LP8501
- 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
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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).
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 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) | 2013-8-12 | |||
| 白皮书 | 常见 LED 功能和 LED 驱动器设计注意事项 | 英语版 | 2020-9-21 | |||
| 应用手册 | How to Select a RGB LED Driver | 2019-8-8 | ||||
| 应用手册 | LP8501 Programming Considerations | 2014-6-30 | ||||
| 用户指南 | LP8501 Evaluation Kit | 2014-6-26 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
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 (...)
SNVC096 — LP8501 Evaluation Software
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| DSBGA (YFQ) | 25 | Ultra Librarian |
订购和质量
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