Alternatives to Texas Instruments LM5104M
Texas Instruments LM5104M and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
Equivalent and substitute parts for Texas Instruments LM5104M
 LM5104MTexas Instruments | SM74104MA/NOPBTexas Instruments |  LM2104DRTexas Instruments | +2more | |
|---|---|---|---|---|
| FFF Compatibility | The pinout (Pins 1-8: VDD, HB, HO, HS, RT, IN, VSS, LO) is identical to the target part, allowing true drop-in physical compatibility.Both devices share the same standard 8-SOIC (3.90 mm width) package dimensions.Electrical parameters match exactly, including the 9V to 14V bias voltage, 1.6A output currents, and 100V operating limit. | The pinout layout is different (uses the industry-standard layout with IN on Pin 2, SD on Pin 3, LO on Pin 5, HS on Pin 6, HO on Pin 7, BST on Pin 8).Housed in the same standard 8-SOIC footprint.Features a fixed typical dead-time of 475 ns instead of an adjustable delay, and peak gate-drive currents are lower (500mA source / 800mA sink). | ||
 AI Summary | LM5104M by Texas Instruments: Half-Bridge Gate Driver IC Inverting, Non-Inverting 8-SOIC. | The SM74104MA/NOPB belongs to Texas Instruments' renewable-energy grade line and acts as an active, direct drop-in replacement for the obsolete LM5104M. It retains the same pinout, programmable dead-time delay functionality, and 1.6A drive capability. This is the highest-confidence substitute that avoids a board redesign.
| The LM2104DR is a modern, active half-bridge driver utilizing an industry-standard pinout with a single PWM input and shutdown control. It is an excellent functional upgrade if a board redesign can be accommodated, offering improved transient noise immunity. However, the dead-time is fixed at 475 ns rather than being programmable via an RT resistor.
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| Lifecycle Status | Obsolete | Unknown | Active | |
| Market Availability | Discontinued | Unknown | In stock | |
| REACH | REACH | Unknown | REACH | |
| RoHS | RoHS | Unknown | RoHS | |
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Frequently asked questions
Yes. The Texas Instruments LM5104M is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.
The closest qualified second sources for the Texas Instruments LM5104M are the SM74104MA/NOPB (Texas Instruments) and the LM2104DR (Texas Instruments), out of 4 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Not always. The alternatives to the LM5104M are matched on function but can differ in package, pinout or a key parameter, so review the fit/form/function notes in the table and the datasheet before designing one in.
The LM5104M (Texas Instruments) is a part in the Power Management (PMIC) category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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