900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




STMicroelectronics Electronic Components Datasheet

TDA7491LP Datasheet

2 x 5-watt dual BTL class-D audio amplifier

No Preview Available !

TDA7491LP
2 x 5-watt dual BTL class-D audio amplifier
Features
5 W + 5 W continuous output power:
RL = 8 Ω, THD = 10% at VCC = 9 V
5 W + 5 W continuous output power:
RL = 4 Ω, THD = 10% at VCC = 6.6 V
Wide range single supply operation (5 V - 14 V)
High efficiency (η = 90%)
Four selectable, fixed gain settings of
nominally 20 dB, 26 dB, 30 dB and 32 dB
Differential inputs minimize common-mode
noise
Filterless operation
No ‘pop’ at turn-on/off
Standby and mute features
Short-circuit protection
Thermal overload protection
Externally synchronizable
PowerSSO-36 with
exposed pad down
Description
The TDA7491LP is a dual BTL class-D audio
amplifier with single power supply designed for
LCD TVs and monitors.
Thanks to the high efficiency and
exposed-pad-down (EPD) package no separate
heatsink is required.
Furthermore, the filterless operation allows a
reduction in the external component count.
The TDA7491LP is pin-to-pin compatible with the
TDA7491P and TDA7491HV.
Table 1. Device summary
Order code
Operating temperature
Package
TDA7491LP
-40 to 85 °C
PowerSSO-36 EPD
TDA7491LP13TR
-40 to 85 °C
PowerSSO-36 EPD
Packaging
Tube
Tape and reel
March 2011
Doc ID 13541 Rev 5
1/37
www.st.com
37


STMicroelectronics Electronic Components Datasheet

TDA7491LP Datasheet

2 x 5-watt dual BTL class-D audio amplifier

No Preview Available !

Contents
Contents
TDA7491LP
1 Device block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Pin out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Pin list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.3 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4 Characterization curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1 With 4-Ω load at VCC = 6.6 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2 With 8-Ω load at VCC = 9 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5 Applications information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1 Applications circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.2 Mode selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.3 Gain setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.4 Input resistance and capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.5 Internal and external clocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.5.1 Master mode (internal clock) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.5.2 Slave mode (external clock) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.6 Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.6.1 Reconstruction low-pass filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.6.2 Filterless modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.7 Protection functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.8 Diagnostic output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.9 Heatsink requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.10 Test board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
2/37 Doc ID 13541 Rev 5


Part Number TDA7491LP
Description 2 x 5-watt dual BTL class-D audio amplifier
Maker STMicroelectronics
PDF Download

TDA7491LP Datasheet PDF





Similar Datasheet

1 TDA7491LP 2 x 5-watt dual BTL class-D audio amplifier
STMicroelectronics





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy