ISL6622A 查看數據表（PDF） - Intersil

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ISL6622A

4-Phase PWM Controller with Light Load Efficiency Enhancement and Load Current Monitoring

Intersil 

ISL6334B, ISL6334C

ISL6334B and ISL6334C Block Diagram

VDIFF VR_RDY FS PSI#

RGND

VSEN

-

X1

+

CLOCK AND

RAMP GENERATOR

N

POWER-ON

RESET (POR)

+

OVP

-

SOFT-START

AND

FAULT LOGIC

- 0.875

+

EN_VTT

- 0.875

+

EN_PWR

+175mV

SS

APP and APA

MODULATOR

PWM1

VID7

VID6

VID5

VID4

VID3

VID2

VID1

VID0

DAC

DYNAMIC

VID

D/A

OFS

REF

FB

COMP

OFFSET

1.11V

+

OCP

-

IMON

1.11V

VR_HOT

TM

THERMAL

MONITOR

APP and APA

MODULATOR

PWM2

APP and APA

MODULATOR

PWM3

APP and APA

MODULATOR

PWM4

+

E/A

-

CHANNEL

CURRENT

BALANCE

AND PEAK

CURRENT LIMIT

CHANNEL

DETECT

N

+

OCP

-

I_TRIP

1

N

Σ

TEMPERATURE

COMPENSATION

CHANNEL

CURRENT

SENSE

TEMPERATURE

COMPENSATION

GAIN ADJUST

ISEN1+

ISEN1-

ISEN2+

ISEN2-

ISEN3+

ISEN3-

ISEN4+

ISEN4-

H_CPURST_N

TCOMP

GND

4

FN6689.2

August 31, 2010

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