Datasheet

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RECOMMENDED OPERATING CONDITIONS
ELECTRICAL CHARACTERISTICS
TAS5121I
SLES122 – SEPTEMBER 2004
MIN NOM MAX UNIT
DVDD Digital supply
(1)
Relative to DGND 3 3.3 3.6 V
Supply for internal gate drive and logic regu-
GVDD_x Relative to GND 10.8 12 13.2 V
lators
PVDD_x Half-bridge supply Relative to GND, R
L
= 4 Ω 0 30.5 32 V
T
J
Junction temperature 0 125 ° C
(1) It is recommended for DVDD to be connected to DREG via a 100- Ω resistor.
PVDD_X = 30.5 V, GVDD_x = 12 V, DVDD connected to DREG via a 100- Ω resistor, R
L
= 4 Ω , 8X f
s
= 384 kHz, TAS5026
PWM processor, unless otherwise noted
TYPICAL OVER TEMPERATURE
SYMBOL PARAMETER TEST CONDITIONS
T
Case
= MIN/TYP/
T
A
=25 ° C T
A
=25 ° C UNITS
75 ° C MAX
AC PERFORMANCE, BTL Mode, 1 kHz
R
L
= 4 Ω , THD = 10%, AES17 filter 100 W Typ
R
L
= 4 Ω , THD = unclipped, AES17
80 W Typ
P
O
Output power filter
R
L
= 8 Ω , THD = unclipped,
44 W Typ
AD mode
P
O
= 1 W/channel, R
L
= 4 Ω ,
0.09 % Typ
AES17 filter
P
O
= 10 W/channel, R
L
= 4 Ω ,
THD+N Total harmonic distortion + noise 0.15 % Typ
AES17 filter
P
O
= 80 W/channel, R
L
= 4 Ω ,
0.19 % Typ
AES17 filter
A-weighted, R
L
= 4 Ω , 20 Hz to
V
n
Output-integrated noise voltage 300 µ V Max
20 kHz, AES17 filter
SNR Signal-to-noise ratio A-weighted, AES17 filter 95 dB Typ
f = 1 kHz, –60 dB, A-weighted,
DR Dynamic range 95 dB Typ
AES17 filter
INTERNAL VOLTAGE REGULATOR AND CURRENT CONSUMPTION
V Min
DREG Voltage regulator I
o
= 1 mA 3.3
V Max
Total GVDD supply current, f
S
= 384 kHz, no load, 50% duty
IGVDD_x 24 30 mA Max
operating cycle
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 120 132 m Ω Max
R
DSon,HS
Forward on-resistance, high side T
J
= 25 ° C 120 132 m Ω Max
INPUT/OUTPUT PROTECTION
7 V Min
Undervoltage protection limit,
V
uvp,G
7.6
GVDD
8.2 V Max
OTW Overtemperature warning Static 115 ° C Typ
OTE Overtemperature error Static 150 ° C Typ
OC Overcurrent protection See
(1)
. 9.5 A Min
(1) To optimize device performance and prevent overcurrent (OC) protection activation, the demodulation filter must be designed with
special care. See Demodulation Filter Design in the Application Information section of this data sheet and consider the recommended
inductors and capacitors for optimal performance. It is also important to consider PCB design and layout for optimum performance of the
TAS5121I.
5