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tps61196背光电流调节范围

Other Parts Discussed in Thread: TPS61196

想使用tps61196做一款背光调节芯片,但spec写此稳压器 提供 50mA 至 400mA 范围内可调的 LED 电流 ILED=1.229*3992/R ,有时候背光电流小于50mA;如何实现ISET电阻的设置能让这款芯片输出范围在1mA~200mA