DS1830

Maximum Power Dissipation :
Battery Backup Switching : No Backup
Supply Voltage - Max : 5.5 V
Maximum Operating Temperature : + 85 C
Output Type : Active Low, Open Drain
Number of Voltages Monitored : 1
Undervoltage Threshold : 4.5 V
Manual Reset : Resettable
Watchdog : No Watchdog
Supply Voltage - Min : 1 V
Monitored Voltage : 1 V to 5.5 V
Packaging : Tube
Mounting Style : Through Hole
Package / Case : PDIP-8
Supply Current (Typ) : 35 uA
Power-Up Reset Delay (Typ) : 100 ms
Overvoltage Threshold : 4.74 V


Features:

· 5V (DS1830) or 3.3V (DS1830A) power-on eset
· Excellent for systems that need power-on esets 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 eference
· 8-pin DIP, 8-pin SO, or space saving 8-pin SOP
· Operating temperature of -40°C to +85°C
· Open-drain, active-low inputs


Pinout




Specifications

Voltage on any Pin Relative to
Ground
                                                     -5V to +6.0V
Operating Temperature                -40 to +85
Storage Temperature                   -55 to +125
Soldering Temperature                See IPC/JEDEC J-STD-020A


Description

The DS1830 Reset Sequencer monitors the power supply for an in-tolerance condition and the pushbutton eset input for a manual reset. First a precision temperature-compensated reference and comparator circuit onitors the status of the power supply and when an out-of-tolerance condition is detected, an internal ower fail signal is generated that forces the reset lines to go to an active state. If the power supply eturns to an in-tolerance condition, DS1830 RST1 will release followed by RST2 and finally RST3 . Sequencing of esets allows for systems to power-up in an orderly manner providing superior reliability.

Parameters:

Technical/Catalog Information	DS1830
Vendor	Dallas Semiconductor
Category	Integrated Circuits (ICs)
Output	Open Drain or Open Collector
Reset	Active Low
Package / Case	8-DIP
Packaging	Tube
Number of Voltages Monitored	3
Reset Timeout	10 ms, 50 ms, 100 ms Minimum
Type	Sequencer
Voltage - Threshold	4.62V
Operating Temperature	-40°C ~ 85°C
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	DS1830 DS1830