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DS1830U+

Description
supervisory circuits reset sequencer
CategoryPower/power management    The power supply circuit   
File Size274KB,7 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
Download Datasheet Parametric Compare View All

DS1830U+ Overview

supervisory circuits reset sequencer

DS1830U+ Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMaxim
Parts packaging codeMSOP
package instructionTSSOP,
Contacts8
Reach Compliance Codecompliant
ECCN codeEAR99
Factory Lead Time6 weeks
Is SamacsysN
Other featuresPUSHBUTTON RESET INPUT
Adjustable thresholdNO
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeR-PDSO-G8
JESD-609 codee3
length3 mm
Humidity sensitivity level1
Number of channels1
Number of functions1
Number of terminals8
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1.1 mm
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)1 V
Nominal supply voltage (Vsup)5 V
surface mountYES
Temperature levelINDUSTRIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch0.65 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
width3 mm
Base Number Matches1
DS1830/A DS183
DS1830/A
Reset Sequence Pushbutton
www.maxim-ic.com
FEATURES
§
§
§
§
§
§
§
§
§
§
5V (DS1830) or 3.3V (DS1830A) power-on
reset
Excellent for systems that need power-on
resets in a consistent sequence
Asserts resets during power transients
Pushbutton reset input for system override
Selectable reset timing
Reduces need for discrete components
Precision temperature-compensated voltage
reference
8-pin DIP, 8-pin SO, or space saving 8-pin
µSOP
Operating temperature of -40°C to +85°C
Open-drain, active-low inputs
PIN ASSIGNMENT
PIN DESCRIPTION
1
PBRST
2 TD
3 TOL
4 GND
8 V
CC
7
RST1
6
RST2
5
RST3
- Pushbutton Reset Input
- Time Delay Select Input
- V
CC
Tolerance Select Input
- Ground
- Power Supply
- Reset 1 Output
- Reset 2 Output
- Reset 3 Output
DESCRIPTION
The DS1830 Reset Sequencer monitors the power supply for an in-tolerance condition and the pushbutton
reset input for a manual reset. First a precision temperature-compensated reference and comparator circuit
monitors the status of the power supply and when an out-of-tolerance condition is detected, an internal
power fail signal is generated that forces the reset lines to go to an active state. If the power supply
returns to an in-tolerance condition,
RST1
will release followed by
RST2
and finally
RST3
. Sequencing of
resets allows for systems to power-up in an orderly manner providing superior reliability.
Note:
Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any
device may be simultaneously available through various sales channels. For information about device errata, click here:
http://dbserv.maxim-
ic.com/errata.cfm.
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DS1830U+ Related Products

DS1830U+ DS1830AU+ DS1830U+T&R DS1830+ DS1830S+
Description supervisory circuits reset sequencer supervisory circuits reset sequencer supervisory circuits reset sequencer supervisory circuits reset sequencer supervisory circuits reset sequencer
Is it Rohs certified? conform to conform to conform to conform to conform to
package instruction TSSOP, TSSOP, TSSOP8,.19 TSSOP, TSSOP8,.19 DIP, SOP,
Reach Compliance Code compliant compli compli compli compli
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99
Adjustable threshold NO NO NO NO YES
Analog Integrated Circuits - Other Types POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT POWER SUPPLY SUPPORT CIRCUIT
JESD-30 code R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDIP-T8 R-PDSO-G8
length 3 mm 3 mm 3 mm 9.375 mm 4.9 mm
Humidity sensitivity level 1 1 1 1 1
Number of channels 1 1 1 1 1
Number of functions 1 1 1 1 1
Number of terminals 8 8 8 8 8
Maximum operating temperature 85 °C 85 °C 85 °C 85 °C 85 °C
Minimum operating temperature -40 °C -40 °C -40 °C -40 °C -40 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code TSSOP TSSOP TSSOP DIP SOP
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH IN-LINE SMALL OUTLINE
Peak Reflow Temperature (Celsius) 260 260 260 NOT SPECIFIED 260
Maximum seat height 1.1 mm 1.1 mm 1.1 mm 4.572 mm 1.75 mm
Maximum supply voltage (Vsup) 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V
Minimum supply voltage (Vsup) 1 V 1 V 1 V 1 V 1 V
Nominal supply voltage (Vsup) 5 V 3.3 V 5 V 5 V 5 V
surface mount YES YES YES NO YES
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
Terminal form GULL WING GULL WING GULL WING THROUGH-HOLE GULL WING
Terminal pitch 0.65 mm 0.65 mm 0.65 mm 2.54 mm 1.27 mm
Terminal location DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature 30 30 30 NOT SPECIFIED NOT SPECIFIED
width 3 mm 3 mm 3 mm 7.62 mm 3.9 mm
Is it lead-free? Lead free Lead free Lead free - Lead free
Parts packaging code MSOP MSOP MSOP - SOIC
Contacts 8 8 8 - 8
Factory Lead Time 6 weeks 1 week 6 weeks - 1 week
Is Samacsys N N - - N
Other features PUSHBUTTON RESET INPUT PUSHBUTTON RESET INPUT PUSHBUTTON RESET INPUT - PUSHBUTTON RESET INPUT
JESD-609 code e3 e3 e3 - e3
Certification status Not Qualified Not Qualified Not Qualified - Not Qualified
Terminal surface Matte Tin (Sn) Matte Tin (Sn) Matte Tin (Sn) - Matte Tin (Sn)
Base Number Matches 1 1 - 1 1
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