ZHCSIV1F September 2018 – February 2023 TPS1663
PRODUCTION DATA
The TPS1663x devices feature an accurate ± 2% adjustable undervoltage lockout functionality. When the voltage at UVLO pin falls below V(UVLOF) during input undervoltage fault, the internal FET quickly turns off and FLT is asserted. The UVLO comparator has a hysteresis of 78 mV (typical). To set the input UVLO threshold, connect a resistor divider network from IN supply to UVLO terminal to GND as shown in Figure 9-3. If the Undervoltage Lockout function is not needed, the UVLO terminal must be connected to the IN terminal. UVLO terminal must not be left floating.