Datasheet > AAT3113_08

AAT3113_08

更新时间： 2024-11-21 04:30:31

品牌	Logo	应用领域
ANALOGICTECH		泵
页数	文件大小	规格书
15页	1591K
描述
High Efficiency 1.5X Fractional Charge Pumps For White LED Applications

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AAT3113_08 数据手册

PRODUCT DATASHEET

AAT3113,AAT3114/14A

ChargePump

High Efficiency 1.5X Fractional Charge Pumps For White LED Applications

General Description

Features

The AAT3113 and AAT3114/14A are low noise, constant

frequency charge pump DC/DC converters that use frac-

tional (1.5X) conversion to increase efficiency in white

LED applications. The devices can be used to produce

current levels up to 20mA for each output from a 2.7V

to 5.5V input. A low external parts count (two 1µF flying

capacitors and two small bypass capacitors at V_INand

OUT) makes these devices ideally suited for small, bat-

tery-powered applications.

• AAT3113: Four Outputs

• AAT3114/14A: Six Outputs

• 20mA Full-Scale Current

• Simple Serial Control (S²Cwire) Interface

32-Position Logarithmic Scale with Digital Control

▪

• Low Noise Constant Frequency Operation

• 33% Less Input Current Than Doubler Charge Pump

• High Accuracy Brightness Matching

• Small Application Circuit

• Regulated Output Current

• Automatic Soft Start

• V_INRange: 2.7V to 5.5V

• No Inductors

• 600kHz Switching Frequency

• I_Q<1µA in Shutdown

• Temperature Range: -40°C to 85°C

• 12-Pin TSOPJW Package (AAT3113)

• 16-Pin QFN Package (AAT3114/14A)

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

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

current for 32-level logarithmic scale LED brightness

control. AAT3113 and AAT3114/14A devices have a ther-

mal management system for protection 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. A high switching frequency enables the

use of small external capacitors. A low-current shutdown

feature disconnects the load from V_INand reduces quies-

cent current to less than 1µA. The AAT3113 provides

four LED current source outputs, and the AAT3114/14A

provides six. The AAT3113 is available in a Pb-free

12-pin TSOPJW package, and the AAT3114/14A is avail-

able in a Pb-free 16-pin QFN package.

Applications

• Programmable Current Source

• White LED Backlighting

Typical Application

VIN

C1+

VIN

C1+

1µF

C1-

C2+

OUT

C1-

C2+

OUT

C_IN

1µF

C_OUT

1µF

V_BATTERY

C_IN

1µF

C_OUT

1µF

AAT3114/14A

C2-

1µF

V_BATTERY

AAT3113

C2-

EN/SET

GND

EN/SET

GND

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

3113.2008.05.1.10

12 3 4 5 6 7...15

中文翻译

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与AAT3113_08相关器件

型号	品牌	获取价格	描述	数据表
AAT3113ISN-20-T1	ANALOGICTECH	获取价格	High Efficiency 1.5X Fractional Charge Pumps For White LED Applications
AAT3113ITP	ANALOGICTECH	获取价格	High Efficiency 1.5X Fractional Charge Pumps For White LED Applications
AAT3113ITP-20-T1	ANALOGICTECH	获取价格	High Efficiency 1.5X Fractional Charge Pumps For White LED Applications
AAT3113ITP-20-T1	SKYWORKS	获取价格	LED Driver, PDSO12,
AAT3113ITP-20-T1	AAT	获取价格	High Efficiency 1.5X Fractional Charge Pumps For White LED Applications
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

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