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MAX803 Datasheet(PDF) 1 Page - ON Semiconductor

Part No. MAX803
Description  Very Low Supply Current 3-Pin Microprocessor Reset Monitor
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

MAX803 Datasheet(HTML) 1 Page - ON Semiconductor

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© Semiconductor Components Industries, LLC, 2006
March, 2006 − Rev. 0
1
Publication Order Number:
MAX803/D
MAX803 Series,
NCP803 Series
Very Low Supply Current
3−Pin Microprocessor
Reset Monitor
The MAX803/NCP803 is a cost−effective system supervisor circuit
designed to monitor VCC in digital systems and provide a reset signal to
the host processor when necessary. No external components are
required.
The reset output is driven active within 10
msec of V
CC falling
through the reset voltage threshold. Reset is maintained active for a
timeout period which is trimmed by the factory after VCC rises above
the reset threshold. The MAX803/NCP803 has an open drain
active−low RESET output. Both devices are available in SOT−23 and
SC−70 packages.
The MAX803/NCP803 is optimized to reject fast transient glitches
on the VCC line. Low supply current of 0.5
mA (V
CC = 3.2 V) make
these devices suitable for battery powered applications.
Features
Precision VCC Monitor for 1.5 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V, and 5.0 V
Supplies
Precision Monitoring Voltages from 1.2 V to 4.9 V Available
in 100 mV Steps
Four Guaranteed Minimum Power−On Reset Pulse Width Available
(1 ms, 20 ms, 100 ms, and 140 ms)
RESET Output Guaranteed to V
CC = 1.0 V
Low Supply Current
V
CC Transient Immunity
No External Components
Wide Operating Temperature: −40°C to 105°C
Pb−Free Packages are Available
Typical Applications
Computers
Embedded Systems
Battery Powered Equipment
Critical Microprocessor Power Supply Monitoring
VCC
VCC
VCC
RESET
RESET
MAX803
NCP803
GND
GND
Figure 1. Typical Application Diagram
μP
0
0
Rpull−up
C = 100 nF
SOT−23
(TO−236)
CASE 318
PIN CONFIGURATION
3
1
2
VCC
GND
RESET
SOT−23/SC−70
(Top View)
MARKING
DIAGRAM
3
2
12
1
3
http://onsemi.com
xxx M
G
G
xxx
= Specific Device Code
M
= Date Code
G
= Pb−Free Package
(Note: Microdot may be in either location)
xx M
G
G
1
SC−70
(SOT−323)
CASE 419
See general marking information in the device marking
section on page 7 of this data sheet.
DEVICE MARKING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
ORDERING INFORMATION


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