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Texas Instruments TLV840/TLV840-Q1 Supervisors (Reset ICs)

Texas Instruments TLV840/TLV840-Q1 Low-Voltage Supervisors (Reset ICs) can operate at high voltage levels while maintaining a very low quiescent current across the whole VDD and temperature range. TLV840/TLV840-Q1 offers a great combination of low power consumption, high accuracy, and low propagation delay (tp_HL = 30µs typical).

Reset output signal is asserted when the voltage at VDD drops below the negative voltage threshold (VIT-). The reset signal is cleared when VDD rises above VIT- plus hysteresis (VHYS), and the reset time delay (tD) expires. Reset time delay can be programmed by connecting a capacitor between the CT pin and ground for TLV840C/TLV840C-Q1 and TLV840M/TLV840M-Q1. The CT pin can be left floating for a minimum reset delay time. Texas Instruments TLV840N/TLV840N-Q1 does not offer a programmable delay and offers fixed reset delay timing options of 40µs, 2ms, 10ms, 30ms, 50ms, 80ms, 100ms, 150ms, 200ms.

Additional features include low power-on reset voltage (VPOR), built-in glitch immunity protection for VDD, built-in hysteresis, and low open-drain output leakage current (Ilkg(OD)). TLV840/TLV840-Q1 is a perfect voltage monitoring solution for industrial, battery-powered, low-power applications. The TLV840-Q1 devices are AEC-Q100 qualified for automotive applications.

Features

  • 0.7V to 6V operating voltage range
  • 120nA (typical) nano supply current
  • 0.8V to 5.4V fixed threshold voltage (VIT-)
    • Threshold voltages available in 100mV steps
    • ±0.5% (typical) high accuracy
    • 5% (typical) built-in hysteresis (VHYS)
  • Reset time delay (tD) (capacitor-based programmable (TLV840C, TLV840M))
    • 40µs (typical) without capacitor minimum time delay
  • Active-low manual reset (MR) (TLV840M)
  • Four output topologies
    • TLV840xxDL - open-drain, active-low (RESET)
    • TLV840xxPL - push-pull, active-low (RESET)
    • TLV840xxDH - open-drain, active-high (RESET)
    • TLV840xxPH - push-pull, active-high (RESET)
  • –40°C to +125°C wide temperature range
  • SOT23-5 (DBV) package

Applications

  • Motor drives
  • Factory automation and control
  • Home theater and entertainment
  • Electronic Point of Sale
  • Grid infrastructure
  • Datacenter and enterprise computing
  • Multifunction printer

Datasheets

Functional Block Diagram

Block Diagram - Texas Instruments TLV840/TLV840-Q1 Supervisors (Reset ICs)

Related Development Tool

Texas Instruments TLV840EVM Supervisor Evaluation Module (EVM)

Evaluates the performance of the TLV840, a 5-pin voltage supervisor and reset IC.

Learn Moreabout Texas Instruments TLV840EVM Supervisor Evaluation Module (EVM) View Productsrelated to Texas Instruments TLV840EVM Supervisor Evaluation Module (EVM)
Published: 2020-10-27 | Updated: 2025-04-09