TDA7572 Datasheet, PDF (8/64 Pages) STMicroelectronics – 200W mono bridge PWM amplifier with built-in step-up converter

Interface description
2
Interface description
TDA7572
I²C bus and mode control pins are use to control operation. Default values of all the
operating modes are deterministic, some of these values are intrinsic to the IC and some
are determined by configurations pins. The configuration pins are read at power-up and
copied into registers, which may later be modified using the I²C bus, if one is present. This
allows varied operation in an environment where NOI²C bus is present, while allowing full
control and override of pin programmed modes when used with I²C.
Figure 1. Block diagram
ISSENP
ISSENM
Mode 0
Mode 1
Automute Voltage Setting
Mute
Vs/2 or SVR
I²C data / attack sel.
I²C clock
Addr 0 / Fault / CLIP_L
Addr1 / CompEnable
NTC
ShuntDrive
TestC
Iset
DC/DC Converter
+Vs current
protection
Mode sel .
and
Mute
Regulators
LOGIC
I²Cbus
Thermal management
Diagnostics
+
clipdet
Controls and Diagnostics
Oscillators
UVLO
Diff -to-S.E.
Compressor
and
Limiter
Channel 1
DAC
-1
PWM Channel 1
Pulse Inj .
Integrator
Drivers
Prot. & supply
PWM Channel 2
Pulse Inj .
Integrator
Drivers
Protections
LSD1SourceSensing
LSD1GateDrive
LSD1GateSensing
HB1OutFilter
HB1Out
ILimit threshold
HSD1GateSensing
HSD1GateDrive
HSD1SourceSensing
VSP_Pow1
HSD2SourceSensing
HSD2GateDrive
HSD2GateSensing
VSP_Pow2
HB2Out
LSD2OutFilter
LSD2GateSensing
LSD2GateDrive
LSD2SourceSensing
VSM1,2,3,4
AC00014
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