TLE7241E Datasheet, PDF (22/71 Pages) Infineon Technologies AG – Dual Channel Constant Current Control Solenoid Driver

TLE 7241E
Functional Description and Electrical Characteristics
(“Electrical Characteristics” on Page 23, Item 5.4.3.5). A pull-up current (“Electrical
Characteristics” on Page 23, Item 5.4.3.2) will be activated between V_DD and the POS
pin when the Fault Typing bit = 1.
Distinguishing between Open Load and Short to Ground Faults
When an Open Load/Short to Ground is flagged, to distinguish between Open Load and
Short-To-Ground, a general configuration command word must be sent three times to
the appropriate channel with the fault typing bit set, and the average current must be
programmed to zero. Check the OL/SG fault bit from the third write. A ‘0’ signifies Open
Load, ‘1’ signifies Short-To-Ground. A short to ground will still be flagged for 0 mA
command current. Note that setting the fault typing bit under both normal & fault
conditions does not change the status of the output or the current flowing.
The fault typing bit enables a 40 μA pull-up current on the POS pin when high, and
enables a 40 μA pull-down current on the POS pin when low.
Data Sheet
22
Rev. 1.1, 2009-01-19