ISL97645

FN9263 Rev 1.00

Page 2 of 14

December 14, 2007

Pin Descriptions

PIN NUMBER

PIN NAME

FUNCTION

1

GND

Ground

2

VGH_M

Gate Pulse Modulation Output

3

VFLK

Gate Pulse Modulation Control Input

4

VDPM

Gate Pulse Modulation Enable

5

VDD_1

Gate Pulse Modulation Lower Voltage Input

6VDD_2

VCOM Amplifier Supply

7OUT

VCOM Amplifier Output

8NEG

VCOM Amplifier Inverting Input

9POS

VCOM Amplifier Noninverting Input

10

AGND

VCOM Amplifier Ground

11

NC

12

NC

13

NC

14

SS

Boost Converter Soft-start. Connect a capacitor between this pin and GND to set the soft-start

time.

15

COMP

Boost Converter Compensation Pin. Connect a series resistor and capacitor between this pin and

GND to optimize transient response.

16

FREQ

Boost Converter Frequency Select.

17

VIN

Boost Converter Power Supply

18

LX

Boost Converter Switching Node

19

ENABLE

Chip Enable Pin. Connect to Vin for normal operation, GND for shutdown.

20

FB

Boost Converter Feedback

21

PGND

Boost Converter Power Ground

22

CE

Gate Pulse Modulator Delay Control. Connect a capacitor between this pin and GND to set the

delay time.

23

RE

Gate Pulse Modulator Slew Control. Connect a resistor between this pin and GND to set the falling

slew rate.

24

VGH

Gate Pulse Modulator High Voltage Input