SNOSDM1 December 2025 TLV6722
PRODUCTION DATA
The TLV672x INT/RSTn and LPWn/PRSn(/ePPS) pins are fail-safe up to 3.465V independent of H_VCC and M_VCC. Fail-safe is defined as maintaining the same input impedance when H_VCC and M_VCC are unpowered or within the recommended operating ranges. This is possible since the inputs have no high-side ESD clamps to H_VCC or M_VCC. The voltages at the fail-safe inputs can be driven to any value between 0V to 3.465V, even while H_VCC and M_VCC are zero or ramping up or down.
The impedance looking into the INT/RSTn and LPWn/PRSn(/ePPS) pins are going to be determined by R2, R3, R13, R15, and C3 due to those passives being connected to the INT/RSTn and LPWn/PRSn(/ePPS) nodes.
The M_INT pin is not fail-safe. The M_INT pin is a digital input pin with ESD diode clamps to both M_VCC and GND. The logic high and logic low levels are for the M_INT pin are defined by the voltage supplied on M_VCC. Because M_INT is a digital input pin, the M_INT pin must be driven to a well-defined voltage for proper operation of the TLV672x.