Specification	TPA6139A2PW

Features	Depop, Thermal Protection, Mute, Short-Circuit
Max Output Power x Channels @ Load	25 mW
Max Output Power x Channels @ Load [x]	32 Ohm, 2
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Type	Headphones, 2-Channel (Stereo)
Package / Case	14-TSSOP
Package / Case [custom]	0.173 "
Package / Case [custom]	4.4 mm
Supplier Device Package	14-TSSOP
Type	Class AB
Voltage - Supply [Max]	3.6 V
Voltage - Supply [Min]	3 V

TPA6139A2 Series

25-mW, stereo, analog input headphone amplifier with programmable gain

Part	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Output Type	Voltage - Supply [Max]	Voltage - Supply [Min]	Type	Features	Supplier Device Package	Max Output Power x Channels @ Load [x]	Max Output Power x Channels @ Load	Package / Case [custom]	Package / Case [custom]	Package / Case	Board Type	Supplied Contents	Amplifier Type
Texas Instruments TPA6139A2PW	Surface Mount	85 °C	-40 °C	Headphones 2-Channel (Stereo)	3.6 V	3 V	Class AB	Depop Mute Short-Circuit Thermal Protection	14-TSSOP	2 32 Ohm	25 mW	0.173 "	4.4 mm	14-TSSOP
Texas Instruments TPA6139A2RGTT	Surface Mount	85 °C	-40 °C	Headphones 2-Channel (Stereo)	3.6 V	3 V	Class AB	Depop Mute Short-Circuit Thermal Protection	16-VQFN (3x3)	2 32 Ohm	25 mW			16-VFQFN Exposed Pad
Texas Instruments TPA6139A2EVM				Headphones 2-Channel (Stereo)	3.6 V	3 V				2 32 Ohm	25 mW				Fully Populated	Board(s)	Class AB

Pricing

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

Distributor	Package	Quantity	$

Digikey	Bulk	1	$ 0.82
		10	$ 0.73
		90	$ 0.57
		270	$ 0.53
		540	$ 0.47
		1080	$ 0.43
Texas Instruments	TUBE	1	$ 0.86
		100	$ 0.66
		250	$ 0.49
		1000	$ 0.35

Description

General part information

TPA6139A2 Series

The TPA6139A2 is a 25-mW, pop-free stereo headphone driver designed to reduce component count, board space and cost. It is ideal for single-supply electronics where size and cost are critical design parameters.

The TPA6139A2 device does not require a power supply greater than 3.3 V to generate its 25 mW, nor does it require a split rail power supply.

The TPA6139A2 device was designed using TI’s patented DirectPath™ technology, which integrates a charge pump to generate a negative supply rail that provides a clean, pop-free ground biased output. The TPA6139A2 is capable of driving 25 mW into a 32-Ω load and 2 Vrms into a 600-Ω load. DirectPath also allows the removal of the costly output DC-blocking capacitors.

Documents

Technical documentation and resources

TPA6139A2 EVM User's Guide

EVM User's guide

AN-1849 An Audio Amplifier Power Supply Design (Rev. C)

Application note

TPA6139A2 DirectPath™ 25-mW Headphone Amplifier With Programmable-Fixed Gain datasheet (Rev. C)

Data sheet

Guidelines for Measuring Audio Power Amplifier Performance (Rev. A)

Application note