component
LM4860MX
Public Made by Adomby adom
Texas Instruments Audio Amplifiers, SOIC-16. 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
markdownLM4860MX
Texas Instruments · Audio Amplifiers · SOIC-16
LM4860MX from Texas Instruments, in a SOIC-16. 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 | GND | power_in | Ground pin, one of five GND pins (1, 4, 8, 9, 16) tied to ground. |
| 2 | SHUTDOWN | input | Shutdown control input: logic high (supply voltage) turns off the amplifier bias for 0.6 µA typical current, ground enables it; must not be left floating and has an internal soft 47 kΩ pull-up. |
| 3 | HP-SENSE | output | Headphone sense output that goes high when a headphone control input is high, can be tied to SHUTDOWN, and can drive about 2 mA into a logic gate input. |
| 4 | GND | power_in | Ground pin, one of five GND pins (1, 4, 8, 9, 16) tied to ground. |
| 5 | BYPASS | passive | Half-supply (VDD/2) bypass pin for a bypass capacitor CB (typically 0.1 µF) to ground, providing half-supply filtering. |
| 6 | HP-IN1 | input | Headphone control input 1 that disables the amplifier and reduces IDD to under 1 mA when a logic high is applied. |
| 7 | HP-IN2 | input | Headphone control input 2 that disables the amplifier and reduces IDD to under 1 mA when a logic high is applied. |
| 8 | GND | power_in | Ground pin, one of five GND pins (1, 4, 8, 9, 16) tied to ground. |
| 9 | GND | power_in | Ground pin, one of five GND pins (1, 4, 8, 9, 16) tied to ground. |
| 10 | Vo1 | output | Amplifier 1 output, one side of the bridged load, biased at half-supply. |
| 11 | GAIN-OUT | output | Output of the first amplifier used for the feedback resistor Rf and internal 40 kΩ input of the second amplifier. |
| 12 | VDD | power_in | Positive supply pin, operating range 2.7 V to 5.5 V, bypassed with CS (typically 0.1 µF). |
| 13 | -IN | input | Inverting input of the first amplifier, connected through Ri to set gain with Rf. |
| 14 | +IN | input | Non-inverting input of the first amplifier, typically AC-coupled or tied to the bypass node. |
| 15 | Vo2 | output | Amplifier 2 output (unity-gain inverting), the other side of the bridged load, 180° out of phase with Vo1. |
| 16 | GND | power_in | Ground pin, one of five GND pins (1, 4, 8, 9, 16) tied to ground. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16 |
| Category | Amplifiers/Comparators |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
LM4860MX - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
lm4860mx-etched.step/lm4860mx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm4860mx.step/lm4860mx.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (20 pp, sha256
e4d871c00cb92c3b, retrieved 2026-10-03, 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).