5-Pin µP Supervisory Circuits with
Watchdog and Manual Reset
ABSOLUTE MAXIMUM RATINGS
Voltage (with respect to GND)
Continuous Power Dissipation (T = +70°C)
A
V
......................................................................-0.3V to +6V
SOT23-5 (derate 7.1mW/°C above +70°C)...............571mW
Operating Temperature Range............................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range..............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
CC
RESET (MAX6320/MAX6321/MAX6322 only)...... -0.3V to +6V
All Other Pins.........................................-0.3V to (V + 0.3V)
CC
Input/Output Current, All Pins .............................................20mA
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
= 2.5V to 5.5V, T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
CC
A
A
PARAMETER
SYMBOL
CONDITIONS
= -40°C to +85°C
A
MIN
TYP
MAX
5.5
20
UNITS
Operating Voltage Range
Supply Current
V
T
1.0
V
CC
V
V
V
V
= 5.5V
= 3.6V
= 5.5V
= 3.6V
10
5
CC
CC
CC
CC
MAX6316/MAX6317/MAX
6318/MAX6320/MAX6321
12
I
µA
CC
3
12
MAX6319/MAX6322:
MR unconnected
3
8
Reset Threshold
Temperature Coefficient
V
/°C
40
ppm/°C
TH
T
T
= +25°C
V
V
- 1.5%
- 2.5%
V
TH
V
TH
3
V
V
+ 1.5%
+ 2.5%
A
A
TH
TH
TH
TH
Reset Threshold (Note 2)
Reset Threshold Hysteresis
V
V
RST
= -40°C to +85°C
mV
MAX63__A_-T
MAX63__B_-T
MAX63__C_-T
MAX63__D_-T
1
1.4
28
2
20
40
Reset Active Timeout Period
t
ms
µs
RP
140
200
1600
40
280
1120
2240
V
to RESET Delay
t
V
falling at 1mV/µs
CC
CC
RD
PUSH/PULL RESET OUTPUT (MAX6316L/MAX6317H/MAX6318_H/MAX6319_H/MAX6321HP/MAX6322HP)
V
V
V
V
V
V
1.0V, I
1.2V, I
2.7V, I
4.5V, I
2.7V, I
4.5V, I
= 50µA
0.3
0.3
0.3
0.4
CC
CC
CC
CC
CC
CC
SINK
SINK
SINK
SINK
= 100µA
= 1.2mA
= 3.2mA
V
OL
RESET Output Voltage
V
= 500µA
= 800µA
0.8 x V
CC
SOURCE
SOURCE
V
OH
V
- 1.5
CC
RES ET Rise Time (MAX6316L,
MAX6318LH, MAX6319LH)
Rise time is measured from 10% to 90%
t
5
25
ns
V
R
of V ; C = 5pF, V
= 3.3V (Note 3)
CC
CC
L
V
V
V
V
V
2.7V, I
4.5V, I
1.8V, I
2.7V, I
4.5V, I
= 1.2mA
= 3.2mA
0.3
0.4
CC
SINK
V
V
OL
CC
CC
CC
CC
SINK
RESET Output Voltage
= 150µA
= 500µA
= 800µA
0.8 x V
0.8 x V
SOURCE
SOURCE
SOURCE
CC
CC
OH
V
- 1.5
CC
Note 1: Over-temperature limits are guaranteed by design, not production tested.
Note 2: A factory-trimmed voltage divider programs the nominal reset threshold (V ). Factory-trimmed reset thresholds are
TH
available in 100mV increments from 2.5V to 5V (see Table 1 at end of data sheet).
Note 3: Guaranteed by design.
2
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