TDA7476 查看數據表（PDF） - STMicroelectronics

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TDA7476

CAR RADIO DIAGNOSTIC PROCESSOR

STMicroelectronics 

TDA7476

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Vop

Operating Supply Voltage

Vs

DC Supply Voltage

Vpeak Peak Supply Voltage t = 50ms

Ptot

Total Power Dissipation Tcase = 25°C

Tstg; T‘c- Storage and Junction Temperature

VSB

Stand-by Pin Voltage

VSDA SDA Pin Voltage

VSCL SCL Pin Voltage

VADD ADD Pin Voltage

VCH

CH+ or CH- Pin Voltage

(*) Minimum value between VS+10V and 25V.

THERMAL DATA

Symbol

Parameter

RTh j-amb Thermal resistance junction to ambient

Value

Unit

18

V

28

V

40

V

1.5

W

-40 to 150

°C

6

V

6

V

6

V

6

V

min (*) (VS +10, 25)

Max.

Value

85

Unit

°C/W

ELECTRICAL CHARACTERISTICS

(Vs = 14.4V; Tamb = 25°, unless otherwise specified.)

Symbol

Parameter

Test Condition

Min. Typ. Max. Unit

VSBIN Stand-By IN Threshold

1.5

V

VSBOUT Stand-By OUT Threshold

3.5

V

ISB Stand-By Current Consumption Stand-By Voltage Pin = 1.5V

100

µA

Iq

Total Quiescent Current

Total quiescent Current with

TDA7476 not addressed

5

mA

AUDIO INPUTS CH1, CH2, CH3, CH4, CH5 - TURN ON DIAGNOSTIC

Pgnd

Short to GND det. (below this

limit, the Audio Output is

considerd in Short Circuit to

GND)

Power amplifier in st-by condition

0.8

V

Pvs Short to Vs det. (above this limit,

the Audio Output is considered in

Short Circuit to Vs)

Vs-0.6

V

Pnop

Normal operation thresholds.

(Within these limits, the Audio

Output is considered without

faults)

1.2

Vs-1.2 V

3/19

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