DS1830U Maxim Integrated Products, DS1830U Datasheet

IC SEQUENCER RESET PB 5V 8-USOP

DS1830U

Manufacturer Part Number
DS1830U
Description
IC SEQUENCER RESET PB 5V 8-USOP
Manufacturer
Maxim Integrated Products
Type
Sequencerr
Datasheet

Specifications of DS1830U

Number Of Voltages Monitored
1
Output
Open Drain or Open Collector
Reset
Active Low
Reset Timeout
Adjustable/Selectable
Voltage - Threshold
Adjustable/Selectable
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DS1830U
Manufacturer:
MAXIM/美信
Quantity:
20 000
FEATURES
§ 5V (DS1830) or 3.3V (DS1830A) power-on
§ Excellent for systems that need power-on
§ Asserts resets during power transients
§ Pushbutton reset input for system override
§ Selectable reset timing
§ Reduces need for discrete components
§ Precision temperature-compensated voltage
§ 8-pin DIP, 8-pin SO, or space saving 8-pin
§ Operating temperature of -40°C to +85°C
§ Open-drain, active-low inputs
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,
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:
ic.com/errata.cfm.
www.maxim-ic.com
reset
resets in a consistent sequence
reference
µSOP
RST1
will release followed by
1 of 7
Reset Sequence Pushbutton
PIN ASSIGNMENT
PIN DESCRIPTION
1
2 TD
3 TOL
4 GND
8 V
7
6
5
PBRST
RST1
RST2
RST3
CC
RST2
- Pushbutton Reset Input
- Time Delay Select Input
- V
- Ground
- Power Supply
- Reset 1 Output
- Reset 2 Output
- Reset 3 Output
and finally
CC
Tolerance Select Input
RST3
http://dbserv.maxim-
DS1830/A
. Sequencing of
DS1830/A DS183
060303

Related parts for DS1830U

DS1830U Summary of contents

Page 1

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 § ...

Page 2

OPERATION — POWER MONITOR The DS1830 provides the functions of detecting out-of-tolerance conditions on a power supply and warning a processor based system of impending power failure. When V all reset outputs will be forced active. When V period of ...

Page 3

OPERATION — PUSHBUTTON RESET The DS1830 provides a pushbutton switch for manual reset control. When any of the DS1830/A resets are not active (low) a reset cycle can be initiated by a pushbutton reset. The pushbutton reset is generated by ...

Page 4

APPLICATION DIAGRAM — CASCADE DELAY CONFIGURATIONS Figure 4 MASTER SEE NOTE 2 SEE NOTE 2 Note 1: The output tied to the pushbutton reset would be pulled to V RST3 the pushbutton input stronger pull-up is required an ...

Page 5

TIMING DIAGRAM — POWER-UP Figure 6 ABSOLUTE MAXIMUM RATINGS* Voltage on any Pin Relative to Ground Operating Temperature Storage Temperature Soldering Temperature * This is a stress rating only and functional operation of the device at these or any other ...

Page 6

DC ELECTRICAL CHARACTERISTICS (-40°C to +85°C; V PARAMETER SYMBOL V Trip Point (TOL DS1830 CC V Trip Point CC V (TOL=GND) DS1830 V Trip Point CC V (TOL=Open) DS1830 V Trip Point (TOL ...

Page 7

... F proper operation or use of the device. 7. See and t for specific t RST1 RST2 RST3 ORDERING INFORMATION PART # DS1830 DS1830S DS1830U DS1830A DS1830AS DS1830AU with an internal impedance of 40kW typical. CC and , , and RST1 RST2 RST3 CC or Ground (except TD and TOL can be floating). ...

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