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LTC3219EUD#TRPBF PDF预览

LTC3219EUD#TRPBF

更新时间: 2024-09-25 21:13:51
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 207K
描述
LTC3219 - 250mA Universal Nine Channel LED Driver; Package: QFN; Pins: 20; Temperature Range: -40°C to 85°C

LTC3219EUD#TRPBF 技术参数

是否Rohs认证: 符合生命周期:Transferred
零件包装代码:QFN包装说明:HVQCCN, LCC20,.11SQ,16
针数:20Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.67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:e3长度:3 mm
湿度敏感等级:1复用显示功能:NO
功能数量:1区段数:9
端子数量:20最高工作温度:85 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:HVQCCN封装等效代码:LCC20,.11SQ,16
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):260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:5.5 V
最小供电电压:2.9 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:QUAD处于峰值回流温度下的最长时间:30
宽度:3 mm最小 fmax:1.05 MHz
Base Number Matches:1

LTC3219EUD#TRPBF 数据手册

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LTC3219  
250mA Universal  
Nine Channel LED Driver  
FEATURES  
DESCRIPTION  
The LTC®3219 is a highly integrated multidisplay LED  
driver. The device contains a high efficiency, low noise  
charge pump to provide power to nine universal LED  
current sources. The LTC3219 requires only five small  
ceramic capacitors to form a complete LED power supply  
and current controller.  
Multimode Charge Pump Provides Up to 91%  
Efficiency  
Slew Limited Switching Reduces Conducted and  
Radiated Noise (EMI)  
Up to 250mA Total Output Current  
Nine 28mA Universal Current Sources with 64-Step  
Linear Brightness Control  
The maximum display currents are set by an internal pre-  
cision current reference. Independent dimming, On/Off,  
blinking and gradation control for all current sources is  
Independent On/Off, Brightness Level, Blinking and  
Gradation Control for Each Current Source Using  
TM  
2
2-Wire I C Interface  
2
achieved via the I C serial interface. 6-bit linear DACs are  
Internal Current Reference  
available for adjusting brightness levels for each universal  
LED current source.  
Configurable ENU Pin for Asynchronous LED On/Off  
Control  
The LTC3219 charge pump optimizes efficiency based on  
the voltage across the LED current sources. The device  
powers up in 1x mode and will automatically switch to  
boost mode whenever any enabled LED current source  
begins to enter dropout. The first dropout switches the  
IC into 1.5x mode and a subsequent dropout switches  
the LTC3219 into 2x mode. The part resets to 1x mode  
whenever a data register is updated via the I C port.  
, 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.  
Low Noise Charge Pump Operates in 1x, 1.5x or 2x  
Mode for Optimal Efficiency*  
Automatic or Forced Mode Switching  
Internal Soft-Start Limits Inrush Current  
Short-Circuit/Thermal Protection  
3mm × 3mm 20-Lead QFN Plastic Package  
2
APPLICATIONS  
Video Phones with QVGA+ Displays  
TYPICAL APPLICATION  
4-LED Main, 2-LED Sub and RGB  
C2  
1μF  
C3  
1μF  
MAIN  
SUB  
RGB  
C1P C1M C2P C2M  
CPO  
V
V
BAT  
BAT  
C1  
C4  
2.2μF  
2.2μF  
LTC3219  
2
9
2
ULED1-9  
SCL/SDA  
I C  
DV  
3219 TA01a  
DV  
CC  
CC  
0.1μF  
ENU  
GND  
ENABLE DISABLE  
3219fa  
1

LTC3219EUD#TRPBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC3219EUD#PBF Linear

类似代替

LTC3219 - 250mA Universal Nine Channel LED Driver; Package: QFN; Pins: 20; Temperature Ran

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