3 .0 V/3 .3 V Ad ju s t a b le Mic ro p ro c e s s o r
S u p e rvis o ry Circ u it s
34/MAX795
ELECTRICAL CHARACTERISTICS (continued)
(V
= 3.17V to 5.5V for the MAX793T/MAX795T, V
= 3.02V to 5.5V for the MAX793S/MAX795S, V
= 2.72V to 5.5V for the
CC
CC
CC
MAX793R/MAX794/MAX795R, V
= 3.6V, T = T
to T , unless otherwise noted. Typical values are at T = +25°C.)
MAX A
BATT
A
MIN
PARAMETER
SYMBOL
CONDITIONS
MAX793T/MAX795T
MIN
3.00
2.85
2.55
3.00
2.85
TYP
3.075
2.925
2.625
3.085
2.935
MAX
3.15
3.00
2.70
3.17
3.02
UNITS
V
Falling
MAX793S/MAX795S
MAX793R/MAX795R
MAX793T/MAX795T
MAX793S/MAX795S
MAX793R/MAX795R
CC
Reset Threshold (Note 8)
V
RST
V
V
CC
Rising
2.55
1.212
1.212
2.635
1.240
1.250
2.72
1.262
1.282
V
CC
Falling
Rising
RESET IN Threshold
(MAX794 only)
V
RST IN
V
V
CC
RESET IN Leakage Current
(MAX794 only)
-25
2
25
nA
ms
Reset Timeout Period
t
RP
V
CC
< 3.6V
140
200
280
LOWLINE-to-Reset
MAX793
30
5
45
60
25
Threshold, (V
-
V
LR
mV
LOWLINE
V ), V Falling
RST CC
MAX794
MAX793
MAX794
15
10
10
mV
mV
Low-Line Comparator
Hysteresis
MAX793T/MAX795T
MAX793S/MAX795S
MAX793R/MAX795R
MAX794
3.23
3.08
2.78
LOWLINE Threshold,
V
V
V
LL
V
CC
Rising
1.317
1.262
1.287
25
V
falling
rising
1.212
1.212
-25
1.240
1.250
2
PFI
PFI Input Threshold
PFI Input Current
V
TH
V
PFI
nA
PFI Hysteresis, PFI Rising
10
20
mV
BATT OK Threshold
(MAX793)
V
BOK
2.00
2.25
2.50
V
INPUT AND OUTPUT LEVELS
RESET Output Voltage High
V
I
=300µA, V = V
min
max
max
0.8V
0.86V
CC
V
V
OH
SOURCE
CC
RST
CC
BATT OK, BATT ON, WDO,
LOWLINE Output Voltage
High
V
OH
I
= 300µA, V = V
0.8V
0.86V
CC
SOURCE
CC
RST
CC
PFO Output Voltage High
V
OH
I
= 65µA, V = V
0.8V
CC
V
V
SOURCE
CC
RST
BATT ON Output
Voltage High
V
OH
I
= 100µA, V = 2.3V, V
= 3V 0.8V
SOURCE
CC
BATT BATT
RESET Output Leakage
Current (Note 9)
I
V
= V max
RST
-1
-1
µA
µA
LEAK
CC
PFO Output Short to GND
Current
I
SC
V
CC
= 3.3V, V = 0V
PFO
180
500
PFO, RESET, RESET, WDO,
LOWLINE Output Voltage
Low
I
= 1.2mA; RESET, LOWLINE tested
SINK
V
OL
with V = V
WDO tested with V = V
min; RESET, BATTOK,
0.08
0.2V
CC
V
CC
RST
max
CC
RST
_______________________________________________________________________________________
3
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
