TDA7491HV データシートの表示（PDF） - STMicroelectronics

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TDA7491HV

20 W + 20 W dual BTL class-D audio amplifier

STMicroelectronics 

TDA7491HV

3

Electrical specifications

Electrical specifications

3.1

Absolute maximum ratings

Table 3. Absolute maximum ratings

Symbol

Parameter

VCC

Top

Tj

Tstg

DC supply voltage for pins PVCCA, PVCCB, SVCC

Operating temperature

Junction temperature

Storage temperature

Value

Unit

23

V

0 to 70

°C

-40 to 150

°C

-40 to 150

°C

3.2

Thermal data

Table 4. Thermal data

Symbol

Parameter

Min Typ Max Unit

Rth j-case Thermal resistance, junction to case

2

3

Rth j-amb

Thermal resistance, junction to ambient

(mounted on recommended PCB)(1)

24

1. FR4 with vias to copper area of 9 cm2 (see also Section 7.9: Heatsink requirements on page 24).

°C/W

3.3

Electrical specifications

Unless otherwise stated, the results in Table 5 below are given for the conditions:

VCC = 18 V, RL (load) = 8 Ω, ROSC = 39 kΩ, C1 = 100 nF, f = 1 kHz, GV = 20 dB, and

Tamb = 25° C.

Table 5.

Symbol

Electrical specifications

Parameter

Condition

VCC

Iq

IqSTBY

VOS

VOS

IOC

Tj

Ri

VOV

Supply voltage for

pins PVCCA, PVCCB, SVCC

Total quiescent

Quiescent current in standby

Output offset voltage

Play mode

Output offset voltage

Mute mode

Over current protection threshold RL = 0 Ω

Junction temperature at thermal

shut-down

Input resistance

Differential input

Over voltage protection threshold

Min Typ Max Unit

5

18 V

26

2.5

-200

-300

3

5

35 mA

5.0 µA

200 mV

300 mV

A

150

°C

55 60

kΩ

19 21

7/26

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