CS5323

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7

PACKAGE PIN DESCRIPTION

PACKAGE PIN #

PIN SYMBOL

FUNCTION

20 Lead SO Wide

1

A resistor from this pin to ground sets operating frequency

2

COMP

Output of the error amplifier and input for the PWM

comparators.

3

Voltage Feedback Pin. To use Adaptive Positioning, set the

4

Current sense output for adaptive voltage positioning (AVP).

The level of this pin above the DAC voltage is proportional to

set AVP or leave this pin open for no AVP.

5−7

CS1−CS3

Current sense inputs. Connect current sense network for the

corresponding phase to each CSx pin.

8

Reference for Current Sense Amplifiers. To balance input

offset voltages between the inverting and noninverting inputs

of the Current Sense Amplifiers, connect a resistor between

the value of the resistors connected to the CSx pins.

9

Sets the threshold for hiccup mode current limit. Connect to

reference through a resistive divider.

10

REF

Reference output. Decouple with 0.1 μF.

11−15

VID0−VID4

Voltage ID DAC inputs. These pins are internally pulled up to

3.3 V if left open.

16

Gnd

IC Gnd.

17−19

GATE1−3

GATE drive signal.

20

Power for IC.