SGM2822T (MSOP)

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3W Low EMI Class-D Audio Power Amplifier with Auto-Recovering Short-Circuit Protection

SGM2822T_MSOP-8.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 3W into a 4Ω load or 1.74W into an 8Ω load, with 10% THD+N.

As a Class-D audio amplifier, the SGM2822T features 90% efficiency and 80dB 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.

FEATURES

Supply Voltage Range: 2.5V to 5.5V
Filterless Class-D Operation
High Efficiency up to 90%
Typical Output Power:
- 3W (VDD = 5V, 4Ω Load, THD+N = 10%)
- 1.74W (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% (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: 80dB 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 a Green MSOP-8 Package

APPLICATIONS

Mobile Phones
Portable Navigation Devices
Multimedia Internet Devices
Portable Speakers

Ordering Information

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)
SGM2822TYMS8G/TR	Active	MSOP-8	8	YES	YES	YES	YES	MSL1	-40℃ to +85℃	View	View

* The unit resale price is for reference purposes only. Please contact our distributors for a formal quotation.

** The lead time provided is for reference purposes only and is subject to change based on different circumstances.