Datasheet

LM117HV, LM317HV
www.ti.com SNVS773C –APRIL 2000–REVISED APRIL 2013
CURRENT LIMIT
Internal current limit will be activated whenever the output current exceeds the limit indicated in the Typical
Performance Characteristics. However, if during a short circuit condition the regulator's differential voltage
exceeds the Absolute Maximum Rating of 60V (e.g. V
IN
≥ 60V, V
OUT
= 0V), internal junctions in the regulator may
break down and the device may be damaged or fail. Failure modes range from an apparent open or short from
input to output of the regulator, to a destroyed package (most common with the TO-220 package). To protect the
regulator, the user is advised to be aware of voltages that may be applied to the regulator during fault conditions,
and to avoid violating the Absolute Maximum Ratings.
Figure 20. Regulator with Protection Diodes
D1 protects against C1
D2 protects against C2
Schematic Diagram
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