ISL6558CR View Datasheet(PDF) - Intersil

Part Name

Description

Manufacturer

ISL6558CR

Multi-Purpose Precision Multi-Phase PWM Controller With Optional Active Voltage Positioning

Intersil 

Block Diagram

ISL6558

PGOOD

VCC

VSEN

COMP

FB

DROOP

X 0.9

X1.15

-

UV

+

+

OV

-

POWER-ON

RESET (POR)

OV R

LATCH

S

+

∑

-

CLOCK AND

SAWTOOTH

GENERATOR

THREE-STATE

+

PWM

-

SOFT-

START

AND FAULT

LOGIC

+

∑

-

+

PWM

-

0.8V

REFERENCE

+

E/A

-

+

∑

-

+

∑

-

+

PWM

-

+

PWM

-

CURRENT

CORRECTION

PHASE

NUMBER

CHANNEL

DETECTOR

ITOTAL

+

OC

-

+

+

∑

+

+

ITRIP

FS/EN

PWM1

PWM2

PWM3

PWM4

ISEN1

ISEN2

ISEN3

ISEN4

GND

3

FN9027.12

June 21, 2005

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