http://www.www.datasheet4u.com

900,000+ Datasheet PDF Search and Download

Datasheet4U offers most rated semiconductors datasheets pdf




  ON Semiconductor Electronic Components Datasheet  

CAT825 Datasheet

System Supervisory Voltage Reset

No Preview Available !

CAT825 pdf
CAT823, CAT824, CAT825
System Supervisory Voltage
Reset with Watchdog and
Manual Reset
Description
The CAT823, CAT824, and CAT825 provide basic reset and
monitoring functions for the electronic systems. Each device monitors the
system voltage and maintains a reset output until that voltage reaches
the device’s specified trip value and then maintains the reset output
active condition until the device’s internal timer, after a minimum
timer of 140 ms; to allow the systems power supply to stabilize.
The CAT823 and CAT824 also have a watchdog input which can be
used to monitor a system signal and cause a reset to be issued if the
signal fails to change state prior to a timeout condition.
The CAT823 and CAT825 also provide a manual reset input which
can be used to initiate reset if pulled low. This input can be directly
attached to a pushbutton or a processor signal.
Features
Automatically Restarts Microprocessor after Power Failure
Monitors Pushbutton for External Override
Accurate Under Voltage System Monitoring
Brownout Detection System Reset for use with 3.0, 3.3, and 5.0 Volt
Systems
Pin and Function Compatible with the MAX823/24/25 Products
Operating Range from 40°C to +85°C
Available in TSOT23 5lead and SC70 Packages
These Devices are PbFree, Halogen Free/BFR Free and are RoHS
Compliant
Applications
Microprocessor and Microcontroller Based Systems
Intelligent Instruments
Control Systems
Critical mP Monitors
Portable Equipment
PIN FUNCTIONS
Pin Name
Function
RESET CMOS PushPull Active Low Reset Output
GND
Ground
MR Manual Reset input – Pulled high Internally by a 52 kW res-
istor designed to be driven low by a mechanical pushbutton,
open drain output or CMOS output.
RESET CMOS PushPull Active High Reset Output
WDI Watchdog Timer Input – Designed to be driven by a processor
output or can be disabled by tristating or leaving open.
VCC Power Supply
http://onsemi.com
SC70
SD SUFFIX
CASE 419AC
TSOT23
TD SUFFIX
CASE 419AE
PIN CONNECTIONS
1
RESET
VCC
GND
CAT823
MR WDI
1
RESET
GND
CAT824
RESET
VCC
WDI
1
RESET
GND
CAT825
RESET
(Top Views)
VCC
MR
MARKING DIAGRAM
XXXMG
G
XXX
M
G
= Specific Device Code
= Date Code
= PbFree Package*
(*Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
© Semiconductor Components Industries, LLC, 2012
May, 2012 Rev. 8
1
Publication Order Number:
CAT823/D


  ON Semiconductor Electronic Components Datasheet  

CAT825 Datasheet

System Supervisory Voltage Reset

No Preview Available !

CAT825 pdf
CAT823, CAT824, CAT825
WDI*
LEVEL SENSE
&
TIMER
TIMEOUT
COMPARATOR
VCC
RESET
VCC
VCC TOLERANCE
BIAS
+
DIGITAL
DELAY
VCC
MR*
VCC
52 kW
VOLTAGE
REFERENCE
LEVEL SENSE
&
DEBOUNCE
RESET*
* Functions Available by Device
Figure 1. Block Diagram
Device
CAT823
CAT824
CAT825
RESET
x
x
x
RESET
x
x
MR WDI
xx
x
x
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameters
Ratings
Units
Supply Voltage
6V
All other pins
Input Current, VCC
Output Current RESET, RESET
0.3 to (VCC + 0.3)
20
20
V
mA
mA
Continuous Power Dissipations (TA = +70°C)
SC70 5lead (derate 3.1 mW/°C above +70°C)
TSOT23 5lead (derate 7.1 mW/°C above +70°C)
mW
247
571
Storage Temperature
65 to 150
°C
Operating Ambient Temperature
40 to +85
°C
Lead Soldering (10 seconds max)
+300
°C
ESD Rating: Low Voltage Pins
Human Body Model
Machine Model
2000
200
V
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
Table 2. RECOMMENDED OPERATING CONDITIONS
Parameter
VCC (TA = 0°C to +70°C)
VCC (TA = 40°C to +85°C)
All Other Pins
Ambient Temperature
Range
1.0 to 5.5
1.2 to 5.5
0.1 to (VCC + 0.1)
40 to +85
Units
V
V
V
°C
http://onsemi.com
2


Part Number CAT825
Description System Supervisory Voltage Reset
Maker ON Semiconductor
Total Page 12 Pages
PDF Download
CAT825 pdf
Download PDF File
[partsNo] view html
View PDF for Mobile






Related Datasheet

1 CAT823 System Supervisory Voltage Reset ON Semiconductor
ON Semiconductor
CAT823 pdf
2 CAT823 (CAT823 - CAT825) System Supervisory Voltage Reset Catalyst Semiconductor
Catalyst Semiconductor
CAT823 pdf
3 CAT824 System Supervisory Voltage Reset ON Semiconductor
ON Semiconductor
CAT824 pdf
4 CAT824 (CAT823 - CAT825) System Supervisory Voltage Reset Catalyst Semiconductor
Catalyst Semiconductor
CAT824 pdf
5 CAT825 System Supervisory Voltage Reset ON Semiconductor
ON Semiconductor
CAT825 pdf
6 CAT825 (CAT823 - CAT825) System Supervisory Voltage Reset Catalyst Semiconductor
Catalyst Semiconductor
CAT825 pdf






Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

site map

webmaste! click here

contact us

Buy Components