CAT1026, CAT1027
Preliminary Information
t
GLITCH
Figure 1. RESET Output Timing
V
TH
V
RVALID
t
RPD1
t
V
t
PURST
CC
t
RPD1
PURST
RESET
RESET
Figure 2. Auxiliary Voltage Monitor Timing
V
REF
V
SENSE
t
t
t
t
RPD2
RPD2
RPD2
RPD2
V
LOW
Figure 3. Auxiliary Voltage Monitor
V
CC
V
AUX
CAT1026/27
Externally adjustable
threshold
Power Fail
Interrupt
V
LOW
R
1
V
TH-ADJ
V
SENSE
R
2
R
R
2
R
1 +
R
2
+
1
V
= V
×
= 1.25V ×
TH-ADJ
REF
R
R
2
2
Doc. No. 3010, Rev. E
8