CXAR41286 High Efficiency Class D Audio Amplifier | 2 × 40W Stereo/75W Mono | Wide Voltage 4.5V-26V

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CXAR41286 High Efficiency Class D Audio Amplifier | 2 × 40W Stereo/75W Mono | Wide Voltage 4.5V-26V | Smart Speaker Solution

CXAR41286 is a high-efficiency class d audio power amplifier, supporting 4.5V ~ 26V wide voltage input, outputting 2 × 40W/8Ω in stereo (BTL) mode and 75W/4Ω continuous power (THD + N≤ 10%) in mono (PBTL) mode. Its integrated intelligent power management functions, including limiting protection (PLIMIT), automatic gain control (AGC), over-temperature limiting (TFB) and multiple switching frequency selection, are suitable for high-fidelity audio systems such as smart speakers and LCD televisions, with efficiency> 90% and no external radiator, significantly reducing system cost and volume.

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Product overview

CXAR41286 is a high-efficiency class-D audio power amplifier that supports4.5V ~ 26V Wide Voltage Input, can be output in stereo (BTL) mode2 × 40W/8ΩReachable in Mono (PBTL) mode75W/4ΩContinuous power (THD + N≤ 10%). its integrationSmart Power Management FeaturesIncluding limiting protection (PLIMIT), automatic gain control (AGC), over-temperature limiting (TFB) and multiple switching frequency selection, suitable for high-fidelity audio systems such as smart speakers and LCD TVs,Efficiency> 90% without external radiatorSignificantly reduce system cost and volume.

Core advantages and characteristicskh9嘉泰姆

High Performance Audio Output

* Multi-mode drive：

Stereo mode: 2 × 40W @ 8Ω(24V power supply)

Mono mode: 75W @ 4Ω(24V supply)

* Ultra-wide voltage adaptation4.5V ~ 26V input, compatible with lithium battery and adapter power supply

* Extreme efficiency:>90% conversion efficiency, no radiator design saves space
Smart Power Management

* Dynamic protection mechanism：

Limiting function (PLIMIT): Limit output swing to prevent horn overload damage

Automatic Gain Control (AGC): Suppress input overload noise and improve distortion tolerance

over-temperature limiting (TFB): Automatically reduce the gain when the temperature rises to avoid playback interruption

AM interference suppression: Multi-level switching frequency selectable to optimize RF compatibility

Full-scene protection design

* System level protection: Overvoltage/undervoltage protection, DC detection, short circuit protection, overheat shutdown

* Input flexibility: Support differential/single-ended input, stereo/mono mode switchable

Environmental protection and integration

* Green packageTSOP28-P lead-free and halogen-free package, RoHS compliant

* Streamlined programme: The peripheral circuit is very simple, reducing BOM cost.

Typical application scenarioskh9嘉泰姆

Smart Audio Devices：kh9嘉泰姆

- Wireless smart speaker, Soundbar sound barkh9嘉泰姆
- Pull rod portable speaker, home theater systemkh9嘉泰姆
Consumer Electronics：kh9嘉泰姆
- LCD TV/Monitor Built-in Power Amplifierkh9嘉泰姆
- Car High Power Audio Systemkh9嘉泰姆
Professional scene：kh9嘉泰姆
- Conference system sound reinforcement modulekh9嘉泰姆
- Stage portable listening speakerkh9嘉泰姆

Technical Specification (Product PDF)Return to Top kh9嘉泰姆

If you need detailed PDF specifications, please scan WeChat and contact us. You can also get free samples and technical support.!kh9嘉泰姆

QQ截图20160419174301.jpg kh9嘉泰姆

Product packaging diagramReturn to Topkh9嘉泰姆

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Circuit schematic返回TOPkh9嘉泰姆

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Related Chip Selection GuideReturn to Topkh9嘉泰姆

MonoDClass Audio Power Amplifier Audio Power Amplifier (Analog Input)>DClass
Product Model	Channel	Operating voltage	Output power	signal-to-noise ratio	Encapsulation	Remarks
CXAR41286	Dual channel	4.5V-26V	75W		TSSOP28	Stereo Class D Audio Amplifier
CXAR41287	Dual channel	2.5V to 9.8V	18W		TSSOP20L	Class AB and Class D switch support
CXAR41288	Dual channel	5.0V	3.3 W		SOP-16，TSSOP-20	Full bandwidth EMI suppression performance
CXAR41289	Dual channel	3.6V~6.5V	4.70W		SOP16L	4.7W Anti-clipping Dual Channel Class D Audio Power Amplifier
CXAR41290	Dual channel	3.6V~5.0V	3.3 W		TSSOP-20	3.3W Low EMI Stereo Class D Audio Power Amplifier with Digital Volume Control/Anti-clipping
CXAR41291	Dual channel	8.5V	2 × 9.5W		TSSOP20L	9.5W Anti-clipping Dual Channel Class AB/D Audio Power Amplifier
CXAR41292	Dual channel	8.5V	2 × 9.5W		SOP16L	9.5W Anti-clipping Dual Channel Class D Audio Power Amplifier
CXAR41293	Mono	2.5V to 10V	10W	95dB	SOP8L
CXAR41294	Mono	3.6V~6.5V	4.7W	95dB	SOP8
CXAR41295	Mono	5.0V	5.5 W		SOP8L
CXAR41296	Mono	8.5V	10W		SOP8L	Class AB/Class D switch
CXAR41297	Mono	3.6V~6.5V	4.7W	95dB	DFN8L, SOP8	Class AB/Class D switch
CXAR41298	Mono	5.0V	3.5W	95dB	MSOP10, MSOP10

◀ Previous:Cxaf4104 is a FM free AB/D type optional power amplifier. At 7.4v working voltage, the maximum driving power is 8W (4Ω BTL load thd<10%) and the total harmonic distortion noise in the audio range is less than 1%

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