MAX6316–MAX6322
5-Pin μP Supervisory Circuits with
Watchdog and Manual Reset
Absolute Maximum Ratings
Voltage (with respect to GND)
Operating Temperature Range......................... -40°C to +125°C
Junction Temperature......................................................+150°C
Storage Temperature Range............................ -65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow)
V
......................................................................-0.3V to +6V
CC
RESET (MAX6320/MAX6321/MAX6322 only)....-0.3V to +6V
All Other Pins........................................ -0.3V to (V + 0.3V)
Input/Output Current, All Pins.............................................20mA
CC
Continuous Power Dissipation (T = +70°C)
SOT23 (derate 7.1mW/°C above +70°C)....................571mW
Leaded Package..........................................................+240°C
Lead-Free Package.....................................................+260°C
A
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 +125°C, unless otherwise noted. Typical values are at T = +25°C.) (Note 1)
CC
A
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
5.5
20
UNITS
Operating Voltage Range
V
T = -40°C to +125°C
1.0
V
CC
A
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
Supply Current
I
µA
CC
3
12
MAX6319/MAX6322:
MR unconnected
3
8
Reset Threshold Temperature
Coefficient
DV /°C
40
ppm/°C
TH
T = +25°C
V
V
- 1.5%
V
V
V
V
+ 1.5%
A
TH
TH
TH
TH
Reset Threshold (Note 2)
V
V
RST
T = -40°C to +125°C
A
- 2.5%
+ 2.5%
TH
TH
3
Reset Threshold Hysteresis
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
RESET Rise Time (MAX6316L,
Rise time is measured from 10% to 90%
of V ; C = 5pF, V = 3.3V (Note 3)
t
5
25
ns
V
R
MAX6318LH, MAX6319LH)
CC
L
CC
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
CC
CC
CC
CC
SINK
V
OL
SINK
RESET Output Voltage
= 150µA
= 500µA
= 800µA
0.8 x V
0.8 x V
SOURCE
SOURCE
SOURCE
CC
V
OH
CC
V
- 1.5
CC
Note 1: Overtemperature 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 avail-
TH
able in 100mV increments from 2.5V to 5V (see Table 1 at end of data sheet).
Note 3: Guaranteed by design.
Maxim Integrated
│ 2
www.maximintegrated.com
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