Datasheet

Terminal Voltage (with respect to GND)
V
CC
.......................................................................-0.3V to +6V
V
BATT
............ ................................. ......................-0.3V to +6V
All Other Inputs (Note 1).....................-0.3V to (V
OUT
+ 0.5V)
Input Current
V
CC
................................................................................200mA
V
BATT
..............................................................................50mA
GND.................................................................................20mA
Output Current
V
OUT
....................................................Short-Circuit Protected
All Other Outputs.............................................................20mA
Rate-of-Rise, V
BATT
, V
CC
...............................................100V/μs
Operating Temperature Range
C Suffix................................................................0°C to +70°C
E Suffix.............................................................-40°C to +85°C
M Suffix..........................................................-55°C to +125°C
Power Dissipation (T
A
= +70°C)
16-Pin PDIP (derated 7mW/°C above +70°C)..............600mW
16-Pin SO (derated 7mW/°C above +70°C).................600mW
16-Pin CERDIP (derated 10mW/°C above +85°C)......600mW
Storage Temperature Range..............................-65°C to +160°C
Lead Temperature (soldering, 10s)..................................+300°C
(V
CC
= full operating range, V
BATT
= 2.8V, T
A
= +25°C, unless otherwise noted.)
Note 1: The input voltage limits on PFI and WDI may be exceeded providing the input current is limited to less than 10mA.
PARAMETER CONDITIONS MIN TYP MAX UNITS
Operating Voltage Range T
A
= full
MAX696 V
CC
3.0 5.5
VMAX696 V
BATT
2.0 V
CC
- 0.3V
MAX697 V
CC
3.0 5.5
Supply Current (MAX697) T
A
= full 160 300 µA
BATTERY-BACKUP SWITCHING (MAX696)
V
OUT
Output Voltage
I
OUT
= 1mA, T
A
= full
V
CC
-
0.3
V
CC
-
0.1
V
I
OUT
= 50mA, T
A
= full
V
CC
-
0.5
V
CC
-
0.25
V
OUT
in Battery-Backup Mode I
OUT
= 250µA, V
CC
< (V
BATT
- 0.2V), T
A
= full
V
BATT
-
0.1
V
BATT
- 0.02
V
Supply Current (Excludes I
OUT
)
I
OUT
= 1mA 1.5 4
mA
I
OUT
= 50mA 2.5 7
Supply Current in Battery-Backup
Mode
V
CC
= 0V, V
BATT
= 2.8V, T
A
= +25°C 0.6 1
µA
V
CC
= 0V, V
BATT
= 2.8V, T
A
= full 10
Battery Standby Leakage Current
5.5V > V
CC
> (V
BATT
+
0.3V)
T
A
= +25°C -100 +20 nA
T
A
= full -1.00 +0.02 µA
Battery Switchover Threshold V
CC
- V
BATT
Power-up 70
mV
Power-down 50
Battery Switchover Hysteresis 20 mV
BATT ON Output Voltage I
SINK
- 1.6mA 0.4 V
BATT ON Output Short-Circuit
Current
BATT ON = V
OUT
= 2.4V sink current 7 mA
BATT ON = V
OUT
, V
CC
= 0V 0.5 2.5 25.0 µA
RESET AND WATCHDOG TIMER
Low-Line Voltage Threshold (LL
IN
) V
CC
= +5V, +3V; T
A
= full 1.25 1.30 1.35 V
Reset Timeout Delay Figure 6, OSC SEL HIGH, V
CC
= 5V 35 50 70 ms
Watchdog Timeout Period,
Internal Oscillator
Long period, V
CC
= 5V 1.00 1.6 2.25 s
Short period, V
CC
= 5V 70 100 140 ms
MAX696/MAX697 Microprocessor Supervisory Circuits
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Absolute Maximum Ratings
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