component
NS4110B
Public Made by Adomby adom
Shenzhen Nsiway Tech Audio Amplifiers, eSOP-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
markdownNS4110B
Shenzhen Nsiway Tech · Audio Amplifiers · eSOP-8
NS4110B from Shenzhen Nsiway Tech, in a eSOP-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 | CTRL | input | Mode control pin: below 0.5 V the amplifier is in low-power shutdown, 0.9 V to 1.5 V selects Class AB, and 2 V to 5 V selects Class D (absolute maximum CTRL voltage 0 V to 5 V). |
| 2 | BYPASS | passive | Connection for an external decoupling capacitor on the internal reference voltage. |
| 3 | INP | input | Positive amplifier input; the voltage gain is set by the external input resistor Ri, with Av = 300k/Ri and the internal 300k feedback resistor specified to ±10%. |
| 4 | INN | input | Negative amplifier input; the voltage gain is set by the external input resistor Ri, with Av = 300k/Ri and the internal 300k feedback resistor specified to ±10%. |
| 5 | VON | output | Negative output terminal of the speaker driver, which connects to the load together with VOP. |
| 6 | VDD | power_in | Power supply input; the recommended operating voltage is 6 V to 14 V (12 V typical) and the absolute maximum input range is 6 V to 14 V. |
| 7 | GND | power_in | Power ground for the device. |
| 8 | VOP | output | Positive output terminal of the speaker driver, which connects to the load together with VON. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen Nsiway Tech |
| Package | eSOP-8 |
| Category | Amplifiers/Comparators |
| Pins | 9 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Recommended supply voltage | VDD | 6 | 12 | 14 | V | 4 | |
| Input voltage range | 6 | 14 | V | 3 | |||
| CTRL pin voltage range | 0 | 5 | V | 3 | |||
| ESD voltage | 2000 | V | printed as >2000V | 3 | |||
| Operating temperature range | -45 | 85 | ℃ | 3 | |||
| Storage temperature range | -55 | 150 | ℃ | 3 | |||
| Maximum junction temperature | 150 | ℃ | 3 | ||||
| Soldering temperature | 260 | ℃ | 10 s | 3 | |||
| Internal feedback resistor tolerance | -10 | 10 | % | internal feedback resistor 300k, maximum deviation | 8 | ||
| Shutdown leakage current | ISD | 0 | 0.1 | 1 | µA | VCTRL = 0V | 4 |
| Class D mode CTRL voltage threshold | VClassD | 2 | 3.3 | 5 | V | 4 | |
| Class AB mode CTRL voltage threshold | VClassAB | 0.9 | 1.2 | 1.5 | V | 4 | |
| Shutdown mode CTRL voltage threshold | VSD | 0 | 0.2 | 0.5 | V | 4 | |
| Internal feedback resistor | 300 | kΩ | 8 | ||||
| Quiescent current | IDD | 4 | mA | VDD=9V, CLASS AB | 4 | ||
| Quiescent current | IDD | 15 | mA | VDD=9V, CLASS D | 4 | ||
| Quiescent current | IDD | 17 | mA | VDD=12V, CLASS D | 4 | ||
| Output offset voltage | VOS | 5 | mV | VIN=0V, Gain=20dB | 4 | ||
| Power supply rejection ratio | PSRR | -85 | dB | 217Hz | 4 | ||
| Power supply rejection ratio | PSRR | -82 | dB | 20kHz | 4 | ||
| Common-mode rejection ratio | CMRR | -80 | dB | 4 | |||
| Modulation frequency | fSW | 440 | kHz | 4 | |||
| Efficiency | η | 92 | % | VDD=12V, RL=8Ω | 4 | ||
| Efficiency | η | 85 | % | VDD=12V, RL=4Ω | 4 | ||
| Mode switching time | tMOD | 0.1 | ms | 4 | |||
| Total harmonic distortion plus noise | THD+N | 0.03 | % | Gain=20dB, f=1kHz, RL=8Ω, PO=1W | 4 | ||
| Signal-to-noise ratio | SNR | -92 | dB | Gain=20dB, f=1kHz, RL=8Ω, VDD=12V, PO=10W | 4 | ||
| Overtemperature protection threshold | OTP | 160 | ℃ | 4 | |||
| Overtemperature hysteresis | OTH | 20 | ℃ | 4 | |||
| Output power | PO | 5.5 | W | VDD=7.4V, THD=1%, f=1kHz, CLASS D, RL=4Ω | 5 | ||
| Output power | PO | 7 | W | VDD=7.4V, THD=10%, f=1kHz, CLASS D, RL=4Ω | 5 | ||
| Output power | PO | 8 | W | VDD=9.0V, THD=1%, f=1kHz, CLASS D, RL=4Ω | 5 | ||
| Output power | PO | 10 | W | VDD=9.0V, THD=10%, f=1kHz, CLASS D, RL=4Ω | 5 | ||
| Output power | PO | 6 | W | VDD=9.0V, THD=10%, f=1kHz, CLASS D, RL=8Ω | 5 | ||
| Output power | PO | 15 | W | VDD=12V, THD=1%, f=1kHz, CLASS D, RL=4Ω | 5 | ||
| Output power | PO | 18 | W | VDD=12V, THD=10%, f=1kHz, CLASS D, RL=4Ω | 5 | ||
| Thermal resistance junction-to-case | θJC | 10 | oC/W | 3 | |||
| Thermal resistance junction-to-ambient | θJA | 60 | oC/W | 3 |
CAD (KiCad official)
- Symbol:
NS4110B - Footprint:
Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm - 3D model: eSOP-8 (KiCad packages3D, STEP)
- 3D model files:
ns4110b-etched.step/ns4110b-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ns4110b.step/ns4110b.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shenzhen Nsiway Tech datasheet (11 pp, sha256
5fcb6e6f2ee73dfa, retrieved 2026-10-17, 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).