TDA7493 datasheet(9/30 Pages) STMICROELECTRONICS

Nome de Peças	TDA7493

Descrição Electrónicos	3-watt 3-watt dual BTL class-D audio amplifier

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Fabricante Electrônico	STMICROELECTRONICS [STMicroelectronics]

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TDA7493

Electrical specifications

Doc ID 14570 Rev 6

9/30

4

Electrical specifications

4.1

Absolute maximum ratings

4.2

Thermal data

4.3

Electrical characteristics

Refer to Figure 3: Typical application circuit, VCC = 5 V, RL (load) = 4 Ω, R1 = 39 kΩ,

C4 = 100 nF, f = 1 kHz, GV = 18 dB, Tamb = 25 °C, unless otherwise specified.

Table 3.

Absolute maximum rating

Symbol

Parameter

Negative

value

Positive

value

Unit

VCC

DC supply on pins PVCCPL, PVCCPR, PVCCNL,

PVCCNR, SVCC

-0.3

6

V

VCC_STANDBY

Standby DC supply on pins PVCCPL, PVCCPR,

PVCCNL, PVCCNR, SVCC

-0.3

7

V

Vi

Input on pins STANDBY, INNL, INPL, INNR, INPR,

GAIN0, GAIN1

-0.3

6

V

Top

Operating temperature

0

70

°C

Tstg, Tj

Storage and junction temperature

-40

150

°C

Table 4.

Thermal data

Symbol

Parameter

Min

Typ

Max

Unit

Rth j-case

Thermal resistance junction to case

-

2

3

°C/W

Rth j-amb

Thermal resistance junction to ambient

(on recommended PCB) (1)

1.

FR4 with via holes, copper area 9 cm² as explained in Chapter 8 on page 28.

-37

-

°C/W

Table 5.

Electrical characteristics

Symbol

Parameter

Condition

Min

Typ

Max

Unit

VCC

Supply range

-

3.0

-

5.5

V

Iq

Total quiescent current No filter, no load

-

7

-

mA

Vos

Output offset voltage

Vi = 0, Gv = 6 dB, no load

-20

-

20

mV

Po

Output power

(filterless)

THD = 10%

-

3.0

-

W

THD = 1%

-2.4

-W

Po

Output power (with

filter)

THD = 10%

-

2.8

-

W

THD = 1%

-2.2

-W

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