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Número de pieza | TDA7498L | |
Descripción | 80 watt + 80 watt dual BTL class-D audio amplifier | |
Fabricantes | STMicroelectronics | |
Logotipo | ||
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No Preview Available ! TDA7498L
80-watt + 80-watt dual BTL class-D audio amplifier
PowerSSO-36
exposed pad up
Features
• 80 W + 80 W output power at THD = 10%
with RL = 6 Ω and VCC = 32 V
• 70 W + 70 W output power at THD = 10%
with RL = 8 Ω and VCC = 34 V
• Wide-range single-supply operation
(14 - 36 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
Datasheet - production data
• Differential inputs minimize common-mode
noise
• Standby and mute features
• Short-circuit protection
• Thermal overload protection
• Externally synchronizable
Description
The TDA7498L 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.
Table 1: Device summary
Order code
Operating
temp. range
Package
Packaging
TDA7498L -40 to 85 °C
PowerSSO36
(EPU)
Tube
TDA7498LTR -40 to 85 °C
PowerSSO36
(EPU)
Tape and reel
September 2015
DocID16504 Rev 4
This is information on a product in full production.
1/27
www.st.com
1 page TDA7498L
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 TDA7498L.
Figure 1: Internal block diagram (showing one channel only)
DocID16504 Rev 4
5/27
5 Page TDA7498L
Characterization curves
4 Characterization curves
Figure 20: "Application circuit" shows the test circuit with which the characterization curves,
shown in the next sections, were measured. Figure 3: "Test board" below shows the PCB
layout.
4.1 PCB layout
Top view
Figure 3: Test board
Top copper
Bottom view
Bottom copper
DocID16504 Rev 4
11/27
11 Page |
Páginas | Total 27 Páginas | |
PDF Descargar | [ Datasheet TDA7498L.PDF ] |
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