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).
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | LP8501 Multi-Purpose 9-Output LED Driver datasheet (Rev. D) | 2013年 8月 12日 | |
White paper | Common LED Functions and LED Driver Design Considerations | 2020年 9月 21日 | ||
Application note | How to Select a RGB LED Driver | 2019年 8月 8日 | ||
Application note | LP8501 Programming Considerations | 2014年 6月 30日 | ||
User guide | LP8501 Evaluation Kit | 2014年 6月 26日 |
設計與開發
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LP8501SW-LINUX — 適用於 LP8501 的 Linux 驅動程式
Linux Mainline Status
Available in Linux Main line: Yes
Available through git.ti.com: N/A
Supported Devices:
- lp8501
Linux Source Files
The files (...)
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
封裝 | 引腳 | 下載 |
---|---|---|
DSBGA (YFQ) | 25 | 檢視選項 |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。