SLUUCQ6 December   2022 TPS92629-Q1

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
    1. 1.1 Features
    2. 1.2 Typical Application
  4. 2TPS92629Q1EVM Description
    1. 2.1 Connector Map
    2. 2.2 Jumper Map
  5. 3Test Setup
  6. 4Schematic, Bill of Materials, and Layout
    1. 4.1 Schematics
    2. 4.2 Layout
  7. 5Bill of Materials (BOM)

3 Test Setup

Table 3-1 shows the typical parameters for the TPS92629Q1EVM. The typical input voltage range is from 9 V to 20 V. The full-scale output current of the TPS92629Q1EVM is 250 mA. Users can adjust the output current by changing the sensing resistor (Rsns).

Table 3-1 TPS92629Q1EVM Parameters
ParametersValue
Input voltage (V)typical: 9-20
Output current per channel (mA)

250mA

LED per channel3s1p LED string
Rsns (Ω)1.8
Rres (Ω)25

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 voltage of dc power to 10.5V and the current limit to 2A, avoid long-term failure condition for the risk of damaging LEDs.