Specification	TPA0172PWPR

Features	Input Multiplexer, Differential Inputs, Mute, Volume Control, Depop, Shutdown, I2C
Max Output Power x Channels @ Load	2 W
Max Output Power x Channels @ Load [custom]	2
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Type	2-Channel (Stereo) with Stereo Headphones
Package / Case	0.173 in, 4.4 mm
Package / Case	24-PowerTSSOP
Supplier Device Package	24-HTSSOP
Type	Class AB
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	4.5 V

TPA0172 Series

Part	Max Output Power x Channels @ Load [custom]	Max Output Power x Channels @ Load	Output Type	Mounting Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Supplier Device Package	Type	Features	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Package / Case	Supplied Contents	Utilized IC / Part	Board Type	Amplifier Type
Texas Instruments TPA0172PWP	2	2 W	2-Channel (Stereo) with Stereo Headphones	Surface Mount	4.5 V	5.5 V	24-HTSSOP	Class AB	Depop Differential Inputs I2C Input Multiplexer Mute Shutdown Volume Control	85 °C	-40 °C	0.173 in 4.4 mm	24-PowerTSSOP
Texas Instruments TPA0172EVM	2	2 W	2-Channel (Stereo) with Stereo Headphones		4.5 V	5.5 V								Board(s)	TPA0172	Fully Populated	Class AB
Texas Instruments TPA0172PWPR	2	2 W	2-Channel (Stereo) with Stereo Headphones	Surface Mount	4.5 V	5.5 V	24-HTSSOP	Class AB	Depop Differential Inputs I2C Input Multiplexer Mute Shutdown Volume Control	85 °C	-40 °C	0.173 in 4.4 mm	24-PowerTSSOP

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	2000	$ 4.25
Texas Instruments	LARGE T&R	1	$ 6.85
		100	$ 5.59
		250	$ 4.39
		1000	$ 3.73

Description

General part information

TPA0172 Series

The TPA0172 is a stereo audio power amplifier in a 24-pin TSSOP thermally enhanced package capable of delivering 2 W of continuous RMS power per channel into 4-loads. This device utilizes the I2C bus to control its functionality, which minimizes the number of external components needed, simplifies the design, and frees up board space for other features. When driving 1 W into 8-speakers, the TPA0172 has less than 0.2% THD+N from 20 Hz to 20 kHz.

Included within this device is integrated depop circuitry that virtually eliminates transients that cause noise in the speakers at power up, power down, and while transitioning in and out of shutdown mode.

The overall gain of the amplifier is controlled digitally by the volume control registers which are programmed via the I2C interface. At power up, the amplifier defaults to -60 dB in BTL mode, or -66 dB in SE mode. There are four registers that contain the gains: left BTL, right BTL, left SE, and right SE. Each register contains six bits, which allows 64 gain steps from -60 dB to 20 dB in 1.25-dB steps, and two bits that mute the amplifier.

Documents

Technical documentation and resources

2-W Stereo Audio Power Amplifier with I2C Bus datasheet (Rev. C)

Data sheet