ISL97632_07 datasheet(3/9 Pages) INTERSIL

부품명	ISL97632

상세설명	White LED Driver with Digital Dimming

PDF	9 Pages

Scroll/Zoom	100%

제조업체	INTERSIL [Intersil Corporation]

홈페이지	http://www.intersil.com/cda/home

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3 / 9 page

FN9239.2

April 10, 2007

Block Diagram

Pin Descriptions

PWM LOGIC

CONTROLLER

AMPLIFIER

10 - 186mV

PWM

COMPARATOR

VIN

GND

RSET

COUT

VIN (2.4V to 5.5V)

2 to 6 LEDs

CIN

ISL97632

VOUT

SERIAL

INTERFACE

BANDGAP

REFERENCE

GENERATOR

SDIN

FBSW

FET

DRIVER

GM AMP

COMPENSATION

CURRENT

SENSE

1.4MHZ OSCILLATOR AND RAMP

GENERATOR

NUMBER

NAME

DESCRIPTION

GND

Ground Pin. Connect to local ground.

VIN

Input Supply Pin. Connect to the input supply voltage, the inductor and the input supply decoupling

capacitor.

Enable Pin. Connect to enable signal to turn-on or off the device. Active High.

SDIN

Single-Wire XSD Digital Interface.

Feedback Pin. Connect to the cathode of bottom LED and the sense resistor.

FBSW

Optional FB Disconnect Switch.

VOUT

Output Pin. Connect to the anode of the top LED and the output filter capacitor.

Switching Pin. Connect to inductor.

ISL97632

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