2024年3月23日发(作者：甄平凡)
元器件交易网
19-1839; Rev 1; 04/01
SC70, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
General DescriptionFeatures
The MAX6381–MAX6390 microprocessor (µP) supervisory
circuits monitor power supply voltages from +1.8V to
oFactory-Set Reset Threshold Voltages Ranging
+5.0V while consuming only 3µA of supply current at
from +1.58V to +4.63V in Approximately 100mV
+1.8V. Whenever V
CC
falls below the factory-set reset
Increments
thresholds, the reset output asserts and remains assert-
o±2.5% Reset Threshold Accuracy Over
ed for a minimum reset timeout period after V
CC
rises
Temperature (-40°C to +125°C)
above the reset threshold. Reset thresholds are available
from +1.58V to +4.63V, in approximately 100mV incre-
oSeven Reset Timeout Periods Available: 1ms,
ments. Seven minimum reset timeout delays ranging
20ms, 140ms, 280ms, 560ms, 1120ms,
from 1ms to 1200ms are available.
1200ms (min)
The MAX6381/MAX6384/MAX6387 have a push-pull
o3 Reset Output Options
active-low reset output. The MAX6382/MAX6385/
Active-Low Push-Pull
MAX6388 have a push-pull active-high reset output,
Active-High Push-Pull
and the MAX6383/MAX6386/MAX6389/MAX6390
have an open-drain active-low reset output. The
Active-Low Open-Drain
MAX6384/MAX6385/MAX6386 also feature a
oReset Output State Guaranteed Valid
debounced manual reset input (with internal pullup
Down to V
CC
= 1V
resistor). The MAX6387/MAX6388/MAX6389 have an
auxiliary input for monitoring a second voltage. The
oManual Reset Input (MAX6384/MAX6385/MAX6386)
MAX6390 offers a manual reset input with a longer V
oAuxiliary RESETIN
reset timeout period (1120ms or 1200ms) and a shorter
CC
(MAX6387/MAX6388/MAX6389)
manual reset timeout (140ms or 150ms).
oV
CC
Reset Timeout (1120ms or 1200ms)/Manual
The MAX6381/MAX6382/MAX6383 are available in 3-pin
Reset Timeout (140ms or 150ms) (MAX6390)
SC70 packages and the MAX6384–MAX6390 are avail-
able in 4-pin SC70 packages.
oNegative-Going V
CC
Transient Immunity
________________________Applications
oLow Power Consumption of 6µA at +3.6V
and 3µA at +1.8V
Computers
oPin Compatible with
Controllers
MAX809/MAX810/MAX803/MAX6326/MAX6327/
Intelligent Instruments
MAX6328/MAX6346/MAX6347/MAX6348,
Critical µP and µC Power Monitoring
and MAX6711/MAX6712/MAX6713
Portable/Battery-Powered Equipment
oTiny 3-Pin SC70 and 4-Pin SC70 Packages
Dual Voltage Systems
Ordering Information
PARTTEMP. RANGEPIN-PACKAGE
MAX6381XR_ _D_-T-40°C to +125°C3 SC70-3
Pin Configurations
MAX6382XR_ _D_-T-40°C to +125°C3 SC70-3
MAX6383XR_ _D_-T-40°C to +125°C3 SC70-3
TOP VIEW
Note:Insert reset threshold suffix (see Reset Threshold table)
GND1
after "XR" or "XS". Insert reset timeout delay (see Reset Timeout
Delay table) after "D" to complete the part number. Sample
MAX6381
stock is generally held on standard versions only (see
MAX6382
3V
CC
RESET
MAX6383
Standard Versions table). Standard versions have an order
increment requirement of 2500 pieces. Nonstandard versions
(RESET)
2
have an order increment requirement of 10,000 pieces.
Contact factory for availability of nonstandard versions.
SC70
*MAX6390 is available with D4 or D7 timing only.
( ) IS FOR MAX6382
Ordering Information continuedat end of data sheet.
Pin Configurations continued at end of data sheet.
Typical Operating Circuit appears at end of data sheet.
Selector Guide appears at end of data sheet.
________________________________________________________________Maxim Integrated Products1
For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at
1-888-629-4642, or visit Maxim’s website at .
