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參數資料
| 型號： | TPA005D14DCA |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 音頻放大器 |
| 英文描述： | 2-W STEREO CLASS-D AUDIO POWER AMPLIFIER |
| 中文描述： | 2 - W立體聲D類音頻功率放大器 |
| 文件頁數： | 5/29頁 |
| 文件大小： | 420K |
| 代理商： | TPA005D14DCA |
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TPA005D14
2-W STEREO CLASS-D AUDIO POWER AMPLIFIER
SLOS240A – AUGUST 1999 – REVISED MARCH 2000
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range, T
C
= 25
°
C (unless otherwise
noted)
Supply voltage, V
DD
(PV
DD
, LPV
DD
, RPV
DD
, V
DD
)
Input voltage, V
I
(SHUTDOWN, MUTE, MODE)
Output current, I
O
(FAULT0, FAULT1), open drain terminated
Charge pump voltage, V
CP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous H-bridge output current
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pulsed H-Bridge output current, each output, I
max
(see Note 1)
Continuous total power dissipation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating virtual junction temperature range, T
J
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating case temperature range, T
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–0.3 V to 5.8 V
1 mA
PV
DD
+ 15 V
2 A
5 A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
See Dissipation Ratings Table
–40
°
C to 150
°
C
–40
°
C to 125
°
C
–40
°
C to 150
°
C
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
2%
DISSIPATION RATING TABLE
PACKAGE
TA
≤
25
°
C
POWER RATING
DERATING FACTOR
ABOVE TA = 25
°
C
44.8 mW/
°
C
TA = 70
°
C
POWER RATING
TA = 85
°
C
POWER RATING
TA = 125
°
C
POWER RATING
DCA
5.6 W
3.6 W
2.9 W
1.1 mW
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 PowerPADon page 33 of the before mentioned
document.
recommended operating conditions
MIN
NOM
MAX
UNIT
Supply voltage, PVDD, LPVDD, RPVDD, VDD
High-level input voltage, VIH (MUTE, MODE, SHUTDOWN)
Low-level input voltage, VIL (MUTE, MODE, SHUTDOWN)
Audio inputs, LINN, LINP, RINN, RINP, HPLIN, HPRIN, differential input voltage
4.5
5.5
V
4.25
V
0.75
V
1
VRMS
kHZ
PWM frequency
150
450
electrical characteristics, Class-D amplifier, V
DD
= PV
DD
= LPV
DD
= RPV
DD
= 5 V, R
L
= 4
,
T
A
= 25
°
C, See Figure 1 (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Power supply rejection ratio
VDD = PVDD = LPVDD = RPVDD = 4.5 V to 5.5 V
No output filter connected
–40
dB
IDD
IDD(MUTE)
IDD(SD)
IIH
IIL
Supply current
25
35
mA
Supply current, mute mode
MUTE = 0 V
3.9
10
mA
μ
A
μ
A
μ
A
Supply current, shutdown mode
SHUTDOWN = 0 V
0.2
10
High-level input current
VIH = 5.3 V
VIL = –0.3 V
1
Low-level input current
–1
rDS(on)
Total static drain-to-source on-state
resistance (low-side plus high-side
FETs)
ID = 0.5 A
700
900
m
rDS(on)
Matching, high-side to high-side,
low-side to low-side, same channel
ID = 0.5 A
95%
98%
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