MAX809 View Datasheet(PDF) - Estek Electronics Co. Ltd
Part Name
Description
Manufacturer
MAX809 Datasheet PDF : 7 Pages
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MAX809, MAX810
3-Pin Microprocessor
Reset Monitors
The MAX809 and MAX810 are cost–effective system supervisor
circuits 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 20 µsec of VCC falling
through the reset voltage threshold. Reset is maintained active for a
minimum of 140msec after VCC rises above the reset threshold. The
MAX810 has an active–high RESET output while the MAX809 has
an active–low RESET output. The output of the MAX809 is
guaranteed valid down to VCC = 1V. Both devices are available in a
SOT–23 package.
The MAX809/810 are optimized to reject fast transient glitches on
the VCC line. Low supply current of 17µA (VCC = 3.3V) makes these
devices suitable for battery powered applications.
Features
• Precision VCC Monitor for 3.0V, 3.3V, and 5.0V Supplies
• 140msec Guaranteed Minimum RESET, RESET
Output Duration
• RESET Output Guaranteed to VCC = 1.0V (MAX809)
• Low 17µA Supply Current
• VCC Transient Immunity
• Small SOT–23 Package
• No External Components
• Wide Operating Temperature: –40°C to 85°C
Typical Applications
• Computers
• Embedded Systems
• Battery Powered Equipment
• Critical µP Power Supply Monitoring
TYPICAL APPLICATION DIAGRAM
VCC
VCC
MAX809
RESET
VCC
PROCESSOR
RESET
INPUT
GND
GND
SOT–23
(TO–236)
CASE 318
PIN CONFIGURATION
(Top View)
GND 1
3 VCC
RESET
2
(RESET)**
SOT–23*
NOTE: *SOT–23 is equivalent to JEDEC (TO–236)
** RESET is for MAX809
** RESET is for MAX810
ORDERING INFORMATION
Device
Package
Shipping
MAX809xTR
SOT–23 3000 Tape/Reel
MAX810xTR
SOT–23 3000 Tape/Reel
NOTE: The ”x” denotes a suffix for VCC threshold –
see table below
Suffix
Reset VCC Threshold (V)
L
4.63
M
4.38
J*
4.00
T
3.08
S
2.93
R
2.63
NOTE: *J version is available for MAX809 only
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