component
AS4950
Public Made by Adomby adom
ASSEMSTAR Brushed DC Motor Drivers, ESOP-8. 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
markdownAS4950
ASSEMSTAR · Brushed DC Motor Drivers · ESOP-8
AS4950 from ASSEMSTAR, in a ESOP-8. 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 (0 V reference) for logic and output circuits. |
| 2 | IN2 | input | Logic input 2 for H-bridge control; accepts 0 to 6 V with thresholds at 0.8 V (low) and 2.0 V (high). |
| 3 | IN1 | input | Logic input 1 for H-bridge control; accepts 0 to 6 V with thresholds at 0.8 V (low) and 2.0 V (high). |
| 4 | VREF | power_in | Analog reference voltage input for current limiting; sets target current via 10 V/V gain comparator with LSEN. |
| 5 | VP | power_in | Power supply input for full bridge output drivers; 8 V to 40 V operating range. |
| 6 | OUT1 | tri_state | Full bridge DMOS output 1 for motor phase control; capable of ±3.5 A peak current (2 A continuous) with high impedance during dead time and coast mode. |
| 7 | LSEN | input | Current sense resistor connection; monitors voltage across external sense resistor (-0.5 V to 0.5 V) for PWM current limiting. |
| 8 | OUT2 | tri_state | Full bridge DMOS output 2 for motor phase control; capable of ±3.5 A peak current (2 A continuous) with high impedance during dead time and coast mode. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ASSEMSTAR |
| Package | ESOP-8 |
| Category | Motor Driver ICs |
| Pins | 9 |
CAD (KiCad official)
- Symbol:
AS4950 - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm - 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files:
as4950-etched.step/as4950-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);as4950.step/as4950.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ASSEMSTAR datasheet (7 pp, sha256
930fd933bcba95ee, 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).