Datasheet
MAX807L/M/N
Full-Featured µP Supervisory Circuit with
±1.5% Reset Accuracy
_______________________________________________________________________________________ 3
V
IH
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 4.60V to 5.5V for the MAX807L, V
CC
= 4.50V to 5.5V for the MAX807N, V
CC
= 4.35V to 5.5V for the MAX807M,
V
BATT
= 2.8V, V
PFI
= 0V, T
A
= T
MIN
to T
MAX
. Typical values are tested with V
CC
= 5V and T
A
= +25°C, unless otherwise noted.)
CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER
Sink current 70
4.600 4.675 4.750
V
5
BATT ON Output
Short-Circuit Current
Source current, V
CC
= 0V, V
BATT
= 2.8V
4.350 4.425 4.500
LOW LINE to RESET
Threshold Voltage
V
LR
Reset Threshold Hysteresis
V
CC
falling 30 52 70 mV
13 mV
4.500 4.575 4.650V
RST
Reset Threshold V
CC
rising and falling
4.63 4.71MAX807N
V
CC
to LOW LINE Delay V
CC
falling at 1mV/µs 24 µs
µs26V
CC
to RESET Delay V
CC
falling at 1mV/µs
4.48 4.56MAX807M
Minimum Watchdog Input
Pulse Width
Watchdog-Timeout Period
V
IL
= 0.8V, V
IH
= 0.75 x V
CC
t
WD
100 ns
V
1.12 1.6 2.24 s
ms140 200 280t
RP
RESET Active-Timeout Period V
CC
rising
4.73 4.81MAX807L
MAX807L
MAX807N
MAX807M
0.3
0.3
I
SINK
= 50µA,
V
BATT
= 0V, V
CC
falling
V
CC
- 1.5 V
CC
- 0.1
RESET Output Voltage
I
SOURCE
= 0.1mA
0.1 0.4I
SINK
= 3.2mA, V
CC
= 4.25V
mA
60Output sink current, V
CC
= 4.25V
1.6
I
SC
RESET Output
Short-Circuit Current
Output source current
V
CC
= 1V,
MAX807_C
V
CC
= 1.2V,
MAX807_E/M
V
0.4I
SINK
= 3.2mA
V
CC
- 1.5
RESET Output Voltage
I
SOURCE
= 5mA
V
0.4I
SINK
= 3.2mA, V
CC
= 4.25V
V
CC
- 1.5
LOW LINE Output Voltage
I
SOURCE
= 5mA
mA
60Output sink current
15
I
SC
RESET Output
Short-Circuit Current
Output source current, V
CC
= 4.25V
mA
28Output sink current, V
CC
= 4.25V
20
I
SC
LOW LINE Output
Short-Circuit Current
Output source current
V
0.4I
SINK
= 3.2mA
V
CC
- 1.5
WDO Output Voltage
I
SOURCE
= 5mA
mA
mA
35Output sink current
20
I
SC
WDO Output
Short-Circuit Current
Output source current
V
LL
V
LOW LINE Threshold,
V
CC
Rising
V
0.75 x V
CC
0.8
V
IH
WDI Threshold Voltage
(Note 4)
V
IL
µA
-50 -10Reset deasserted, WDI = 0V
16 50
WDI Input Current
Reset deasserted, WDI = V
CC
RESET, LOW LINE, AND WATCHDOG TIMER