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LP8501

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多功能 9 输出 LED 驱动器

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LP8501

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产品详情

Number of channels 9 LED current per channel (mA) 25.5 LED configuration Parallel Program memory Yes Topology Charge pump Programmable ramp control Yes Vin (min) (V) 2.7 Vin (max) (V) 5.5 Iout (max) (A) 0.225 Features Analog/PWM mixed dimming, Constant current, Current control, I2C control, Programmable lighting engines Iq (typ) (mA) 0.6 Shutdown current (ISD) (typ) (µA) 0.2 Operating temperature range (°C) -30 to 85 Rating Catalog
Number of channels 9 LED current per channel (mA) 25.5 LED configuration Parallel Program memory Yes Topology Charge pump Programmable ramp control Yes Vin (min) (V) 2.7 Vin (max) (V) 5.5 Iout (max) (A) 0.225 Features Analog/PWM mixed dimming, Constant current, Current control, I2C control, Programmable lighting engines Iq (typ) (mA) 0.6 Shutdown current (ISD) (typ) (µA) 0.2 Operating temperature range (°C) -30 to 85 Rating Catalog
DSBGA (YFQ) 25 4.84 mm² 2.2 x 2.2
  • Three Independent Program Execution Engines for User-defined Programs with Large SRAM Memory for Storing Lighting Programs
  • 9 Programmable Source (High Side) Driver Outputs with 25.5 mA Full-Scale Current, 8-bit Current Setting Resolution and 12-Bit PWM Control Resolution
  • Flexible Grouping Possibility for All 9 Outputs Including GPO into Three Groups with Group PWM and Fade-In/ Fade-Out Controls
  • Built-in LED Test
  • Adaptive Charge Pump with 1x and 1.5x Gain Provides up to 95% LED Drive Efficiency, with Soft Start and Overcurrent/Short Circuit Protection
  • Automatic Power Save Mode; IVDD = 10 µA (typ.)
  • Two Wire, I2C-Compatible, Control Interface
  • Small Application Circuit
  • Pin-configured LED Powering for LEDs 1 to 6 and for LEDs 7 to 9
  • Solution Area <18 mm2

All trademarks are the property of their respective owners.

  • Three Independent Program Execution Engines for User-defined Programs with Large SRAM Memory for Storing Lighting Programs
  • 9 Programmable Source (High Side) Driver Outputs with 25.5 mA Full-Scale Current, 8-bit Current Setting Resolution and 12-Bit PWM Control Resolution
  • Flexible Grouping Possibility for All 9 Outputs Including GPO into Three Groups with Group PWM and Fade-In/ Fade-Out Controls
  • Built-in LED Test
  • Adaptive Charge Pump with 1x and 1.5x Gain Provides up to 95% LED Drive Efficiency, with Soft Start and Overcurrent/Short Circuit Protection
  • Automatic Power Save Mode; IVDD = 10 µA (typ.)
  • Two Wire, I2C-Compatible, Control Interface
  • Small Application Circuit
  • Pin-configured LED Powering for LEDs 1 to 6 and for LEDs 7 to 9
  • Solution Area <18 mm2

All trademarks are the property of their respective owners.

The LP8501 is an LED driver with 9 outputs, designed to produce versatile lighting effects for mobile devices. The device is equipped with an internal program memory, which allows operation without processor control. Internal program memory is used by three independent program execution engines to produce user-defined lighting effects for the outputs.

A high-efficiency charge pump enables LED driving over full Li-Ion battery voltage range. The excellent efficiency over a wide operating range is achieved by autonomously selecting the best charge pump gain based on LED forward voltage requirements. The LP8501 is able to automatically enter power-save mode when LED outputs are not active, thus lowering idle current consumption down to 10 µA (typ.)

The device has a flexible General Purpose Output (GPO) (which can be used, for example, as a digital control pin for other devices), an INT pin (interrupt function), which can be used to notify the processor, and a Trigger input interface, which allows program execution start without I2C write.

The device requires only four small and low-cost ceramic capacitors. The LP8501 is available in a tiny 25-bump 2.26 mm x 2.26 mm x 0.60 mm DSBGA package (0.4 mm pitch).

The LP8501 is an LED driver with 9 outputs, designed to produce versatile lighting effects for mobile devices. The device is equipped with an internal program memory, which allows operation without processor control. Internal program memory is used by three independent program execution engines to produce user-defined lighting effects for the outputs.

A high-efficiency charge pump enables LED driving over full Li-Ion battery voltage range. The excellent efficiency over a wide operating range is achieved by autonomously selecting the best charge pump gain based on LED forward voltage requirements. The LP8501 is able to automatically enter power-save mode when LED outputs are not active, thus lowering idle current consumption down to 10 µA (typ.)

The device has a flexible General Purpose Output (GPO) (which can be used, for example, as a digital control pin for other devices), an INT pin (interrupt function), which can be used to notify the processor, and a Trigger input interface, which allows program execution start without I2C write.

The device requires only four small and low-cost ceramic capacitors. The LP8501 is available in a tiny 25-bump 2.26 mm x 2.26 mm x 0.60 mm DSBGA package (0.4 mm pitch).
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技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 LP8501 Multi-Purpose 9-Output LED Driver 数据表 (Rev. D) 2013年 8月 12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
应用手册 LP8501 Programming Considerations 2014年 6月 30日
用户指南 LP8501 Evaluation Kit 2014年 6月 26日

设计和开发

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驱动程序或库

LP8501SW-LINUX — 用于 LP8501 的 Linux 驱动程序

The Linux driver supports the LP8501 9 channel LED Driver. The Linux driver supports communication through the I2C bus and interfaces with the LED sub-system.

 

Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

Supported Devices:

  • lp8501

 

Linux Source Files

The files (...)

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评估模块 (EVM) 用 GUI

SNVC096 — LP8501 Evaluation Software

支持的产品和硬件

支持的产品和硬件

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RGB LED 驱动器
LP8501 — 多功能 9 输出 LED 驱动器
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封装 引脚 CAD 符号、封装和 3D 模型
DSBGA (YFQ) 25 Ultra Librarian
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订购和质量

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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