Description
The NS4215 is a stereo, non-clip, filterless, Class-D audio power amplifier. It operates from 5V to 12V supply
into 8Ω load. When powered with 12V supply voltage, the NS4215 is capable of delivering 8.5W (per channel)
into 8Ω load, with THD+D less than 10%. It operates from 5V to 9V supply into 4Ω load. When powered with 9V
supply voltage, the NS4215 is capable of delivering 7.5W (per channel) into 4Ω load, with THD+D less than 10%.
The NS4215 features a non-clip output control,which detects the output clipping caused by the over-level input
signal and automatically adjusts the dynamic range of the output signal to prevent the distortion of the audio
signal. The non-clip output control also eliminates the output clipping due to a low battery supply voltage.
As a Class-D power amplifier, the NS4215 features high efficiency (up to 80%) and high PSRR (65dB at 217Hz),
which make the device ideal for use in cellular handsets and other portable devices.
The NS4215 is available in TSSOP-24 package and is specified over the -40℃ to +85℃ temperature range.

Features
 Non-clip control to suppress output clipping
 Filterless Class-D operation
 High efficiency up to 80%(8Ω load,Po=7W,PVcc=12V)
 Wide Supply Voltage Range Allows Operation from 5 V to 12 V into 8-Ω Stereo Load
 Wide Supply Voltage Range Allows Operation from 5 V to 9 V into 4-Ω Stereo Load
 Output power at 12V supply
7W×2 (8Ω load, 1% THD+N,BTL Output)
8.5W×2 (8Ω load, 10% THD+N,BTL Output)
14W (4Ω load, 1% THD+N,PBTL Output)
17W (4Ω load, 10% THD+N,PBTL Output)
 Output power at 9V supply
4W×2 (8Ω load, 1% THD+N,BTL Output)
5W×2 (8Ω load, 10% THD+N,BTL Output)
6W×2 (4Ω load, 1% THD+N,BTL Output)
7.5W×2 (4Ω load, 10% THD+N,BTL Output)
8W (4Ω load, 1% THD+N,PBTL Output)
10W (4Ω load, 10% THD+N,PBTL Output)
 Low shutdown current: 1μA (typical)
 Short-circuit & thermal protection
 Packages: TSSOP-24

Applications
 Televisions
 Multimedia internet devices