SLVSHW9 August   2024 TPS62916-Q1

ADVANCE INFORMATION  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Electrical Characteristics
    5. 5.5 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1  Smart Config (S-CONF)
      2. 6.3.2  Device Enable (EN/SYNC)
      3. 6.3.3  Device Synchronization (EN/SYNC)
      4. 6.3.4  Spread Spectrum Modulation
      5. 6.3.5  Output Discharge
      6. 6.3.6  Undervoltage Lockout (UVLO)
      7. 6.3.7  Power-Good Output
      8. 6.3.8  Noise Reduction and Soft-Start Capacitor (NR/SS)
      9. 6.3.9  Current Limit and Short-Circuit Protection
      10. 6.3.10 Thermal Shutdown
    4. 6.4 Device Functional Modes
      1. 6.4.1 Fixed Frequency Pulse Width Modulation
      2. 6.4.2 Low Duty Cycle Operation
      3. 6.4.3 High Duty Cycle Operation (100% Duty Cycle)
      4. 6.4.4 Second Stage L-C Filter Compensation (Optional)
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Applications
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Custom Design With WEBENCH® Tools
        2. 7.2.2.2 External Component Selection
          1. 7.2.2.2.1 Switching Frequency Selection
          2. 7.2.2.2.2 Inductor Selection for the First L-C Filter
          3. 7.2.2.2.3 Output Capacitor Selection
          4. 7.2.2.2.4 Ferrite Bead Selection for Second L-C Filter
          5. 7.2.2.2.5 Input Capacitor Selection
          6. 7.2.2.2.6 Setting the Output Voltage
          7. 7.2.2.2.7 NR/SS Capacitor Selection
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Third-Party Products Disclaimer
      2. 8.1.2 Development Support
        1. 8.1.2.1 Custom Design With WEBENCH® Tools
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information
    1. 10.1 Tape and Reel Information

Package Options

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

6.3.1 Smart Config (S-CONF)

This S-CONF pin configures the device based on the resistor value. This pin is read after EN/SYNC goes high. The device configuration cannot be changed during operation. The S-CONF value is re-read if EN is pulled below 200mV or if VIN falls below UVLO. Table 6-1 shows the configuration options of switching frequency, spread spectrum modulation, output discharge, and synchronization.

To make sure the internal circuit detects the resistor value correctly, minimize the distance between the resistor and the S-CONF pin and do not place any capacitors on the S-CONF pin.

Table 6-1 S-CONF Device Configuration Modes
S-CONF SWITCHING FREQUENCY SPREAD SPECTRUM OUTPUT DISCHARGE SYNC
VIN 2.2MHz OFF OFF No
GND 1MHz OFF OFF No
4.87kΩ 1.4MHz OFF OFF No
6.04kΩ 1.4MHz OFF OFF 1.2 MHz to 1.6 MHz
7.5kΩ 2.2MHz OFF OFF 1.9 MHz to 2.42 MHz
9.31 kΩ 1MHz OFF OFF 0.9 MHz to 1.2 MHz
11.5kΩ 1MHz Random OFF No
14.3kΩ 1.4MHz Random OFF No
18.2kΩ 2.2MHz Random OFF No
22.1 kΩ 1MHz OFF ON No
27.4kΩ 1.4MHz OFF ON No
34kΩ 2.2MHz OFF ON No
42.2kΩ 1MHz OFF ON 0.9MHz to 1.2MHz
52.3kΩ 1.4MHz OFF ON 1.2MHz to 1.6MHz
64.9kΩ 2.2MHz OFF ON 1.9MHz to 2.42MHz
80.6kΩ 1MHz Random ON No
100kΩ 1.4MHz Random ON No
124kΩ 2.2MHz Random ON No