1FEATURES

· Low Supply Current: 8 mA (Max)

· Supply Voltage: 2.5 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 (JESD-A114E)

– 250-V Machine Model

(EIA/JESD A115-A)

– 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

2.5 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).