component
SM74104SDX
Public Made by Adomby adom
Texas Instruments Gate Drivers, WSON-10-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSM74104SDX
Texas Instruments · Gate Drivers · WSON-10-EP(4x4)
SM74104SDX from Texas Instruments, in a WSON-10-EP(4x4). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VDD | power_in | Positive supply voltage input, with recommended operating range 9 V to 14 V and absolute maximum VDD to VSS of 18 V. |
| 2 | HB | power_in | Positive connection for the high-side bootstrap capacitor, which must be held between VHS + 8 V and VHS + 14 V, with VHB to VSS absolute maximum of 118 V and ESD rating of ±500 V HBM on this pin. |
| 3 | HO | output | High-side gate driver output to drive the top MOSFET, with peak pullup current of 1.6 A and peak pulldown current of 1.8 A. |
| 4 | HS | passive | Switch node pin, which is the floating return of the high-side driver, rated from -1 V to 100 V with HS slew rate up to 50 V/ns. |
| 5 | NC | unconnected | No connect pin on the WSON-10 package. |
| 6 | NC | unconnected | No connect pin on the WSON-10 package. |
| 7 | RT | passive | Delay timer pin, biased at about 3 V and current limited to 1 mA, with a resistor between 5 kΩ and 100 kΩ connected to VSS to set the dead-time between 90 ns and 200 ns. |
| 8 | IN | input | PWM control input for the LO and HO outputs, with VIL of 0.8 V to 1.8 V, VIH of 1.8 V to 2.2 V, and internal pulldown resistance of 100 kΩ to 500 kΩ. |
| 9 | VSS | power_in | Ground pin, which serves as the reference for VDD, the timer and the gate drivers. |
| 10 | LO | output | Low-side gate driver output to drive the bottom MOSFET, with peak pullup current of 1.6 A and peak pulldown current of 1.8 A. |
| 11 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WSON-10-EP(4x4) |
| Category | Motor Driver ICs |
| Pins | 11 |
CAD (KiCad official)
- Symbol:
SM74104SDX - Footprint:
Package_SON:WSON-10-1EP_4x4mm_P0.8mm_EP2.6x3mm - 3D model: WSON-10-EP(4x4) (KiCad packages3D, STEP)
- 3D model files:
sm74104sdx-etched.step/sm74104sdx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sm74104sdx.step/sm74104sdx.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (31 pp, sha256
47365d07b7ec4d53, retrieved 2026-10-12, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).