ACT6330

Rev0, 02-Apr-08

Innovative Power

TM

- 4 -

www.active-semi.com

Copyright © 2008 Active-Semi, Inc.

ActivePMU

PIN DESCRIPTIONS

PIN

NAME

DESCRIPTION

1, 2, 3,

14, 15, 16

GA

Analog Ground. Connect GAs directly to a quiet ground node. Connect GAs and GP12 to-

gether at a single point as close to the IC as possible.

4

FB1

Feedback Sense for REG1. Connect this pin to the LED string current sense resistor to sense

the LED current.

5

OVP1

Over-Voltage Protection Input for REG1. Connect this pin directly to the output node to sense

and prevent over-voltage conditions.

6

SW1

Switching Node Output for REG1. Connect this pin to the switching end of the inductor.

7

GP12

Power Ground for REG1, REG2. Connect GP12 directly to a power ground plane. Connect

GAs and GP12 together at a single point as close to the IC as possible.

8

SW2

Switching Node Output for REG2. Connect this pin to the switching end of the inductor.

9

OVP2

Over-Voltage Protection Input for REG2. Connect this pin directly to the output node to sense

and prevent over-voltage conditions.

10

FB2

Feedback Sense for REG2. Connect this pin to the center point of a resistive voltage divider

to sense output voltage.

11

ON2

Enable Control Input for REG2. Drive ON2 to IN or to a logic high for normal operation, drive

to GA or a logic low to disable REG2.

12

ON1

Enable Control Input for REG1. Drive ON1 to IN or to a logic high for normal operation, drive

to GA or a logic low to disable REG1.

13

IN

Power Input for the IC. Bypass IN to GA with a capacitor placed as close as possible to the IC.

EP

EP

Exposed Pad. Must be soldered to ground on the PCB.