TDA7572 Datasheet, PDF (47/64 Pages) STMicroelectronics – 200W mono bridge PWM amplifier with built-in step-up converter

TDA7572
Figure 11. Threshold of current limiting diagram
VV14Sense - VCSense
Vlimhmax, Vlimlmax
440mV
Vlimhmin
260mV
Vlimlmin
120mV
Step-up
AC00023
37V
42V
Vo
The I²C bus register that is set for default to "habilitation" enables the step up. In case of
14V operation or split supply the step-up and no i2c bus mode the step-up is disabled by
connects the BSTVSense pin to a reference of at least five volts over VSM.
During the testing phase the digital test mode is entered by put Csense pin at least 3V under
14V pin.
47/64