Datasheet > A6262

A6262

更新时间： 2024-11-05 12:24:03

品牌	Logo	应用领域
急速微 - ALLEGRO		调节器二极管驱动
页数	文件大小	规格书
15页	359K
描述
The A6262 is a linear, programmable current regulator providing up to 100 mA from each of four outputs to drive arrays of high brightness LEDs.

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A6262 数据手册

A6262

Automotive LED Array Driver

Features and Benefits

Description

▪ Total LED drive current up to 400 mA

▪ Current shared equally up to 100 mA by up to 4 strings

▪ 6 to 50 V supply

TheA6262isalinear,programmablecurrentregulatorproviding

up to 100 mAfrom each of four outputs to drive arrays of high

brightnessLEDs.TheregulatedLEDcurrentfromeachoutput,

accurate to 5%, is set by a single reference resistor. Current

matching in each string is better than 10% without the use of

ballast resistors. Driving LEDs with constant current ensures

safe operation with maximum possible light output.

▪ Low dropout voltage

▪ LED output short-to-ground and thermal protection

▪ On/off toggle switch input

▪ Enable input for PWM control

▪ Current slew rate limit during PWM

▪ Current set by reference resistor

▪ Automotive K-temperature range (–40°C to 150°C)

Output control is provided by an enable input, giving direct

control for PWM applications, and by a debounced switch

input, proving an on/off toggle action.

Optimumperformanceisachievedwhendriving4stringswith

1 to 3 LEDs in each string, at a total current of up to 100 mA

in each string. Outputs can be connected in parallel or left

unused as required.

Applications:

▪ Dome light, map light, space lighting,

mood lighting

Short detection is provided to protect the LEDs and theA6262

during a short-to-ground at any LED output pin. The output

will automatically resume the regulated current when the short

is removed.

Packages

10-pin MSOP with

exposed thermal pad

(suffix LY)

A temperature monitor is included to reduce the LED drive

current if the chip temperature exceeds an adjustable thermal

threshold.

16-pin TSSOP with

exposed thermal pad

(suffix LP)

The device packages are a 10-pin MSOP (LY) and a 16-pin

TSSOP (LP), both with exposed pad for enhanced thermal

dissipation. They are lead (Pb) free, with 100% matte tin

leadframe plating.

Not to scale

Typical Application Diagram

Automotive

12 V power net

VIN

A6262

PWM dimming

input from LCU

LA1

LA2

LA3

LA4

IREF

On/Off

THTH

GND

–

A6262-DS, Rev. 4

12 3 4 5 6 7...15

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与A6262相关器件

型号	品牌	获取价格	描述	数据表
A6262KLPTR-T	ALLEGRO	获取价格	The A6262 is a linear, programmable current regulator providing up to 100 mA from each of
A6262KLYTR-T	ALLEGRO	获取价格	The A6262 is a linear, programmable current regulator providing up to 100 mA from each of
A6263	ALLEGRO	获取价格	Protected LED Array Driver
A6264	ALLEGRO	获取价格	The A6264 is a linear, programmable current regulator providing up to 100 mA from each of
A6264KLPTR-T	ALLEGRO	获取价格	The A6264 is a linear, programmable current regulator providing up to 100 mA from each of
A6264KLYTR-T	ALLEGRO	获取价格	The A6264 is a linear, programmable current regulator providing up to 100 mA from each of
A6265	ALLEGRO	获取价格	The A6265 is a DC-to-DC converter controller, providing a programmable constant current ou
A6265KLP-T	ALLEGRO	获取价格	LED Driver, PDSO16, LEAD FREE, TSSOP-16
A6265KLPTR-T	ALLEGRO	获取价格	The A6265 is a DC-to-DC converter controller, providing a programmable constant current ou
A6266	ALLEGRO	获取价格	The A6266 is a boost converter controller, providing a programmable constant current outpu

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