Datasheet > AAT3164

AAT3164

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
ANALOGICTECH		泵
页数	文件大小	规格书
14页	393K
描述
High Efficiency 1X/1.5X/2X Charge Pump for Six-Channel White LED Applications

阅读下载

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

AAT3164 数据手册

AAT3164

High Efficiency 1X/1.5X/2X Charge Pump for

Six-Channel White LED Applications

™

ChargePump

General Description

Features

The AAT3164 is a low noise, constant frequency

charge pump DC/DC converter that uses a tri-

mode load switch (1X), fractional (1.5X), and dou-

bling (2X) conversion to maximize efficiency for

white LED applications. The device is capable of

driving up to six channels of LEDs at up to 30mA

per channel from a 2.7V to 5.5V input. The current

sinks may be operated individually or in parallel for

driving higher-current LEDs. A low external parts

count (two 1µF flying capacitors and two small 1µF

capacitors at IN and OUT) makes this part ideally

suited for small, battery-powered applications.

•

V_INRange: 2.7V to 5.5V

Tri-Mode (1X/1.5X/2X) Charge Pump Operation

— Maximizes Efficiency and LED V_F

Coverage

— 1MHz Constant Switching Frequency

— No Inductors, Low Noise Operation

Drives Six Channels of LEDs up to 30mA/

Channel

— User-Programmable R_SETSets Maximum

LED Current

— Excellent LED Channel-to-Channel

Current Match

•

Digitally Programmable LED Current with

AnalogicTech's patented single-wire Simple Serial

Control™ (S²Cwire™) serial digital input is used to

enable, disable, and set current for each LED with

16 levels from a maximum of 40mA down to 50µA.

The maximum current level is programmed via an

external resistor. To save power, the low-current

mode supply current can be programmed as low

as 70µA.

Single-Wire S²Cwire Interface

— 16 Current Levels From I_{LED_MAX}to 50µA

Low I_Q(70µA) for Low Current Mode Operation

True Load Disconnect in Shutdown; I_Q< 1µA

Built-In Thermal Protection

Built-In Auto-Disable for Open LED Circuit

Automatic Soft-Start Minimizes Inrush Startup

Current

•

Each output of the AAT3164 is equipped with built-

in protection for V_OUTshort-circuit and auto-disable

for LED short-circuit conditions. Built-in soft-start

circuitry prevents excessive inrush current during

start-up. A low-current shutdown feature discon-

nects the load from V_INand reduces quiescent cur-

rent to less than 1µA.

•

Small 3x4mm TDFN34-16 Package

Applications

•

Color (RGB) Lighting

Programmable Current Sinks

White LED Backlighting

The AAT3164 is available in a Pb-free, space-saving,

ultra-thin (3x4x0.75mm), thermally-enhanced 16-pin

TDFN package.

White Photo Flash for Digital Still Cameras

Typical Application

1µF

C1+ C1- C2+ C2-

OUT

Li-Ion

Battery

_NOM= 3.6V

AAT3164

C_IN

µF

C_OUT

µF

D1 D2 D3 D4 D5 D6

OSRAM

LW M67C

GND

EN/SET

RSET

26.1K

3164.2006.07.1.0

12 3 4 5 6 7...14

下载PDF

与AAT3164相关器件

型号	品牌	描述	获取价格	数据表
AAT3164IRN-T1	ANALOGICTECH	High Efficiency 1X/1.5X/2X Charge Pump for Six-Channel White LED Applications	获取价格
AAT3166	ANALOGICTECH	High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications	获取价格
AAT3166IWP-T1	ANALOGICTECH	High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications	获取价格
AAT3167	ANALOGICTECH	High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications	获取价格
AAT3167	AAT	High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications	获取价格
AAT3167_07	ANALOGICTECH	High Efficiency 1X/1.5X/2X Charge Pump for White LED Applications	获取价格

产品中心

服务支持

精选活动

关于我们

帮助中心

AAT3164

AAT3164 数据手册

与AAT3164相关器件

与AAT3164相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

AAT3164

AAT3164 数据手册

与AAT3164相关器件

与AAT3164相关文章

您还可以找

您在本页遇到什么问题？