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TDA7576B Datasheet

Dual bridge MOSFET

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TDA7576B
Dual bridge MOSFET power amplifier for 24 V systems
Datasheet production data
Features
Multipower BCD technology
24 V battery operation
MOSFET output power stage
High output power capability
– 2 x 20 W/4 @ 24 V, 1 kHz; 10 %
Minimized external components
– No decoupling capacitors
– No bootstrap capacitor
– No external compensation
– Internally fixed gain
Standby function
Mute function
Diagnostic pin for:
– clip detector (THD 2 %)
– short circuit detection
– thermal protection
Output DC offset detection
Protections:
– 60 V load dump
– Overrating chip temperature
– Out short circuit protection (to GND, Vcc
and across the load)
– ESD
'!0'03
Multiwatt15
Description
The TDA7576B is a dual bridge power amplifier
with MOSFET output power stages. It has been
specifically designed for 24 V power supply
systems making it compatible with truck/bus
applications.
The feedback topology allows excellent distortion
performances and the integrated buffer minimizes
the need for external components. The fully
complementary P-channel/N-channel output
structure allows rail-to-rail output voltage swing
minimizing saturation losses.
The TDA7576B integrates a DC offset detector, a
clipping detector and a diagnostic output.
Table 1.
Device summary
Order code
TDA7576B
Package
Multiwatt15
Packing
Tube
September 2013
This is information on a product in full production.
Doc ID 023511 Rev 3
1/17
www.st.com
1


STMicroelectronics Electronic Components Datasheet

TDA7576B Datasheet

Dual bridge MOSFET

No Preview Available !

Contents
Contents
TDA7576B
1 Block and application diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Electrical specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.4 Electrical characteristics curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4 Principle of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5 Power dissipation computation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.1 Diagnostics pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.2 Thermal protections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2/17 Doc ID 023511 Rev 3


Part Number TDA7576B
Description Dual bridge MOSFET
Maker STMicroelectronics
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