5秒后页面跳转
GRM21BR71A106KE51 PDF预览

GRM21BR71A106KE51

更新时间: 2024-11-25 01:06:59
品牌 Logo 应用领域
思佳讯 - SKYWORKS /
页数 文件大小 规格书
17页 2053K
描述
1.5A Single Flash LED Driver IC

GRM21BR71A106KE51 数据手册

 浏览型号GRM21BR71A106KE51的Datasheet PDF文件第2页浏览型号GRM21BR71A106KE51的Datasheet PDF文件第3页浏览型号GRM21BR71A106KE51的Datasheet PDF文件第4页浏览型号GRM21BR71A106KE51的Datasheet PDF文件第5页浏览型号GRM21BR71A106KE51的Datasheet PDF文件第6页浏览型号GRM21BR71A106KE51的Datasheet PDF文件第7页 
DATA SHEET  
AAT1274  
1.5A Single Flash LED Driver IC  
General Description  
Features  
The AAT1274 is a high-efficiency, 1.5A high-current  
boost converter for LED photo flash applications. It  
maintains output current regulation by switching the  
internal high-side and low-side switch transistors, pulse-  
width modulated at a fixed frequency of 2MHz. The high  
switching frequency allows the use of a small external  
inductor and output capacitor, making the AAT1274 ide-  
ally suited in all single cell, Li-ion-powered applications.  
Input Voltage Range: 2.7V to 5.5V  
Single Channel Flash Output  
Up to 1.5A Regulated Output Current  
Up to 88% Efficiency  
2 MHz Switching Frequency  
Separate Flash Enable  
Single Resistor Sets Flash and Movie Mode Current  
AS2Cwire Single Wire Programming:  
Movie Mode Current  
Skyworks' proprietary AS2Cwire™ (Advanced Simple  
Serial Control™) serial digital interface is used to enable,  
disable, configure, and program the operation of the  
AAT1274. Using the AS2Cwire interface, the movie-mode  
current level for each LED, and the flash-to-movie-mode  
current ratio can be programmed to one of 16 levels. The  
AAT1274 includes a separate Flash Enable input to initi-  
ate the flash operation and a Flash Inhibit pin which  
reduces the flash current to movie-mode levels during  
high battery demand.  
Flash/Movie Mode Current Ratio  
True Load Disconnect  
Soft-Start and Input Current Limit  
Over-Voltage (Open LED, Open Circuit), Short Circuit,  
and Over-Temperature Protection  
-40°C to +85°C Temperature Range  
TDFN33-14 Package  
Applications  
LED Photo Flash / Torch  
The maximum flash and movie-mode current is set by  
one external resistor where the ratio of flash to movie-  
mode current is set at approximately 7.3:1. The AAT1274  
can drive one high current LED.  
Camera Enabled Mobile Devices  
Cellphones/Smartphones  
Digital Still Cameras (DSCs)  
Multimedia Mobile Phones  
The AAT1274 contains a thermal management system to  
protect the device in the event of an output short-circuit  
condition. Built-in circuitry prevents excessive inrush  
current during start-up. The shutdown feature reduces  
quiescent current to less than 1.0μA.  
The AAT1274 is available in a Pb-free, thermally-enhanced  
TDFN33-14 package and operates over the -40°C to 85°C  
temperature range.  
Typical Application  
L1 1μH  
SW  
VBAT = 2.7V to 5.5V  
Enable/Set Input  
IN  
OUT  
COUT  
CIN  
2.2μF  
2.2μF  
Flash LED  
AAT1274  
EN/SET  
FL  
Flash Enable  
Flash Inhibit  
FLEN  
RSET  
RSET  
FLINH  
PGND AGND FLGND  
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com  
1
201981A  
• Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 21, 2012  

与GRM21BR71A106KE51相关器件

型号 品牌 获取价格 描述 数据表
GRM21BR71A106KE51# MURATA

获取价格

民用设备,工业设备,移动设备,植入式以外的医疗器械设备 [GHTF A/B/C],汽车[信
GRM21BR71A106KE51L INTERSIL

获取价格

3MHz Dual 1.5A Step-Down Converters and Dual Low-Input LDOs with I2C Compatible
GRM21BR71A106KE51L TI

获取价格

TPA2025D1 Audio Power Amplifier Evaluation Module
GRM21BR71A106KE51L MURATA

获取价格

CHIP MONOLITHIC CERAMIC CAPACITOR
GRM21BR71A106MA73 MURATA

获取价格

Chip Monolithic Ceramic Capacitor for General
GRM21BR71A106MA73# MURATA

获取价格

民用设备,工业设备,移动设备,植入式以外的医疗器械设备 [GHTF A/B/C],汽车[信
GRM21BR71A106ME51 MURATA

获取价格

Chip Monolithic Ceramic Capacitor for General
GRM21BR71A106ME51# MURATA

获取价格

民用设备,工业设备,移动设备,植入式以外的医疗器械设备 [GHTF A/B/C],汽车[信
GRM21BR71A225K MURATA

获取价格

Chip Monolithic Ceramic Capacitor 0805 X7R 2.
GRM21BR71A225KA01 MURATA

获取价格

Chip Monolithic Ceramic Capacitor for General