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FA5301BP(N)

FA5301BP(N)

s

Description

The FA5301BP(N) is a bipolar IC containing basic circuits

necessary for PWM-type switching power supply control.

This IC switches an external transistor according to external

synchronizing pulses.

Bipolar IC

For Switching Power Supply Control

s

Dimensions, mm

SOP-16

16

9

3.9

鹵0.1

6.0

鹵0.2

0.18

鹵0.07

1

9.9

鹵0.1

8

0.33

1.65

鹵0.1

0.65

.0

0.3

鈥?

+0.1 5

s

Features

鈥?External synchronization input terminal

鈥?Wide supply voltage range (V

CC

=7 to 22V)

鈥?Open-collector output

鈥?Soft-start from standby mode

鈥?Double protection of output transistor by overcurrent limiting

and cutoff functions

鈥?Output ON/OFF control function

鈥?Not many external discrete components needed

0.42

鹵0.07

1.27

鹵0.2

DIP-16

16

9

s

Applications

鈥?Switching power supply for general equipment

(Optimum for TV, display, and other monitor devices)

1

0.81

19.4

1.5

8

3.1min 4.3max

0.2min

3.4

6.5

0~8藲

0.2

7.6

2.54

鹵0.25

0.5

鹵0.1

0~15

藲

0~1

5藲

s

Block diagram

Pin

No.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

Pin

symbol

Description

Inverting input to error amplifier

Non-inverting input to error

amplifier

Error amplifier output

Feedback input

Overcurrent detection

Overcurrent cutoff delay

capacitor

Ground

Output ON/OFF control

Output

Dead time adjustment

Oscillator timing capacitor

External synchronizing signal

detection capacitor

External synchronization input

PWM soft-start capacitor

Reference voltage output (5V)

Power supply

IN (鈥?

IN (+)

ER.OUT

FB

IS

CD

GND

ON/OFF

OUT

DT

CT

CSY

SYNC

CSO

REF

VCC

1

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