
Fortior Technology (Shenzhen) Co., Ltd.
FD6288Q is a functional alternative from the same family but requires a board redesign due to a different package.
The Fortior FD6288T is a 250V three-phase gate driver in a TSSOP20 package. While no drop-in replacement is confirmed, several functional alternatives exist that require engineering review, primarily for pinout compatibility.
Pinout mismatch is a high risk for all candidates and must be verified by an engineer.
Some candidates have slightly weaker drive current, which may affect performance in high-demand applications.
Multiple alternatives exist from different manufacturers, improving sourcing options.
No confirmed direct, pin-compatible replacement has been found. However, BL8288 and U3315 are strong candidates in the same TSSOP20 package that require pinout verification.
Verify the pinout of BL8288. It has the closest parametric match in the same package. If pinout differs, U3315 is the next best option to check.
The primary risk is pinout incompatibility, even for parts in the same package, which would require a PCB redesign.

Fortior Technology (Shenzhen) Co., Ltd.
FD6288Q is a functional alternative from the same family but requires a board redesign due to a different package.
| Feature / factor | FD6288T | FD6288Q | Alt 2 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | TSSOP20 | QFN24 | QFN24 — Requires board redesign. | ||
| Pinout | 20 | 24 | 24 — Different pin count and layout. | ||
| Current | +1.5A / -1.8A | 1.5A / -1.8A | 1.5A / -1.8A — Drive current matches. | ||
| Voltage | 250V | 250V | 250V — Floating voltage matches. |
The best alternative appears to be BL8288, as it matches the package, voltage, and current ratings. However, you must verify its pinout is compatible with your design before use.