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LP5520TL PDF预览

LP5520TL

更新时间: 2024-02-16 15:42:28
品牌 Logo 应用领域
美国国家半导体 - NSC 驱动器
页数 文件大小 规格书
34页 1023K
描述
RGB Backlight LED Driver

LP5520TL 技术参数

是否Rohs认证: 符合生命周期:Transferred
包装说明:VFBGA, BGA25,5X5,20Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.54数据输入模式:SERIAL
接口集成电路类型:LED DISPLAY DRIVERJESD-30 代码:R-PBGA-B25
JESD-609代码:e1长度:2.77 mm
湿度敏感等级:1复用显示功能:NO
功能数量:1区段数:3
端子数量:25最高工作温度:85 °C
最低工作温度:-30 °C封装主体材料:PLASTIC/EPOXY
封装代码:VFBGA封装等效代码:BGA25,5X5,20
封装形状:RECTANGULAR封装形式:GRID ARRAY, VERY THIN PROFILE, FINE PITCH
峰值回流温度(摄氏度):260电源:3/5 V
认证状态:Not Qualified座面最大高度:0.675 mm
子类别:Display Drivers最大供电电压:5.5 V
最小供电电压:2.9 V表面贴装:YES
温度等级:COMMERCIAL EXTENDED端子面层:Tin/Silver/Copper (Sn/Ag/Cu)
端子形式:BALL端子节距:0.5 mm
端子位置:BOTTOM处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:2.59 mm最小 fmax:13 MHz

LP5520TL 数据手册

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May 2007  
LP5520  
RGB Backlight LED Driver  
General Description  
Features  
The LP5520 is an RGB backlight LED driver for small format  
color LCDs. RGB backlight enables better colors on the dis-  
play and power savings compared with white LED backlight.  
LP5520 offers small and simple driver solution without need  
for optical feedback. Calibration in display module production  
can be done in one temperature. LP5520 produces true white  
light over wide temperature range. Three independent LED  
drivers have accurate programmable current sinks and PWM  
modulation control. Using internal calibration memory and  
external temperature sensor, the RGB LED currents are ad-  
justed for perfect white balance independent of the brightness  
setting or temperature. The user programmable calibration  
memory has intensity vs. temperature data for each color.  
This white balance calibration data can be programmed to the  
memory on the production line of a backlight module.  
Temperature compensated LED intensity and color  
Individual calibration coefficients for each color  
Color accuracy ΔX and ΔY 0.003  
12 bit ADC for measurement of 2 sensors  
Adjustable current outputs for R, G and B LED  
0.2% typical LED output current matching  
PWM control inputs for each color  
SPI and I2C compatible interface  
Stand-alone mode with 1 wire control  
Sequential mode for one color at a time  
Magnetic high efficiency boost converter  
Programmable output voltage from 5V to 20V  
Adaptive output voltage control option  
< 2 µA typical shutdown current  
The device has a magnetic boost converter that creates up to  
20V LED supply voltage from the battery voltage. The output  
can be set at 1V step from 5V to 20V. In adaptive mode the  
circuit automatically adjusts the output voltage to minimum  
sufficient level for lowest power consumption.  
MicroSMD-25 package, 2.77 × 2.59 × 0.6mm  
Applications  
Temperature is measured using an external temperature sen-  
sor placed close to the LEDs. The second ADC input can be  
used e.g. for ambient light measurement.  
Color LCD display backlighting  
LED lighting applications  
Non-linear temperature compensation  
LP5520 is available in 25 pin microSMD™ package.  
Ambient light compensation  
Typical Application  
20186107  
© 2007 National Semiconductor Corporation  
201861  
www.national.com  

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