Datasheet

V
CC(start)
V
CC
V
(B_IT−)
Brownout
Region
V
(SVSstart)
V
Software Sets VLD>0: SVS is Active
Undefined
0
1
Brownout
0
1
0
1
Set POR
Brownout
Region
SVS Circuit is Active From VLD > to V
CC
< V
(B_IT−)
SVS out
V
hys(SVS_IT−)
V
hys(B_IT−)
t
d(BOR)
t
d(SVSon)
t
d(SVSR)
t
d(BOR)
(SVS_IT−)
V
CC(drop)
0
0.5
1
1.5
2
1 ns 1 ns
t
pw
− Pulse Width − µs
1 10 1000
t
f
t
r
t − Pulse Width − µs
100
t
f
= t
r
Rectangular Drop
V
CC(drop)
− V
Triangular Drop
3 V
V
CC
t
pw
3 V
V
CC
t
pw
V
CC(drop)
MSP430FW42x
SLAS383D –OCTOBER 2003–REVISED JANUARY 2011 www.ti.com
Figure 13. SVS Reset (SVSR) vs Supply Voltage
Figure 14. V
CC(drop)
with a Square Voltage Drop and a Triangle Voltage Drop to Generate an SVS Signal
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