TAS5112A_15 Datasheet, PDF (3/30 Pages) Texas Instruments – DIGITAL AMPLIFIER POWER STAGE

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Absolute Maximum Ratings
over operating free-air temperature range unless otherwise noted⁽¹⁾
TAS5112A
DVDD TO DGND
GVDD TO GND
PVDD_X TO GND (dc voltage)
PVDD_X TO GND (spike voltage⁽²⁾)
OUT_X TO GND (dc voltage)
OUT_X TO GND (spike voltage⁽²⁾)
BST_X TO GND (dc voltage)
BST_X TO GND (spike voltage⁽²⁾)
GREG TO GND ⁽³⁾
PWM_XP, RESET, M1, M2, M3, SD,
OTW
Maximum operating junction
temperature, T_J
Storage temperature
UNITS
–0.3 V to 4.2 V
33.5 V
33.5 V
48 V
33.5 V
48 V
48 V
53 V
14.2 V
–0.3 V to DVDD + 0.3 V
–40°C to 150°C
–40°C to 125°C
(1) _{Stresses beyond those listed under “absolute maximum ratings”}
may cause permanent damage to the device. These are stress
ratings only, and functional operation 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 duration of voltage spike should be less than 100 ns; see}
application note SLEA025.
(3) _{GREG is treated as an input when the GREG pin is overdriven by}
GVDD of 12 V.
TAS5112A
SLES094B - OCTOBER 2003 - REVISED JUNE 2008
Package Dissipation Ratings
PACKAGE
56-pin DFD TSSOP
56-pin DCA TSSOP
R_θJC
(°C/W)
1.14
1.14
R_θJA
(°C/W)
See Note 4
See Note 4
(4) _{The TAS5112A package is thermally enhanced for conductive}
cooling using an exposed metal pad area. It is impractical to use the
device with the pad exposed to ambient air as the only heat sinking
of the device.
For this reason, R_θJA, a system parameter that characterizes the
thermal treatment, is provided in the Application Information section
of the data sheet. An example and discussion of typical system
R_θJA values are provided in the Thermal Information section. This
example provides additional information regarding the power
dissipation ratings. This example should be used as a reference to
calculate the heat dissipation ratings for a specific application. TI
application engineering provides technical support to design
heatsinks if needed.
Ordering Information
T_A
0°C to 70°C
0°C to 70°C
PACKAGE
TAS5112ADFD
TAS5112ADCA
DESCRIPTION
56-pin small TSSOP
56-pin small TSSOP
For the most current specification and package
information, refer to our Web site at www.ti.com.
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