SLVSFN9A September 2020 – August 2021 TPS65988DK
PRODUCTION DATA
The TPS65988DK reverse current protection has two modes of operation: Comparator Mode and Ideal Diode Mode. Both modes disable the power switch in cases of reverse current. The comparator protection mode is enabled when the switch is operating as a source, while the ideal diode protection is enabled while operating as a sink.
In the Comparator mode of reverse current protection, the power switch is allowed to behave resistively until the current reaches the amount calculated in Equation 1 and then blocks reverse current from VBUS to PP_HV. Figure 8-11 shows the diode behavior of the switch with comparator mode enabled.
In the Ideal Diode mode of reverse current protection, the switch behaves as an ideal diode and blocks reverse current from PP_HV to VBUS. Figure 8-12 shows the diode behavior of the switch with ideal diode mode enabled.