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https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/689572/tlv431a-minimum-io-of-constant-current-sink
大家好、：
与数据表中的电路一样、最小 IO 是多少？ 它能否低于1mA？
大家好、
Kai 的陈述是正确的。 通过将 Rs 的值增加到大约2.5k、IO 可以为1mA。 此原理图中的电流受晶体管限制、但在这个低电流水平上应该没有问题。
-Marcoo
