TPA311DR Texas Instruments - Yeehing Electronics

350-mW, mono, Class-AB audio amplifier with bridge tied load to single-ended switching mode

Pricing (USD)

Quantity	Unit Price
1 — 99	0.783
100 — 249	0.602
250 — 999	0.443
1,000 +	0.22

The above prices are for reference only.

Specifications

Manufacturer	Texas Instruments
Product Category	Audio Amplifiers
RoHS	Y
Series	TPA311
Product	Audio Amplifiers
Class	Class-AB
Output Power	700 mW
Mounting Style	SMD/SMT
Type	1-Channel Mono or 2-Channel Stereo
Package / Case	SOIC-8
Audio - Load Impedance	8 Ohms
THD plus Noise	1.3 %
Supply Voltage - Max	5.5 V
Supply Voltage - Min	2.5 V
Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 85 C
Packaging	Reel
Description/Function	Speaker
Height	1.58 mm
Input Type	Single
Length	4.9 mm
Output Type	1-Channel Mono, 2-Channel Stereo
Supply Type	Single
Width	3.91 mm
Brand	Texas Instruments
Number of Channels	2 Channel
Supply Current - Max	1.5 mA
Development Kit	TPA311EVM
GBP - Gain Bandwidth Product	1.4 MHz
Operating Supply Current	700 uA
Operating Supply Voltage	3 V, 5 V
Output Signal Type	Differential, Single
Pd - Power Dissipation	725 mW
Product Type	Audio Amplifiers
PSRR - Power Supply Rejection Ratio	78 dB
Factory Pack Quantity	2500
Subcategory	Audio ICs
Unit Weight	0.002677 oz

For more information, please refer to datasheet

Documents

TPA311DR Datasheet

More Information

The TPA311 is a bridge-tied load (BTL) or single-ended (SE) audio power amplifier developed especially for low-voltage applications where internal speakers and external earphone operation are required. Operating with a 3.3-V supply, the TPA311 can deliver 250-mW of continuous power into a BTL 8- load at less than 1% THD+N throughout voice band frequencies. Although this device is characterized out to 20 kHz, its operation was optimized for narrower band applications such as cellular communications. The BTL configuration eliminates the need for external coupling capacitors on the output in most applications, which is particularly important for small battery-powered equipment. A unique feature of the TPA311 is that it allows the amplifier to switch from BTL to SE on the fly when an earphone drive is required. This eliminates complicated mechanical switching or auxiliary devices just to drive the external load. This device features a shutdown mode for power-sensitive applications with special depop circuitry to virtually eliminate speaker noise when exiting shutdown mode and during power cycling. The TPA311 is available in an 8-pin SOIC surface-mount package and the surface-mount PowerPAD MSOP, which reduces board space by 50% and height by 40%.