SNVS088F May   2004  – April 2016 LM3704

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Pin Configuration and Functions
  5. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  6. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Reset Output
      2. 6.3.2 Reset Threshold
      3. 6.3.3 Manual Reset Input (MR)
      4. 6.3.4 Power-Fail Comparator (PFI/PFO)
      5. 6.3.5 Low-Line Output (LLO)
    4. 6.4 Device Functional Modes
      1. 6.4.1 RESET Output Low
      2. 6.4.2 RESET Output High
  7. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
      3. 7.2.3 Application Curves
    3. 7.3 System Examples
  8. 8 Power Supply Recommendations
  9. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Layout Example
  10. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Device Nomenclature
    2. 10.2 Community Resources
    3. 10.3 Trademarks
    4. 10.4 Electrostatic Discharge Caution
    5. 10.5 Glossary
  11. 11Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 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

2 Applications

  • Embedded Controllers and Processors
  • Intelligent Instruments
  • Automotive Systems
  • Critical µP Power Monitoring

3 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).

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
LM3704 VSSOP (10) 3.00 mm × 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Typical Application

LM3704 10136903.gif