MAX6351 Maxim, MAX6351 Datasheet
MAX6351
Manufacturer Part Number
MAX6351
Description
Dual/Triple-Voltage P Supervisory Circuits
Manufacturer
Maxim
Datasheet
1.MAX6351.pdf
(8 pages)
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The MAX6351–MAX6360 microprocessor (µP) supervi-
sors with multiple reset voltages significantly improve
system reliability and accuracy compared to separate
ICs or discrete components. If any input supply voltage
drops below its associated preset threshold, all reset
outputs are asserted. In addition, the output(s) is valid
as long as either input supply voltage remains greater
than +1.0V.
All devices in this series have an active-low debounced
manual reset input. In addition, the MAX6358/MAX6359/
MAX6360 offer a watchdog timer input with a 46.4sec
start-up timeout period and a 2.9sec timeout period.
The MAX6355/MAX6356/MAX6357 offer an additional
voltage monitor input to monitor a third voltage.
The MAX6351 features both 3V and 5V active-low push-
pull reset outputs. The MAX6353/MAX6356/MAX6359
offer a 5V active-low push-pull reset. The MAX6354/
MAX6357/MAX6360 offer a 3V active-low push-pull
reset. The MAX6352/MAX6355/MAX6358’s reset is
active-low open-drain.
All of these devices are offered with a wide variety of
voltage threshold levels, as shown in the Voltage
Threshold Levels table below. They are available in 5-
and 6-pin SOT23 packages and operate over the
extended (-40°C to +85°C) temperature range.
Note: Standard versions are shown in bold and have a required
order increment of 2500 pieces. Sample stock is generally held on
the standard versions only. The required order increment for non-
standard versions is 10,000 pieces. Contact factory for availability.
19-1508; Rev 1; 10/99
__________Voltage Threshold Levels
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
PART NO.
Portable/Battery-Powered
Equipment
Computers
Controllers
SUFFIX
(_ _)
MS
MR
LS
MT
SY
LR
TY
LT
THRESHOLD (V)
V
CC
________________________________________________________________ Maxim Integrated Products
VOLTAGE
5 NOMINAL
4.63
4.63
4.63
4.38
4.38
4.38
3.08
2.93
General Description
Intelligent Instruments
Multivoltage Systems
Applications
THRESHOLD (V)
V
CC
VOLTAGE
3 NOMINAL
3.08
2.93
2.63
3.08
2.93
2.63
2.19
2.19
µP Supervisory Circuits
* The _ _ are placeholders for the threshold voltage levels of the
devices. Substitute the part number suffix in the Voltage
Threshold Levels table for the desired voltage level. There are
two standard versions for each of the above part numbers. All
devices are available in tape-and-reel only.
Pin Configurations appear at end of data sheet.
Selector Guide appears at end of data sheet.
MAX6351_ _UT-T
MAX6352_ _UK-T
MAX6353_ _UK-T
MAX6354_ _UK-T
MAX6355_ _UT-T
MAX6356_ _UT-T
MAX6357_ _UT-T
MAX6358_ _UT-T
MAX6359_ _UT-T
MAX6360_ _UT-T
Precision Monitoring of Multiple +2.5V, +3.0V,
+3.3V, and +5V Power-Supply Voltages
Precision Factory-Set Power-Supply
Reset Thresholds
20µA Supply Current
100ms min Power-On Reset Pulse Width
Fully Guaranteed Over Temperature
Guaranteed RESET Valid to V
V
Power-Supply Transient Immunity
No External Components for Dual-Voltage
Systems
Small 5- and 6-Pin SOT23 Packages
Debounced TTL/CMOS-Compatible
Manual-Reset Input
Watchdog Timer
Low Cost
CC
46.4sec Start-Up Timeout
2.9sec Normal Timeout
PART*
3 = 1V
Dual/Triple-Voltage
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
Ordering Information
CC
5 = 1V or
6 SOT23-6
5 SOT23-5
5 SOT23-5
5 SOT23-5
6 SOT23-6
6 SOT23-6
6 SOT23-6
6 SOT23-6
6 SOT23-6
6 SOT23-6
PIN-PACKAGE
Features
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