ISL97676 查看數據表（PDF） - Renesas Electronics

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ISL97676

6-Channel LED Driver with Phase Shift Control

Renesas Electronics 

Block Diagram

VIN* = 4.5V~26V

VIN

EN

VDDIO

REG

4.75V BIAS

OPTIONAL PFET

10µH/3A

FAULT

FAULT

FET

DRV

ISL97676

O/P SHORT

FSW/

PHASESHIFT

COMP

OSC &

RAMP

COMP

FSW

DETECT

PHASE

SELECT

GM

AMP

 =0

IMAX

ILIMIT

LOGIC

FET

DRIVER

8-BIT

DAC

DYNAMIC

HEADROOM

CONTROL

FPO

HIGHEST VF

STRING

DETECT

ISET

GND

+

-

REF OVP

REF VSC

REF

GEN

VSET

+

-

+

-

PWM

FPWM/DIRECTPWM

PHASE

SELECT

8-BIT

DIGITIZER

PHASE

SHIFT &

PWM

CONTROLLER

DIRECTPWM

DETECT

45V*/30mA PER STRING

78 (6X13) LEDS

4.7µF/50V

SW

OVP

OVP

OPEN CKT, SHORT CKT

DETECTS

1

TEMP

SENSOR

SHUTDOWN

PGND

FB1

FB2

FB6

2

* VIN > = 6V

+

6

-

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