Product details


Number of supplies monitored 1 Threshold voltage 1 (Typ) (V) 0.8, 1.0, 1.1, 1.3, 1.4, 2.0, 2.8, 2.9, 3.0, 3.3, 3.5, 4.6, 5.0, 5.2 Features Manual reset capable, Reset time delay Reset threshold accuracy (%) 1 Output driver type/reset output Active-low, Open-drain, Push-pull Time delay (ms) Programmable, 0 Rating Automotive, Catalog Watchdog timer WDI (sec) None Operating temperature range (C) -40 to 125 open-in-new Find other Supervisor & reset ICs

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 open-in-new Find other Supervisor & reset ICs


  • Operating voltage range : 0.7 V to 6 V
  • Nano supply current : 120 nA (Typical)
  • Fixed threshold voltage (VIT-): 0.8 V to 5.4 V
    • Threshold voltages available in 100mV steps
    • High accuracy: ±0.5% (Typical)
    • Built-in hysteresis (VHYS): 5% (Typical)
  • Reset time delay (tD): capacitor-based programmable (TLV840C, TLV840M)
    • Minimum time delay: 40 µs (typical) without capacitor
  • 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)
  • Wide temperature range: –40°C to +125°C
  • Package: SOT23-5 (DBV)
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The TLV840 family of voltage supervisors or reset ICs can operate at high voltage levels while maintaining very low quiescent current across the whole VDD and temperature range. TLV840 offers best combination of low power consumption, high accuracy and low propagation delay (tp_HL= 30 µs typical).

Reset output signal is asserted when the voltage at VDD drops below the negative voltage threshold (VIT-). Reset signal is cleared when VDD rise 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 and TLV840M. For a minimum reset delay time the CT pin can be left floating. TLV840N does not offer a programmable delay and offers fixed reset delay timing options: 40 µs, 2 ms, 10 ms, 30 ms, 50 ms, 80 ms, 100 ms, 150 ms, 200 ms.

Additional features: Low power-on reset voltage (VPOR), built-in glitch immunity protection for VDD, built-in hysteresis, low open-drain output leakage current (Ilkg(OD)). TLV840 is a perfect voltage monitoring solution for industrial applications and battery-powered / low-power applications.

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Technical documentation

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Type Title Date
* Data sheet TLV840 Low Voltage Supervisor with Adjustable Reset Time Delay and Manual Reset datasheet (Rev. C) Aug. 13, 2020
Technical article Three reasons to add a voltage supervisor to your next wearable power design Jun. 17, 2021
Application note Back-up Power Supply Switchover with Supply Voltage Supervisor & Power & Power M Apr. 09, 2020
Application note Programmable Push-Button, Pulse Detector, and Pulse Generator Solutions Mar. 10, 2020
Selection guide Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) Feb. 28, 2020
User guide TLV840EVM Voltage Supervisor User's Guide Feb. 13, 2020
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019

Design & development

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Hardware development

document-generic User guide

The TLV840 evaluation module (EVM) is designed to evaluate the performance of the TLV840 product, which is a 5-pin voltage supervisor and reset IC. TLV840 offers operation up to 6 V, while maintaining low quiescent current of 1.2 µA (max) in addition to 2% maximum accuracy.

TLV840EVM supports all (...)

  • Package: 5-pin SOT-23
  • Programmable reset delay
  • Fixed delay
  • Open-drain/push-pull output topology
  • Manual reset

Design tools & simulation

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PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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SOT-23 (DBV) 5 View options

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