LM3704 Reset IC / Voltage Supervisor IC with Power Fail Input, Low Line Output and Manual Reset | TI.com

LM3704 (ACTIVE) Reset IC / Voltage Supervisor IC with Power Fail Input, Low Line Output and Manual Reset

 

Description

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).

Features

  • 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

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Parametrics

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Part number Order Threshold voltage 1 (Typ) (V) Number of supplies monitored VCC (Max) (V) VCC (Min) (V) Output driver type/reset output Time delay (ms) Features Rating Operating temperature range (C) Watchdog timer WDI (sec)
LM3704 Order now 2.32
3.08    
2     5.5     1     Active-low
Open-drain
Push-pull    
28
200    
PFI/PFO     Catalog     -40 to 85     None    
LM3710 Order now 2.32
3.08
4.63    
2     5.5     1     Active-low
Open-drain
Push-pull    
28
200    
Watchdog timer
PFI/PFO    
Catalog     -40 to 85     0.1
1.6