Table 3-1 shows the typical parameters for the TPS92621Q1EVM. The typical input voltage
range is from 9 V to 20 V. The full-scale output current of the TPS92621Q1EVM is 250
mA. Users can adjust the output current by changing the sensing resistor (Rsns).
Table 2-1 TPS92621Q1EVM ParametersParameters | Value |
---|
Input voltage (V) | typical: 9-20 |
Output current per channel (mA) | 250 mA |
LED per channel | 3s1p LED string |
Rsns (Ω) | 0.6 |
Rres (Ω) | 25 |
Follow these steps for the EVM test setup:
- Set the voltage of the dc power supply to 12 V
and set the current limit to 1 A.
- Connect the positive and negative outputs of the
power supply to connectors VBAT and GND respectively on the EVM board.
- With the default jumper connections, the board
must begin operating after the power supply is turned on. Modify the jumpers for
other operating modes.
- For short-to-battery detection, set the voltage
of dc power to 10.5V and the current limit to 2.5A, avoid the risk of damaging
LEDs under long-term failure condition.