MAX6381–MAX6390
元器件交易网
SC70, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
M
A
X
6
3
8
1
–
M
A
X
6
3
9
0
ABSOLUTE MAXIMUM RATINGS
V
CC
.-0.3V to +6.0V
-0.3V to +6.0V
RESET, RESET (Push-Pull Output).............-0.3V to (V
CC
+ 0.3V)
MR, -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
Operating -40°C to +125°C
Storage -65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
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
(V
CC
= full range, T
A
= -40°C to +125°C, unless otherwise specified. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
Operating Voltage Range
SYMBOL
V
CC
V
CC
= 5.5V, no load
V
CC
Supply CurrentI
CC
V
CC
= 3.6V, no load
V
CC
= 2.5V, no load
V
CC
= 1.8V, no load
V
CC
Reset Threshold
(See Reset Thresholds table)
Reset Threshold Tempco
V
CC
to Reset Delay
T
A
= +25°C
V
TH
T
A
= -40°C to +125°C
∆V
TH
/°C
V
CC
falling at 10mV/µs from V
TH
+ 100mV
to V
TH
- 100mV
D1
D2
Reset Timeout Period
MAX6381–MAX6389
(See Reset Timeout table)
D3
t
RP
D5
D6
D4
D7
Reset Timeout Period
MAX6390
MR timeout period
t
RP
V
CC
timeout period
V
IL
V
TH
< 4V
MR Input Voltage
V
IH
V
IL
V
IH
V
TH
> 4V
0.7
✕
V
CC
0.8
2.4
D4
D7
D4
D7
1
20
140
280
560
1120
1200
140
150
1120
1200
V
TH
-
1.5%
V
TH
-
2.5%
CONDITIONSMIN
1.0
7
6
4
3
V
TH
V
TH
60
35
2
40
280
560
1120
2240
2400
280
300
2240
2400
0.3
✕
V
CC
V
ms
ms
TYPMAX
5.5
13
11
7
6
V
TH
+
1.5%
V
TH
+
2.5%
µA
UNITS
V
V
ppm/°C
µs
2_______________________________________________________________________________________
2024年3月23日发(作者：甄平凡)
元器件交易网
19-1839; Rev 1; 04/01
SC70, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
General DescriptionFeatures
The MAX6381–MAX6390 microprocessor (µP) supervisory
circuits monitor power supply voltages from +1.8V to
oFactory-Set Reset Threshold Voltages Ranging
+5.0V while consuming only 3µA of supply current at
from +1.58V to +4.63V in Approximately 100mV
+1.8V. Whenever V
CC
falls below the factory-set reset
Increments
thresholds, the reset output asserts and remains assert-
o±2.5% Reset Threshold Accuracy Over
ed for a minimum reset timeout period after V
CC
rises
Temperature (-40°C to +125°C)
above the reset threshold. Reset thresholds are available
from +1.58V to +4.63V, in approximately 100mV incre-
oSeven Reset Timeout Periods Available: 1ms,
ments. Seven minimum reset timeout delays ranging
20ms, 140ms, 280ms, 560ms, 1120ms,
from 1ms to 1200ms are available.
1200ms (min)
The MAX6381/MAX6384/MAX6387 have a push-pull
o3 Reset Output Options
active-low reset output. The MAX6382/MAX6385/
Active-Low Push-Pull
MAX6388 have a push-pull active-high reset output,
Active-High Push-Pull
and the MAX6383/MAX6386/MAX6389/MAX6390
have an open-drain active-low reset output. The
Active-Low Open-Drain
MAX6384/MAX6385/MAX6386 also feature a
oReset Output State Guaranteed Valid
debounced manual reset input (with internal pullup
Down to V
CC
= 1V
resistor). The MAX6387/MAX6388/MAX6389 have an
auxiliary input for monitoring a second voltage. The
oManual Reset Input (MAX6384/MAX6385/MAX6386)
MAX6390 offers a manual reset input with a longer V
oAuxiliary RESETIN
reset timeout period (1120ms or 1200ms) and a shorter
CC
(MAX6387/MAX6388/MAX6389)
manual reset timeout (140ms or 150ms).
