Datasheet
MAX6381–MAX6390
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
2
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= full range, T
A
= -40°C to +125°C, unless otherwise specified. Typical values are at T
A
= +25°C.) (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 +6.0V
RESET Open-Drain Output....................................-0.3V to +6.0V
RESET, RESET (push-pull output) ..............-0.3V to (V
CC
+ 0.3V)
MR, RESET IN.............................................-0.3V to (V
CC
+ 0.3V)
Input Current (V
CC
).............................................................20mA
Output Current (all pins) .....................................................20mA
Continuous Power Dissipation (T
A
= +70°C)
3-Pin SC70 (derate 2.9mW/°C above +70°C)..............235mW
4-Pin SC70 (derate 3.1mW/°C above +70°C)..............245mW
6-Pin µDFN (derate 2.1mW/°C above +70°C) ..........167.7mW
Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating Voltage Range V
CC
1.0 5.5 V
V
CC
= 5.5V, no load 7 13
V
CC
= 3.6V, no load 6 11
V
CC
= 2.5V, no load 4 7
V
CC
Supply Current I
CC
V
CC
= 1.8V, no load 3 6
µA
T
A
= +25°C
V
TH
-
1.5%
V
TH
V
TH
+
1.5%
V
CC
Reset Threshold
(See Reset Thresholds table)
V
TH
T
A
= -40°C to +125°C
V
TH
-
2.5%
V
TH
V
TH
+
2.5%
V
Reset Threshold Tempco ∆V
TH
/°C 60 ppm/°C
V
CC
to Reset Delay
V
CC
falling at 10mV/µs from V
TH
+ 100mV
to V
TH
- 100mV
35 µs
D1 1 2
D2 20 40
D3 140 280
D5 280 560
D6 560 1120
D4 1120 2240
Reset Timeout Period
MAX6381–MAX6389
(See Reset Timeout table)
t
RP
D7 1200 2400
ms
D4 140 280
MR timeout period
D7 150 300
D4 1120 2240
Reset Timeout Period
MAX6390
t
RP
V
CC
timeout period
D7 1200 2400
ms
V
IL
0.3 x
V
CC
V
IH
V
TH
< 4V
0.7 x
V
CC
V
IL
0.8
MR Input Voltage
V
IH
V
TH
> 4V
2.4
V