CS5323 datasheet(7/16 Pages) ONSEMI

No. de pieza	CS5323

Descripción Electrónicos	Three?뭁hase Buck Controller with 5?묪it DAC

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Fabricante Electrónico	ONSEMI [ON Semiconductor]

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CS5323

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PACKAGE PIN DESCRIPTION

PACKAGE PIN #

PIN SYMBOL

FUNCTION

20 Lead SO Wide

1

ROSC

A resistor from this pin to ground sets operating frequency

and VFB bias current.

2

COMP

Output of the error amplifier and input for the PWM

comparators.

3

VFB

Voltage Feedback Pin. To use Adaptive Positioning, set the

light load offset voltage by connecting a resistor between VFB

and CSREF. The resistor and the VFB bias current determine

the offset. For no adaptive positioning connect VFB directly to

CSREF.

4

VDRP

Current sense output for adaptive voltage positioning (AVP).

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

the output current. Connect a resistor from this pin to VFB 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

CSREF

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

CSREF and the output voltage. The value should be 1/3 of

the value of the resistors connected to the CSx pins.

9

ILIM

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

VCC

Power for IC.

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CS5323 Datasheet(PDF) 7 Page - ON Semiconductor

CS5323 Datasheet(HTML) 7 Page - ON Semiconductor

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