NS4150B
NS4150B is 3W Mono Class D Audio Amplifier manufactured by Nsiway.
Features
- Operating voltage:3.0- 5.0V.
- Output power: 2.8W(5V/4Ω,THD=10%).
- 0.1%THD(0.5W/3.6V).
- Efficiency up to 88%.
- High PSRR (80d B at 217Hz).
- Filterless Class D structure.
- Excellent full bandwidth EMI suppression capability.
- Excellent power on and power off noise suppression.
- Low quiescent current:4m A (VDD=3.6V, No load).
- Overcurrent protection,overheat protection and under voltage protection.
- MSOP8 packages are available.
2 Applications
- Pads.
- Automobile data recorders.
- Bluetooth speakers.
4 Typical application circuit
3 Description
The NS4150B is a Low EMI,filterless,3W mono Class D audio amplifier.NS4150B uses advanced technology to greatly reduce EMI interference in the full bandwidth range, minimizing the impact on other ponents.
NS4150B has overcurrent protection,overheat protection and under voltage protection functions, effectively protect the chip from being damaged in abnormal working conditions.Using spread spectrum technology to fully optimize the new circuit design, up to 90% efficiency is more suitable for portable audio products .
The NS4150B's filterless PWM modulation structure and gain built-in mode reduce external ponents, PCB area and system cost.
The NS4150B is available in SOP8 and MSOP8 packages and is rated for operating temperatures ranging from -40 ° C to 85 ° C.
2022Copyright © Nsiway Technology
深圳市纳芯威科技有限公司
SHENZHENNSIWAYTECHNOLOGY CO.,LTD
5 Pin Configuration
Pins of MSOP-8 are shown as follows.
NS4150B Jun.2022 V1.1
Pin NO.
Pin Name
Description
CTRL
Operating control, shutdown at low level.
Internal mon mode voltage bypass capacitor pin, connect 1u F
Bypass capacitor to GND
Audio positive...
