component
L6506D
Public Made by Adomby adom
STMicroelectronics Stepper Motor Driver, SOIC-20-300mil. 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
markdownL6506D
STMicroelectronics · Stepper Motor Driver · SOIC-20-300mil
L6506D from STMicroelectronics, in a SOIC-20-300mil. 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 | R/C | passive | RC network pin that sets the oscillator frequency f = 1/(0.69RC) for R > 10 kΩ, within the 5 to 70 kHz range. |
| 2 | OSC. | bidirectional | Oscillator output used to drive the sync pins of other devices when synchronizing several chips. |
| 3 | SYNC | bidirectional | Synchronization pin connected to the master oscillator output so the master sets the operating frequency in all chips. |
| 4 | POWER ENABLE | input | TTL-compatible enable input common to the four output AND gates (VIH min 2 V, VIL max 0.8 V). |
| 5 | IN 1 | input | TTL-compatible logic input for OUT 1 (VIH min 2 V, VIL max 0.8 V). |
| 6 | IN 2 | input | TTL-compatible logic input for OUT 2 (VIH min 2 V, VIL max 0.8 V). |
| 7 | IN 3 | input | TTL-compatible logic input for OUT 3 (VIH min 2 V, VIL max 0.8 V). |
| 8 | IN 4 | input | TTL-compatible logic input for OUT 4 (VIH min 2 V, VIL max 0.8 V). |
| 9 | GND | power_in | Ground pin. |
| 10 | N.C. | unconnected | Not connected internally. |
| 11 | N.C. | unconnected | Not connected internally. |
| 12 | VSENSE 1 | input | Comparator 1 sense input from the sense resistor, input voltage range -0.3 to 3 V. |
| 13 | OUT 4 | output | TTL-compatible drive output 4 with VOH min 2 V at 400 µA and source current of 2.75 mA at VCC = 4.75 V. |
| 14 | OUT 3 | output | TTL-compatible drive output 3 with VOH min 2 V at 400 µA and source current of 2.75 mA at VCC = 4.75 V. |
| 15 | OUT 2 | output | TTL-compatible drive output 2 with VOH min 2 V at 400 µA and source current of 2.75 mA at VCC = 4.75 V. |
| 16 | OUT 1 | output | TTL-compatible drive output 1 with VOH min 2 V at 400 µA and source current of 2.75 mA at VCC = 4.75 V. |
| 17 | VSENSE 2 | input | Comparator 2 sense input from the sense resistor, input voltage range -0.3 to 3 V. |
| 18 | REF 1 | input | Reference voltage input for comparator 1; peak current is Vref/Rsense. |
| 19 | REF 2 | input | Reference voltage input for comparator 2; peak current is Vref/Rsense. |
| 20 | VCC | power_in | Supply voltage, 4.5 V to 7 V operating, 10 V absolute maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SOIC-20-300mil |
| Category | Motor Driver ICs |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
L6506D - Footprint:
Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm - 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
- 3D model files:
l6506d-etched.step/l6506d-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);l6506d.step/l6506d.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (8 pp, sha256
12dcd81ed04c553c, retrieved 2026-10-07, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).