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AAT3113ITP-20-T1

更新时间： 2024-11-20 22:05:11

品牌	Logo	应用领域
ANALOGICTECH		显示驱动器驱动程序和接口光电二极管泵
页数	文件大小	规格书
14页	233K
描述
High Efficiency 1.5X Fractional Charge Pumps For White LED Applications

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中文翻译

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AAT3113ITP-20-T1 数据手册

AAT3113/4

High Efficiency 1.5X Fractional Charge

Pumps For White LED Applications

™

ChargePump

General Description

Features

The AAT3113/4 are low noise, constant frequency

charge pump DC/DC converters that use fractional

(1.5X) conversion to increase efficiency in White

LED applications. The devices can be used to pro-

duce current levels up to 20mA for each output from

a 2.7V to 5.5V input. Low external parts counts (two

1µF flying capacitors and two small bypass capaci-

tors at V_IN, and OUT) make the AAT3113/4 ideally

suited for small battery-power applications.

•

White LED Backlighting

AAT3113 - 4 Outputs

AAT3114 - 6 Outputs

20mA Full Scale Current

32 Position Logarithmic Scale with Digital

Control

•

Simple Serial Control™ (S Cwire™) interface

Low Noise Constant Frequency Operation

33% Less Input Current Than Doubler

Charge Pump

AnalogicTech™’s Simple Serial Control™

•

High Accuracy Brightness Matching

Small Application Circuit

(S Cwire™) interface is used to enable, disable

and set the LED drive current for a 32 level loga-

rithmic scale LED brightness control. The

AAT3113/4 have a thermal management system to

protect the device in the event of a short circuit

condition on any of the output pins. Built-in soft-

start circuitry prevents excessive inrush current

during start-up. High switching frequency enables

the use of small external capacitors. A low current

shutdown feature disconnects the load from V_IN

and reduces quiescent current to less than 1µA.

The AAT3113 provides 4 LED current source out-

puts, and the AAT3114 provides 6. The AAT3113/4

are available in 16-pin quad QFN packages, and

the AAT3113 is also available in the 12-pin

TSOPJW package.

Regulated Output Current

Automatic Soft-Start

VIN Range: 2.7V to 5.5V

No Inductors

600kHz Switching Frequency

Iq < 1µA in Shutdown

Temperature Range -40 to 85°C.

16-Pin QFN, 12-Pin TSOPJW Package

Applications

•

White LED Backlighting

Programmable Current Source

Typical Application

V_IN

C1+

1µF

C1-

C2+

V_OUT

C_IN

1µF

C_OUT

1µF

V_BATTERY

AAT3114

C2-

EN/SET

GND

3113.2004.07.1.4

12 3 4 5 6 7...14

中文翻译

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与AAT3113ITP-20-T1相关器件

型号	品牌	获取价格	描述	数据表
AAT3114	AAT	获取价格	High Efficiency 1.5X Fractional Charge Pumps For White LED Applications
AAT3114	ANALOGICTECH	获取价格	High Efficiency 1.5X Fractional Charge Pumps For White LED Applications
AAT3114A	AAT	获取价格	High Efficiency 1.5X Fractional Charge Pumps For White LED Applications
AAT3114A	ANALOGICTECH	获取价格	High Efficiency 1.5X Fractional Charge Pumps For White LED Applications
AAT3114AISN	ANALOGICTECH	获取价格	High Efficiency 1.5X Fractional Charge Pumps For White LED Applications
AAT3114AISN-20-T1	ANALOGICTECH	获取价格	High Efficiency 1.5X Fractional Charge Pumps For White LED Applications
AAT3114AISN-20-T1	AAT	获取价格	High Efficiency 1.5X Fractional Charge Pumps For White LED Applications
AAT3114ISN	ANALOGICTECH	获取价格	High Efficiency 1.5X Fractional Charge Pumps For White LED Applications
AAT3114ISN-20-T1	ANALOGICTECH	获取价格	High Efficiency 1.5X Fractional Charge Pumps For White LED Applications
AAT3114ISN-20-T1	AAT	获取价格	High Efficiency 1.5X Fractional Charge Pumps For White LED Applications

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