Datasheet
µA
MAX6342–MAX6345
6-Pin µP Reset Circuit with
Power-Fail Comparator
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= +1.0V to +5.5V, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C and V
CC
= +3V.) (Note 1)
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.
V
CC
to GND..............................................................-0.3V to +6V
RESET, RESET
(MAX6342/MAX6344/MAX6345) ......... -0.3V to (V
CC
+ 0.3V)
RESET (MAX6343)................................................... -0.3V to +6V
MR, PFI, PFO ..............................................-0.3V to (V
CC
+ 0.3V)
Input Current, V
CC
..............................................................50mA
Output Current, RESET, RESET ..........................................50mA
Continuous Power Dissipation (T
A
= +70°C)
6-Pin SOT23 (derate 4mW/°C above +70°C).............320mW
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature Range (soldering, 10s)..................... +300°C
V
V
CC
> 1.2V, I
SINK
= 100µA
0.4
V
OL
RESET and RESET
Outputs Drive
Capability (Note 2)
T
A
= -40°C to +85°C
2.25 2.38
T
A
= -40°C to +125°C
2.21 2.45
MAX634_Z
MAX634_S
MAX634_T
MAX634_M
T
A
= +25°C
T
A
= -40°C to +125°C
T
A
= -40°C to +85°C
T
A
= +25°C
2.50 2.76
MAX634_R
2.59 2.63 2.67
2.55 2.70
2.30 2.33 2.36
T
A
= -40°C to +125°C
T
A
= -40°C to +85°C
T
A
= +25°C
T
A
= -40°C to +125°C
2.85 3.00
2.92 3.23
2.89 2.93 2.97
2.78 3.08
T
A
= -40°C to +85°C
T
A
= +25°C
T
A
= -40°C to +125°C
T
A
= -40°C to +85°C
3.03 3.08 3.13
4.25 4.50
4.16 4.56
3.00 3.15
T
A
= +25°C
T
A
= -40°C to +125°C
T
A
= -40°C to +85°C
T
A
= +25°C
4.40 4.86
V
MAX634_L
4.56 4.63 4.70
V
TH
Reset Threshold
4.50 4.75
4.31 4.38 4.45
30 60
V
CC
= 5.5V, TA = -40° to +125°C
V
CC
= 3V, TA = -40° to +125°C
V
CC
= 5.5V, TA = -40° to +85°C
V
CC
= 3V, TA = -40° to +85°C
25 50
T
A
= -40°C to +125°C
T
A
= 0°C to +70°C
V
CC
= V
TH
to (V
TH
- 100mV)
µANo load
CONDITIONS
µs
20
V
CC
to Reset Delay
25 40
I
CC
Supply Current
1.2 5.5
V
1.0 5.5
V
CC
Supply Voltage Range
30 50
UNITSMIN TYP MAXSYMBOLPARAMETER
V
CC
> 2.7V, I
SINK
= 1.2mA
V
CC
> 4.5V, I
SINK
= 3.2mA
0.4
0.3
V
0.8 ✕ VCC
V
CC
> 1.2V, I
SOURCE
= 50µA
0.8 ✕ VCC
V
CC
> 2.7V, I
SOURCE
= 500µA
(MAX6342/MAX6345 only)
0.8 ✕ VCC
V
CC
> 4.5V, I
SOURCE
= 800µA
(MAX6342/MAX6345 only)
V
OH