Specification	TAS2781RYYR

Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Type	1-Channel (Mono)
Supplier Device Package	30-VQFN-HR (4x3.5)
Type	Class D
Voltage - Supply [Max]	24 V, 3.6 V, 5.5 V, 1.95 V
Voltage - Supply [Min]	1.65 V, 3 V, 2.7 V

TAS2781 Series

25 W, 4.5-V to 23-V, digital-input integrated-audio-processing speaker-protection class-D amplifier

Part	Mounting Type	Type	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply [Max]	Voltage - Supply [Min]	Supplier Device Package	Output Type
Texas Instruments TAS2781RYYR	Surface Mount	Class D	85 °C	-40 °C	1.95 V 3.6 V 5.5 V 24 V	1.65 V 2.7 V 3 V	30-VQFN-HR (4x3.5)	1-Channel (Mono)

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 3.19
		10	$ 2.86
		25	$ 2.70
		100	$ 2.34
		250	$ 2.22
		500	$ 2.00
		1000	$ 1.68
	Digi-Reel®	1	$ 3.19
		10	$ 2.86
		25	$ 2.70
		100	$ 2.34
		250	$ 2.22
		500	$ 2.00
		1000	$ 1.68
	Tape & Reel (TR)	3000	$ 1.24
Texas Instruments	LARGE T&R	1	$ 2.22
		100	$ 1.83
		250	$ 1.32
		1000	$ 0.99

Description

General part information

TAS2781 Series

The TAS2781 is a mono, digital input Class-D audio amplifier optimized for efficiently driving high peak power into loudspeakers. The Class-D amplifier is capable of delivering 25 W of continuous power into a 4 Ω load with less than 1% THD+N at a supply voltage of 18 V. The broad voltage input range and the high output power makes this amplifier versatile enough to work with battery or line powered systems.

An on-chip DSP supports Texas Instruments Smart Amp speaker protection algorithm. The integrated speaker voltage and current sense provides for real-time monitoring of loudspeakers.

Y-Bridge power architecture improves amplifier efficiency by internally selecting the supplies for optimal headroom. Brownout prevention scheme with adjustable threshold allows reducing the gain in signal path when the supply drops.