The UCC57142EVM comes installed with the UCC57142 variant of the UCC57142 family of drivers, and the EVM out-of-the-box is set up according to that variant. The UCC57148 is the 8V UVLO variant. The UCC5714x is used for negative overcurrent protection.

The UCC57142 family of drivers comes in two more variants: the UCC57132B, which supports bipolar-voltage and has 12.5V UVLO, and the UCC57138C, which has split output and has 8V UVLO. Both the UCC57132B and UCC57138C variants are used for positive overcurrent protection.

The UCC5714x uses the top side of the EVM, and the UCC5713x uses the bottom side of the EVM. Only one IC should be populated on the EVM at a time.

Because each UCC5713x variant has slightly different pinouts, the EVM has jumpers to support the different variants. Jumpers J3 and J4 allow the use to short or open between connectors depending on which variant is being used. Figure 2-3 shows how J3 and J4 must be configured with each UCC5713x variant. Do not short more than one connection on J3. Please ensure to populate C11 and C12 with VDD bypass capacitors (minimum recommended for C11 is 1μF and C12 is 0.1μF).

Figure 2-3 Jumper J3 and J4 Selection for Each UCC5713x IC Variant

In addition to jumpers J3 and J4, there is also an option to solder 0Ω jumper resistors (R17, R19, and R20) for a low-parasitic way to short connections. The bottom side of the EVM out-of-the-box is set up for the UCC57132B variant, which has R20 installed on the board. Resistors R17 and R19 are not installed. If the UCC57138C variant is being used, R20 must be desoldered. Table 2-1 lists a guide to soldering or desoldering the 0Ω jumper resistors for each UCC5713x variant.