component
LM4861N
Public Made by Adomby adom
HGSEMI Audio Amplifiers, DIP-8. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownLM4861N
HGSEMI · Audio Amplifiers · DIP-8
LM4861N 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 | SHUTDOWN | input | Shutdown control that turns off the bias circuitry when a logic high (VDD) is applied and enables the amplifier when tied to GND, and it must not be left floating. |
| 2 | BYPASS | passive | Half-supply (VDD/2) bypass pin that connects to an external bypass capacitor CB for half-supply filtering. |
| 3 | +IN | input | Non-inverting input of the first amplifier. |
| 4 | -IN | input | Inverting input of the first amplifier, where the gain is set by Rf and Ri with Avd = 2*(Rf/Ri). |
| 5 | Vo1 | output | Output of the first amplifier, which drives one side of the bridged load. |
| 6 | VDD | power_in | Positive supply, with an operating range of 2.5V to 5.5V and a 6.0V absolute maximum, which needs a bypass capacitor CS close to the pin. |
| 7 | GND | power_in | Ground pin. |
| 8 | Vo2 | output | Output of the second amplifier, which is internally fixed at unity-gain inverting and drives the other side of the bridged load 180° out of phase with Vo1. |
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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage | VDD | 2.5 | V | 5 | |||
| Supply Voltage | VDD | 5.5 | V | 5 | |||
| Quiescent Power Supply Current | IDD | 6.5 | 10 | mA | VIN = 0V, IO = 0A | 5 | |
| Shutdown Current | ISD | 0.6 | 10 | μA | VSHUTDOWN = VDD | 5 | |
| Output Offset Voltage | VOS | 5 | 50 | mV | VIN = 0V | 5 | |
| Output Power | PO | 1 | 1.1 | W | THD = 1% (max); f = 1 kHz | 5 | |
| Temperature Range | TA | -40 | 85 | °C | TMIN ≤ TA ≤ TMAX | 4 | |
| Supply Voltage | VDD | 2.5 | 5.5 | V | 4 | ||
| Supply Voltage (absolute maximum) | 6 | V | 4 | ||||
| Input Voltage | -0.3 | V | Upper limit printed as VDD + 0.3V | 4 | |||
| Storage Temperature | -65 | 150 | °C | 4 | |||
| Junction Temperature | TJMAX | 150 | °C | 4 | |||
| Lead Temperature | 260 | °C | Soldering, 10 seconds | 4 | |||
| ESD Susceptibility | 3000 | V | Human body model, 100pF discharged through 1.5kΩ resistor | 4 | |||
| ESD Susceptibility | 250 | V | Machine model, 220pF-240pF discharged through all pins | 4 | |||
| Junction-to-Case Thermal Resistance | θJC | 37 | °C/W | DIP package | 4 | ||
| Junction-to-Ambient Thermal Resistance | θJA | 107 | °C/W | DIP package | 4 |
CAD (KiCad official)
- Symbol:
LM4861N - Footprint:
Package_DIP:DIP-8_W7.62mm - 3D model: DIP-8 (KiCad packages3D, STEP)
- 3D model files:
lm4861n-etched.step/lm4861n-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm4861n.step/lm4861n.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (17 pp, sha256
dc0b74bb23017914, retrieved 2026-10-21, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).