TDA7493 STMicroelectronics, TDA7493 Datasheet - Page 28
TDA7493
Manufacturer Part Number
TDA7493
Description
Audio Amplifiers 3W + 3W Dual BTL Class-D 4-Select dB
Manufacturer
STMicroelectronics
Datasheet
1.TDA7493.pdf
(30 pages)
Specifications of TDA7493
Amplifier Class
D
No. Of Channels
2
Output Power
3W
Supply Voltage Range
3V To 5.5V
Thd + N
0.05% @ 0.5W, 4ohm, VCC=5V
Load Impedance
4ohm
Operating Temperature Range
0°C To +70°C
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TDA7493-13TR
Manufacturer:
ST
Quantity:
20 000
Company:
Part Number:
TDA749313TR
Manufacturer:
MXIC
Quantity:
1 101
Heatsink provision
8
28/30
Heatsink provision
With the exposed-pad packages, it is possible to use the printed circuit board as a heatsink.
Using a PCB copper ground area of 3 x 3 cm
exposed pad, a thermal resistance of 37 °C/W can be achieved.
The amount of power dissipated within the device depends primarily on the supply voltage,
load impedance and output modulation level. The maximum estimated power dissipation for
the TDA7493 is around 1.1 W.
With the suggested copper area of 9 cm
than 40 °C above ambient can be expected, thus giving a maximum junction temperature,
Tj, of approximately 90 °C in consumer environments where 50 °C is specified as the
maximum ambient temperature. This provides a comfortable safety margin to the thermal
protection threshold at Tj = 150 °C.
Doc ID 14570 Rev 5
2
, a maximum junction temperature increase of less
2
with 16 via holes to make contact with the
TDA7493