Datasheet

MAX6800/MAX6801/MAX6802
3-Pin, Low-Power
µP Reset Circuits
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= full range, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at V
CC
= +5.0V and T
A
= +25°C, reset not
asserted.) (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.
Terminal Voltage (with respect to GND)
V
CC
......................................................................-0.3V to +6V
Push/Pull RESET, RESET .......................-0.3V to (V
CC
+ 0.3V)
Open-Drain RESET ..............................................-0.3V to +6V
Input Current (V
CC
).............................................................20mA
Output Current (RESET, RESET).........................................20mA
Continuous Power Dissipation (T
A
= +70°C)
3-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 (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+300°C
Lead (Pb)-free packages ............................................+260°C
Package containing lead (Pb).....................................+240°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX6800/MAX6801 0.7 5.5
T
A
= 0°C to +125°C
MAX6802 1.0 5.5
MAX6800/MAX6801 0.78 5.5
Supply Voltage Range
(Note 2)
V
CC
T
A
= -40°C to +125°C
MAX6802 1.2 5.5
V
V
CC
= +3.0V 4 10
Supply Current I
CC
No load
V
CC
= +5.0V 5 12
µA
T
A
= +25°C
V
TH
- 1.8%
V
TH
V
TH
+ 1.8%
Reset Threshold V
TH
MAX680_UR_ _D_-T,
Table 1
T
A
= - 40°C to + 125°C
V
TH
- 3%
V
TH
V
TH
+ 3%
V
V
CC
Falling Reset Delay V
CC
falling at 10V/ms 30 µs
MAX680_UR_ _D1-T 1 1.5 2
MAX680_UR_ _D2-T 20 30 40Reset Active Timeout Period t
RP
MAX680_UR_ _D3-T 100 150 200
ms
I
SINK
= 50µA, V
CC
≥ 1.0V 0.4
I
SINK
= 1.2mA, V
CC
≥ 2.5V 0.3
RESET Output Low Voltage
(MAX6801/MAX6802)
V
OL
Reset
asserted
I
SINK
= 1.2mA, V
CC
≥ 4.25V 0.4
V
I
S OU RC E
= 500µA, V
C C
≥ 3.0V 0.8 x V
C C
RESET Output High Voltage
(MAX6801)
V
OH
Reset not
asserted
I
S OU RC E
= 800µA, V
C C
≥ 5.0V 0.8 x V
C C
V
I
SOURC E
= 1µA, V
CC
≥ 1.0V 0.8 x V
C C
I
SOURC E
= 200µA, V
CC
≥ 1.8V 0.8 x V
C C
V
OH
Reset
asserted
I
SOURC E
= 800µA, V
CC
≥ 4.25V 0.8 x V
C C
I
SINK
= 1.2mA, V
CC
≥ 3.0V 0.3
RESET Output Voltage
(MAX6800)
V
OL
Reset not
asserted
I
SINK
= 3.2mA, V
CC
≥ 5.0V 0.4
V
RESET Output Leakage Current
(MAX6802)
V
CC
> V
TH
, RESET not asserted 0.5 µA
Note 1: All parts are production tested at T
A
= +25°C. Overtemperature limits are guaranteed by design and not production tested.
Note 2: I
SOURCE
for the MAX6800 is I00nA. I
SINK
for the MAX6801 is 100nA. I
SINK
for the MAX6802 is 50µA.