Linear LED Drivers | NCV7680
用于汽车 LED 后尾组合灯的 LED 驱动器
Obsolete
概览
NCV7680 由八个线性可编程恒定电流源组成。该零部件适用于汽车应用中基于 LED 的后尾组合灯调节和控制。带有 NCV7680 的系统设计可实现两种亮度水平，一个用于截止，一个用于尾部照明，还可以实施可选的 PWM 控制。单独的 LED 亮度水平可轻松编程 （截止电流值、尾部占空比值），可选的外部镇流器 FET 可在需要高电流的设计上实现配电。回退功率限制降低了过电压条件下的驱动电流。这对于不使用外部 FET 的低电流应用最有用。
- Automotive Rear Combination Lamps
- Daytime Running Lights
- Fog Lights
- Center High Mounted Stop Lamps
- Turn Signal and Other Externally Modulated Applications
- LCD Backlighting
- Lighting Module
- Constant Current Outputs for LED String Drive
- LED Drive Current up to 75mA per Channel
- Open LED String Diagnostic with Open-Drain Output
- Slew Rate Control
- Low Dropout Operation
- External Modulation Capable
- On-chip 1 kHz Tail PWM Dimming
- Stop Current Set Point programmability
- Tail Dimming Set Point programmability
- Overvoltage Set Back Power Limitation
- Pb-Free
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