6

mA

V

FB

V

SD

Idelay

Ta=25°C, 5V ≤ Vfb ≤ V

µA

SD

V

4.7

0.8

5.0

1.0

5.3

1.2

V

SS

KA5H0265RC

Soft Start Current

I

mA

SS

REFERENCE SECTION

Output Voltage ⁽¹⁾

Temperature Stability ⁽¹⁾⁽²⁾

Vref

Ta=25°C

4.80

-

5.00

0.3

5.20

0.6

V

Vref/∆T

-25°C ≤ Ta ≤ +85°C

mV/°C

CURRENT LIMIT(SELF-PROTECTION)SECTION

Peak Current Limit

I

OVER

KA5x02659RN

0.79

1.05

0.9

1.2

1.01

1.34

A

KA5x0265Rx

KA5x0280R

Peak Current Limit

I

OVER

PROTECTION SECTION

Over Voltage Protection

Thermal Shutdown Temperature ⁽¹⁾

TOTAL DEVICE SECTION

Start-up Current

V

≥ 24V

25

27

29

-

V

OVP

CC

T

-

140

160

°C

SD

I

V

=14V

-

100

7

170

12

µA

START

CC

Operating Supply Current

(Control Part Only)

I

≤ 28

mA

OPR

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

KA5X02XX-SERIES

Typical Performance Characteristics

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

Fig.2 Feedback Source Current

Fig.1 Operating Frequency

1.2

1.15

1.1

1.2

1.15

1.1

1.05

Ifb

1

0.95

0.9

Fosc

1

0.95

0.9

0.85

0.8

0.85

0.8

-25

0

25

50

75 100 125 150

- 25

0

25

50 75 100 125 150

Temperature [°C]

Figure 2. Feedback Source Current

Figure 1. Operating Frequency

Fig.3 Operating Current

Fig.4 Max Inductor Current

1.1

1.2

1.15

1.1

1.05

I

Ipeak

1

over

1.05

Iop

0.95

0.9

1

0.95

0.9

0.85

0.8

0.85

0.8

-25

0

25 50

75 100 125 150

-25

0

25 50 75 100 125 150

Temperature [°C]

Figure 4. Peak Current Limit

Figure 3. Operating Supply Current

Fig.5 Start up Current

1.5

Fig.6 Start Threshold Voltage

1.15

1.1

1.3

1.1

1.05

Istart

Vs tart

1

0.95

0.9

0.7

0.5

0.85

-25

0

25 50 75 100 125 150

-25

0

25 50 75 100 125 150

Temperature [°C]

Figure 6. Start Threshold Voltage

Figure 5. Start up Current

5

KA5X02XX-SERIES

Typical Performance Characteristics (Continued)

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

Fig.7 Stop Threshold Voltage

1.15

Fig.8 Maximum DutyCycle

1.15

1.1

1.05

Vs top

1

Dmax

1

0.95

0.9

0.95

0.9

0.85

-25

0

25 50 75 100 125 150

-25

0

25 50 75 100 125 150

Temperature [°C]

Figure 8. Maximum Duty Cycle

Figure 7. Stop Threshold Voltage

Fig.9 Vcc Zener Voltage

Fig.10 Shutdown Feedback Voltage

1.2

1.15

1.1

1.05

1

0.95

0.9

1.1

1.05

Vz

Vsd

1

0.95

0.9

0.85

0.8

0.85

-25

0

25

50

75 100 125 150

-25

0

25

50

75 100 125 150

Temperature [°C]

Figure 10. Shutdown Feedback Voltage

Figure 9. V

CC

Zener Voltage

Fig.11 Shutdown Delay Current

Fig.12 Over Voltage Protection

1.15

1.2

1.15

1.1

1.05

1.1

1.05

Idelay

1

Vovp

1

0.95

0.9

0.95

0.9

0.85

0.8

0.85

-25

0

25 50

Temperature [°C]

75 100 125 150

-25

0

25 50 75 100 125 150

Temperature [°C]

Figure 12. Over Voltage Protection

Figure 11. Shutdown Delay Current

6

KA5X02XX-SERIES

Typical Performance Characteristics (Continued)

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

Fig.13 Soft Start Voltage

1.15

Fig.14 Drain Source Turn-on

Resistance

2.5

2

1.1

1.05

1.5

Vs s

1

Rdson

)

(

0.95

0.9

1

0.5

0

0.85

-25

0

25

50

75 100 125 150

-25

0

25 50 75 100 125 150

Temperature [°C]

Figure 14. Static Drain-Source on Resistance

Figure13. Soft Start Voltage

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

KA5X02XX-SERIES

Ordering Information

Product Number

Package

TO-220-5L

Marking Code

BV

F

R

DS(on)

DSS

OSC

KA5H0265RCTU

5H0265RC

650V

100kHz

67kHz

50kHz

5Ω

KA5H0265RCYDTU TO-220-5L(Forming)

KA5M0265RTU

TO-220F-4L

5M0265R

5L0265R

650V

5Ω

KA5M0265RYDTU

TO-220F-4L(Forming)

KA5L0265RTU

TO-220F-4L

KA5L0265RYDTU

TO-220F-4L(Forming)

Product Number

KA5H0280RTU

Package

TO-220F-4L

Marking Code

BV

F

R

DS(on)

DSS

OSC

5H0280R

800V

100kHz

67kHz

5.6Ω

KA5H0280RYDTU

TO-220F-4L(Forming)

KA5M0280RTU

TO-220F-4L

5M0280R

5.6Ω

KA5M0280RYDTU

TO-220F-4L(Forming)

Product Number

Package

Marking Code

BV

F

R

DS(on)

DSS

650V

OSC

KA5H02659RN

8-DIP

5H02659R

100kHz

67kHz

5Ω

KA5M02659RN

8-DIP

5M02659R

5Ω

TU : Non Forming Type

YDTU : Forming Type

13

KA5X02XX-SERIES

DISCLAIMER

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 APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER

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

LIFE SUPPORT POLICY

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

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 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.

www.fairchildsemi.com

8/25/03 0.0m 001

Stock#DSxxxxxxxx

2003 Fairchild Semiconductor Corporation

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