LP8860-Q1
- Qualified for automotive applications
- AEC-Q100 qualified with the following results:
- Device temperature grade 1: –40°C to +125°C ambient operating temperature
- Input voltage operating range 3V to 48V
- Four high-precision current sinks
- Current matching 0.5% (typical)
- LED string current up to 150mA per channel
- Dimming ratio > 13 000:1 with external PWM brightness control
- 16-bit dimming control with SPI or I2C
- Supports display mode (global dimming) and cluster mode (Independent dimming)
- Hybrid PWM and current dimming for higher LED drive optical efficiency
- Synchronization for LED PWM frequency
- Boost controller with programmable switching frequency 100kHz to 2.2MHz and spread-spectrum option for lower EMI
- Boost synchronization input
- Power-line FET control for inrush current protection and standby energy Saving
- Automatic LED current reduction with external temperature sensor
- Extensive fault diagnostics
The LP8860-Q1 is an automotive high-efficiency LED driver with boost controller. It has 4 high-precision current sinks that can be controlled by a PWM input signal, an SPI or I2C master, or both.
The boost converter has adaptive output voltage control based on the headroom voltages of the LED current sinks. This feature minimizes the power consumption by adjusting the voltage to the lowest sufficient level in all conditions. A wide-range adjustable frequency allows the LP8860-Q1 to avoid disturbance for AM radio band.
The LP8860-Q1 supports built-in hybrid PWM and current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency. Phase-shift PWM reduces audible noise and output ripple.
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技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | LP8860-Q1 Low-EMI Automotive LED Driver with Four 150mA Channels datasheet (Rev. H) | PDF | HTML | 2025/4/28 | ||
| 應用說明 | Selecting the Correct LP8860-Q1 EEPROM Version (Rev. D) | PDF | HTML | 2020/9/4 | |||
| 應用說明 | Some Guidelines and Tips for the LED Driver Application | 2019/8/14 | ||||
| 應用說明 | LP8860-Q1 Boost Compensation Registers (Rev. A) | 2019/8/12 | ||||
| 應用說明 | LP8860-Q1 Electrical Overstress Analysis and Recommendation | 2018/8/7 | ||||
| 應用說明 | Automotive Cold Crank Operation with LP8860-Q1 | 2018/4/4 | ||||
| 應用說明 | Using the LP8860-Q1 for Low EMI Automotive Designs | 2018/2/15 | ||||
| 白皮書 | Powering automotive displays to create interactive driving experiences | 2017/12/21 | ||||
| 應用說明 | LP8860-Q1 End-of-Line Programming guide of EEPROM | 2017/12/14 | ||||
| 應用說明 | PCB Layout Guideline for Automotive LED Drivers | 2017/4/7 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
LP8860SW-LINUX — 適用於 LP8860-Q1 的 Linux 驅動程式
The Linux driver supports the LP8860 4-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:
- lp8860
Linux Source Files
The files (...)
SNVC156 — LP8860EVM GUI
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HLQFP (VFP) | 32 | Ultra Librarian |
訂購與品質
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。