Datasheet

RES
SS
HG
Current Limit Detected
at CS
Current Limit Persistent
Charge Restart cap
with 50 PA current
Discharge Restart
cap with 1.2 PA
11PA
0.2V
FB+120 mV
t2
t1
1.2V
0V
RES
Hiccup
current
source
logic
Current
limit cycle
limit cycle
CLK
+
-
LM5088
R
S
Q
+
-
HG OFF
SS begins
Restart
Q
SS = 0
50 PA
5.0V
Non- current
C
RES
Post-fault
Discharge
current
I-Limit
0.2V
1.2V
1.2 PA
27 PA
LM5088, LM5088-Q1
www.ti.com SNVS600H –DECEMBER 2008–REVISED MARCH 2013
Figure 21. Current Limit Restart Circuit
Figure 22. Current Limit Restart Timing Diagram
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