CAT3606 datasheet(7/28 Pages) CATALYST

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CAT4237

High Voltage CMOS Boost White LED Driver

CAT310

Automotive 10-Channel Serial Latched LED Driver

w h i t e l e d d r i v e r s

Features

■

drives 8 white LEDs in series from 3V

■

low quiescent ground current 0.3mA

■

power efﬁciency over 84%

■

adjustable output current (up to 40mA)

■

high-frequency 1MHz operation

■

high voltage power switch

■

shutdown current less than 1 µA

■

load fault protection against open-circuits

■

tight line/load regulation

Package Information

■

thin SOT23 5-lead (1mm max height)

Featured Products

CAT4237

VIN

SHDN

VFB = 300mV

20mA

GND

3V to 4.2V

VIN

White

LEDs

VOUT

Features

■

output drivers withstand load-dump transients up to 40V

■

operates over automotive temperature range:-40 to +125°C

■

drives 10 LEDs in parallel at 50mA per channel

■

output channels can drive a combination of white or color LEDs

■

serial output allows cascading of multiple CAT310’s to drive

greater than 10 LEDs

■

operating voltage up to 17V

■

simple LED pattern programming through the 10 MHz serial

interface

■

blank pin provides global on/off control of all LEDs

■

under Voltage Lockout

■

over Voltage Protection

Package Information

■

20-lead SOIC

CAT310

VBATT

VCC

SCLK

XLAT

BLANK

SIN

OUT0

OUT1

OUT2

OUT9

SOUT

VCC

GND

PGND

VBATTERY = 14V (typical)

VBATT

Controller

30mA

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