Datasheet

MAX6315
Open-Drain SOT µP Reset Circuit
_______________________________________________________________________________________ 3
6
0
-50 -30 30 90
SUPPLY CURRENT vs. TEMPERATURE
2
1
5
MAX6315-01
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
-10 10 50
3
4
70
V
CC
= 5V
V
CC
= 3V
V
CC
= 1V
6
0
0
1
35
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
2
1
5
MAX6315-02
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (µA)
2
3
4
4
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C
50
0
-50 -30 10 90
POWER-DOWN RESET DELAY
vs. TEMPERATURE
10
40
MAX6315-03
TEMPERATURE (°C)
POWER-DOWN RESET DELAY (µs)
-10
20
30
30 50 70
V
CC
FALLING AT 1mV/
µ
s
V
TH
= 4.63V
V
TH
= 3.00V
1.04
0.96
-50 -30 10 90
NORMALIZED RESET TIMEOUT PERIOD
vs. TEMPERATURE (V
CC
RISING)
0.97
0.98
1.02
1.00
1.03
MAX6315-04
TEMPERATURE (°C)
NORMALIZED RESET TIMEOUT PERIOD
-10
0.99
1.01
30 50 70
1.006
0.994
-50 -30 10 90
NORMALIZED RESET THRESHOLD
vs. TEMPERATURE (V
CC
FALLING)
0.996
0.998
1.004
1.000
MAX6315-05
TEMPERATURE (°C)
NORMALIZED RESET THRESHOLD
-10
1.002
30 50 70
100
0
10 100 1000
MAXIMUM TRANSIENT DURATION
vs. RESET COMPARATOR OVERDRIVE
20
MAX6315-06
RESET COMP. OVERDRIVE, V
TH
- V
CC
(mV)
MAXIMUM TRANSIENT DURATION (µs)
40
60
80
T
A
= +25°C
RESET OCCURS
ABOVE CURVE
V
TH
= 4.63V
V
T
= 3.00V
__________________________________________Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
______________________________________________________________Pin Description
NAME FUNCTION
1 GND Ground
2
RESET
Active-Low Open-Drain Output. Connect to an external pullup resistor. Can be pulled up to a voltage
higher than V
CC
, but less than 6V.
PIN
3
MR
Manual Reset Input. A logic-low on MR asserts reset. Reset remains asserted as long as MR is low, and
for the reset timeout period (t
RP
) after the reset conditions are terminated. Connect to V
CC
if not used.
4 V
CC
Supply Voltage and Reset Threshold Monitor Input