Linear LED Drivers | NCV7684
LED 线性电流驱动器，12 沟道，60 mA， 可控制 I2C
Active, Not Rec
概览
NCV7684 由 12 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。NCV7684 通过 I2C 串行接口使用可编程脉宽调制 (PWM)，因此可实现 128 个差分电流水平。该器件可用于使用 I2C 总线的微控制器应用，或独立应用，在此类应用中可选择 2 种不同的配置设置。该集成电路还为高达 1 mA 的应用提供 3.3 V 的电压参考。LED 亮度使用外部电阻进行轻松编程。每个沟道都有一个内部电路来检测开路负载情况，且具有可选的自动恢复模式。如果一个驱动器为开路负载情况，所有其他沟道则可能根据可编程位设置进行关断。
- Dashboard Applications
- Rear Combination Lamps (RCL)
- Daytime Running Lights (DRL)
- Fog Lights
- Center High Mounted Stop Lamps (CHMSL) Arrays
- Turn Signal and other Externally Modulated Applications
- Automotive
- 12 programmable Current Sources Up to 60 mA
- Common PWM Gain Control via I2C
- On−chip 125, 250, or 500 Hz PWM
- Open LED String Diagnostic
- Low Dropout Operation for Pre−Regulator Applications
- Single Resistor for Current Set Point
- Voltage Reference 3.3 V / 1 mA
- 8 bits I2C Interface with CRC8 Error Detection
- OTP Bank for Stand−Alone Operation (2 Configurations)
- Detection and Protection Against Open Load and Under−Voltage
- Over Temperature Detection and Protection
- Low Emission with Spread Spectrum Oscillator
- AEC Q100 Qualified
- SSOP24−EP Packaging
- This is a Pb−Free Device
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