Datasheet > AAT1272IWO-T1

AAT1272IWO-T1

更新时间： 2024-02-23 09:36:02

品牌	Logo	应用领域
ANALOGICTECH		/
页数	文件大小	规格书
20页	2644K
描述
Switching Regulator/Controller,

阅读下载

获取价格

技术参数
数据手册

如果您发现信息不准确，欢迎纠错

AAT1272IWO-T1 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.83
接口集成电路类型：	LED DISPLAY DRIVER	峰值回流温度（摄氏度）：	NOT SPECIFIED
处于峰值回流温度下的最长时间：	NOT SPECIFIED	Base Number Matches：	1

AAT1272IWO-T1 数据手册

PRODUCT DATASHEET

AAT1272

SwitchReg

1.5A Step-Up Current Regulator for Flash LEDs

Typical Application

1μH

OUT

High Current Flash LEDs

C_IN

2.2μF

V_BAT

C_OUT

2.2μF

AAT1272

Flash

Enable

FLEN

FLOUTA

FLOUTB

Enable

SDA

SCL

I²C

Interface

SCL

C_T

RSET AGND PGND FLGND

R_SET

107kΩ

Pin Descriptions

Pin # Symbol Function

Flash timer control input. Connect a capacitor between CT and AGND to set maximum duration of the ﬂash

pulse. To disable the ﬂash timer, connect CT to AGND.

Enable input. EN is an active HIGH asserted input. EN must be strobed low-to-high to enable the AAT1272 to

accept I²C programming instructions.

Flash enable pin. A low-to-high transition on the FLEN pin initiates a ﬂash pulse and starts the ﬂash timer.

Analog ground pin. Connect AGND to PGND, GND, and FLGND at a single point as close to the AAT1272 as

possible.

FLEN

AGND

Power input. Connect IN to the input power supply voltage. Connect a 2.2μF or larger ceramic capacitor from

IN to PGND as close as possible to the AAT1272

Boost converter switching node. Connect a 1μH inductor between SW and IN.

Power ground pin. Connect PGND to AGND, GND, and FLGND at a single point as close to the AAT1272 as pos-

sible.

PGND

Power output of the boost converter. Connect a 2.2μF or larger ceramic capacitor from OUT to PGND as close

as possible to the AAT1272. Connect OUT to the anode(s) of the Flash LED(s).

OUT

SCL

SDA

I²C interface serial control line.

I²C interface serial data/address.

Flash Output B. Connect cathode of Flash LEDB to FLOUTB. For a single ﬂash LED, connect FLOUTB and

FLOUTA together. For two ﬂash LEDs, each output will conduct 50% of the total ﬂash output current.

Flash ground pin. Connect FLGND to PGND, GND, and AGND at a single point as close to the AAT1272 as

possible.

Flash Output A. Connect cathode of Flash LEDA to FLOUTA. For a single ﬂash LED, connect FLOUTA and

FLOUTB together. For two ﬂash LEDs, each output will conduct 50% of the total ﬂash output current.

FLOUTB

FLGND

FLOUTA

Flash current setting input. A 107kΩ resistor from RSET to AGND sets the maximum ﬂash current available

at FLOUTA and FLOUTB to 1.5A. Each FLOUTA and FLOUTB channel will conduct 50% of the maximum pro-

grammed current. The AAT1272’s ﬂash-to-movie-mode ratio is ﬁxed at 7.3:1.

RSET

Exposed paddle (bottom); Connect EP to PGND as close as possible to the AAT1272.

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

1272.2009.04.1.2

123 4 5 6 7...20

下载PDF

与AAT1272IWO-T1相关器件

型号	品牌	描述	获取价格	数据表
AAT1274	SKYWORKS	1.5A Single Flash LED Driver IC	获取价格
AAT1274IWO	SKYWORKS	1.5A Single Flash LED Driver IC	获取价格
AAT1275	ANALOGICTECH	Boost Converter with USB Power Switch	获取价格
AAT1275_08	ANALOGICTECH	Boost Converter with USB Power Switch	获取价格
AAT1275AIRN-0.6-T1	SKYWORKS	Switching Regulator	获取价格
AAT1275AITP-0.6-T1	SKYWORKS	Switching Regulator	获取价格

与AAT1272IWO-T1相关文章

VIPER22A的资料手册解读、引脚参数说明、代换型号推荐
2024-05-14

5
ADS1256的资料手册解读、采集电压范围、读数变化原因分析及实际测量遇到的问题
2024-05-14

8
MAX6675资料手册参数详解、引脚配置说明
2024-05-13

13
LM258引脚图及功能介绍、主要参数分析
2024-05-13

11

产品中心

服务支持

精选活动

关于我们

帮助中心

AAT1272IWO-T1

AAT1272IWO-T1 技术参数

AAT1272IWO-T1 数据手册

与AAT1272IWO-T1相关器件

与AAT1272IWO-T1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

AAT1272IWO-T1

AAT1272IWO-T1 技术参数

AAT1272IWO-T1 数据手册

与AAT1272IWO-T1相关器件

与AAT1272IWO-T1相关文章

您还可以找

您在本页遇到什么问题？