STMicroelectronics ALED7707 LED 驱动器
意法半导体 ALED7707 LED 驱动器 内置 一个汽车级（达到 AEC Q100 标准）单片升压转换器， 以及专为 LCD 背光面板 LED 阵列供电的六个受控电流产生器（行）。
特性
- Boost section
- 4.5V to 36V input voltage range
- Internal power MOSFET
- Internal +5V LDO for device supply
- Up to 36V output voltage
- Constant frequency peak current-mode control
- 250kHz to 1MHz adjustable switching frequency
- External synchronization for multi-device application
- Pulse skip power saving mode at light load
- Programmable soft-start
- Programmable overvoltage protection
- Stable with ceramic output capacitors
- Thermal shutdown
- Backlight driver section
- Six rows with 85mA maximum current capability (adjustable)
- Rows disable option
- Less than 10µs minimum dimming on-time
- ±3% current matching between rows
- LED failure (open and short-circuit) detection
- AEC-Q100 qualification
应用
- Infotainment
- LCD backlights
- Daytime running lights
- Car interior/exterior lights
- Dashboard backlights
Development Tool
发布日期: 2015-07-20
| 更新日期: 2022-03-11