Low Supply Current: 8 µA (Max) Supply Voltage: 3 V to 5.5 V Output FET Provides Down Translation Small Package: SOT-563 Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II ESD Performance 2500-V Human-Body Model (IEC61340-3-1:2002 Level 2) 250-V Machine Model (IEC61340-3-2 Level M2) 1500-V Charged-Device Model JESD22-C101-A Level III) DESCRIPTION/ORDERING INFORMATION The TXS03121 is a comparator designed for battery monitoring applications. It can be operated with a voltage of 3 V to 5.5 V. The reference voltage is applied to the –IN terminal, whereas the voltage to be monitored is connected to +IN. When the voltage at +IN is greater than the voltage at –IN, the output FET is turned On. When the voltage at +IN is less than the voltage at –IN, the output FET is turned Off. The source (S) of the output FET can be connected to 1.1 V to 3.6 V, which allows the output signal to be level translated to another voltage value. The voltage at V+ must be greater than or equal to the voltage at S. The voltage at S must be greater than or equal to the voltage at D (V+ VS VD).