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TXS03121
  • TXS03121

TXS03121

ACTIVE

Micropower, single comparator

Texas Instruments TXS03121 Product Info

1 April 2026 0

Parameters

Number of channels

1

Output type

Open-collector, Open-drain

Propagation delay time (µs)

0.7

Vs (max) (V)

5.5

Vs (min) (V)

2.5

Rating

Catalog

Iq per channel (typ) (mA)

0.005

Vos (offset voltage at 25°C) (max) (mV)

10

Rail-to-rail

In to V-

Operating temperature range (°C)

-40 to 85

Input bias current (±) (max) (nA)

500

VICR (max) (V)

5.5

VICR (min) (V)

0.8

Package

SOT-5X3 (DRL)-6-2.56 mm² 1.6 x 1.6

Features

  • Low Supply Current: 8 µA (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)

  • Low Supply Current: 8 µA (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

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).

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).