component
NSA20921
Public Made by Adomby adom
WXNSIC Audio Amplifiers, SOP-16. Datasheet-verified pinout, 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
markdownNSA20921
WXNSIC · Audio Amplifiers · SOP-16
NSA20921 from WXNSIC, in a SOP-16. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VAA | power_in | Floating input stage positive power supply. |
| 2 | GND | power_in | Floating ground reference for input stage. |
| 3 | IN- | input | Analog signal inverting input terminal with ±0.5V maximum input range from VGND. |
| 4 | COMP | output | Error amplifier output and phase compensation terminal with output voltage range VAA-1V to VAA+1V. |
| 5 | CSD | bidirectional | Shutdown timing capacitor interface terminal with voltage control range VSS to VAA. |
| 6 | VSS | power_in | Floating input stage negative power supply with maximum operating voltage 300V. |
| 7 | VREF | power_out | 5V reference output for OCSET overcurrent threshold programming with 0.3 to 0.8mA output current. |
| 8 | OCSET | input | Low-side overcurrent threshold setting input with voltage range 0.5 to 5V. |
| 9 | DT | input | Dead time control terminal selecting four dead time modes: 25ns, 40ns, 65ns, or 105ns. |
| 10 | COM | power_in | Low-side driver ground reference. |
| 11 | LO | output | Low-side gate driver output terminal delivering maximum 1A pull and 1.2A sink current. |
| 12 | VCC | power_in | Low-side power supply for output and logic circuits with 10 to 18V operating range. |
| 13 | VS | power_in | High-side floating ground reference. |
| 14 | HO | output | High-side gate driver output terminal delivering maximum 1A pull and 1.2A sink current. |
| 15 | VB | power_in | High-side floating power supply with operating voltage VS+10V to VS+18V. |
| 16 | CSH | input | High-side overcurrent protection control terminal with voltage range VS to VB. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | WXNSIC |
| Package | SOP-16 |
| Category | Amplifiers/Comparators |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
NSA20921 - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOP-16 (KiCad packages3D, STEP)
- 3D model files:
nsa20921-etched.step/nsa20921-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);nsa20921.step/nsa20921.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: WXNSIC datasheet (18 pp, sha256
b3169693641c7fca, retrieved 2026-09-22, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(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).