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参数资料
型号： TPA6112A2DGQ
厂商： TEXAS INSTRUMENTS INC
元件分类： 音频／视频放大
英文描述： 0.15 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO10
封装： GREEN, PLASTIC, MSOP-10
文件页数： 16/22页
文件大小： 701K
代理商： TPA6112A2DGQ
www.ti.com
DISSIPATION RATING TABLE
RECOMMENDED OPERATING CONDITIONS
DC ELECTRICAL CHARACTERISTICS
AC OPERATING CHARACTERISTICS
DC ELECTRICAL CHARACTERISTICS
TPA6112A2
SLOS342A – DECEMBER 2000 – REVISED SEPTEMBER 2004
TA≤ 25°C
DERATING FACTOR
TA = 70°C
TA = 85°C
PACKAGE
POWER RATING
ABOVE TA = 25°C
POWER RATING
DGQ
2.14 W(1)
17.1 mW/
°C
1.37 W
1.11 W
(1)
Please see the Texas Instrumentsdocument, PowerPAD Thermally EnhancedPackage Application
Report (literature number SLMA002), for moreinformation on the PowerPAD package. The thermal
data was measured on a PCBlayout based on the information in the section entitledTexas
Instruments Recommended Board forPowerPAD on page 33 of the before mentioneddocument.
MIN
MAX
UNIT
VDD
Supply voltage
2.5
5.5
V
TA
Operating free-air temperature
-40
85
°C
VIH, (SHUTDOWN)
High-level input voltage
60% x VDD
V
VIL, (SHUTDOWN)
Low-level input voltage
25% x VDD
V
At T
A = 25°C, VDD = 2.5 V (Unless Otherwise Noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOO
Output offset voltage
AV = 2 V/V
15
mV
PSRR
Power supply rejection ratio
VDD = 3.2 V to 3.4 V
83
dB
IDD
Supply current
SHUTDOWN = 0 V
1.5
3
mA
IDD(SD)
Supply current in SHUTDOWN mode
SHUTDOWN = VDD
10
50
A
Zi
Input impedance
>1
M
V
DD = 3.3 V, TA = 25°C, RL = 16
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
PO
Output power (each channel)
THD
≤ 0.1%, f = 1 kHz
60
mW
THD+N
Total harmonic distortion + noise
PO = 40 mW, 20 - 20 kHz
0.4%
BOM
Maximum output power BW
G = 10, THD < 5%
> 20
kHz
Phase margin
Open loop
96
°
Supply ripple rejection ratio
f = 1 kHz
71
dB
Channel/channel output separation
f = 1 kHz
89
dB
SNR
Signal-to-noise ratio
PO = 50 mW, AV = 1
100
dB
Vn
Noise output voltage
AV = 1
11
V(rms)
At T
A = 25°C, VDD = 5 .5 V (Unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VOO
Output offset voltage
AV = 2 V/V
15
mV
PSRR
Power supply rejection ratio
VDD = 4.9 V to 5.1 V
76
dB
IDD
Supply current
SHUTDOWN = 0 V
1.5
3
mA
IDD(SD)
Supply current in SHUTDOWN mode
SHUTDOWN = VDD
60
100
A
|IIH|
High-level input current (SHUTDOWN)
VDD = 5.5 V, VI = VDD
1
A
|IIL|
Low-level input current (SHUTDOWN)
VDD = 5.5 V, VI = 0 V
1
A
Zi
Input impedance
>1
M
3
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