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LM3704

ACTIVE

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

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Data sheet

LM3704

ACTIVE
Data sheet Order now

Product details

Number of supplies monitored 2 Threshold voltage 1 (typ) (V) 2.32, 3.08 Features Manual reset capable, PFI/PFO, Undervoltage monitor only Reset threshold accuracy (%) 2 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) None Operating temperature range (°C) -40 to 85
Number of supplies monitored 2 Threshold voltage 1 (typ) (V) 2.32, 3.08 Features Manual reset capable, PFI/PFO, Undervoltage monitor only Reset threshold accuracy (%) 2 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) None Operating temperature range (°C) -40 to 85
VSSOP (DGS) 10 14.7 mm² 3 x 4.9
  • Available Threshold Voltage of 3.08 V and 2.32 V
  • No External Components Required
  • Manual-Reset Input
  • Available in Both Open-Drain and Push-Pull Configuration
  • Reset Time-Out Delay of 200 ms
  • Separate Power-Fail Comparator
  • ±0.5% Reset Threshold Accuracy at Room Temperature
  • ±2% Reset Threshold Accuracy Over Temperature
  • 28-µA VCC Supply Current
  • Available Threshold Voltage of 3.08 V and 2.32 V
  • No External Components Required
  • Manual-Reset Input
  • Available in Both Open-Drain and Push-Pull Configuration
  • Reset Time-Out Delay of 200 ms
  • Separate Power-Fail Comparator
  • ±0.5% Reset Threshold Accuracy at Room Temperature
  • ±2% Reset Threshold Accuracy Over Temperature
  • 28-µA VCC Supply Current

The LM3704 is a feature-rich, easy-to-use voltage supervisor. It is offered in both push-pull and open-drain configuration with a tight 2% accuracy over temperature.

The LM3704 features include a manual reset, low-line output, and power-fail input detection. The power-fail input allows for a configurable second rail to be monitored helping detect upstream failures. The low-line output is used as a second interrupt line to indicate a fall in VCC (1.02 × VRST).

The LM3704 is a feature-rich, easy-to-use voltage supervisor. It is offered in both push-pull and open-drain configuration with a tight 2% accuracy over temperature.

The LM3704 features include a manual reset, low-line output, and power-fail input detection. The power-fail input allows for a configurable second rail to be monitored helping detect upstream failures. The low-line output is used as a second interrupt line to indicate a fall in VCC (1.02 × VRST).
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Type Title Date
* Data sheet LM3704 Voltage Supervisor With Power-Fail Input, Low-Line Output and Manual Reset datasheet (Rev. F) PDF | HTML 26 Apr 2016
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

Design & development

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LM3704X-2P32 PSpice Transient Model

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Simulation model

LM3704X-2P32 Unencrypted PSpice Transient Model

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Simulation model

LM3704X-3P08 PSpice Transient Model

SNVMB75.ZIP (43 KB) - PSpice Model
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Simulation model

LM3704X-3P08 Unencrypted PSpice Transient Model

SNVMB76.ZIP (3 KB) - PSpice Model
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Simulation model

LM3704Y-2P32 PSpice Transient Model

SNVMB72.ZIP (43 KB) - PSpice Model
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Simulation model

LM3704Y-2P32 Unencrypted PSpice Transient Model

SNVMB71.ZIP (3 KB) - PSpice Model
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Simulation model

LM3704Y-3P08 PSpice Transient Model

SNVMB70.ZIP (43 KB) - PSpice Model
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Simulation model

LM3704Y-3P08 Unencrypted PSpice Transient Model

SNVMB69.ZIP (3 KB) - PSpice Model
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