DS1833Z-5+ Maxim Integrated Products, DS1833Z-5+ Datasheet
DS1833Z-5+
Manufacturer Part Number
DS1833Z-5+
Description
IC ECONORST 5V HI ACT 5% SOT223
Manufacturer
Maxim Integrated Products
Series
EconoResetr
Type
Simple Reset/Power-On Resetr
Datasheet
1.DS1833Z-5TR.pdf
(5 pages)
Specifications of DS1833Z-5+
Number Of Voltages Monitored
1
Output
Push-Pull, Totem Pole
Reset
Active High
Reset Timeout
250 ms Minimum
Voltage - Threshold
4.625V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-223 (3 leads + Tab), SC-73, TO-261
Monitored Voltage
1.2 V to 5.5 V
Undervoltage Threshold
4.5 V
Overvoltage Threshold
4.75 V
Output Type
Active High
Manual Reset
Not Resettable
Watchdog
No Watchdog
Battery Backup Switching
No Backup
Power-up Reset Delay (typ)
450 ms
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1.2 V
Supply Current (typ)
2000 uA
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Power Fail Detection
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
FEATURES
§ Automatically restarts microprocessor after
§ Maintains active-high reset for 350 ms after
§ Accurate 5%, 10% or 15% microprocessor 5V
§ Reduces need for discrete components
§ Precision temperature-compensated voltage
§ Low-cost TO-92 package or surface mount
§ Internal 5k pull-up resistor
§ Operating temperature of -40°C to +85°C
DESCRIPTION
The DS1833 EconoReset uses a precision temperature compensated reference and comparator circuit to
monitor the status of the power supply (V
power fail signal is generated which forces reset to the active (high) state. When V
tolerance condition, the reset signal is kept in the active state for approximately 350 ms to allow the
power supply and processor to stabilize.
OPERATION - POWER MONITOR
The DS1833 provides the functions of detecting out-of-tolerance power supply conditions and warning a
processor-based system of impending power failure. When V
defined by the tolerance of the part selected, the RST signal is asserted. On power-up, RST is kept active
for approximately 350 ms after the power supply has reached the selected tolerance. This allows the
power supply and microprocessor to stabilize before RST is released.
www.maxim-ic.com
power failure
V
power supply monitoring
reference and voltage sensor
SOT-223 package
CC
returns to an in-tolerance condition
CC
). When an out-of-tolerance condition is detected, an internal
1 of 5
PIN ASSIGNMENT
PIN DESCRIPTION
PIN 1
PIN 2
PIN 3
PIN 4
TO-92 PACKAGE
Drawings Section
BOTTOM VIEW
On Website
See Mech.
DALLAS
1 2 3
1 2 3
DS1833
Econo
Reset
CC
Ground
Reset
V
Ground (SOT-223 only)
is detected as out-of-tolerance, as
CC
5V EconoReset
SOT-23 PACKAGE
Drawings Section
2
TOP VIEW
On Website
CC
See Mech.
1
4
returns to an in-
3
DS1833
041002
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DS1833Z-5+ Summary of contents
Page 1
FEATURES § Automatically restarts microprocessor after power failure § Maintains active-high reset for 350 ms after V returns to an in-tolerance condition CC § Accurate 5%, 10% or 15% microprocessor 5V power supply monitoring § Reduces need for discrete ...
Page 2
BLOCK DIAGRAM Figure 1 APPLICATION EXAMPLE Figure DS1833 ...
Page 3
POWER-UP Figure 3 POWER-DOWN Figure DS1833 ...
Page 4
ABSOLUTE MAXIMUM RATINGS* Voltage on V Pin Relative to Ground CC Voltage on I/O 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 ...
Page 5
ECONORESET SELECTION GUIDE DS1233-15 DS1233-10 DS1233-5 DS1233D-15 DS1233D-10 5V DS1233D-5 DS1833-15 DS1833-10 DS1833-5 DS1233A-15 3.3V DS1233A-10 VCC TRIP POINT MIN TYP MAX 4.0 4.125 4.24 4.25 4.375 4.49 4.5 4.625 4.75 4.0 4.125 4.24 4.25 4.375 4.49 4.5 4.625 4.75 ...