Datasheet > AHK3293IGU-T1

AHK3293IGU-T1

更新时间： 2024-11-01 21:20:11

品牌	Logo	应用领域
ANALOGICTECH		/
页数	文件大小	规格书
13页	1241K
描述
Interface Circuit

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数据手册

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AHK3293IGU-T1 数据手册

PRODUCT DATASHEET

AHK3293

PowerLinear

3 Channel 1x LED Driver

General Description

Features

•

The AHK3293 is a linear current-sink LED driver, capable

of driving one, two or three LEDs up to 30.2mA each.

Featuring individual low resistance, low drop-out voltage

current sinks, the AHK3293 allows the LEDs to be regu-

lated directly from a Lithium Ion/Polymer battery with-

out the need for an additional step-up power supply,

thereby reducing the external component count, elimi-

nating switching noise and maximizing efficiency.

2.7V to 5.5V Input Supply Range

Drives up to 3 LEDs at up to 30.2mA each

Low-Dropout, Low Resistance Current Sinks

Typically 40.5mV at Full Scale

▪

•

Linear LED Output Current Control

S²Cwire Interface

▪

•

Single-wire

32 Steps

•

±10% LED Output Current Accuracy

±3% LED Output Current Matching

Low Current Shutdown Mode

AnalogicTech’s Simple Serial Control™ (S²Cwire™) inter-

face is used to enable, disable, and set the LED drive

current for 32-level linear scale LED brightness control.

To minimize the use of external components the LED cur-

rent is set internally to a maximum of 30.2mA.

Low-cost 6-pin SOT23 Package

Applications

The AHK3293 is packaged in a Pb-free 6-pin SOT23

package and operates over the -40 to +85^OC tempera-

ture range.

•

Entry Level Mobile Phones

•

Indicator LEDs

Keyboard Backlight

MP3 Players

Typical Application

Input Voltage

2.7 to 5.5V

C_IN

AHK3293

EN/SET

S²Cwire

Interface

GND

w w w . a n a l o g i c t e c h . c o m

3293.2009.12.1.0

12 3 4 5 6 7...13

中文翻译

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