LM3710

ACTIVE

Voltage supervisor & reset IC with power fail input, low-line output, manual reset & watchdog timer

Product details

Number of supplies monitored 2 Threshold voltage 1 (typ) (V) 2.32, 3.08, 4.63 Features Manual reset capable, PFI/PFO, Timeout watchdog, Undervoltage monitor only, Watchdog timer Reset threshold accuracy (%) 0.5 Iq (typ) (mA) 0.028 Output driver type/reset output Active-low, Open-drain, Push-Pull Time delay (ms) 28, 200 Supply voltage (min) (V) 1 Supply voltage (max) (V) 5.5 Rating Catalog Watchdog timer WDI (s) 0.1, 1.6 Operating temperature range (°C) -40 to 85
Number of supplies monitored 2 Threshold voltage 1 (typ) (V) 2.32, 3.08, 4.63 Features Manual reset capable, PFI/PFO, Timeout watchdog, Undervoltage monitor only, Watchdog timer Reset threshold accuracy (%) 0.5 Iq (typ) (mA) 0.028 Output driver type/reset output Active-low, Open-drain, Push-Pull Time delay (ms) 28, 200 Supply voltage (min) (V) 1 Supply voltage (max) (V) 5.5 Rating Catalog Watchdog timer WDI (s) 0.1, 1.6 Operating temperature range (°C) -40 to 85
VSSOP (DGS) 10 14.7 mm² 3 x 4.9
  • Standard Reset Threshold Voltage: 3.08V
  • Custom Reset Threshold Voltages: For other voltages between 2.2V and 5.0V in 10mV increments, contact TI
  • No External Components Required
  • Manual-Reset Input
  • RESET (LM3710) or RESET (LM3711) Outputs
  • Precision Supply Voltage Monitor
  • Factory Programmable Reset and Watchdog Timeout Delays
  • Separate Power Fail Comparator
  • Available in DSBGA Package for Minimum Footprint
  • ±0.5% Reset Threshold Accuracy at Room Temperature
  • ±2% Reset Threshold Accuracy Over Temperature Extremes
  • Reset Assertion Down to 1V VCC (RESET Option Only)
  • 28 µA VCC Supply Current

All trademarks are the property of their respective owners.

  • Standard Reset Threshold Voltage: 3.08V
  • Custom Reset Threshold Voltages: For other voltages between 2.2V and 5.0V in 10mV increments, contact TI
  • No External Components Required
  • Manual-Reset Input
  • RESET (LM3710) or RESET (LM3711) Outputs
  • Precision Supply Voltage Monitor
  • Factory Programmable Reset and Watchdog Timeout Delays
  • Separate Power Fail Comparator
  • Available in DSBGA Package for Minimum Footprint
  • ±0.5% Reset Threshold Accuracy at Room Temperature
  • ±2% Reset Threshold Accuracy Over Temperature Extremes
  • Reset Assertion Down to 1V VCC (RESET Option Only)
  • 28 µA VCC Supply Current

All trademarks are the property of their respective owners.

The LM3710/LM3711 series of microprocessor supervisory circuits provide the maximum flexibility for monitoring power supplies and battery controlled functions in systems without backup batteries. The LM3710/LM3711 series are available in VSSOP-10 and 9-bump DSBGA packages.

Built-in features include the following:

Reset: Reset is asserted during power-up, power-down, and brownout conditions. RESET is ensured down to VCC of 1.0V.

Manual Reset Input: An input that asserts reset when pulled low.

Power-Fail Input: A 1.225V threshold detector for power fail warning, or to monitor a power supply other than VCC.

Low Line Output: This early power failure warning indicator goes low when the supply voltage drops to a value which is 2% higher than the reset threshold voltage.

Watchdog Timer: The WDI (Watchdog Input) monitors one of the µP's output lines for activity. If no output transition occurs during the watchdog timeout period, reset is activated.

The LM3710/LM3711 series of microprocessor supervisory circuits provide the maximum flexibility for monitoring power supplies and battery controlled functions in systems without backup batteries. The LM3710/LM3711 series are available in VSSOP-10 and 9-bump DSBGA packages.

Built-in features include the following:

Reset: Reset is asserted during power-up, power-down, and brownout conditions. RESET is ensured down to VCC of 1.0V.

Manual Reset Input: An input that asserts reset when pulled low.

Power-Fail Input: A 1.225V threshold detector for power fail warning, or to monitor a power supply other than VCC.

Low Line Output: This early power failure warning indicator goes low when the supply voltage drops to a value which is 2% higher than the reset threshold voltage.

Watchdog Timer: The WDI (Watchdog Input) monitors one of the µP's output lines for activity. If no output transition occurs during the watchdog timeout period, reset is activated.

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Technical documentation

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Type Title Date
* Data sheet LM3710/LM3711 Micro Sup Cir w/Pwr Fail In, LoLne Out, Man Rst & Watchdog Timer datasheet (Rev. E) 21 Mar 2013
Selection guide Voltage Supervisors (Reset ICs) Quick Reference Guide (Rev. H) 28 Feb 2020
E-book Voltage Supervisor and Reset ICs: Tips, Tricks and Basics 28 Jun 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Technical article Selecting voltage detectors, supervisors, and reset ICs for system safety: part 2 PDF | HTML 21 Oct 2016

Design & development

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Simulation model

LM3710X-3P08 PSpice Transient Model

SNVMB96.ZIP (52 KB) - PSpice Model
Simulation model

LM3710X-3P08 Unencrypted PSpice Transient Model

SNVMB97.ZIP (3 KB) - PSpice Model
Simulation model

LM3710X-4P63 PSpice Transient Model

SNVMB98.ZIP (52 KB) - PSpice Model
Simulation model

LM3710X-4P63 Unencrypted PSpice Transient Model

SNVMB99.ZIP (3 KB) - PSpice Model
Simulation model

LM3710Y-2P32 PSpice Transient Model

SNVMBA0.ZIP (51 KB) - PSpice Model
Simulation model

LM3710Y-2P32 Unencrypted PSpice Transient Model

SNVMBA1.ZIP (3 KB) - PSpice Model
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