The A6266 is a boost converter controller that provides a programmable constant current output to drive high-power LEDs in series. The LEDs that drive in series ensure the same current and uniform brightness. For automotive applications, it can drive up to 15 LEDs at up to 1 A for optimized performance.
The A6266 provides an extremely cost-effective solution using an external logic-level MOSFET and a minimal amount of additional external components. The maximum LED current can be set with a single external induction resistor and can be modified using a current reference input. Direct PWM control can be achieved by enabling input, and it also has a shutdown mode.
Integrated diagnostics and dual fault outputs indicate in the event of undervoltage, chip overheating, open output, LED short, and LED undercurrent, and can be configured to provide power short-circuit and ground short-circuit protection for LED connections. With the unique feature of detecting one or more shorted LEDs.
The device is available in a 16-pin TSSOP package (suffix LP) with an exposed heat sink mounted. It is packaged as a lead-free (Pb) product with a 100% matte tin plated pin frame.
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汽车高功率 LED 照明系统
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雾灯、倒车灯、白天行驶灯
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汽车前灯
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AEC Q100 0 级汽车适用
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恒流 LED 驱动器
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5 至 50 V 电源电压
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升压模式
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驱动多达 15 个串联 LED
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可编程的开关频率为 100 至 700 kHz
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LED 过压开路指示和保护
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单个和多个 LED 短路指示
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LED 接地短路和供电保护
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PWM 调光控制