SLVUCG5 January   2023 TPS7H1111-SP

PRODUCTION DATA  

  1.   TPS7H1111EVM-CVAL
  2.   Trademarks
  3. 1Introduction
    1. 1.1 Related Information
    2. 1.2 Features
    3. 1.3 Applications
  4. 2Setup
    1. 2.1 Input/Output Connectors and Jumper Descriptions
      1. 2.1.1 Jumpers
      2. 2.1.2 Test Points
    2. 2.2 Equipment Setup
  5. 3Operation
  6. 4Adjustable Operation
  7. 5Test Results
    1. 5.1 Enable and Soft Start Timing
    2. 5.2 PSRR
    3. 5.3 Stability
    4. 5.4 Noise Spectral Density
  8. 6Board Layout
  9. 7Schematic
  10. 8Bill of Materials

2.2 Equipment Setup

The following procedure guides the setup and testing of the TPS7H1111EVM-CVAL.

The following equipment is required for this testing:

  1. Power supply PS1 capable of up to 7 V and 1.5 A for suppling VIN.
    • If testing current limit functionality, PS1 should be capable of 3 A.
  2. Power supply PS2 capable of up to 14 V and 100 mA.
  3. Eload or resistive load capable of > 1.5 A (or desired test load).
  4. Voltage meter and/or oscilloscope for monitoring VOUT.

The following procedure describes the connectivity, supplies, and load setup:

  1. With PS1 disabled, setup with 2.5 V, and 1.5 A current limit.
  2. Connect PS1 positive supply with banana cable to VIN + jumper J1.
  3. Connect PS1 negative supply with banana cable to VIN GND jumper J10.
    • Alternately, VIN can be supplied with SMA J3. Observe current ratings of SMA cable.
  4. With PS2 disabled, setup with 5 V, and 100 mA current limit.
  5. Connect PS2 positive supply with banana cable to VBIAS + jumper J7.
  6. Connect PS2 negative supply with banana cable to VBIAS GND jumper J11.
    • Alternately, VBIAS can be supplied with SMA J8.
  7. Connect oscilloscope to SMA jack J5 if desired to monitor VOUT.
    • Alternatively, the cold nose connector J6 or TP4 may be used for VOUT monitoring.
  8. Connect voltage meter to VOUT using TP4, J6, J5, or J2 if needed.
  9. Connect desired (≤1.5 A) load between the VOUT connector J2, and the GND at connector J9.

Note: Large VIN – VOUT differentials can lead to excessive internal power dissipation when operating at higher ILOAD currents. Internal power dissipation power can be estimated with VIN – VOUT × ILOAD. See SLVSFT8 for more information on power calculations