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MAX6412–MAX6420
Low-Power, Single/Dual-Voltage μP Reset Circuits
with Capacitor-Adjustable Reset Timeout Delay
General Description
The MAX6412–MAX6420 low-power microprocessor
supervisor circuits monitor system voltages from 1.6V to
5V. These devices are designed to assert a reset signal
Benefits and Features
● Monitor System Voltages from 1.6V to 5V
● Capacitor-Adjustable Reset Timeout Period
● Manual Reset Input
whenever the V
supply voltage or RESET IN falls
CC
(MAX6412/MAX6413/MAX6414)
below its reset threshold or the manual reset input is
● Adjustable Reset Input Option (MAX6415–MAX6420)
asserted. The reset output remains asserted for the reset
timeout period after V
and RESET IN rise above the
CC
● Dual-Voltage Monitoring
reset threshold and the manual reset input is deasserted.
The reset timeout is externally set by a capacitor to provide
more flexibility.
(MAX6418/MAX6419/MAX6420)
● Low Quiescent Current (1.7μA, typ)
● 3 RESET Output Options
• Push-Pull RESET
The MAX6412/MAX6413/MAX6414 feature fixed thresholds
from 1.575V to 5V in approximately 100mV increments
and a manual reset input. The MAX6415/MAX6416/
MAX6417 are offered with an adjustable reset input that
can monitor voltages down to 1.26V and the MAX6418/
MAX6419/MAX6420 are offered with one fixed input and
one adjustable input to monitor dual-voltage systems.
• Push-Pull RESET
• Open-Drain RESET
● Guaranteed Reset Valid to V
= 1V
CC
● Power-Supply Transient Immunity
● Small SOT23-5 Packages
The MAX6412/MAX6415/MAX6418 have an active-
low, push-pull reset output. The MAX6413/MAX6416/
MAX6419 have an active-high, push-pull reset output and
the MAX6414/MAX6417/MAX6420 have an active-low,
open-drain reset output. All of these devices are offered
in a SOT23-5 package and are fully specified from -40°C
to +125°C.
● AEC-Q100 Qualified, Refer to Ordering Information
for Specific /V Parts
Applications
● Automotive
● Medical Equipment
● Intelligent Instruments
● Portable Equipment
● Battery-Powered Computers/Controllers
● Embedded Controllers
● Critical μP Monitoring
● Set-Top Boxes
● Computers
Pin Configuration
TOP VIEW
Selector Guide, Ordering Information, and Typical
Operating Circuit appear at end of data sheet.
RESET/RESET
GND
1
2
3
5
4
V
CC
MAX6412
MAX6420
RESET IN (MR)
SRT
SOT23-5
( ) FOR THE MAX6412/MAX6413/MAX6414.
19-2336; Rev 11; 7/19