Linear LED Drivers | NCV7681
LED 驱动器，汽车，八路，100 mA
Active, Not Rec
概览
NCV7681 由八个 100 mA 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以及闪烁功能。 带有 NCV7681 的系统设计可实现两种截止编程水平（100% 占空比）和尾部照明（可编程占空比），还可以实施可选的外部 PWM 控制。 LED 亮度可通过两个外部电阻轻松编程（截止编程为绝对电流值，尾部编程为占空比）。使用可选外部镇流器 FET，以便在需要高电流的设计上实现功率分配。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 的低功率应用最有用。 该器件采用裸露焊盘的 SSOP-16 封装。
- Automotive Rear Combination Lamps
- Automotive Daytime Running Lights
- Automotive Fog Lights
- Automotive Center High Mounted Stop Lamps (CHMSL)
- Turn Signal and Other Externally Modulated Applications
- Signature Lamp
- Automobile
- Constant Current Outputs for LED String Drive
- LED Drive Current up to 100mA per Channel
- Open LED String Diagnostic with Open-Drain Output in All Modes
- Slew Rate Control
- Low Dropout Operation
- External Modulation Capable.
- On-Chip 800Hz Tail PWM Dimming
- Single Resistor for Stop Current Set Point
- Single Resistor for Tail Dimming Set Point
- Overvoltage Set Back Power Limitation
- AEC-Q100 Qualified and PPAP Capable
- 16 Lead SOICW with exposed pad
- Improved EMC Performance
- Programmable Latch-Off function on Open String (NCV7681L)
- Overtemperature Fault Reporting
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