Datasheet

t1 =
10 PA
C
RES
x 2.5
= 2.5 x 10
5
x C
RES
LM5026
SNVS363D –AUGUST 2005–REVISED APRIL 2013 www.ti.com
HICCUP MODE CURRENT LIMIT RESTART (RES)
The basic operation of the hiccup mode current limit restart is described in the functional description. The delay
time to restart is programmed with the selection of the RES pin capacitor C
RES
as illustrated in Figure 23. In the
case of continuous cycle-by-cycle current limit detection at the CS pin, the time required for C
RES
to reach the
2.5V hiccup mode threshold is:
(8)
For example, if C
RES
= 0.01 µF the time t1 is approximately 2.5 ms.
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