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TPA3112D1PWP Scheda tecnica(PDF) 2 Page - Texas Instruments

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Il numero della parte TPA3112D1PWP
Spiegazioni elettronici  25-W FILTER-FREE MONO CLASS-D AUDIO POWER AMPLIFIER with SPEAKER GUARD?
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Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
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TPA3112D1
SLOS654C – SEPTEMBER 2009 – REVISED JULY 2012
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
–0.3 V to VCC + 0.3 V
SD, FAULT,GAIN0, GAIN1, AVCC (Pin 14)
< 10 V/ms
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 Thermal Inforamtion 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
THERMAL INFORMATION
TPA3112D1
THERMAL METRIC(1)(2)
UNITS
PWP (28 PINS)
θJA
Junction-to-ambient thermal resistance
30.3
θJCtop
Junction-to-case (top) thermal resistance
33.5
θJB
Junction-to-board thermal resistance
17.5
°C/W
ψJT
Junction-to-top characterization parameter
0.9
ψJB
Junction-to-board characterization parameter
7.2
θJCbot
Junction-to-case (bottom) thermal resistance
0.9
(1)
For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
(2)
For thermal estimates of this device based on PCB copper area, see the TI PCB Thermal Calculator
2
Submit Documentation Feedback
Copyright © 2009–2012, Texas Instruments Incorporated
Product Folder Link(s): TPA3112D1


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