Shenzhen Nsiway Tech

NS4158

4mA 3V~5.25V 1-Channel 5Wx1@2Ω Class D SOIC-8 Audio Amplifiers

SOIC-8RoHSActive

Anti-distortion, ultra-low EMI, filter-free, mono digital audio power amplifier

Manufacturer: Shenzhen Nsiway Tech
Manufacturer part #: NS4158
Store part #: C2890042
Package / case: SOIC-8
Category: Audio Amplifiers
Packaging: Tape & Reel (TR)

Datasheet (PDF)

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100% Authentic · 30-Day Return or Replacement · policy

9,410 in stock

#C2890042

Stock & price checked 6 days ago

Quantity	Unit price	Pack price
5+	₹27.12	₹135.60
50+	₹21.79	₹1,089.50
150+	₹19.51	₹2,926.50
500+	₹16.68	₹8,340.00
3,000+	₹12.89	₹38,670.00
6,000+	₹12.13	₹72,780.00

Quantity (min 5, multiples of 5)

5 × ₹27.12

₹135.60

excl. GST

₹160.01 incl. 18% GST

Need volume or a scheduled delivery? Request a quote

Dispatch in 7–10 working days
GST invoice with every order
Standard pack: 3,000 per reel

NS4158

₹135.60 for 5 + GST

Specifications

Quiescent Current: 4mA
Voltage - Supply: 3V~5.25V
Features: Filterless architecture;Built-in audio processing;Enable/shutdown function;ESD protection;Automatic mute/no-noise switch
Total Harmonic Distortion + Noise (THD+N): 0.5%
Operating Temperature: -40℃~+85℃
Number of Inputs: 1 Single-Ended Input
Signal-to-Noise Ratio: 75dB
Speaker Channels: 1-Channel
Efficiency: 90%
Output Power: 5Wx1@2Ω
Class: Class D
Power Supply Rejection Ratio (PSRR): -80dB

Packaging & compliance

RoHS: RoHS
Lifecycle: Active
Packaging: Tape & Reel (TR)
Standard pack: 3,000 / Reel
Sold per: Piece
Minimum order: 5 (multiples of 5)
Unit weight: 0.163 g

Overview

NS4158 is a mono digital audio power amplifier featuring anti-clipping functionality, ultra-low EMI, filterless operation, and 5W high efficiency. The unique anti-clipping function dynamically adjusts the system gain by detecting distortion in the output signal, effectively preventing overload output from damaging the speaker while delivering a comfortable listening experience. In practical applications, the amplifier can be configured to operate in anti-clipping mode or normal mode via either software or hardware control. Software control is implemented through one-wire pulse control, while hardware control is implemented through logic level control, offering great application flexibility. NS4158 employs advanced technology to significantly reduce EMI interference across the full bandwidth, minimizing impact on other components. Its filterless PWM modulation architecture and built-in feedback resistors reduce external component count, PCB area, and system cost. At a supply voltage of 5V, the NS4158 can deliver 5W of output power into a 2Ω load. The NS4158 integrates overcurrent protection, overtemperature protection, and undervoltage protection, effectively safeguarding the device against damage under abnormal operating conditions. Leveraging spread-spectrum technology to fully optimize the new circuit design, efficiency of up to 90% or higher makes it well suited for audio systems requiring low-voltage, high-power output. The NS4158 is available in an SOP8 package with a rated operating temperature range of -40°C to 85°C.