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LM3528TME

更新时间： 2024-01-12 14:15:25
品牌 Logo 应用领域
美国国家半导体 - NSC 驱动接口集成电路
页数 文件大小 规格书
32页 702K
描述
IC LED DISPLAY DRIVER, PBGA12, 1.20 X 1.60 MM, 0.60 MM HEIGHT, MICRO, SMD-12, Display Driver

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中文翻译

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LM3528TME 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：BGA包装说明：VFBGA,
针数：12Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.3数据输入模式：SERIAL
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：R-PBGA-B12
JESD-609代码：e1长度：1.615 mm
湿度敏感等级：1复用显示功能：NO
功能数量：1区段数：12
端子数量：12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：VFBGA封装形状：RECTANGULAR
封装形式：GRID ARRAY, VERY THIN PROFILE, FINE PITCH认证状态：Not Qualified
座面最大高度：0.6 mm最大供电电压：5.5 V
最小供电电压：2.5 V标称供电电压：3.6 V
表面贴装：YES温度等级：INDUSTRIAL
端子面层：Tin/Silver/Copper (Sn/Ag/Cu)端子形式：BALL
端子节距：0.4 mm端子位置：BOTTOM
宽度：1.215 mmBase Number Matches：1

LM3528TME 数据手册

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August 3, 2008  
LM3528  
High Efficiency, Multi Display LED Driver with 128  
Exponential Dimming Steps and Integrated OLED Power  
Supply in a 1.2mm × 1.6mm µSMD Package  
General Description  
Features  
The LM3528 current mode boost converter offers two sepa-  
rate outputs. The first output (MAIN) is a constant current sink  
for driving series white LED’s. The second output (SUB/FB)  
is configurable as a constant current sink for series white LED  
bias, or as a feedback pin to set a constant output voltage for  
powering OLED panels.  
128 Exponential Dimming Steps  
■
■
■
■
Programmable Auto-Dimming Function  
Up to 90% Efficient  
Low Profile 12 Bump µ-SMD Package (1.2mm x 1.6mm x  
0.6mm)  
Integrated OLED Display Power Supply and LED Driver  
■
■
As a dual output white LED bias supply, the LM3528 adap-  
tively regulates the supply voltage of the LED strings to max-  
imize efficiency and insure the current sinks remain in  
regulation. The maximum current per output is set via a single  
external low power resistor. An I2C compatible interface al-  
lows for independent adjustment of the LED current in either  
output from 0 to max current in 128 exponential steps. When  
configured as a white LED + OLED bias supply the LM3528  
can independently and simultaneously drive a string of up to  
6 white LED’s and deliver a constant output voltage of up to  
21V for OLED panels.  
Programmable Pattern Generator Output for LED  
Indicator Function  
Drives up to 12 LED’s at 20mA  
■
■
■
■
■
■
■
■
Drives up to 5 LED’s at 20mA and delivers 18V at 40mA  
1% Accurate Current Matching Between Strings  
Internal Soft-Start Limits Inrush Current  
True Shutdown Isolation for LED’s  
Wide 2.5V to 5.5V Input Voltage Range  
22V Over-Voltage Protection  
Output over-voltage protection shuts down the device if  
VOUT rises above 22V allowing for the use of small sized low  
voltage output capacitors. Other features include a dedicated  
general purpose I/O (GPIO) and a multi-function pin (HWEN/  
PGEN/GPIO) which can be configured as a 32 bit pattern  
generator, a hardware enable input, or as a GPIO. When  
configured as a pattern generator, an arbitrary pattern is pro-  
grammed via the I2C compatible interface and output at  
HWEN/PGEN/GPIO for indicator LED flashing or for external  
logic control. The LM3528 is offered in a tiny 12-bump µSMD  
package and operates over the -40°C to +85°C temperature  
range.  
1.25MHz Fixed Frequency Operation  
Dedicated Programmable General Purpose I/O  
■
■
Active Low Hardware Reset  
Applications  
Dual Display LCD Backlighting for Portable Applications  
■
■
■
■
Large Format LCD Backlighting  
OLED Panel Power Supply  
Display Backlighting with Indicator Light  
30020563  
Typical PCB Layout  
30020501  
Typical Application Circuit  
© 2008 National Semiconductor Corporation  
300205  
www.national.com  
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