SLVUCI9 November   2023 TPS61289

 

  1.   1
  2.   TPS61289EVM-113 Evaluation Module
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Performance Specification
    2. 1.2 Modification
  5. 2EVM Configuration
    1. 2.1 EVM Top View and Circuit Layout Partitions
    2. 2.2 Connector, Test Point and Jumper Descripitions
      1. 2.2.1 Connector and Test Point Description
      2. 2.2.2 Jumper Configuration
  6. 3Test Procedure
    1. 3.1 Bench Setup
    2. 3.2 Boost Mode or Battery Discharge Mode Test Procedure
      1. 3.2.1 Power up and Power down Sequence
      2. 3.2.2 Test Waveform
    3. 3.3 Buck Mode or Battery Charge Mode Test Procedure
      1. 3.3.1 Power-up and Power-down sequence
      2. 3.3.2 Test Waveform
    4. 3.4 Operating the EVM with USB2ANY
      1. 3.4.1 Install USB2ANY Explorer
      2. 3.4.2 USB2ANY Connection
      3. 3.4.3 USB2ANY Interface Introduction
      4. 3.4.4 Test Procedure with USB2ANY
  7. 4Schematic, Bill of Materials, and Board Layout
    1. 4.1 Schematic
    2. 4.2 Bill of Materials
    3. 4.3 Board Layout
  8. 5Revision History

3.1 Bench Setup

Figure 4-16 shows the typical bench setup to operate the EVM.

The combination of the E-Load, Power supply and Capacitor emulates a battery at VLOW side. The emulated battery provides energy at Boost Mode or Battery Discharge Mode and absorbs energy at Buck Mode or Battery Charge Mode.

The combination of the E-Load and Power supply emulates a stable voltage bus at VHIGH side. The voltage bus provides energy at Buck Mode or Battery Charge Mode and absorbs energy at Boost Mode or Battery Discharge Mode.

The Vbat_sense+ and Vbat_sense- are connected for battery remote voltage sense.

GUID-20231114-SS0I-B8TB-BRL7-HFKT98CJR9FL-low.svg Figure 3-1 Bench Setup for Battery Charge and Discharge

Power Supplies: PS-High needs to be capable of 20 V/10 A , and PS-Low needs 5 V/ 25 A.

Electronic Loads: The E-Load-High needs to be capable of 20 V/10 A and E-Load-Low needs 5 V/ 25 A.

Capacitor: The capacitor needs to be above 5 V rated voltage and gets a capacitance of several hundred microfacies to make sure the port voltage stable during charge/discharge process.

Meters: Most current meters are rated only to 10 A, current probe or shunt are recommended to measure the current.

Oscilloscope: An oscilloscope and 10x probes with at least 20-MHz bandwidth is required. Current probe capable of 30 A is required to monitor the inductor current via a wire loop inserted to the non-switching side of the inductor.