Datasheet
Terminal Voltage (with respect to GND)
V
CC
...................................................................... -0.3V to +6V
Push/Pull RESET or RESET, MR ........ -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)
4-Pin SOT143 (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
(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)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage Range
(Note 1)
V
CC
T
A
= 0°C to +125°C
MAX6803/MAX6804 0.7 5.5
V
MAX6805 1.0 5.5
T
A
= -40°C to +125°C
MAX6803/MAX6804 0.78 5.5
MAX6805 1.2 5.5
Supply Current I
CC
No load
V
CC
= +3.0V 4 10
µA
V
CC
= +5.0V 5 12
Reset Threshold V
TH
MAX680_US_ _D_-T,
Table 1
T
A
= +25°C
V
TH
- 1.8%
V
TH
V
TH
+ 1.8%
V
T
A
= -40°C to +125°C
V
TH
- 3%
V
TH
V
TH
+ 3%
V
CC
Falling Reset Delay V
CC
falling at 10V/ms 30 µs
Reset Active Timeout Period t
RP
MAX680_US_ _D1-T 1 1.5 2
msMAX680_US_ _D2-T 20 30 40
MAX680_US_ _D3-T 100 150 200
MR Minimum Pulse Width 1 µs
MR Glitch Immunity 50 ns
MR Reset Delay 0.1 µs
MR Input Voltage
V
IL
0.3
×
V
CC
V
V
IH
0.7
×
V
CC
MR Pullup Resistance 12 20 30 kW
RESET Output Low Voltage
(MAX6804/MAX6805)
V
OL
Reset
asserted
I
SINK
= 50µA, V
CC
≥ 1.0V 0.4
VI
SINK
= 1.2mA, V
CC
≥ 2.5V 0.3
I
SINK
= 3.2mA, V
CC
≥ 4.25V 0.4
RESET Output High Voltage
(MAX6804)
V
OH
Reset not
asserted
I
SOURCE
= 500µA, V
CC
≥ 3.0V 0.8
×
V
CC
V
I
SOURCE
= 800µA, V
CC
≥ 5.0V 0.8
×
V
CC
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Maxim Integrated
│
2
MAX6803/MAX6804/
MAX6805
4-Pin, Low-Power
µP Reset Circuits with Manual Reset
Electrical Characteristics
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.
Absolute Maximum Ratings