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With 36 programmable LED current channels, the AL5887Q from Diodes drives up to 12 RGB configurations or 36 individual LEDs. The automotive-compliant linear driver provides a hardware-selectable I2C or SPI digital interface, along with an internal 12-bit PWM for precise color and brightness control. Designers can create dynamic lighting patterns and rich color depths for both interior and exterior lamps.
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An external resistor sets the output current for all 36 channels, with each channel’s current digitally configurable up to 70 mA without the need for paralleling. An automatic power-saving mode reduces current to 15 µA, and a quiescent shutdown mode cuts it to 1 µA when all LEDs are off for more than 30 ms, minimizing energy draw from the car’s battery.
The AL5887Q includes multiple protection features, such as an open-drain fault pin with diagnostic fault registers and individual fault mask registers. It also provides overtemperature protection with a pre-OTP warning.
The AEC-Q100 qualified AL5887Q driver costs $1.13 each in lots of 1000 units.
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