Specification	TPA6135A2RTET

Features	Short-Circuit and Thermal Protection, Differential Inputs, Depop, Shutdown
Max Output Power x Channels @ Load	25 mW, 16 Ohm, 2 channels
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Type	Headphones, 2-Channel (Stereo)
Package / Case	16-WFQFN Exposed Pad
Supplier Device Package	16-WQFN (3x3)
Type	Class AB
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2.3 V

TPA6135A2 Series

25-mW, stereo, analog input headphone amplifier with Hi-Z mode

Part	Mounting Type	Supplier Device Package	Features	Type	Package / Case	Max Output Power x Channels @ Load	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply [Min]	Voltage - Supply [Max]	Output Type	Utilized IC / Part	Supplied Contents	Amplifier Type	Board Type
Texas Instruments TPA6135A2RTET	Surface Mount	16-WQFN (3x3)	Depop Differential Inputs Short-Circuit and Thermal Protection Shutdown	Class AB	16-WFQFN Exposed Pad	2 channels 16 Ohm 25 mW	85 °C	-40 °C	2.3 V	5.5 V	Headphones 2-Channel (Stereo)
Texas Instruments TPA6135A2EVM						2 channels 16 Ohm 25 mW			2.5 V	5.5 V	Headphones 2-Channel (Stereo)	TPA6135A2	Board(s)	Class AB	Fully Populated

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	$ 2.29
		10	$ 2.05
		25	$ 1.94
		100	$ 1.65
	Digi-Reel®	1	$ 2.29
		10	$ 2.05
		25	$ 1.94
		100	$ 1.65
	Tape & Reel (TR)	250	$ 1.13
		500	$ 1.04
		750	$ 1.00
		1250	$ 0.96
Texas Instruments	SMALL T&R	1	$ 1.89
		100	$ 1.56
		250	$ 1.12
		1000	$ 0.84

Description

General part information

TPA6135A2 Series

The TPA6135A2 (sometimes referred to as TPA6135) is a DirectPath™ stereo headphone amplifier that eliminates the need for external dc-blocking output capacitors. Differential stereo inputs and built-in resistors set the device gain, further reducing external component count. Gain is selectable at 0 dB or 6 dB. The amplifier drives 25 mW into 16speakers from a single 2.3 V supply. The TPA6135A2 (TPA6135) provides a constant maximum output power independent of the supply voltage, thus facilitating the design for prevention of acoustic shock.

The TPA6135A2 (TPA6135) features HI-Z mode which can set the outputs to a high impedance configuration. The fully differential inputs reduce system noise pickup between the audio source and the headphone amplifier. The high power supply noise rejection performance and differential architecture provide increased RF noise immunity. For single-ended input signals, connect INL+ and INR+ to ground.

The device has built-in pop suppression circuitry to completely eliminate disturbing pop noise during turn-on and turn-off. The amplifier outputs have short-circuit and thermal-overload protection along with ±8 kV HBM ESD protection, simplifying end equipment compliance to the IEC 61000-4-2 ESD standard.

Documents

Technical documentation and resources

DIRECTPATHTM STEREO HEADPHONE AMPLIFIER WITH DIFFERENTIAL INPUTS AND HI-Z MODE datasheet (Rev. A)

Data sheet