LED 线性电流驱动器,12 沟道,60 mA, 可控制 I2C

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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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NCV7684DQR2G

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CAD Model

Pb

A

H

P

SSOP-24 NB EP

3

260

REEL

2500

Y

40

60

3

12

$1.2733

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