Datasheet

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DISSIPATION RATING TABLE
RECOMMENDED OPERATING CONDITIONS
DC ELECTRICAL CHARACTERISTICS
AC OPERATING CHARACTERISTICS
DC ELECTRICAL CHARACTERISTICS
TPA6112A2
SLOS342A – DECEMBER 2000 – REVISED SEPTEMBER 2004
T
A
≤ 25 ° C DERATING FACTOR T
A
= 70 ° C T
A
= 85 ° C
PACKAGE
POWER RATING ABOVE T
A
= 25 ° C POWER RATING 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 entitled Texas
Instruments Recommended Board forPowerPAD on page 33 of the before mentioneddocument.
MIN MAX UNIT
V
DD
Supply voltage 2.5 5.5 V
T
A
Operating free-air temperature -40 85 ° C
V
IH
, (SHUTDOWN) High-level input voltage 60% x V
DD
V
V
IL
, (SHUTDOWN) Low-level input voltage 25% x V
DD
V
At T
A
= 25 ° C, V
DD
= 2.5 V (Unless Otherwise Noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
OO
Output offset voltage A
V
= 2 V/V 15 mV
PSRR Power supply rejection ratio V
DD
= 3.2 V to 3.4 V 83 dB
I
DD
Supply current SHUTDOWN = 0 V 1.5 3 mA
I
DD(SD)
Supply current in SHUTDOWN mode SHUTDOWN = V
DD
10 50 µA
Z
i
Input impedance >1 M Ω
V
DD
= 3.3 V, T
A
= 25 ° C, R
L
= 16 Ω
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
P
O
Output power (each channel) THD ≤ 0.1%, f = 1 kHz 60 mW
THD+N Total harmonic distortion + noise P
O
= 40 mW, 20 - 20 kHz 0.4%
B
OM
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 P
O
= 50 mW, A
V
= 1 100 dB
V
n
Noise output voltage A
V
= 1 11 µV(rms)
At T
A
= 25 ° C, V
DD
= 5 .5 V (Unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
OO
Output offset voltage A
V
= 2 V/V 15 mV
PSRR Power supply rejection ratio V
DD
= 4.9 V to 5.1 V 76 dB
I
DD
Supply current SHUTDOWN = 0 V 1.5 3 mA
I
DD(SD)
Supply current in SHUTDOWN mode SHUTDOWN = V
DD
60 100 µA
|I
IH
| High-level input current (SHUTDOWN) V
DD
= 5.5 V, V
I
= V
DD
1 µA
|I
IL
| Low-level input current (SHUTDOWN) V
DD
= 5.5 V, V
I
= 0 V 1 µA
Z
i
Input impedance >1 M Ω
3