TAS5110A

SLES079A – APRIL 2003 – REVISED MAY 2003

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10

RECOMMENDED OPERATING CONDITIONS

(maximum output power = 50 W (RMS), TJ = 25°C)

MIN

NOM

MAX

UNIT

TJ(SD)

Shutdownjunction temperature

150

°C

TJ(W)

Warning junction temperature

125

°C

TC

Operatingtemperature

Commercial

0

25

70

°C

R

θJC(2) Thermalresistancejunction-to-case

2 oz trace and copper pad without solder

1.6

°C/W

R

θJA(2) Thermalresistancejunction-to-ambient

2 oz. trace and copper pad without solder

44.3

°C/W

(1) 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

dissipatingabilities 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 technical brief, TI literature number SLMA002.

(2) For the DAD package.

MIN

NOM

MAX

UNIT

Digital

DVDD to DVSS

3

3.3

3.6

V

PVDDA2 to PVSS

16.5

22

26.5

Supply voltage

Regulator

PVDDB2 to PVSS

16.5

22

26.5

V

yg

Regulator

PVDDA2 to PVSS(1)

10.5

16.5

V

PVDDB2 to PVSS(1)

10.5

16.5

(1) ConnectLDROUTA to PVDDA2 and connect LDROUTB to PVDDB2. Under this condition, the H-bridgeforwardon-stateresistanceisincreased.

This increases internal power dissipation. Maximum output power may need to be reduced to meet thermal conditions.

LOAD IMPEDANCE

PVDAA1/PVDDB1

APPROXIMATE MAXIMUM

THD+N AT MAXIMUM POWER

LOAD IMPEDANCE

(

Ω)

PVDAA1/PVDDB1

(VDC)

APPROXIMATE MAXIMUM

OUTPUT POWER (W)

THD+N AT MAXIMUM POWER

AND 1-kHz INPUT(2)

6

27

50

< 10%

6

27

43

< 0.09%

8

27

34

< 0.09%

(1) Dependent on board design and component selection

(2) Test conditions are described in the Thermal Methodology for the 32-Pin DAD Package 50 W, 6-

Ω Test.

STATIC DIGITAL SPECIFICATIONS

PARAMETERS

MIN

MAX

UNIT

VIH

High-level input voltage

2

V

VIL

Low-level input voltage

0.8

V

Input leakage current

–10

10

µA

PARAMETERS

MIN

MAX

UNIT

Internal pullup resistors from SHUTDOWN, ERR0, ERR1 to DVDD

15

k

Ω

VOL

Low-level output voltage (IO = 4 mA)

0.4

V