SLVUBU6A April 2020 – June 2020 TPS274160
For version B, high-accuracy current sensing allows better real-time monitoring effect and more accurate diagnostics without further calibration. It provides the real-time output current monitoring. A current mirror is used to source 1/K of the load current, and is reflected as VCS = ICS × RCS. Ensure the CS voltage is in the linear region (0–4 V) when in normal operation.
Also, when fault condition happens, it works as a diagnostics report pin. When open load/short to battery happen in on-state, VCS almost equals to zero. When current limit, thermal shutdown/swing, open load/ short to battery in off-state happen, the voltage is clamped at VCS,H.