component
LM4890MM
Public Made by Adomby adom
Texas Instruments Audio Power OpAmps, VSSOP-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
markdownLM4890MM
Texas Instruments · Audio Power OpAmps · VSSOP-8
LM4890MM from Texas Instruments, in a VSSOP-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 | Active-low shutdown input; logic low (below 0.4V max) turns off the bias circuitry for about 0.1µA typical shutdown current, and logic high (1.2V min) enables the amplifier. |
| 2 | BYPASS | passive | Half-supply bypass pin that needs an external capacitor (1.0µF recommended) for half-supply filtering, PSRR and turn-on click and pop performance. |
| 3 | +IN | input | Non-inverting input of the first amplifier. |
| 4 | -IN | input | Inverting input of the first amplifier, driven through RIN, which sets the gain with Rf as AVD = 2*(Rf/RIN) and forms a high-pass filter with CIN. |
| 5 | Vo1 | output | Output of the first amplifier, one side of the bridged (BTL) load, in antiphase with Vo2 and biased at half-supply. |
| 6 | VDD | power_in | Positive supply, operating range 2.2V to 5.5V, bypassed with a capacitor placed close to the pin. |
| 7 | GND | power_in | Ground pin. |
| 8 | Vo2 | output | Output of the second amplifier, the other side of the bridged (BTL) load, a unity-gain inversion of Vo1 biased at half-supply. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8 |
| Category | Operational Amplifier/Comparator |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM4890MM - Footprint:
Package_SO:VSSOP-8_2.3x2mm_P0.5mm - 3D model: VSSOP-8 (KiCad packages3D, STEP)
- 3D model files:
lm4890mm-etched.step/lm4890mm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm4890mm.step/lm4890mm.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (40 pp, sha256
13ec1db10db71b3a, retrieved 2026-10-10, 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).