SGM2822

アクティブ

2.4W Low EMI Class-D Audio Power Amplifier with Auto-Recovering Short-Circuit Protection

The SGM2822 is a high efficiency, low EMI, filterless, Class-D audio amplifier with auto-recovering short-circuit protection. It operates from 2.5V to 5.5V supply voltage for 8Ω load. When powered with 5.0V supply voltage, the SGM2822 is capable of delivering 1.7W into an 8Ω load, with 10% THD+N.

As a Class-D audio amplifier, the SGM2822 features 88% efficiency and 70dB PSRR at 217Hz which make the device ideal for battery-powered high-quality audio applications.

A key benefit of the SGM2822 over typical Class-D audio power amplifiers is that it generates much less EMI emissions, thus greatly simplifying the system design for portable applications. The device includes the over-current and short-circuit protections with auto-recovery, which ensures the device can be operated safely and reliably without system interaction.

特性

Supply Voltage Range:
2.5V to 5.5V for 8Ω Load
2.5V to 4.5V for 4Ω Load
Filterless Class-D Operation
High Efficiency up to 88%
Typical Output Powery：
2.4W (VDD = 4.5V, 4Ω Load, THD+N = 10%)
1.7W (VDD = 5V, 8Ω Load, THD+N = 10%)
1.5W (VDD = 3.6V, 4Ω Load, THD+N = 10%)
0.88W (VDD = 3.6V, 8Ω Load, THD+N = 10%)
Low THD+N: 0.03% (VDD = 3.6V, f = 1kHz, RL = 8Ω, PO = 0.5W)
Low Quiescent Current: 2.1mA at VDD = 3.6V
Maximum Gain: 24dB (15.9V/V)
Low Shutdown Current: 0.1µA
High PSRR: 70dB at 217Hz
No Bypass Capacitor Required for the
Common-Mode Bias
Under-Voltage Lockout
Auto-Recovering Over-Current and Short-Circuit Protections
Thermal Overload Protection
Low EMI Design
Available in Green UTQFN-1.2×1.2-9L Package

アプリケーション

Mobile Phones
Portable Navigation Devices
Multimedia Internet Devices
Portable Speakers

注文書

Part Number	Status	Package	Pins	Pd-Free	RoHS	REACH	Green	MSL Rating	Operating Temperature Range	Material Content	Reliability Report	Unit Resale Price* (Volume Range: in USD)	Lead Time** (Volume Range: Days)
SGM2822YUVC9G/TR	アクティブ	UTQFN-1.2×1.2-9L	9	YES	YES	YES	YES	MSL1	-40℃ to +85℃	閲覧	閲覧

* 再販価格は参考価格です。正式な見積もりについては、代理店にお問い合わせください。

** 提供されるリードタイムは参考情報であり、異なる状況に応じて変更される可能性があります。