+5V, Low-Power µP Supervisory Circuits
with Adjustable Reset/Watchdog
MAX6301–MAX6304
ABSOLUTE MAXIMUM RATINGS
V
CC ....................................................................................
-0.3V to +7.0V
RESET IN, SWT, SRT ..................................-0.3V to (V
CC
+ 0.3V)
WDI, WDS..............................................................-0.3V to +7.0V
RESET,
RESET
MAX6301… .......................................................-0.3V to +7.0V
MAX6302/MAX6303/MAX6304...............-0.3V to (V
CC
+ 0.3V)
Input Current
V
CC
...............................................................................±20mA
GND..............................................................................±20mA
Output Current
RESET,
RESET..............................................................±20mA
Continuous Power Dissipation (T
A
= +70°C)
PDIP (derate 9.09mW/°C above +70°C) ......................727mW
SO (derate 5.88mW/°C above +70°C) .........................471mW
µMAX (derate 4.10mW/°C above +70°C) ....................330mW
Operating Temperature Range
MAX630_C_A ......................................................0°C to +70°C
MAX630_E_A ...................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow)
Lead(Pb)-free...............................................................+260°C
Containing Lead (Pb)...................................................+240°C
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
CC
= +2V to +5.5V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V and T
A
= +25°C.)
PARAMETER
Operating Voltage Range
(Note 1)
Supply Current (Note 2)
RESET TIMER
Reset Input Threshold Voltage
Reset Input Hysteresis
Reset Input Leakage Current
Reset Output-Voltage High
(MAX6302/MAX6303/MAX6304)
V
TH
V
HYST
I
RESET IN
V
CC
≥
4.5V, I
SOURCE
= 0.8mA
V
OH
V
CC
= 2V, I
SOURCE
= 0.4mA
MAX6302/MAX6304, V
CC
= 1.31V,
R
L
= 10kΩ
V
CC
≥
4.5V, I
SINK
= 3.2mA
V
CC
= 2V, I
SINK
= 1.6mA
Reset Output-Voltage Low
(MAX6301/MAX6303/MAX6304
V
OL
MAX6301/
MAX6303
t
RD
t
RI
t
RP
V
CC
= 1V, I
SINK
= 50µA,
T
A
= 0°C to +70°C
V
CC
= 1.2V, I
SINK
= 100µA,
T
A
= -40°C to +85°C
63
26
2.8
4.0
5.2
±1
±1
V
CC
-
0.3
0.4
0.4
0.3
0.3
µs
µs
ms
µA
V
V
CC
- 0.4
V
CC
- 0.4
V
V
RESET IN
falling, V
CC
= 5.0V
V
RESET IN
rising, V
CC
= 5.0V
1.195
1.220
1.240
20
±0.01
±1
1.245
1.265
V
mV
nA
SYMBOL
V
CC
I
CC
CONDITIONS
MAX6301C/MAX6303C
MAX6301E/MAX6303E
MAX6302/MAX6304
No load
MIN
1.00
1.20
1.31
4.0
TYP
MAX
5.50
5.50
5.50
7.0
µA
V
UNITS
V
CC
to Reset Delay
Reset Input Pulse Width
Reset Timeout Period (Note 3)
Reset Output Leakage Current
V
CC
= falling at 1mV/µs
Comparator overdrive = 50mV
C
SRT
= 1500pF
MAX6301, V
RESET
= V
CC
MAX6302, V
RESET
= V
GND
2
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
