© Semiconductor Components Industries, LLC, 2016
November, 2017 − Rev. 28
1 Publication Order Number:
MAX809S/D
MAX809 Series,
MAX810 Series
Very Low Supply Current
3-Pin Microprocessor
Reset Monitors
The MAX809 and MAX810 are cost−effective system supervisor
circuits designed to monitor V
CC
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 V
CC
rises above
the reset threshold. The MAX810 has an active−high RESET output
while the MAX809 has an active−low RESET
output. Both devices
are available in SOT−23 and SC−70 packages.
The MAX809/810 are optimized to reject fast transient glitches on
the V
CC
line. Low supply current of 0.5 mA (V
CC
= 3.2 V) makes these
devices suitable for battery powered applications.
Features
• Precision V
CC
Monitor for 1.5 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
• Compatible with Hot Plug Applications
• V
CC
Transient Immunity
• No External Components
• Wide Operating Temperature: −40°C to 105°C
• These Devices are Pb−Free and are RoHS Compliant
Typical Applications
• Computers
• Embedded Systems
• Battery Powered Equipment
• Critical Microprocessor Power Supply Monitoring
V
CC
V
CC
V
CC
PROCESSOR
RESET
RESET
INPUT
MAX809/810
GND GND
Figure 1. Typical Application Diagram
RESET
NOTE: RESET is for MAX809
RESET is for MAX810
SOT−23
(TO−236)
CASE 318
PIN CONFIGURATION
3
1
2
V
CC
GND
RESET
SOT−23/SC−70
(Top View)
xxx = Specific Device Code
M = Date Code
G = Pb−Free Package
(Note: Microdot may be in either location)
MARKING
DIAGRAM
3
1
21
2
3
RESET
See general marking information in the device marking
section on page 10 of this data sheet.
DEVICE MARKING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
ORDERING INFORMATION
xxx MG
G
xx MG
G
1
SC−70
(SOT−323)
CASE 419
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his document contains information on some products that
re still under development. ON Semiconductor reserves the
ight to change or discontinue these products without notice.
