component
A4950ELJTR-T-MS
Public Made by Adomby adom
MSKSEMI Brushed DC Motor Drivers, SOIC-8-EP. 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
markdownA4950ELJTR-T-MS
MSKSEMI · Brushed DC Motor Drivers · SOIC-8-EP
A4950ELJTR-T-MS from MSKSEMI, in a SOIC-8-EP. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND | power_in | Ground reference connection for the IC. |
| 2 | IN2 | input | Logic input 2 for H-bridge control, accepts 0-0.8V for low or 2.0V and above for high. |
| 3 | IN1 | input | Logic input 1 for H-bridge direction and PWM control, accepts 0-0.8V for low or 2.0V and above for high. |
| 4 | VREF | power_in | Analog reference voltage input (minimum 0V) for setting current limit threshold with 10× gain multiplication factor applied to LSEN voltage. |
| 5 | VP | power_in | Power supply input with operating range 8-40V, supplies internal H-bridge and charge pump circuits. |
| 6 | OUT1 | tri_state | DMOS full-bridge output 1, tri-state capable of ±3.5A peak current with 600mΩ ON resistance and current limiting capability. |
| 7 | LSEN | input | Current sense input connected to external sense resistor, measures voltage in -0.5 to 0.5V range for current control and limiting. |
| 8 | OUT2 | tri_state | DMOS full-bridge output 2, tri-state capable of ±3.5A peak current with 600mΩ ON resistance and current limiting capability. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MSKSEMI |
| Package | SOIC-8-EP |
| Category | Motor Driver ICs |
| Pins | 9 |
CAD (KiCad official)
- Symbol:
A4950ELJTR-T-MS - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: SOIC-8-EP (KiCad packages3D, STEP)
- 3D model files:
a4950eljtr-t-ms-etched.step/a4950eljtr-t-ms-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);a4950eljtr-t-ms.step/a4950eljtr-t-ms.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MSKSEMI datasheet (9 pp, sha256
9a5eb67f250636e5, retrieved 2026-09-22, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).