TPS1HC30-Q1
ZHCSP75A –JULY 2022 –REVISED DECEMBER 2022
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8.2 Functional Block Diagram
VOUT
RILIM
8.3 Feature Description
8.3.1 Accurate Current Sense
The high-accuracy current-sense function is internally implemented, which allows a better real-time monitoring
effect and more-accurate diagnostics without further calibration. A current mirror is used to source 1 / KSNS of the
load current, flowing out to the external resistor between the SNS pin and GND, and reflected as voltage on the
SNS pin.
KSNS is the ratio of the output current and the sense current. The accuracy values of KSNS quoted in the
electrical characteristics do take into consideration temperature and supply voltage. Each device was internally
calibrated while in production, so post-calibration by users is not required in most cases.
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