component
LM386N-4
Public Made by Adomby adom
Texas Instruments Audio Amplifiers, PDIP-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
markdownLM386N-4
Texas Instruments · Audio Amplifiers · PDIP-8
LM386N-4 from Texas Instruments, in a PDIP-8. 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 | GAIN | passive | Gain control pin; add external resistor and capacitor between pins 1 and 8 to set voltage gain between 20 and 200. |
| 2 | -INPUT | input | Inverting input; accepts input voltage from -0.4V to 0.4V with 50 kΩ input impedance. |
| 3 | +INPUT | input | Noninverting input; accepts input voltage from -0.4V to 0.4V with 50 kΩ input impedance. |
| 4 | GND | power_in | Ground reference. |
| 5 | VOUT | output | Output; drives speaker loads between 4 Ω and 32 Ω. |
| 6 | VS | power_in | Power supply; operates from 5V to 18V for LM386N-4. |
| 7 | BYPASS | output | Bypass decoupling pin; connect 10 µF capacitor to ground for power supply decoupling. |
| 8 | GAIN | passive | Gain control pin; add external resistor and capacitor between pins 1 and 8 to set voltage gain between 20 and 200. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | PDIP-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM386N-4 - Footprint:
Package_DIP:DIP-8_W7.62mm - 3D model: PDIP-8 (KiCad packages3D, STEP)
- 3D model files:
lm386n-4-etched.step/lm386n-4-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm386n-4.step/lm386n-4.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (34 pp, sha256
0fbdb3de058ef6b0, retrieved 2026-09-25, 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).