BD9853AFV

Technical Note

6/16

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2009.05 - Rev.A

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Pin Configuration

Fig. 10

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Pin Description

Pin Number

Pin Name

Pin Descriptions

1

VCC

Input Supply Voltage

2

OUT1H

High Side (Main) FET Driver Output Pin (CH1)

3

OUT1L

Low Side (Synchronous) FET Driver Output Pin (CH1)

4

REGA

Internal Regulator Output Pin (5V Output, 1uF Ceramic Capacitor necessary)

5

RT

Oscillator Frequency Adjustment Pin with external Resistor

6

FB1

Error Amplifier Output Pin (CH1)

7

INV1

Error Amplifer Negative Input Pin (CH1)

8

SCP/SOFT1

Short Circuit Protection・Soft Start Delay Time Setting Pin with External Capacitor (CH1)

9

SCP/SOFT2

Short Circuit Protection・Soft Start Delay Time Setting Pin with External Capacitor (CH2)

10

INV2

Error Amplifer Negative Input Pin (CH2)

11

FB2

Error Amplifier Output Pin (CH2)

12

GND

Ground Pin

13

STB

ON/OFF Control Pin

14

OUT2L

Low Side (Synchronous) FET Driver Output Pin (CH2)

15

OUT2H

High Side (Main) FET Driver Output Pin (CH2)

16

REGB

Internal Regulator Output Pin (VCC-5V Output, 1uF Ceramic Capacitor necessary)