MAX6467US22D3+T by Analog Devices

Microprocessor Supervisory Reset Circuits with Edge-Triggered, One-Shot Manual Reset

Status: Active
Series: MAX6467
RoHS: Unknown
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The MAX6467/MAX6468 microprocessor (µP) supervisory circuits monitor single power-supply voltages from +1.8V to +5.0V and assert a reset if the supply voltage drops below its preset threshold. An edge-triggered, one-shot manual reset function ensures that the µP enters the reset mode for a fixed timeout period only, even in the event of a continuously asserted manual reset. The MAX6467/MAX6468 significantly improve system reliability compared to traditional manual reset supervisory circuits. A variety of factory-trimmed threshold options accommodate different supply voltages and tolerances, eliminating external components. The factory-set thresholds range from +1.575V to +4.625V to monitor +5.0V, +3.3V, +3.0V, +2.5V, and +1.8V supplies with various tolerances. Reset timeout periods of 150ms (min) and 1200ms (min) are available to accommodate different µP platforms. A single, active-low RESET output asserts when VCC drops below its threshold or if the edge-triggered active-low MR asserts low. Active-low RESET remains low for the reset timeout period after VCC rises above its threshold and for a fixed, one-shot timeout period after a manual reset input falling edge. Active-low RESET remains valid as long as VCC remains above +1V. Open-drain (MAX6467) and push-pull (MAX6468) output options provide additional flexibility in the system design. The MAX6467/MAX6468 are offered in the space-saving 4-pin SOT143 package and the ultra-small 4-pin SC70 package and are specified over the automotive (-40°C to +125°C) temperature range.

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Features

Precision Factory-Set Reset Threshold Voltages for +5.0V, +3.3V, +3.0V, +2.5V, and +1.8V Supplies
Edge-Triggered Manual Reset Input with One-Shot Pulsed Reset Output
Two Reset Timeout Period Options (150ms min or 1200ms min)
Immune to Short Voltage Transients
Low Supply Current (3µA at VCC = +1.8V)
Active-Low RESET Valid to VCC = +1V
Active-Low Open-Drain and Push-Pull Active-Low RESET Output Options
-40°C to +125°C Operating Temperature Range
Small 4-Pin SC70 and SOT143 Packages
No External Components Required
Pin Compatible with MAX811, MAX6315, MAX6384, and MAX6386
AEC-Q100 Qualified, Refer to Ordering Information for Specific /V Parts

Specifications

Reset Thresh. (V) 1.2 to 1.791.8 to 2.492.5 to 3.293.3 to 4.99
Reset Thresh. Accur. (%) (@ +25°C) 1.5
# Voltages Monitored 1
Manual Reset Feature One-Shot
MR1 Setup Time 1µs
Reset Out Active LowOpen Drain
tRESET (min) 85ms to 300ms>1s
ICC (µA) (max) 13
Oper. Temp. (°C) -40 to +85-40 to +1250 to +70
Package/Pins SC70/4SOT23/4
BudgetaryPrice (See Notes) 1.24


MAX6467US22D3+T Power Management ICs - PMIC by Analog Devices

MPU SUPERVISOR 5.5V SOT-143-4

Status: Unknown
Series: -
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

Specifications

Threshold Voltage 2.188V
No. of Supervisors / Monitors 1Monitors
Supply Voltage Min 1V
Supply Voltage Max 5.5V
Reset Type Active-Low Open-Drain
Digital IC Case SOT-143
No. of Pins 4Pins
Delay Time 225ms
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

MPU SUPERVISOR, 5.5V, SOT-143-4 | Farnell
Mpu Supervisor, 5.5V, Sot-143-4 | Newark Electronics

Frequently Asked Questions

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This part has not been flagged as RoHS Compliant.

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