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DS1233AZ-10-TR-C16

Description
Supervisory Circuits 3.3V EconoReset
Categorysemiconductor    Power management   
File Size87KB,5 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
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DS1233AZ-10-TR-C16 Overview

Supervisory Circuits 3.3V EconoReset

DS1233AZ-10-TR-C16 Parametric

Parameter NameAttribute value
Product CategorySupervisory Circuits
ManufacturerMaxim
RoHSNo
TypeVoltage Supervisory
Mounting StyleSMD/SMT
Package / CaseSOT-223-3
Threshold Voltage3.3 V
Number of Inputs Monitored1 Input
Output TypeActive Low, Open Drain
Manual ResetManual Reset
Watchdog TimersNo Watchdog
Battery Backup SwitchingNo Backup
Reset Delay Time450 ms
Supply Voltage - Max5.5 V
Maximum Operating Temperature+ 85 C
Minimum Operating Temperature- 40 C
PackagingTube
Chip Enable SignalsNo Chip Enable
Height1.8 mm (Max)
Length6.5 mm
Operating Supply Current50 uA
Operating Supply Voltage3.3 V
Overvoltage Threshold2.97 V
Power Fail DetectionYes
Factory Pack Quantity1
Supply Voltage - Min1.2 V
Undervoltage Threshold2.8 V
Width3.5 mm
Unit Weight0.008818 oz
DS1233A
3.3V EconoReset
www.maxim-ic.com
FEATURES
Automatically restarts microprocessor after
power failure
Monitors pushbutton for external override
Internal circuitry debounces pushbutton
switch
Maintains reset for 350ms after V
CC
returns to
an in-tolerance condition or pushbutton
released
Accurate 10% or 15% microprocessor 3.3V
power supply monitoring
Reduces need for discrete components
Precision temperature-compensated voltage
reference and voltage sensor
Low-cost TO-92 package or surface mount
SOT-223 package
Internal 5kpull-up resistor
Operating temperature of -40C to +85C
PIN ASSIGNMENT
DALLAS
DS1233A
Econo
Reset
1
1 2 3
1 2 3
BOTTOM VIEW
TO-92 PACKAGE
2 4 3
TOP VIEW
SOT-223 PACKAGE
PIN DESCRIPTION
PIN 1
PIN 2
PIN 3
PIN 4
GROUND
RESET
V
CC
GROUND (SOT-223 ONLY)
DESCRIPTION
The DS1233A EconoReset monitors two vital conditions for a microprocessor: power supply and external
override. A precision temperature-compensated reference and comparator circuit are used to monitor the
status of the power supply (V
CC
). When an out-of-tolerance condition is detected, an internal power fail
signal is generated which forces reset to the active state. When V
CC
returns to an in-tolerance condition,
the reset signal is kept in the active state for approximately 350ms to allow the power supply and
processor to stabilize. The second function of the DS1233A is pushbutton reset control. The DS1233A
debounces a pushbutton closure and will generate a 350ms reset pulse upon release.
OPERATION — POWER MONITOR
The DS1233A provides the functions of detecting out-of-tolerance power supply conditions and warning
a processor-based system of impending power failure. When V
CC
is detected as out-of-tolerance as
defined by the tolerance of the part selected, the
RST
signal is asserted. On power-up,
RST
is kept active
for approximately 350ms after the power supply has reached the selected tolerance. This allows the power
supply and microprocessor to stabilize before
RST
is released.
1 of 5
122001

DS1233AZ-10-TR-C16 Related Products

DS1233AZ-10-TR-C16 DS1233AZ-10 DS1233A-15- DS1233AZ-15-TR DS1233A-10-TR
Description Supervisory Circuits 3.3V EconoReset Supervisory Circuits 3.3V EconoReset High Frequency / RF Relays 12V DC-1GHz .15W w/diode Supervisory Circuits 3.3V EconoReset Supervisory Circuits 3.3V EconoReset
Product Category Supervisory Circuits - Supervisory Circuits Supervisory Circuits Supervisory Circuits
Manufacturer Maxim - Maxim Maxim Maxim
RoHS No - Details - Details
Type Voltage Supervisory - Voltage Supervisory Voltage Supervisory Voltage Supervisory
Mounting Style SMD/SMT - Through Hole SMD/SMT Through Hole
Package / Case SOT-223-3 - TO-92-3 SOT-223-4 TO-92-3
Threshold Voltage 3.3 V - 3.3 V 3.3 V 3.3 V
Number of Inputs Monitored 1 Input - 1 Input 1 Input 1 Input
Output Type Active Low, Open Drain - Active Low, Open Drain, Push-Pull Active Low, Open Drain Active Low, Open Drain, Push-Pull
Manual Reset Manual Reset - Manual Reset Manual Reset Manual Reset
Watchdog Timers No Watchdog - No Watchdog No Watchdog No Watchdog
Battery Backup Switching No Backup - No Backup No Backup No Backup
Reset Delay Time 450 ms - 450 ms 450 ms 450 ms
Supply Voltage - Max 5.5 V - 5.5 V 5.5 V 5.5 V
Maximum Operating Temperature + 85 C - + 85 C + 85 C + 85 C
Minimum Operating Temperature - 40 C - - 40 C - 40 C - 40 C
Packaging Tube - Bulk Reel Reel
Chip Enable Signals No Chip Enable - No Chip Enable No Chip Enable No Chip Enable
Height 1.8 mm (Max) - 4.95 mm (Max) 1.8 mm (Max) 4.95 mm (Max)
Length 6.5 mm - 4.95 mm (Max) 6.5 mm 4.95 mm (Max)
Operating Supply Current 50 uA - 50 uA 50 uA 50 uA
Operating Supply Voltage 3.3 V - 5 V 5 V 5 V
Overvoltage Threshold 2.97 V - 2.8 V 2.8 V 2.97 V
Power Fail Detection Yes - Yes Yes Yes
Factory Pack Quantity 1 - 2000 - 2000
Supply Voltage - Min 1.2 V - 1.2 V 1.2 V 1.2 V
Undervoltage Threshold 2.8 V - 2.64 V 2.64 V 2.8 V
Width 3.5 mm - 3.94 mm (Max) 3.5 mm 3.94 mm (Max)
Unit Weight 0.008818 oz - 0.016000 oz 0.006632 oz 0.016000 oz
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