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高精度可调输出电流的恒流源方案咨询

Other Parts Discussed in Thread: TPS92550

TI是否有合适的恒流源驱动芯片推荐,要求如下:

1、恒流源电流可控,调整分度为1mA;

2、恒流源最大输出电流可达500mA;(此项要求可降低,但不低于300mA);

3、低纹波,恒流源输出稳定,电流抖动不超过100uA;

4、除了恒流源驱动芯片以外,是否可以同时推荐几款高精度的电流感应放电芯片,用于恒流源输出电流采样;