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TPA3112D1 Fiches technique(PDF) 2 Page - Texas Instruments

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No de pièce TPA3112D1
Description  25-W FILTER-FREE MONO CLASS-D AUDIO POWER AMPLIFIER with SPEAKER GUARD?
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

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TPA3112D1
SLOS654A – SEPTEMBER 2009 – REVISED JULY 2010
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.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)
(1)
UNIT
VCC
Supply voltage
AVCC, PVCC
–0.3 V to 30 V
SD, FAULT,GAIN0, GAIN1
–0.3 V to VCC + 0.3 V
VI
Interface pin voltage
PLIMIT
–0.3 V toGVDD + 0.3 V
INN, INP
–0.3 V to 6.3 V
Continuous total power dissipation
See Dissipation Rating Table
TA
Operating free-air temperature range
–40°C to 85°C
TJ
Operating junction temperature range(2)
–40°C to 150°C
Tstg
Storage temperature range
–65°C to 150°C
RL
Minimum Load Resistance
BTL
3.2
Human body model (3) (all pins)
±2 kV
Electrostatic discharge
Charged-device model (4) (all pins)
±500 V
(1)
Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operations of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2)
The TPA3112D1 incorporates an exposed thermal pad on the underside of the chip. This acts as a heatsink, and it must be connected
to a thermally dissipating plane for proper power dissipation. Failure to do so may result in the device going into thermal protection
shutdown. See TI Technical Briefs SCBA017D and SLUA271 for more information about using the QFN thermal pad. See TI Technical
Briefs SLMA002 for more information about using the HTQFP thermal pad.
(3)
In accordance with JEDEC Standard 22, Test Method A114-B.
(4)
In accordance with JEDEC Standard 22, Test Method C101-A
TYPICAL DISSIPATION RATINGS
PACKAGE(1)
TA ≤ 25°C
DERATING FACTOR
TA = 85°C
qJP
yJT
28 pin TSSOP
0.72
4.98 W
25.1 °C/W
2.59 W
0.45 °C/W
(PWP)
°C/W
(1)
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
VCC
Supply voltage
PVCC, AVCC
8
26
V
VIH
High-level input voltage
SD, GAIN0, GAIN1
2
V
VIL
Low-level input voltage
SD, GAIN0, GAIN1
0.8
V
VOL
Low-level output voltage
FAULT, RPULLUP=100kΩ, VCC=26V
0.8
V
IIH
High-level input current
SD, GAIN0, GAIN1, VI = 2, VCC = 18 V
50
µA
IIL
Low-level input current
SD, GAIN0, GAIN1, VI = 0.8V, VCC = 18 V
5
µA
TA
Operating free-air temperature
–40
85
°C
2
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Copyright © 2009–2010, Texas Instruments Incorporated
Product Folder Link(s): TPA3112D1


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