SLVUCT5 October   2023

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Test Setup
    2. 2.2 Connector Map
    3. 2.3 Jumper Map
  8. 3Hardware Design Files
    1. 3.1 Schematics
    2. 3.2 PCB Layout
    3. 3.3 Bill of Materials (BOM)
  9. 4Additional Information
    1.     Trademarks

2.1 Test Setup

Table 3-1 shows the typical parameters for the TPS92622SOPQ1EVM. The typical input voltage range is from 9 V to 20 V. The full-scale output current of the TPS92622SOPQ1EVM is 150 mA per channel. Users can adjust the output current by changing the sensing resistor (Rsns).

Table 2-1 TPS92622SOPQ1EVM Parameters
ParametersValue
Input voltage (V)typical: 9-20
Output current per channel (mA)150 mA
LED per channel3s1p LED string
Rsns (Ω)1
Rres (Ω)41

Follow these steps for the EVM test setup:

  1. Set the voltage of the dc power supply to 12 V and set the current limit to 1 A.
  2. Connect the positive and negative outputs of the power supply to connectors VBAT and GND respectively on the EVM board.
  3. With the default jumper connections, the board must begin operating after the power supply is turned on. Modify the jumpers for other operating modes.
  4. For short-to-battery detection, set the voltage of dc power to 10.5V and the current limit to 2.5A to avoid the risk of damaging LEDs under long-term failure condition.