Datasheet
MAX706P/R/S/T, MAX706AP/AR/AS/AT, MAX708R/S/T
+3V Voltage Monitoring, Low-Cost µP
Supervisory Circuits
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(MAX70_P/R, MAX706AP/AR: V
CC
= 2.7V to 5.5V; MAX70_S, MAX706AS: V
CC
= 3.0V to 5.5V; MAX70_T, MAX706AT: V
CC
= 3.15V to
5.5V; T
J
= T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
J
= T
A
= +25°C.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
WATCHDOG OUTPUT
V
OH
V
RST
(
MAX
)
< V
CC
< 3.6V I
SOURCE
= 500µA
0.8 x
V
CC
V
OL
V
RST
(
MAX
)
< V
CC
< 3.6V I
SINK
= 500µA 0.3
V
OH
4.5V < V
CC
< 5.5V I
SOURCE
= 800µA
V
CC
-
1.5
WDO Output Voltage
(MAX706_, MAX706A_)
V
OL
4.5V < V
CC
< 5.5V I
SINK
= 1.2mA 0.4
V
MANUAL RESET INPUT
V
RST(MAX)
< V
CC
< 3.6V
25 70 250
MR Pullup Current MR = 0
4.5V < V
CC
<
5.5V
100 250 600
µA
V
RST(MAX)
< V
CC
< 3.6V 500
MR Pulse Width t
MR
4.5V < V
CC
< 5.5V 150
ns
V
IL
V
RST(MAX)
< V
CC
< 3.6V 0.6
V
IH
V
RST(MAX)
< V
CC
< 3.6V
0.7 x
V
CC
V
IL
4.5V < V
CC
< 5.5V 0.8
MR Input Threshold
V
IH
4.5V < V
CC
< 5.5V 2.0
V
V
RST(MAX)
< V
CC
< 3.6V 750
MR to Reset Output Delay t
MD
4.5V < V
CC
< 5.5V 250
ns
POWER-FAILURE COMPARATOR
(MAX70_P/R, MAX706AP/AR) PFI falling
V
CC
= 3.0V
1.2 1.25 1.3
PFI Input Threshold
(MAX70_S/T, MAX706AS/AT) PFI falling,
V
CC
= 3.3V
1.2 1.25 1.3
V
PFI Input Current -25 +0.01 +25 nA
V
OH
V
RST
(
MAX
)
< V
CC
< 3.6V I
SOURCE
= 500µA
0.8 x
V
CC
V
OL
V
RST
(
MAX
)
< V
CC
< 3.6V I
SINK
= 1.2mA 0.3
V
OH
4.5V < V
CC
< 5.5V I
SOURCE
= 800µA
V
CC
-
1.5
PFO Output Voltage
V
OL
4.5V < V
CC
< 5.5V I
SINK
= 3.2mA 0.4
V
Note 2: All devices 100% production tested at T
A
= +85°C. Limits over temperature are guaranteed by design.
Note 3: Applies to both RESET in the MAX70_R/S/T and MAX706AR/AS/AT, and RESET in the MAX706P/MAX706AP.