Datasheet
MAX793/MAX794/MAX795
3.0V/3.3V Adjustable Microprocessor
Supervisory Circuits
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 3.17V to 5.5V for the MAX793T/MAX795T, V
CC
= 3.02V to 5.5V for the MAX793S/MAX795S, V
CC
= 2.72V to 5.5V for the
MAX793R/MAX794/MAX795R, V
BATT
= 3.6V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
CONDITIONS
2.85 2.925 3.00
3.00 3.075 3.15
UNITSMIN TYP MAXSYMBOLPARAMETER
V
CC
falling
3.00 3.085 3.17
2.55 2.625 2.70
V
RST
V
V
RST IN
V
V
CC
falling
V
CC
rising
RESET IN Threshold
(MAX794 only)
1.212 1.240 1.262
Reset Threshold (Note 8)
2.55 2.635 2.72
2.85 2.935 3.02
V
LR
mV
MAX793
LOWLINE-to-Reset
Threshold, (V
LOWLINE
-
V
RST
), V
CC
Falling
V
CC
< 3.6V
51525
30 45 60
mV
MAX793S/MAX795S
MAX793T/MAX795T
MAX794
MAX793
3.08
Low-Line Comparator
Hysteresis
3.23
mV
10
10
mst
RP
140 200 280Reset Timeout Period
V
MAX793R/MAX795R 2.78
nA
V
PFI
rising
V
PFI
falling
PFI Input Current
MAX794
V
-25 2 25
V
TH
1.212 1.250 1.287
PFI Input Threshold
1.212 1.240 1.262
V
LL
1.317
LOWLINE Threshold,
V
CC
Rising
VV
BOK
2.00 2.25 2.50
BATT OK Threshold
(MAX793)
V
OH
VI
SOURCE
= 300µA, V
CC
= V
RST
max
BATT OK, BATT ON, WDO,
LOWLINE Output-Voltage
High
I
SOURCE
= 300µA, V
CC
= V
RST
min
0.8V
CC
0.86V
CC
VV
OH
0.8V
CC
0.86V
CC
RESET Output-Voltage High
mV10 20PFI Hysteresis, PFI Rising
MAX793T/MAX795T
MAX793S/MAX795S
MAX793R/MAX795R
MAX793T/MAX795T
MAX793S/MAX795S
MAX793R/MAX795R
nA
RESET IN Leakage Current
(MAX794 only)
-25 2 25
MAX794
V
OH
VI
SOURCE
= 65µA, V
CC
= V
RST
max
PFO Output-Voltage High
0.8V
CC
V
OH
VI
SOURCE
= 100µA, V
CC
= 2.3V, V
BATT
= 3V
BATT ON Output-
Voltage High
0.8V
BATT
I
LEAK
µAV
CC
= V
RST
max
RESET Output Leakage
Current (Note 9)
-1 -1
I
SC
µAV
CC
= 3.3V, V
PFO
= 0V
PFO Output Short to GND
Current
180 500
V
OL
V
I
SINK
= 1.2mA; RESET, LOWLINE tested
with V
CC
= V
RST
min; RESET, BATTOK,
WDO tested with V
CC
= V
RST
max
PFO, RESET, RESET, WDO,
LOWLINE Output-Voltage
Low
0.08 0.2V
CC
INPUT AND OUTPUT LEVELS
V
CC
rising 1.212 1.250 1.282