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LM2759SDX/NOPB PDF预览

LM2759SDX/NOPB

更新时间： 2024-11-14 11:12:35
品牌 Logo 应用领域
德州仪器 - TI 开关驱动闪光灯光电二极管接口集成电路电容器驱动器
页数 文件大小 规格书
22页 1706K
描述
具有 I2C 兼容接口、1A 开关电容器 LED 闪光灯驱动器 | DQB | 12 | -30 to 85

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LM2759SDX/NOPB 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Active包装说明：HVSON, SOLCC12,.12,16
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：1.73Is Samacsys：N
数据输入模式：SERIAL输入特性：STANDARD
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：S-PDSO-N12
JESD-609代码：e3长度：3 mm
湿度敏感等级：3复用显示功能：NO
功能数量：1区段数：1
端子数量：12最高工作温度：85 °C
最低工作温度：-30 °C输出特性：CONSTANT-CURRENT
封装主体材料：PLASTIC/EPOXY封装代码：HVSON
封装等效代码：SOLCC12,.12,16封装形状：SQUARE
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：260
电源：3.6 V认证状态：Not Qualified
座面最大高度：0.8 mm子类别：Display Drivers
最大供电电压：5.5 V最小供电电压：2.7 V
标称供电电压：3.6 V表面贴装：YES
技术：CMOS温度等级：OTHER
端子面层：Matte Tin (Sn)端子形式：NO LEAD
端子节距：0.4 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3 mm
Base Number Matches：1

LM2759SDX/NOPB 数据手册

 浏览型号LM2759SDX/NOPB的Datasheet PDF文件第2页浏览型号LM2759SDX/NOPB的Datasheet PDF文件第3页浏览型号LM2759SDX/NOPB的Datasheet PDF文件第4页浏览型号LM2759SDX/NOPB的Datasheet PDF文件第5页浏览型号LM2759SDX/NOPB的Datasheet PDF文件第6页浏览型号LM2759SDX/NOPB的Datasheet PDF文件第7页 
LM2759  
www.ti.com  
SNVS577D –JUNE 2008–REVISED MAY 2013  
LM2759 1A Switched Capacitor Flash LED Driver with I2C Compatible Interface  
Check for Samples: LM2759  
1
FEATURES  
APPLICATIONS  
2
•
Up to 1A Output Current  
Solution Area < 22 mm2  
No Inductor Required  
90% Peak Efficiency  
•
Camera Flash in Cellular Phones  
•
•
•
•
DESCRIPTION  
LM2759 is an integrated low-noise, high-current  
switched capacitor DC/DC converter with a regulated  
current source. The device requires only four small  
ceramic capacitors making the total solution area less  
than 22 mm2 and the height less than 1 mm. The  
LM2759 is capable of driving loads up to 1A from a  
single-cell Li-Ion battery. Maximum efficiency is  
achieved over the input voltage range by actively  
selecting the proper gain based on the LED forward  
voltage and current requirements.  
Adaptive 1x, 1.5x and 2x Gains for Maximum  
Efficiency  
•
•
Load Disconnect in Shutdown  
Accurate Input Current Control During Gain  
Transitions  
•
•
Flash Time-Out  
TX Input Pin Ensures Synchronization with RF  
Power Amplifier Pulse  
The LED current can be programmed up to 1A via an  
I2C-compatible interface, along with eight selectable  
Flash Time-Out durations. One high-current Flash  
LED can be driven either in a high-power Flash mode  
or a low-power Torch mode. The Strobe pin allows  
the flash to be toggled via a Flash enable signal from  
a camera module. The TX input pin limits the Flash  
LED current to the Torch current level during a RF  
PA pulse, to reduce high loads on the battery.  
Internal soft-start circuitry limits the amount of inrush  
current during start-up.  
•
•
•
•
Torch, Flash, and Indicator Modes  
External Flash Enable via Strobe Input Pin  
Strobe Input Disable via I2C  
Programmable Flash Pulse Duration, and  
Torch and Flash Currents via I2C-Compatible  
Interface  
•
•
1MHz Constant Frequency Operation  
Low Profile 12–Pin WSON (3mm x 3mm x  
0.8mm)  
LM2759 is offered in a small 12-pin thermally  
enhanced WSON package.  
Typical Application Circuit  
I
= Up to 1A  
LED  
V
= 3.0V - 5.5V  
IN  
V
V
IN  
OUT  
C +  
1
2.2 µF  
C
4.7 µF  
OUT  
C
IN  
D
1
2.2 µF  
2.2 µF  
C
1
C -  
1
I
SINK  
C +  
2
LM2759  
C
2
C -  
2
Strobe  
TX  
SDA  
SCL  
GND  
TDK: 2.2 µF œ C1608X5R1C225  
4.7 µF œ C2012X5R1C475  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2008–2013, Texas Instruments Incorporated  
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