TDA7492 STMicroelectronics, TDA7492 Datasheet - Page 2

IC, AMP, AUDIO, CLASS D, 36POWERSO

TDA7492

Manufacturer Part Number
TDA7492
Description
IC, AMP, AUDIO, CLASS D, 36POWERSO
Manufacturer
STMicroelectronics
Datasheet

Specifications of TDA7492

Amplifier Class
D
No. Of Channels
2
Supply Voltage Range
8V To 26V
Load Impedance
8ohm
Operating Temperature Range
0°C To +70°C
Amplifier Case Style
PowerSO
No. Of Pins
36
Svhc
No SVHC
Output Power
40W
Thd + N
0.1% @ 1W, 8ohm, VCC=25V
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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Contents
Contents
1
2
3
4
5
6
7
2/32
Device block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1
2.2
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1
3.2
3.3
Characterization curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1
4.2
4.3
4.4
Applications circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Applications information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Pin-out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Pin list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Characterizations for 6-Ω loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Characterizations for 8-Ω loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Characterizations for 4-Ω loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Test board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Mode selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Gain setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Input resistance and capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Internal and external clocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.4.1
6.4.2
Output low-pass filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Protection function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Diagnostic output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Heatsink requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Master mode (internal clock) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Slave mode (external clock) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Doc ID 14926 Rev 4
TDA7492

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