
A parametrically identical gate driver in the same package; likely a direct replacement.
Finding a substitute for the UCC27517DBVR(UMW) 4A gate driver involves balancing performance and specifications. While several parts exist in the same SOT23-5 package, careful attention must be paid to maximum supply voltage, peak current, and switching speed to ensure system ...
Candidates have lower max voltage (18-20V vs 25V) or are much slower.
All considered candidates are in the same SOT23-5 package, but pinout must always be verified.
Yes, UCC27517ADBVR(UMW) is a direct parametric match and likely a drop-in replacement.
UCC27517ADBVR(UMW) is a parametrically identical part and the best choice. If unavailable, other options require careful review of voltage and speed.
The primary risk when substituting is a mismatch in maximum supply voltage or a significant change in propagation delay, which can affect system reliability and performance.

A parametrically identical gate driver in the same package; likely a direct replacement.
| Feature / factor | UCC27517DBVR(UMW) | UCC27517ADBVR(UMW) | EG27517 | RS8801HXF5 | Compatibility / risk |
|---|---|---|---|---|---|
| Current | 4 A | 4 A | 4A | 5 A | 4 A / 4A / 5 A — Peak output current matches.; EG27517: Peak output current matches.; RS8801HXF5: Higher peak current is an upgrade. |
| Voltage | 5 V to 25 V | 5 V to 25 V | 4V to 20V | 4.5 V to 18 V | 5 V to 25 V / 4V to 20V / 4.5 V to 18 V — Supply voltage range matches.; EG27517: Max supply voltage is lower.; RS8801HXF5: Max supply voltage is significantly lower. |
| Propagation Delay | 30 ns | 30 ns | 60-80ns | 11 ns | 30 ns / 60-80ns / 11 ns — Propagation delay matches.; EG27517: Significantly slower than target.; RS8801HXF5: Much faster, which is a potential upgrade. |
| Package | SOT23-5 | SOT23-5 | SOT23-5 | SOT23-5 | SOT23-5 — Package and pin count match.; EG27517: Package matches.; RS8801HXF5: Package matches. |
The best alternative is UCC27517ADBVR(UMW), which is parametrically identical and likely a minor variant of the same part. It should be a direct replacement.