Datasheet
MAX7705
µP Power-Supply Monitor
with Reset
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Terminal Voltage (with respect to GND)
V
CC
......................................................................-0.3V to 6.0V
RESET....................................................-0.3V to (V
CC
+ 0.3V)
Input Current, V
CC
..............................................................20mA
Output Current, RESET ......................................................20mA
Rate-of-Rise, V
CC
............................................................100V/µs
Continuous Power Disipation (T
A
= +70°C)
Plastic DIP (derate 9.09mW/°C above +70°C) ............727mW
SO (derate 5.88mW/°C above +70°C).........................471mW
Operating Temperature Ranges:
MAX7705C_ _ .....................................................0°C to +70°C
MAX7705E_ _ ..................................................-40°C to +85°C
Storage Temperature Range.............................-65°C to +160°C
Lead Temperature (soldering, 10sec).............................+300°C
ELECTRICAL CHARACTERISTICS
(V
CC
= full range, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
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.
PARAMETER CONDITIONS MIN TYP MAX UNITS
MAX7705C 1.0 5.5
V
CC
Range
MAX7705E 1.2 5.5
V
MAX7705C, V
CC
< 5.5V 65 150
Supply Current
MAX7705E, V
CC
< 5.5V 65 200
µA
RESET Threshold
4.50 4.65 4.75 V
V
CC
to RESET Delay
V
CC
= reset threshold max to reset threshold min 20 µs
Reset Active Timeout Period V
CC
= reset threshold max, V
CC
rising 140 280 560 ms
I
SINK
= 3.2mA, V
CC
= reset threshold min 0.4
V
I
SINK
= 50µA, V
CC
≥ 1.0V, MAX7705C 0.3
RESET Output Voltage
I
SOURCE
= 800µA, V
CC
≥ reset threshold max V
CC
- 1.5
I
SINK
= 100µA, V
CC
≥ 1.2V, MAX7705E 0.4