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LP3950

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具有音频同步器的彩色 LED 驱动器

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LP3950

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产品详情

Number of channels 6 LED current per channel (mA) 25 LED configuration Parallel Program memory Yes Topology Boost Programmable ramp control Yes Vin (min) (V) 3 Vin (max) (V) 7.2 Iout (max) (A) 0.15 Features I2C control Iq (typ) (mA) 0.85 Shutdown current (ISD) (typ) (µA) 1 Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 6 LED current per channel (mA) 25 LED configuration Parallel Program memory Yes Topology Boost Programmable ramp control Yes Vin (min) (V) 3 Vin (max) (V) 7.2 Iout (max) (A) 0.15 Features I2C control Iq (typ) (mA) 0.85 Shutdown current (ISD) (typ) (µA) 1 Operating temperature range (°C) -40 to 85 Rating Catalog
TLGA (NPC) 32 24.75 mm² 4.5 x 5.5
  • Audio Synchronization for Color LEDs with Two Modes: Amplitude and Frequency
  • Programmable Frequency and Amplitude Response with Tracking Speed Control
  • Automatic Gain Control or Selectable Gain for Input Signal Optimization
  • RGB Pattern Generator Similar to LP3933/LP3936
  • Magnetic DC-DC Boost Converter with Programmable Boost Output Voltage
  • Selectable SPI or I2C Compatible Interface
  • One Pin Default Enable for Non-Serial Interface Users. One Pin Selector for Synchronization Mode
  • Space Efficient 32-Pin TLGA Package

All trademarks are the property of their respective owners.

  • Audio Synchronization for Color LEDs with Two Modes: Amplitude and Frequency
  • Programmable Frequency and Amplitude Response with Tracking Speed Control
  • Automatic Gain Control or Selectable Gain for Input Signal Optimization
  • RGB Pattern Generator Similar to LP3933/LP3936
  • Magnetic DC-DC Boost Converter with Programmable Boost Output Voltage
  • Selectable SPI or I2C Compatible Interface
  • One Pin Default Enable for Non-Serial Interface Users. One Pin Selector for Synchronization Mode
  • Space Efficient 32-Pin TLGA Package

All trademarks are the property of their respective owners.

The LP3950 is a color LED driver with a built-in audio synchronization feature for any analog audio input such as polyphonic ring tones and MP3 music. LEDs can be synchronized to an audio signal with two methods - amplitude and frequency. Also several fine tuning options are available for differentiation purposes. The chip also has an unique AGC (Automatic Gain Control) feature which tracks the input signal level and automatically adjusts the gain to an optimal value.

The LP3950 has a high efficiency magnetic DC/DC converter with programmable output voltage and switching frequency. The converter has high output current capability so it is also able to drive flash LEDs in camera phone applications.

The LP3950 is similar to LP3933 and LP3936 in that the color LEDs (or RGB LEDs) can also be programmed to generate light patterns (programmable color, intensity, on/off timing, slope and blinking cycle).

All functions are software controllable through a SPI or I2C compatible interface but the device also supports one pin control for enabling predefined (default) audio synchronization mode.

The LP3950 is a color LED driver with a built-in audio synchronization feature for any analog audio input such as polyphonic ring tones and MP3 music. LEDs can be synchronized to an audio signal with two methods - amplitude and frequency. Also several fine tuning options are available for differentiation purposes. The chip also has an unique AGC (Automatic Gain Control) feature which tracks the input signal level and automatically adjusts the gain to an optimal value.

The LP3950 has a high efficiency magnetic DC/DC converter with programmable output voltage and switching frequency. The converter has high output current capability so it is also able to drive flash LEDs in camera phone applications.

The LP3950 is similar to LP3933 and LP3936 in that the color LEDs (or RGB LEDs) can also be programmed to generate light patterns (programmable color, intensity, on/off timing, slope and blinking cycle).

All functions are software controllable through a SPI or I2C compatible interface but the device also supports one pin control for enabling predefined (default) audio synchronization mode.
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类型 标题 下载最新的英语版本 日期
* 数据表 LP3950 Color LED Driver with Audio Synchronizer 数据表 (Rev. C) 2013年 4月 6日
白皮书 常见 LED 功能和 LED 驱动器设计注意事项 英语版 2020年 9月 21日
应用手册 How to Select a RGB LED Driver 2019年 8月 8日

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包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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