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AN47
S i321 X L I N E F E E D P O W E R M O N I T O R I N G A N D P R O T E C T I O N
Introduction
The Silicon Laboratories’ ProSLIC products are designed to continuously monitor the power dissipated in each of the six external bipolar
transistors in the linefeed circuit.
These power measurement results are available to the user in software registers and are also used by the ProSLIC to protect linefeed
transistors from damage due to overpower conditions.
Using proper power threshold and thermal low-pass filter settings, the ProSLIC will either alert the user or automatically transition the open state in the event of an overpower condition.
The thermal resistance (RTHJA)...