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TPA6112A2 Datasheet Preview

TPA6112A2 Datasheet

150-mW STEREO AUDIO POWER AMPLIFIER

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www.ti.com
TPA6112A2
SLOS342A – DECEMBER 2000 – REVISED SEPTEMBER 2004
150-mW STEREO AUDIO POWER AMPLIFIER
FEATURES
150 mW Stereo Output
Differential Inputs
PC Power Supply Compatible
– Fully Specified for 3.3 V and 5 V Operation
– Operation to 2.5 V
Pop Reduction Circuitry
Internal Mid-Rail Generation
Thermal and Short-Circuit Protection
Surface-Mount Packaging
– PowerPAD™ MSOP
DGQ PACKAGE
(TOP VIEW)
VO1 1 10 VDD
IN1–
2
9 VO2
IN1+
3
8 IN2–
BYPASS
4
7 IN2+
GND
5
6 SHUTDOWN
DESCRIPTION
The TPA6112A2 is a stereo audio power amplifier with differential inputs packaged in a 10-pin PowerPAD MSOP
package capable of delivering 150 mW of continuous RMS power per channel into 16-loads. Amplifier gain is
externally configured by means of two resistors per input channel and does not require external compensation for
settings of 1 to 10.
TYPICAL APPLICATION CIRCUIT
325 k
Ri
Ri
Right In Ci
(Differential)
+
Ri
Ci Rf
2 IN1–
3 IN1+
4 BYPASS
C(B)
+
Left In
(Differential)
Ci
Ci
Rf
Ri
7 IN2+
Ri 8 IN2–
Rf
325 k
VDD/2
VDD 10
VDD
C(S)
VO1 1
+
C(C)
Bias SHUTDOWN 6
Control
From
Shutdown
Control Circuit
+ VO2 9
– 5 C(C)
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2000–2004, Texas Instruments Incorporated




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TPA6112A2 Datasheet Preview

TPA6112A2 Datasheet

150-mW STEREO AUDIO POWER AMPLIFIER

No Preview Available !

TPA6112A2
SLOS342A – DECEMBER 2000 – REVISED SEPTEMBER 2004
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device
placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
DESCRIPTION (CONTINUED)
THD+N when driving an 16-load from 5 V is 0.03% at 1 kHz, and less than 1% across the audio band of 20 Hz
to 20 kHz. For 32-loads, the THD+N is reduced to less than 0.02% at 1 kHz, and is less than 1% across the
audio band of 20 Hz to 20 kHz. For 10-kloads, the THD+N performance is 0.005% at 1 kHz, and less than
0.5% across the audio band of 20 Hz to 20 kHz.
TA
-40°C to 85°C
AVAILABLE OPTIONS
PACKAGED DEVICE
MSOP (1)
TPA6112A2DGQ
MSOP SYMBOLIZATION
TI APD
(1) The DGQ package isavailable in left-ended tape and reel only (e.g., TPA6112A2DGQR).
TERMINAL
NAME
NO
BYPASS
4
GND
IN1-
IN1+
IN2-
IN2+
SHUTDOWN
VDD
VO1
VO2
5
2
3
8
7
6
10
1
9
Terminal Functions
I/O DESCRIPTION
I Tap to voltage divider for internal mid-supply bias supply. Connect to a 0.1 µF to 1 µF low ESR capacitor
for best performance.
I GND is the ground connection.
I IN1- is the negative input for channel 1.
I IN1+ is the positive input for channel 1.
I IN2- is the negative input for channel 2.
I IN2+ is the positive input for channel 2.
I Puts the device in a low quiescent current mode when held high.
I VDD is the supply voltage terminal.
O VO1 is the audio output for channel 1.
O VO2 is the audio output for channel 2.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature (unless otherwise noted(1))
VDD Supply voltage
VI Input voltage
Continuous total power dissipation
TJ Operating junction temperature range
Tstg Storage temperature range
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
UNITS
6V
-0.3 V to VDD + 0.3 V
internally limited
-40°C to 150°C
-65°C to 150°C
260°C
(1) Stresses beyond thoselisted under absolute maximum ratings may cause permanent damage to the device.These are stress ratings
only, and functional operation of the device at theseor any other conditions beyond those indicated under recommended
operatingconditions is not implied. Exposure to absolute-maximum-rated conditions forextended periods may affect device reliability.
2


Part Number TPA6112A2
Description 150-mW STEREO AUDIO POWER AMPLIFIER
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