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LP5521TM/NOPB PDF预览

LP5521TM/NOPB

更新时间： 2024-01-25 06:28:40
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
40页 596K
描述
IC LED DISPLAY DRIVER, PBGA20, 2.10 X 1.70 MM, 0.60 MM HEIGHT, 0.40 MM PITCH, ROHS COMPLIANT, MICRO SMD-20, Display Driver

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LP5521TM/NOPB 技术参数

是否Rohs认证： 符合生命周期：Transferred
包装说明：VFBGA, BGA20,4X5,16Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：7.5数据输入模式：SERIAL
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：R-PBGA-B20
JESD-609代码：e1长度：2.066 mm
湿度敏感等级：1复用显示功能：YES
功能数量：1区段数：3
端子数量：20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：BGA20,4X5,16
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：2.7 V标称供电电压：3.6 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：0.4 mm端子位置：BOTTOM
处于峰值回流温度下的最长时间：40宽度：1.717 mm
最小 fmax：0.4 MHzBase Number Matches：1

LP5521TM/NOPB 数据手册

 浏览型号LP5521TM/NOPB的Datasheet PDF文件第2页浏览型号LP5521TM/NOPB的Datasheet PDF文件第3页浏览型号LP5521TM/NOPB的Datasheet PDF文件第4页浏览型号LP5521TM/NOPB的Datasheet PDF文件第5页浏览型号LP5521TM/NOPB的Datasheet PDF文件第6页浏览型号LP5521TM/NOPB的Datasheet PDF文件第7页 
May 6, 2008  
LP5521  
Programmable Three Channel LED Driver  
General Description  
Features  
■
The LP5521 is a three channel LED driver designed to pro-  
duce variety of lighting effects for mobile devices. High effi-  
ciency charge pump enables LED driving over full Li-Ion  
battery voltage range. The device has a program memory for  
creating variety of lighting sequences. When program mem-  
ory has been loaded, LP5521 can operate independently  
without processor control.  
Adaptive charge pump with 1x and 1.5x gain provides up  
to 95% LED drive efficiency  
Charge pump with soft start and overcurrent/short circuit  
protection  
■
Low input ripple and EMI  
■
■
■
■
■
■
Very small solution size, no inductor or resistors required  
200 nA typical shutdown current  
Automatic power save mode  
LP5521 maintains excellent efficiency over a wide operating  
range by automatically selecting proper charge pump gain  
based on LED forward voltage requirements. LP5521 is able  
to automatically enter power-save mode, when LED outputs  
are not active and thus lowering current consumption.  
I2C compatible interface  
Independently programmable constant current outputs  
with 8-bit current setting and 8-bit PWM control  
Three independent LED channels have accurate pro-  
grammable current sources and PWM control. Each channel  
has program memory for creating desired lighting sequences  
with PWM control.  
Typical LED output saturation voltage 50 mV and current  
matching 1%  
Three program execution engines with flexible instruction  
set  
■
■
LP5521 has a flexible digital interface. Trigger I/O and 32 kHz  
clock input allow synchronization between multiple devices.  
Interrupt output can be used to notify processor, when LED  
sequence has ended. LP5521 has four pin selectable I2C ad-  
dresses. This allows connecting up to four parallel devices in  
one I2C bus. GPO and INT pins can be used as a digital con-  
trol pin for other devices.  
Autonomous operation without external control  
Large SRAM program memory  
■
■
■
■
■
Two general purpose digital outputs  
microSMD-20 package, 0.4 mm pitch  
Bumped LLP-24 package, 0.5 mm pitch  
LP5521 requires only four small and low cost ceramic capac-  
itors.  
Applications  
Fun / indicator lights  
■
■
■
LP5521 is available in tiny 2.1x1.7x0.6 mm microSMD-20  
package and in 4.0x5.0x0.8 mm bumped LLP-24 package.  
LCD sub-display backlighting  
Keypad RGB backlighting and phone cosmetics  
Comprehensive application tools are available, including  
command compiler for easy LED sequence programming.  
Vibra, speakers, waveform generator  
■
Typical Application  
20186270  
© 2008 National Semiconductor Corporation  
201862  
www.national.com  
1234567...40

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LP5521TM/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LP5521TM/NOPB TI

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