# TF21834M-TR

**JSMSEMI** · Gate Drivers · SOP-14

TF21834M-TR from JSMSEMI, in a SOP-14. 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 | HIN | input | High-side logic signal input, with logic range 0 V to VCC and compatible with 3.3 V, 5 V and 15 V logic. |
| 2 | LIN | input | Low-side signal input (active-low, drawn as LIN with overbar), with logic range 0 V to VCC. |
| 3 | VSS | power_in | Digital ground, the reference for all voltage ratings. |
| 4 | DT | input | Programmable dead-time input, with dead time set by an external resistor RDT (400 ns at RDT=0, 5 µs at RDT=200 kΩ). |
| 5 | COM | power_in | Power ground, the return for the low-side output. |
| 6 | LO | output | Low-side output, with 4.0 A source/4.0 A sink drive capability and a voltage range of -0.3 V to VCC+0.3 V. |
| 7 | VCC | power_in | Low-side supply voltage, recommended 10 V to 20 V (absolute maximum 25 V). |
| 8 | NC | unconnected | No connection. |
| 9 | NC | unconnected | No connection. |
| 10 | NC | unconnected | No connection. |
| 11 | VS | power_in | High-side floating ground, recommended -9 V to 700 V. |
| 12 | HO | output | High-side output, with a voltage range of VS to VB recommended and 4.0 A source/4.0 A sink drive capability. |
| 13 | VB | power_in | High-side floating supply, recommended VS+10 V to VS+20 V (absolute maximum 725 V). |
| 14 | NC | unconnected | No connection. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | SOP-14 |
| Category | Motor Driver ICs |
| Pins | 14 |

## CAD (KiCad official)

- Symbol: `TF21834M-TR`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOP-14 (KiCad packages3D, STEP)
- 3D model files: `tf21834m-tr-etched.step` / `tf21834m-tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tf21834m-tr.step` / `tf21834m-tr.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [JSMSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590908407115567104) (8 pp, sha256 `fae61f250e7aa62d`, retrieved 2026-10-19, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (vision), consensus `claude-opus-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).

[Datasheet PDF](docs/tf21834m-tr-datasheet.pdf)