SLVSG89B April   2021  – January 2024 TPS3899-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Nomenclature
  6. 5 Pin Configuration and Functions
  7. 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 Timing Diagrams
    8. 6.8 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 VDD Hysteresis
      2. 7.3.2 User-Programmable Sense and Reset Time Delay
      3. 7.3.3 RESET/RESET Output
      4. 7.3.4 SENSE Input
        1. 7.3.4.1 Immunity to SENSE Pin Voltage Transients
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Operation (VDD > VDD(min))
      2. 7.4.2 Above Power-On-Reset But Less Than VDD(min) (VPOR < VDD < VDD(min))
      3. 7.4.3 Below Power-On-Reset (VDD < VPOR)
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design 1: Dual Rail Monitoring with Power-Up Sequencing
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
    3. 8.3 Application Curves
    4. 8.4 Power Supply Recommendations
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
      2. 8.5.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 Device Nomenclature
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

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

3 Description

The TPS3899-Q1 is a nano-power, precision voltage supervisor with ±0.5% threshold accuracy and programmable sense and reset time delay in a 6-pin space saving 1.5mm × 1.5mm WSON package. The TPS3899-Q1 is a feature-rich voltage supervisor that offers the smallest total solution size in its class. Built-in hysteresis along with programmable delay prevent false reset signals when monitoring a voltage rail or push button signals.

The separate VDD and SENSE pins allow for the redundancy sought by high-reliability systems. SENSE is decoupled from VDD and can monitor rail voltages other than VDD. Optional use of external resistors are supported by the high impedance input of the SENSE pin. Both CTS and CTR provide delay adjustability on the rising and falling edges of the RESET signals. CTS also functions as a debouncer by ignoring voltage glitches on the monitored voltage rails and operates as a "manual reset" that can be used to force a system reset.

The precision performance, best in-class features in a compact form factor, makes the TPS3899-Q1 an ideal solution for wide ranging automotive and battery-powered / low-power applications. The device is fully specified over a temperature range of
–40°C to +125°C (TA).

Device Information
PART NUMBER PACKAGE (1) BODY SIZE (NOM)
TPS3899-Q1 WSON (6) DSE 1.5mm × 1.5mm
(1) For all available packages, see the orderable addendum at the end of the data sheet
GUID-20210305-CA0I-ZJLN-FQL5-CNW4NG7QCPRQ-low.svg Typical Application Circuit