component
LM386D
Public Made by Adomby adom
HTC Korea TAEJIN Tech Audio Amplifiers, SOP-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
markdownLM386D
HTC Korea TAEJIN Tech · Audio Amplifiers · SOP-8
LM386D from HTC Korea TAEJIN Tech, in a SOP-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-setting pin; an external resistor and capacitor between pins 1 and 8 raise the voltage gain from the internal 20 up to 200. |
| 2 | INPUT (-) | input | Inverting input; the inputs are ground referenced and the input bias current is 250 nA typical with pins 2 and 3 open. |
| 3 | INPUT (+) | input | Noninverting input; the inputs are ground referenced and the input resistance is 120 kΩ typical. |
| 4 | GND | power_in | Ground reference for the device. |
| 5 | VOUT | output | Amplifier output, automatically biased to one half the supply voltage, able to drive loads from 4 Ω to 32 Ω. |
| 6 | VCC | power_in | Supply voltage; recommended operating range is 4 V to 12 V, with absolute maximum 15 V. |
| 7 | BYPASS | passive | Bypass decoupling path for the internal bias node. |
| 8 | GAIN | passive | Gain-setting pin; used together with pin 1 and an external resistor and capacitor to set the gain from 20 up to 200. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HTC Korea TAEJIN Tech |
| Package | SOP-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Voltage (absolute maximum) | VCC | 15 | V | 1 | |||
| Input Voltage | VIN | -0.4 | 0.4 | V | 1 | ||
| Operating Ambient Temperature Range | TA | -40 | 85 | °C | 1 | ||
| Junction Temperature | TJ | 125 | °C | 1 | |||
| Supply Voltage (recommended) | VCC | 4 | 12 | V | 2 | ||
| Operating Free-Air Temperature Range | TA | 0 | 70 | °C | 2 | ||
| VCC Operating Supply Voltage | VCC | 4 | 12 | V | 5 | ||
| IQ Quiescent Current | IQ | 4 | 8 | mA | VIN = 0V | 5 | |
| Output Power | POUT | 250 | 325 | mW | VCC = 6V, THD = 10% | 5 | |
| Output Power | POUT | 500 | 700 | mW | VCC = 9V, THD = 10% | 5 | |
| Voltage Gain | AV | 26 | dB | Pin 1 and Pin 8 Open | 5 | ||
| Voltage Gain | AV | 46 | dB | 10µF from Pin 1 to Pin 8 | 5 | ||
| Bandwidth | BW | 60 | kHz | 10µF from Pin 1 to Pin 8 | 5 | ||
| Bandwidth | BW | 300 | kHz | Pin 1 and Pin 8 Open | 5 | ||
| Total Harmonic Distortion | THD | 0.2 | % | POUT = 125mW, Pin 1 and Pin 8 Open | 5 | ||
| Input Resistance | RIN | 120 | kΩ | 5 | |||
| Input Bias Current | IBIAS | 250 | nA | Pin 2 and Pin 3 Open | 5 |
CAD (KiCad official)
- Symbol:
LM386D - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
lm386d-etched.step/lm386d-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm386d.step/lm386d.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HTC Korea TAEJIN Tech datasheet (8 pp, sha256
0538f48990f528d8, retrieved 2026-10-16, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-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).