SBVS240C November   2014  – February 2019 TPS3701

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Typical Application
      2.      Typical Error vs Junction Temperature
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Inputs (INA, INB)
      2. 7.3.2 Outputs (OUTA, OUTB)
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Operation (VDD > UVLO)
      2. 7.4.2 Undervoltage Lockout (V(POR) < VDD < UVLO)
      3. 7.4.3 Power-On-Reset (VDD < V(POR))
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Window Voltage Detector Considerations
      2. 8.1.2 Input and Output Configurations
      3. 8.1.3 Immunity to Input Pin Voltage Transients
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

7.1 Overview

The TPS3701 combines two comparators (referred to as A and B) and a precision reference for over- and undervoltage detection. The TPS3701 features a wide supply voltage range (1.8 V to 36 V) and high-accuracy window threshold voltages of 400 mV (0.75% over temperature) with built-in hysteresis. The outputs are rated to 25 V and can sink up to 10 mA.

Set each input pin (INA, INB) to monitor any voltage above 0.4 V by using an external resistor divider network. Each input pin has very low input leakage current, allowing the use of large resistor dividers without sacrificing system accuracy. To form a window voltage detector, use the two input pins and three resistors (see the Window Voltage Detector Considerations section). In this configuration, the TPS3701 is designed to assert the output signals when the monitored voltage is within the window band. Each input can also be used independently. The relationship between the inputs and the outputs is shown in Table 1. Broad voltage thresholds are supported that enable the device to be used in a wide array of applications.

Table 1. Truth Table

CONDITION OUTPUT STATUS
INA > VIT+(INA) OUTA high Output A high impedance
INA < VIT–(INA) OUTA low Output A asserted
INB > VIT+(INB) OUTB low Output B asserted
INB < VIT–(INB) OUTB high Output B high impedance