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LTC3209EUF-2#TR PDF预览

LTC3209EUF-2#TR

更新时间： 2024-11-21 20:10:47
品牌 Logo 应用领域
凌特 - Linear 驱动接口集成电路
页数 文件大小 规格书
20页 227K
描述
LTC3209 - 600mA Main/Camera LED Controller; Package: QFN; Pins: 20; Temperature Range: -40°C to 85°C

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中文翻译

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LTC3209EUF-2#TR 技术参数

是否Rohs认证： 不符合生命周期：Transferred
零件包装代码：QFN包装说明：HVQCCN, LCC20,.16SQ,20
针数：20Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.07数据输入模式：SERIAL
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：S-PQCC-N20
JESD-609代码：e0长度：4 mm
湿度敏感等级：1复用显示功能：NO
功能数量：1端子数量：20
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：HVQCCN
封装等效代码：LCC20,.16SQ,20封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：235
电源：3 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：4.5 V最小供电电压：1.5 V
标称供电电压：3 V表面贴装：YES
技术：CMOS温度等级：INDUSTRIAL
端子面层：Tin/Lead (Sn/Pb)端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
处于峰值回流温度下的最长时间：20宽度：4 mm
Base Number Matches：1

LTC3209EUF-2#TR 数据手册

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LTC3209-1/LTC3209-2  
600mA Main/Camera  
LED Controller  
U
FEATURES  
DESCRIPTIO  
The LTC®3209-1/LTC3209-2 are highly integrated  
multidisplay LED controllers. These parts contain a high  
efficiency, low noise charge pump to provide power to  
MAIN, CAM and AUX LED displays. The LTC3209-1/  
LTC3209-2 require only four small ceramic capacitors  
andonecurrentsetresistortoformacompleteLEDpower  
supply and current controller.  
■
Multimode Charge Pump Provides Up to 94%  
Efficiency (1x, 1.5x, 2x)  
■
Up to 600mA Total Output Current  
■
LTC3209-1: 8 Current Sources Available as  
6 × 25mA MAIN, 1 × 400mA CAM and 1 × 15mA AUX  
■
LTC3209-2: 8 Current Sources Available as  
5 × 25mA MAIN, 2 × 200mA CAM and 1 × 15mA AUX  
■
LED On/Off and Brightness Level Programmable  
Themaximumdisplaycurrentsaresetbyasingleexternal  
resistor. Current for each LED is controlled by a precision  
internal current source. Dimming and On/Off for all dis-  
playsisachievedviatheI2Cserialinterface. 256statesare  
availablefortheMAINdisplay. Sixteenstatesareavailable  
for the CAM display and four states are available for the  
AUX display.  
Using 2-Wire I2CTM Interface  
■
Automatic Charge Pump Mode Switching or Fixed  
Mode for Power Supply Generation  
■
Low Noise Constant Frequency Operation*  
■
Internal Soft-Start Limits Inrush Current During  
Start-up and Mode Switching  
■
Short Circuit/Thermal/Open-Shorted LED Protection  
■
■
■
■
The charge pump optimizes efficiency based on the  
voltage across the LED current sources. The part powers  
upin1xmodeandwillautomaticallyswitchtoboostmode  
whenever any enabled MAIN or CAM LED current source  
begins to enter dropout. The first dropout switches the  
part into 1.5x mode and a subsequent dropout switches  
the part into 2x mode. The part resets to 1x mode  
whenever a data bit is updated via the I2C port. The parts  
are available in a 4mm × 4mm 20-lead QFN package.  
256 Brightness States for MAIN Display  
16 Brightness States for CAM Display  
4 Brightness States for AUX Display  
20-Lead (4mm ×U4mm) QFN Package  
APPLICATIO S  
■
Video/Camera Phones with QVGA+ Displays  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
*Protected by U.S. Patents, including 6411531  
U
TYPICAL APPLICATIO  
LTC3209-1 6 MAIN/1 CAM Operation  
LTC3209-2 5 MAIN/2 CAM Operation  
2.2µF  
2.2µF  
2.2µF  
2.2µF  
MAIN  
CAM  
MAIN  
CAM  
C1P C1M C2P C2M  
CPO  
C1P C1M C2P C2M  
CPO  
V
BAT1,2  
2.2µF  
2.2µF  
V
V
BAT  
BAT  
V
BAT1,2  
RED  
RED  
2.2µF  
2.2µF  
LTC3209-2  
LTC3209-1  
SCL  
SDA  
SCL  
SDA  
2
2
6
5
2
I C  
I C  
MAIN1-6  
CAM  
MAIN1-5  
CAM  
LOW HI  
CAMHL  
AUX  
GND  
LOW HI  
CAMHL  
AUX  
GND  
3209 TA01  
3209 TA02  
R
R
REF  
REF  
24.3k  
24.3k  
320912fa  
1
1234567...20

中文翻译

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