Data Sheet

2004-01-27
Page 16
BSP 752 R
Figure 3b: Short circuit in on-state
shut down by overtemperature, restart by cooling
Figure 3a: Turn on into short circuit,
shut down by overtemperature, restart by cooling
IN
ST
L
t
I
L( SCr )
I
I
L( SCp )
V
OUT
Output short to GND
t
d(ST+)
t
m
IN
ST
L
t
I
L(SCr)
I
V
OUT
O utput short to G N D
norm al
operation
Figure 5: Undervoltage restart of charge pump
Heating up of the chip may require several milliseconds, depending
on external conditions.
V
o n
V
b b ( u n d e r )
V
b b ( u c p )
V
b b
Figure 4: Overtemperature:
Reset if T
j
< T
jt
ST
J
t
T
IN
I
L