US 12,188,991 B2
Device with fault detection and related system and method
Gaudenzia Bagnati, Pogliano Milanese (IT)
Assigned to STMICROELECTRONICS S.r.l., Agrate Brianza (IT)
Filed by STMICROELECTRONICS S.r.l., Agrate Brianza (IT)
Filed on Feb. 23, 2022, as Appl. No. 17/678,953.
Prior Publication US 2023/0266403 A1, Aug. 24, 2023
Int. Cl. G01R 31/52 (2020.01); H03K 5/24 (2006.01); H03K 17/08 (2006.01)
CPC G01R 31/52 (2020.01) [H03K 5/24 (2013.01); H03K 17/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device comprising:
a driver circuit; and
diagnostic circuitry coupled to the driver circuit and including on-state diagnostic circuitry configured to detect an over current condition in an active operating mode of the driver circuit and off-state diagnostic circuitry configured to detect an open load fault in an inactive operating mode of the driver circuit, wherein the diagnostic circuitry is configured to:
generate a configuration signal associated with an operative condition of the driver circuit based on a comparator output of the off-state diagnostic circuitry;
diagnose conditions associated with the driver circuit; and
control operation of the on-state diagnostic circuitry based on the configuration signal.