TDA2004A.pdf

TDA2004A

10 + 10W STEREO AMPLIFIER FOR CAR RADIO

Its main features are :

Low distortion.

Low noise .

High reliability of the chip and of the package with

additional safety during operation thanks to protec-

tions against :

. LOAD DUMP VOLTAGE SURGE

. FORTUITOUS OPEN GROUND

Space and cost saving : very low number of exter-

nal components, very simple mounting system with

no electrical isolation between the package and the

heatsink.

MULTIWATT11

ORDERING NUMBER : TDA2004A

DESCRIPTION

The TDA2004A is a class B dual audio power am-

plifier in MULTIWATT [ package specifically desi-

gned for car radio applications ; stereo amplifiers are

easily designed using this device that provides a

high current capability (up to 3.5 A) and that can dri-

ve very low impedance loads (down to 1.6 W ).

PIN CONNECTION (top view)

March 1995

1/10

. OUTPUT AC SHORT CIRCUIT TO GROUND

. VERY INDUCTIVE LOADS

. OVERRATING CHIP TEMPERATURE

TDA2004A

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

V S

Opearting Supply Voltage

V S

DC Supply Voltage

V S

Peak Supply Voltage (for 50ms)

I O (*) Output Peak Current (non repetitive t = 0.1ms)

4.5

I O (*) Output Peak Current (repetitive f

10Hz)

3.5

P tot

Power Dissipation at T case =60

T j ,T stg Storage and Junction Temperature

–40 to 150

(*) The max. output current is internally limited.

THERMAL DATA

Symbol

Parameter

Value

Unit

R th j-case Thermal Resistance Junction-case

Max.

C/W

ELECTRICAL CHARACTERISTICS (Refer to the test circuit, T amb =25 ° C, G V = 50dB,

Rt h (heatsink) =4 ° C/W, unless otherwise specified)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

V S

Supply Voltage

V O

Quiescent Output Voltage

VS = 14.4V

V S = 13.2V

6.6

6.0

7.2

6.6

7.8

7.2

I d

Total Quiescent Drain Current

V S = 14.4V

V S = 13.2V

120

I SB

Stand-by Current

Pin 3 grounded

P O

Output Power (each channel)

f = 1KHz, d = 10%

V S = 14.4V

R L =4

6.5

10(*)

R L = 1.6

V S = 13.2V

R L =3.2

6.5

R L = 1.6

V S = 16V; R L =2

Distortion (each channel)

f = 1KHz

V S = 14.4V; R L =4

0.2

P O = 50mW to 4W

V S = 14.4V; R L =2

0.3

P O = 50mW to 6W

V S = 13.2V; R L = 3.2

0.2

P O = 50mW to 3W

V S = 13.2V; R L = 1.6

0.3

P O = 50mW to 6W

Cross Talk

V S = 14.4V

V O = 4Vrms R L =4 W

f = 1KHz

f = 10KHz R g =5K

V i

Input Saturation Voltage

300

2/10

R L =3.2

R L =2

TDA2004A

ELECTRICAL CHARACTERISTICS (continued

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

R i

Input Resistance (non inverting input) f = 1KHz

200

f L

Low Frequency Roll off (-3dB)

R L =2

R L = 3.2

R L = 1.6

f H

High Frequency Roll off (-3dB)

R L = 1.6

to 4

KHz

G V

Voltage gain (open loop)

f = 1KHz

Voltage gain (closed loop)

f = 1KHz

closed loop gain matching

0.5

e N

Total Input noise Voltage

R g = 10K

(**)

1.5

SVR

Supply Voltage Rejection

f ripple = 100Hz; R g = 10K W

C3 = 10

FV ripple = 0.5Vrms

Efficiency

V S = 14.4V f = 1KHz

R L =4

P O = 6.5W

P O = 10W

V S = 13.2V f = 1KHZ

R L =3.2

P O = 6.5W

R L = 1.6

P O = 10W

T J

Thermal Shutdown Junction

Temperature

145

Notes : (*) 9.3W without Bootstrap

(**) Bandwith Filter : 22Hz to 22KHz.

Figure 1 : Test and Application Circuit.

3/10

R L =4

R L =2

TDA2004A

Figure 2 : P.C. Board and Component layout of the fig. 1 (scale 1 : 1).

Figure 3 : Quiescent Output Voltage vs.

Supply Voltage.

Figure 4 : Quiescent Drain Current vs.

Supply Voltage.

4/10

TDA2004A

Figure 5 : Distortion vs. Output Power.

Figure 6 : Output Power vs. Supply Voltage.

Figure 7 : Output Power vs. Supply Voltage.

Figure 8 : Distortion vs. Frequency.

Figure 9 : Distortion vs. Frequency.

Figure 10 : Supply Voltage Rejection vs. C 3 .

5/10

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