SGM2822T

アクティブ

3.2W Low EMI Class-D Audio Power Amplifier with Auto-Recovering Short-Circuit Protection

SGM2822T.PDF

The SGM2822T 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. When powered with 5V supply voltage, the SGM2822T is capable of delivering 3.2W into a 4Ω load or 1.8W into an 8Ω load, with 10% THD+N.

As a Class-D audio amplifier, the SGM2822T features 92% efficiency and 87dB PSRR at 217Hz which make the device ideal for battery-powered high-quality audio applications.

A key benefit of the SGM2822T 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
Filterless Class-D Operation
High Efficiency up to 92%
Typical Output Power：
- 3.2W (VDD = 5V, 4Ω Load, THD+N = 10%)
- 1.8W (VDD = 5V, 8Ω Load, THD+N = 10%)
- 1.6W (VDD = 3.6V, 4Ω Load, THD+N = 10%)
- 0.9W (VDD = 3.6V, 8Ω Load, THD+N = 10%)
Low THD+N: 0.02% (V_DD = 3.6V, f = 1kHz, R_L= 8Ω, P_O = 0.5W)
Low Quiescent Current: 2.1mA at V_DD = 3.6V
Internal Equivalent Feedback Resistor: 300kΩ
Low Output Noise: 30μV
Low Shutdown Current: 0.1µA
High PSRR: 87dB 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-1.2×1.2-9LPackage

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)
SGM2822TYUVC9G/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	1-24 units : $0.28/unit 25-99 units : $0.24/unit 100-249 units : $0.2/unit 250-499 units : $0.16/unit 500-999 units : $0.14/unit 1000-9999 units : $0.104/unit	3K-9K : 14 days 10K-99K : 35 days 100K-999K : 70 days 1000K and above : 98 days

* 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。