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LM3533TMX-40A PDF预览

LM3533TMX-40A

更新时间： 2024-11-14 12:09:47
品牌 Logo 应用领域
德州仪器 - TI 智能手机
页数 文件大小 规格书
53页 2113K
描述
Complete Lighting Power Solution for Smartphone Handsets

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中文翻译

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LM3533TMX-40A 技术参数

生命周期：Obsolete包装说明：VFBGA,
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.64
数据输入模式：SERIAL接口集成电路类型：LED DISPLAY DRIVER
JESD-30 代码：R-PBGA-B20长度：2.015 mm
功能数量：1区段数：25
端子数量：20最高工作温度：125 °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座面最大高度：0.675 mm
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：AUTOMOTIVE端子形式：BALL
端子节距：0.4 mm端子位置：BOTTOM
宽度：1.755 mmBase Number Matches：1

LM3533TMX-40A 数据手册

 浏览型号LM3533TMX-40A的Datasheet PDF文件第2页浏览型号LM3533TMX-40A的Datasheet PDF文件第3页浏览型号LM3533TMX-40A的Datasheet PDF文件第4页浏览型号LM3533TMX-40A的Datasheet PDF文件第5页浏览型号LM3533TMX-40A的Datasheet PDF文件第6页浏览型号LM3533TMX-40A的Datasheet PDF文件第7页 
LM3533  
Complete Lighting Power Solution for Smartphone Handsets  
General Description  
Features  
The LM3533 is a complete power source for backlight, key-  
pad, and indicator LEDs in smartphone handsets. The high-  
voltage inductive boost converter provides the power for two  
series LED strings for display backlight and keypad functions  
(HVLED1 and HVLED2). The integrated charge pump pro-  
vides the bias for the five low-voltage indicator LED current  
sinks (LVLED1-LVLED5). All low-voltage current sinks can  
have a programmable pattern modulated onto their output  
current for a wide variety of blinking patterns.  
Drives Two Parallel High-Voltage LED Strings for Display  
and Keypad Lighting  
●
●
●
●
●
High-Voltage Strings Capable of up to 40V Output Voltage  
and up to 90% Efficiency  
Up to 30mA per Current Sink (Both Backlight and  
Indicator)  
14-Bit Equivalent Exponential Dimming with 8-Bit  
Programmable Backlight Code  
Selectable Analog ALS Input with 128 Programmable Gain  
Setting Resistors or PWM ALS Input with Internal Low  
Pass Filter  
Additional features include a Pulse Width Modulation (PWM)  
control input for content adjustable backlight control, and an  
Ambient Light Sensor interface (ALS) with an internal 8-bit  
ADC to provide automatic current adjustment based upon  
ambient light conditions. Both the PWM and ALS inputs can  
be used to control any high- or low-voltage current sink.  
The LM3533 is fully programmable via an I2C-compatible in-  
terface. The device is available in a 20-bump (1.755mm x  
2.015mm x 0.6mm) micro SMD and operates over a 2.7V to  
5.5V input voltage range and a −40°C to +85°C temperature  
range.  
PWM Input for Content Adjustable Brightness Control  
(CABC)  
●
Five Low-Voltage Current Sinks for Indicator LEDs  
●
●
Integrated Charge Pump for Improved Efficiency and VIN  
Operating Range  
Internal Pattern Generation Engine  
●
●
●
Fully Configurable LED Grouping and Control  
Four Programmable Over-voltage Protection Thresholds  
(16V, 24V, 32V, and 40V)  
Programmable 500kHz and 1MHz Switching Frequency  
27mm2 Total Solution Size  
●
●
Applications  
Power Source for Smart Phone Illumination  
●
●
●
Display, Keypad and Indicator Illumination  
RGB Indicator Driver  
TYPICAL APPLICATION CIRCUIT  
30135701  
PRODUCTION DATA information is current as of  
publication date. Products conform to specifications per  
the terms of the Texas Instruments standard warranty.  
Production processing does not necessarily include  
testing of all parameters.  
301357 SNOSC68A  
Copyright © 1999-2012, Texas Instruments Incorporated  
1234567...53

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