component
LM386BN-1
Public Made by Adomby adom
HGSEMI Audio Amplifiers, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 14d ago |
| viewers | 14d ago |
| lm386bn-1-etched.glb | 14d ago |
| lm386bn-1-etched.step | 14d ago |
| lm386bn-1-hero.glb | 14d ago |
| lm386bn-1-hero.overlay.json | 14d ago |
| lm386bn-1.glb | 14d ago |
| lm386bn-1.kicad_mod | 14d ago |
| lm386bn-1.kicad_sym | 14d ago |
| lm386bn-1.lbr | 14d ago |
| lm386bn-1.step | 14d ago |
| package.json | 14d ago |
| page.json | 14d ago |
| README.md | 14d ago |
LM386BN-1
HGSEMI · Audio Amplifiers · DIP-8
LM386BN-1 from HGSEMI, in a DIP-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-set pin: left open, the internal 1.35 kΩ resistor sets the voltage gain to 20 (26 dB); a capacitor between pins 1 and 8 bypasses that resistor to raise the gain to 200 (46 dB), and an RC series network between pins 1 and 8 sets any gain from 20 to 200. |
| 2 | IN- | input | Inverting input referenced to ground through an internal 50 kΩ resistor, with an input bias current of about 250 nA (typ, Vcc=6 V) and a maximum input voltage of ±0.4 V. |
| 3 | IN+ | input | Non-inverting input referenced to ground through an internal 50 kΩ resistor, with an input bias current of about 250 nA (typ, Vcc=6 V) and a maximum input voltage of ±0.4 V. |
| 4 | GND | power_in | Ground reference for the inputs, output and supply. |
| 5 | VOUT | output | Amplifier output, automatically biased to half the supply voltage; output power is 325 mW typ at Vcc=6 V into 8 Ω at 10% THD (500 mW min at Vcc=9 V). |
| 6 | Vs | power_in | Supply pin; operating supply range is 4 V to 12 V, with an absolute maximum of 15 V. |
| 7 | BYPASS | passive | Bypass pin; the datasheet's PSRR test uses a 10 µF bypass capacitor (CBYPASS) and gives no further functional limit for this pin. |
| 8 | GAIN | passive | Gain-set pin paired with pin 1: capacitor or RC network between pins 1 and 8 changes the gain from the internal default of 20 up to 200. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | DIP-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 |
|---|---|---|---|---|---|---|---|
| Operating supply voltage | Vcc | 4 | 12 | V | 4 | ||
| Maximum input voltage | VIN | -0.4 | 0.4 | V | 3 | ||
| Supply voltage | Vcc | 15 | V | 3 | |||
| Maximum allowable power dissipation | PD | 660 | mW | 3 | |||
| Soldering temperature | Ts | 260 | ℃ | 10 s | 3 | ||
| Junction temperature | Tj | 150 | ℃ | 3 | |||
| Operating temperature | Tamb | 0 | 70 | ℃ | 3 | ||
| Storage temperature | Tstg | -40 | 125 | ℃ | 3 | ||
| Quiescent supply current | Icc | 4 | 8 | mA | Vcc=6V, VIN=0 | 4 | |
| Output power | Po | 250 | 325 | mW | Vcc=6V, RL=8Ω, THD=10% | 4 | |
| Output power | Po | 500 | 700 | mW | Vcc=9V, RL=8Ω, THD=10% | 4 | |
| Voltage gain | Av | 26 | dB | Vcc=6V, f=1kHz | 4 | ||
| Voltage gain (pins 1-8 connected 10μF capacitor) | Av | 46 | dB | 1脚、8脚间接 10μF 电容 | 4 | ||
| Bandwidth | BW | 300 | kHz | Vcc=6V，脚 1、8 开路 | 4 | ||
| Total harmonic distortion | THD | 0.2 | % | Vcc=6V，RL=8Ω，Po=125mW，f=1kHz，脚 1、8 开路 | 4 | ||
| Power supply rejection ratio | PSRR | 50 | dB | Vcc=6V，f=1kHz，CBYPASS=10μF，1、8 脚开路、输出为参考 | 4 | ||
| Input resistance | RIN | 50 | kΩ | 4 | |||
| Input bias current | IB | 250 | nA | Vcc=6V，2、3 脚开路 | 4 |
CAD (KiCad official)
- Symbol:
LM386BN-1 - Footprint:
Package_DIP:DIP-8_W7.62mm - 3D model: DIP-8 (KiCad packages3D, STEP)
- 3D model files:
lm386bn-1-etched.step/lm386bn-1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm386bn-1.step/lm386bn-1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (10 pp, sha256
3500d8afa6a2f178, retrieved 2026-10-14, 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 0.3, 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).