oV
CC
Reset Timeout (1120ms or 1200ms)/Manual
The MAX6381/MAX6382/MAX6383 are available in 3-pin
Reset Timeout (140ms or 150ms) (MAX6390)
SC70 packages and the MAX6384–MAX6390 are avail-
able in 4-pin SC70 packages.
oNegative-Going V
CC
Transient Immunity
________________________Applications
oLow Power Consumption of 6µA at +3.6V
and 3µA at +1.8V
Computers
oPin Compatible with
Controllers
MAX809/MAX810/MAX803/MAX6326/MAX6327/
Intelligent Instruments
MAX6328/MAX6346/MAX6347/MAX6348,
Critical µP and µC Power Monitoring
and MAX6711/MAX6712/MAX6713
Portable/Battery-Powered Equipment
oTiny 3-Pin SC70 and 4-Pin SC70 Packages
Dual Voltage Systems
Ordering Information
PARTTEMP. RANGEPIN-PACKAGE
MAX6381XR_ _D_-T-40°C to +125°C3 SC70-3
Pin Configurations
MAX6382XR_ _D_-T-40°C to +125°C3 SC70-3
MAX6383XR_ _D_-T-40°C to +125°C3 SC70-3
TOP VIEW
Note:Insert reset threshold suffix (see Reset Threshold table)
GND1
after "XR" or "XS". Insert reset timeout delay (see Reset Timeout
Delay table) after "D" to complete the part number. Sample
MAX6381
stock is generally held on standard versions only (see
MAX6382
3V
CC
RESET
MAX6383
Standard Versions table). Standard versions have an order
increment requirement of 2500 pieces. Nonstandard versions
(RESET)
2
have an order increment requirement of 10,000 pieces.
Contact factory for availability of nonstandard versions.
SC70
*MAX6390 is available with D4 or D7 timing only.
( ) IS FOR MAX6382
Ordering Information continuedat end of data sheet.
Pin Configurations continued at end of data sheet.
Typical Operating Circuit appears at end of data sheet.
Selector Guide appears at end of data sheet.
________________________________________________________________Maxim Integrated Products1
For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at
1-888-629-4642, or visit Maxim’s website at .
MAX6381–MAX6390
元器件交易网
SC70, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
M
A
X
6
3
8
1
–
M
A
X
6
3
9
0
ABSOLUTE MAXIMUM RATINGS
V
CC
.-0.3V to +6.0V
-0.3V to +6.0V
RESET, RESET (Push-Pull Output).............-0.3V to (V
CC
+ 0.3V)
MR, -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
Operating -40°C to +125°C
Storage -65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
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
(V
CC
= full range, T
A
= -40°C to +125°C, unless otherwise specified. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
Operating Voltage Range
SYMBOL
V
CC
V
CC
= 5.5V, no load
V
CC
Supply CurrentI
CC
V
CC
= 3.6V, no load
V
CC
= 2.5V, no load
V
CC
= 1.8V, no load
V
CC
Reset Threshold
(See Reset Thresholds table)
Reset Threshold Tempco
V
CC
to Reset Delay
T
A
= +25°C
V
TH
T
A
= -40°C to +125°C
∆V
TH
/°C
V
CC
falling at 10mV/µs from V
TH
+ 100mV
to V
TH
- 100mV
D1
D2
Reset Timeout Period
MAX6381–MAX6389
(See Reset Timeout table)
D3
t
RP
D5
D6
D4
D7
Reset Timeout Period
MAX6390
MR timeout period
t
RP
V
CC
timeout period
V
IL
V
TH
< 4V
MR Input Voltage
V
IH
V
IL
V
IH
V
TH
> 4V
0.7
✕
V
CC
0.8
2.4
D4
D7
D4
D7
1
20
140
280
560
1120
1200
140
150
1120
1200
V
TH
-
1.5%
V
TH
-
2.5%
CONDITIONSMIN
1.0
7
6
4
3
V
TH
V
TH
60
35
2
40
280
560
1120
2240
2400
280
300
2240
2400
0.3
✕
V
CC
V
ms
ms
TYPMAX
5.5
13
11
7
6
V
TH
+
1.5%
V
TH
+
2.5%
µA
UNITS
V
V
ppm/°C
µs
2_______________________________________________________________________________________