100-watt + 100-watt dual BTL class-D audio amplifier
Description
TDA7498
Datasheet
100-watt + 100-watt dual BTL class-D audio amplifier
PowerSSO-36 exposed pad up
Features
• 100 W + 100 W output power at THD = 10% with RL = 6 Ω and VCC = 36 V • 80 W + 80 W output power at THD = 10% with RL = 8 Ω and VCC = 34 V • Wide-range single-supply operation (14 - 39 V) • High efficiency (η = 90%) • Four selectable, fixed gain settings of nominally 25.
6 dB, 31.
6 dB, 35.
1 dB and
37.
6 dB • Differential inputs minimize common-mode noise • Standby and mute features • Short-circuit protection • Thermal overload protection • Externally synchronizable
Description
The TDA7498 is a dual BTL class-D audio amplifier with single power supply designed for home systems and active speaker applications.
It comes in a 36-pin PowerSSO package with exposed pad up (EPU) to facilitate mounting a separate heatsink.
Product status link TDA7498
Product summary
Order code
TDA7498TR
Temperature range
-40 to 85 °C
Package
PowerSSO36 (EPU)
Packing
Tape and reel
DS6437 - Rev 10 - August 2020 For further information contact your local STMicroelectronics sales office.
www.
st.
com
TDA7498
Device block diagram
1
Device block diagram
Figure 1.
Internal block diagram (showing one channel only) shows the block diagram of one of the two identical channels of the TDA7498.
Figure 1.
Internal block diagram (showing one channel only)
DS6437 - Rev 10
page 2/22
2
2.
1
Pin description
Pinout
Figure 2.
Pin connections (top view, PCB view)
36 VSS 35 SVCC 34 VREF 33 INNB 32 INPB 31 GAIN1 30 GAIN0 29 SVR 28 DIAG 27 SGND 26 VDDS 25 SYNCLK 24 ROSC 23 INNA 22 INPA 21 MUTE 20 STBY 19 VDDPW
EP, exposed pad Conn ect to ground
SUB_GND 1 OUTPB 2 OUTPB 3 PGNDB 4 PGNDB 5 PVCCB 6 PVCCB 7 OUTNB 8 OUTNB 9 OUTNA 10 OUTNA 11 PVCCA 12 PVCCA 13 PGNDA 14 PGNDA 15 OUTPA 16 OUTPA 17 PGND 18
TDA7498
Pin description
DS6437 - Rev 10
page 3/22
2.
2
TDA7498
Pin list
Pin list
Number 1 2,3 4,5 6,7 8,9 10,11 12,13 14,15 16,17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 -
...
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