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TPA005D12DCA Arkusz danych(PDF) 4 Page - Texas Instruments

Numer części TPA005D12DCA
Szczegółowy opis  2-W STEREO CLASS-D AUDIO POWER AMPLIFIER
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Producent  TI [Texas Instruments]
Strona internetowa  http://www.ti.com
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TPA005D12DCA Arkusz danych(HTML) 4 Page - Texas Instruments

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TPA005D12
2-W STEREO CLASS-D AUDIO POWER AMPLIFIER
SLOS241B – AUGUST 1999 – REVISED MARCH 2000
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Class-D amplifier faults
Table 1. Class-D Amplifier Fault Table
FAULT 0†
FAULT 1†
DESCRIPTION
1
1
No fault. — The device is operating normally.
0
1
Charge pump under-voltage lock-out (VCP-UV) fault. — All low-side transistors are turned on, shorting the load to
ground. Once the charge pump voltage is restored, normal operation resumes, but FAULT1 is still active. FAULT1 is
cleared by cycling MUTE, SHUTDOWN, or the power supply.
1
0
Over-current fault. — The output transistors are all switched off. This causes the load to be in a high-impedance state.
This is a latched fault and is cleared by cycling MUTE, SHUTDOWN, or the power supply.
0
0
Thermal fault. — All the low-side transistors are turned on, shorting the load to ground. This is latched fault and is
cleared by cycling MUTE, SHUTDOWN, or the power supply.
† These logic levels assume a pullup to PVDD from the open-drain outputs.
absolute maximum ratings over operating free-air temperature range, TC = 25°C (unless otherwise
noted)
Supply voltage, VDD (PVDD, LPVDD, RPVDD, VDD)
5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VI (SHUTDOWN, MUTE)
– 0.3 V to 5.8 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output current, IO (FAULT0, FAULT1), open drain terminated
1 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charge pump voltage, VCP
PVDD + 15 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous H-bridge output current
2 A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pulsed H-Bridge output current, each output, Imax (see Note 1)
5 A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation
See Dissipation Ratings Table
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating virtual junction temperature range, TJ
–40
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating case temperature range, TC
–40
°C to 125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
–40
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
260
°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
† 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.
NOTE 1: Pulse duration = 10 ms, duty cycle
v 2%
DISSIPATION RATING TABLE
PACKAGE
TA ≤ 25°C†
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
TA = 85°C
POWER RATING
TA = 125°C
POWER RATING
DCA
5.6 W
44.8 mW/
°C
3.6 W
2.9 W
1.1 mW
† Please see the Texas Instruments document, PowerPAD Thermally Enhanced Package Application Report (literature number
SLMA002), for more information on the PowerPAD package. The thermal data was measured on a PCB layout based on the
information in the section entitled
Texas Instruments Recommended Board for PowerPAD on page 33 of the before mentioned
document.
recommended operating conditions
MIN
NOM
MAX
UNIT
Supply voltage, PVDD, LPVDD, RPVDD, VDD
4.5
5.5
V
High-level input voltage, VIH
4.25
V
Low-level input voltage, VIL
0.75
V
Audio inputs, LINN, LINP, RINN, RINP, differential input voltage
1
VRMS
PWM frequency
150
450
kHZ


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