Is there a pin-compatible replacement for U2104M?

While several candidates share the SOP-8 package, none are fully pin-compatible with identical electrical ratings. Key parameters like maximum voltage differ significantly, making them not directly interchangeable.

What risks should I check before replacing U2104M?

The most critical risk is the maximum high-side voltage; ensure the replacement's rating (e.g., 250V or 350V) exceeds your circuit's bus voltage. Also verify supply voltage range, output current, and timing parameters to avoid performance issues.

U2104M Alternatives, Datasheet & Cross Reference | UNI-SEMIC

U2104M is a 600V half-bridge gate driver in a SOP-8 package. Finding a direct replacement requires careful matching of high-side voltage, timing, and current drive capabilities.

AI replacement insight

Electrical riskhigh

All candidates have much lower max voltage ratings (250V-350V vs 600V).

Package risklow

All candidates share the same SOP-8 package, but pinout must be verified.

Can it be replaced directly?

No, a direct, pin-compatible replacement for the U2104M with a 600V rating was not identified. All functional alternatives have significantly lower voltage ratings.

Best replacement path

No direct drop-in replacement found. Alternatives like UCC27282DR-JSM offer similar function but with a lower 250V rating, requiring validation for lower voltage applications.

Main risk

The primary risk is electrical overstress due to lower maximum high-side voltage ratings in all available alternatives.

Recommended alternatives

Functional alternative in SOP-8 package with higher current but a significantly lower 350V maximum voltage rating.

View details

Alternative comparison matrix

Feature / factor	U2104M	U3115C	UCC27282DR-JSM	Compatibility / risk
Package	SOP-8	SOP-8	SOP-8	SOP-8 — Package matches.; UCC27282DR-JSM: Package matches.
Voltage	4.8V ~ 20V	5V ~ 20V	6V ~ 20V	5V ~ 20V / 6V ~ 20V — Supply voltage range is compatible.; UCC27282DR-JSM: Narrower supply voltage range (higher minimum).
Current	0.4A / 0.6A	1.0A / 1.2A	4A	1.0A / 1.2A / 4A — Higher peak output current.; UCC27282DR-JSM: Much higher peak output current.
Interface	420ns / 220ns	450ns / 150ns	-	450ns / 150ns — Propagation delays differ, may affect timing.

Application & sourcing insights

Questions & answers

There are no direct drop-in replacements. Functional alternatives like UCC27282DR-JSM exist but have a lower voltage rating (250V vs 600V) and require careful review for your specific application's voltage requirements.