Texas Instruments UCC27321DR, low-side gate driver, single channel, inverting input, 9A peak source/sink, 20ns rise/fall, 4V–15V supply, -40°C to 105°C, 8-SOIC package.
| Parameter | Value |
|---|---|
| Gate type | N-Channel, P-Channel MOSFET |
| Input type | Inverting |
| Channel type | Single |
| Mounting | Surface Mount |
| Supply voltage | 4V ~ 15V |
| Logic voltage - VIL, VIH | 1.1V, 2.7V |
| Current - peak output (Source, sink) | 9A, 9A |
| Operating temperature | -40°C~105°C(TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Number of drivers | 1 |
| Driven configuration | Low-Side |
| Rise (Fall time) | 20ns, 20ns |
The exposed pad is not present on this SOIC variant, so no thermal-via stitching is needed — the junction temperature is managed through the leadframe and copper traces.
For dual-sourcing or a second-source option, the LM5106MM/NOPB is a half-bridge driver with 1.2 A peak current and a different drive architecture — it is not a pin-compatible drop-in, but it fills a similar role if the design can accommodate the half-bridge topology and lower drive strength.
The evidence does not list an enable pin. The input type is inverting, so the driver output follows the inverse of the input signal — no dedicated enable function is documented in the available specs.