This EVM user's guide describes test procedure for
the LM7311, LM7320, and LM7330 eFuse. Verify that the evaluation board has the
default jumper settings as Table 3-1 shows.
Table 3-1 Default Jumper Setting for LM7320-30EVM eFuse Evaluation Board| J-1, J-11 | J5, J17 | J7, J19 | J8, J15 | J6, J16 | J4, J14 | J9, J10 |
|---|
| 1-2 | 3-4 | 1-2 | OPEN | OPEN | OPEN | OPEN |
Adhere to the following instructions before starting any test and repeat again before moving to the next test:
- Set the power supply output (VIN) to zero volts.
- Turn off the power supply.
- Adjust the jumper positions on the EVM to the default configuration as shown in
Table 3-1.
- Connect an electronic load in CR mode with resistance configured to 24Ω at the
output of eFuse. The positive terminal of electronic load connects to J2-1 and
the negative terminal to J2-2
- Turn the power supply on and set the power supply output (VIN) to 12V and 20A. Verify that the power supply output is disabled and turn on the electronic load