
TAS5100A
SLES030 FEBRUARY 2002
10
www.ti.com
recommended operating conditions (nominal output power = 30 W (RMS), TA = 25°C)
thermal data
PARAMETER
MIN
NOM
MAX
UNIT
Shutdown junction temperature, TJ(SD)
150
°C
Warning junction temperature, TJ(W)
130
°C
Operating ambient temperature, TA
0
25
70
°C
Thermal resistance junction-to-case,
θjc
2 oz. trace and copper pad with solder
0.32
°C/W
Thermal resistance junction-to-ambient,
θja
2 oz. trace and copper pad with solder
23.5
°C/W
Thermal resistance junction-to-case,
θjc
2 oz. trace and copper pad without solder
0.32
°C/W
Thermal resistance junction-to-ambient,
θja
2 oz. trace and copper pad without solder
44.3
°C/W
One of the most influential components on the thermal performance of a package is board design. In order to take full advantage of the heat
dissipating abilities of the PowerPAD packages, a board must be used that acts similar to a heat sink and allows for the use of the exposed (and
solderable), deep downset pad. See Appendix A of the PowerPAD Thermally Enhanced Package application note, TI literature number SLMA002
and the Thermal Design of the PowerPad PCB Layout section of the System Design Considerations for True Digital Audio Power Amplifiers
application note, TI literature number SLAA117.
RL = 4 to 8
PARAMETER
MIN
NOM
MAX
UNIT
Digital
DVDD to DVSS
3
3.3
3.6
V
PVDDA2 to PVSS
16.5
22
24
Supply voltage
Regulator
PVDDB2 to PVSS
16.5
22
24
V
Supply voltage
Regulator
PVDDA2 to PVSS}
10.5
16.5
V
PVDDB2 to PVSS}
10.5
16.5
Connect LDROUTA to PVDDA2 and connect LDROUTB to PVDDB2. Under this condition H-Bridge forward on-state resistance is increased.
This increases internal power dissipation. Maximum output power may need to be reduced to meet thermal conditions.
RL = 8
PARAMETER
MIN
NOM
MAX
UNIT
Supply voltage
Power
PVDDA1 to DVSS
0
26
27
V
Supply voltage
Power
PVDDB1 to PVSS
0
26
27
V
RL = 6
PARAMETER
MIN
NOM
MAX
UNIT
Supply voltage
Power
PVDDA1 to DVSS
0
23
24
V
Supply voltage
Power
PVDDB1 to PVSS
0
23
24
V
RL = 4
PARAMETER
MIN
NOM
MAX
UNIT
Supply voltage
Power
PVDDA1 to DVSS
0
20
21
V
Supply voltage
Power
PVDDB1 to PVSS
0
20
21
V