Datasheet

TAS5112A
SLES094B - OCTOBER 2003 - REVISED JUNE 2008
www.ti.com
6
RECOMMENDED OPERATING CONDITIONS
MIN TYP MAX UNIT
DVDD Digital supply
(1)
Relative to DGND 3 3.3 3.6 V
GVDD
Supply for internal gate drive and logic
regulators
Relative to GND 16 29.5 30.5 V
PVDD_x Half-bridge supply Relative to GND, R
L
= 6 Ω to 8 Ω 0 29.5 30.5 V
T
J
Junction temperature 0 125 _C
(1)
It is recommended for DVDD to be connected to DREG via a 100-Ω resistor.
ELECTRICAL CHARACTERISTICS
PVDD_X = 29.5 V, GVDD = 29.5 V, DVDD connected to DREG via a 100-Ω resistor, R
L
= 6 Ω, 8X f
s
= 384 kHz, unless otherwise noted
TYPICAL OVER TEMPERATURE
SYMBOL PARAMETER TEST CONDITIONS
T
A
=25°C T
A
=25°C
T
Case
=
75°C
T
A
=40°C
TO 85°C
UNITS
MIN/TYP/
MAX
AC PERFORMANCE, BTL Mode, 1 kHz
R
L
= 8 Ω, THD = 0.2%,
AES17 filter, 1 kHz
40 W Typ
Po
Output power
R
L
= 8 Ω, THD = 10%, AES17
filter, 1 kHz
50 W Typ
Po Output power
R
L
= 6 Ω, THD = 0.2%,
AES17 filter, 1 kHz
50 W Typ
R
L
= 6 Ω, THD = 10%, AES17
filter, 1 kHz
62 W Typ
Po = 1 W/ channel, R
L
= 6 Ω,
AES17 filter
0.03% Typ
THD+N
Total harmonic distortion
+ noise
Po = 10 W/channel, R
L
= 6 Ω,
AES17 filter
0.04% Typ
+
noise
Po = 50 W/channel, R
L
= 6 Ω,
AES17 filter
0.2% Typ
V
n
Output integrated voltage
noise
A-weighted, mute, R
L
= 6 Ω,,
20 Hz to 20 kHz, AES17 filter
260 µV Max
SNR Signal-to-noise ratio A-weighted, AES17 filter 96 dB Typ
DR Dynamic range
f = 1 kHz, A-weighted,
AES17 filter
96 dB Typ
INTERNAL VOLTAGE REGULATOR
DREG Voltage regulator
I
o
= 1 mA,
PVDD = 18 V to 30.5 V
3.1 V Typ
GREG Voltage regulator
I
o
= 1.2 mA,
PVDD = 18 V to 30.5 V
13.4 V Typ
IGVDD
GVDD supply current,
operating
f
S
= 384 kHz, no load, 50%
duty cycle
24
(1)
mA Max
IDVDD
DVDD supply current,
operating
f
S
= 384 kHz, no load 1 5 mA Max
OUTPUT STAGE MOSFETs
R
DSon,LS
Forward on-resistance,
low side
T
J
= 25°C 155 mΩ Typ
R
DSon,HS
Forward on-resistance,
high side
T
J
= 25°C 155 mΩ Typ
(1)
Measured with TI standard manufacturing hardware configuration