SBOS300C february   2004  – april 2023 TLV3011 , TLV3011B , TLV3012 , TLV3012B

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Ratings- TLV3011 and TLV3012
    2. 6.2  Absolute Maximum Ratings - TLV3011B and TLV3012B
    3. 6.3  ESD Ratings
    4. 6.4  Thermal Information - TLV3011 and TLV3012
    5. 6.5  Thermal Information- TLV3011B and TLV3012B
    6. 6.6  Recommended Operating Conditions
    7. 6.7  Electrical Characteristics - TLV3011 and TLV3012
    8. 6.8  Switching Characteristics - TLV3011 and TLV3012
    9. 6.9  Electrical Characteristics - TLV3011B and TLV3012B
    10. 6.10 Switching Characteristics - TLV3011B and TLV3012B
  7. 7 Typical Characteristics - TLV3011 and TLV3012
  8. 8 Typical Characteristics - TLV3011B and TLV3012B
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
    4. 9.4 Device Functional Modes
      1. 9.4.1 Open Drain Output (TLV3011 and TLV3011B)
      2. 9.4.2 Push-Pull Output (TLV3012 and TLV3012B)
      3. 9.4.3 Voltage Reference
      4. 9.4.4 TLV3011B and TLV3012B Fail-Safe inputs
      5. 9.4.5 TLV3011B and TLV3012B Power On Reset
  10. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 External Hysteresis
      2. 10.1.2 TLV3011B and TLV3012B Hysteresis
    2. 10.2 Typical Application
      1. 10.2.1 Under-Voltage Detection
        1. 10.2.1.1 Design Requirements
        2. 10.2.1.2 Detailed Design Procedure
        3. 10.2.1.3 Application Curve
    3. 10.3 System Examples
      1. 10.3.1 Power-On Reset
      2. 10.3.2 Relaxation Oscillator
    4. 10.4 Power Supply Recommendations
    5. 10.5 Layout
      1. 10.5.1 Layout Guidelines
      2. 10.5.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Receiving Notification of Documentation Updates
    2. 11.2 Support Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

10.3.1 Power-On Reset

The reset circuit shown in Figure 10-5 provides a time-delayed release of reset to the MSP430™ microcontroller. Operation of the circuit is based on a stabilization time constant of the supply voltage, rather than on a predetermined voltage value. The negative input is a reference voltage created by the internal voltage reference. The positive input is an RC circuit that provides a power-up delay. When power is applied, the output of the comparator is low, holding the processor in the reset condition. Only after allowing time for the supply voltage to stabilize does the positive input of the comparator become higher than the negative input, resulting in a high output state, releasing the processor for operation. The stabilization time required for the supply voltage is adjustable by the selection of the RC component values. Use of a lower-valued resistor in this portion of the circuit does not increase current consumption, because no current flows through the RC circuit after the supply has stabilized.

GUID-19CC915A-B6F4-4719-8E2E-1CA0EF4A6124-low.gif Figure 10-5 TLV3012 Configured as Power-Up Reset Circuit for the MSP430™ Microcontroller

The reset delay needed depends on the power-up characteristics of the system power supply. R1 and C1 are selected to allow enough time for the power supply to stabilize. D1 provides rapid reset if power is lost. In this example, the R1 × C1 time constant is 10 ms.