Product Summary

The MAX809REUR+ is a microprocessor (μP) supervisory circuits used to monitor the power supplies in µP and digital systems. The MAX809REUR+ provides excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V, +3.3V, +3.0V, or +2.5V-powered circuits. The MAX809REUR+ performs a single function: it asserts a reset signal whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for at least 140ms after VCC has risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available. Applications include Computers, Controllers, Intelligent Instruments, Critical μP and μC Power Monitoring, Portable/Battery-Powered Equipment and Automotive.

Parametrics

MAX809REUR+ absolute maximum ratings: (1)Input Current, VCC: 20mA; (2)Output Current, RESET, RESET: 20mA; (3)Rate of Rise, VCC: 100V/μs; (4)Operating Temperature Range: -40℃ to +105℃; (5)Storage Temperature Range: -65℃ to +150℃; (6)Lead Temperature (soldering, 10s): +300℃.

Features

MAX809REUR+ features: (1)Precision Monitoring of +2.5V, +3V, +3.3V, and +5V Power-Supply Voltages; (2)Fully Specified Over Temperature; (3)140ms min Power-On Reset Pulse Width; (4)12μA Supply Current; (5)Guaranteed Reset Valid to VCC = +1V; (6)Power Supply Transient Immunity; (7)No External Components; (8)3-Pin SC70 and SOT23 Packages.

Diagrams

MAX809REUR+ Typical Operating Circuit 

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
MAX809REUR+T
MAX809REUR+T
Maxim Integrated Products
Supervisory Circuits 3-Pin MPU Supervisor
Data Sheet
0-1: $1.34
1-25: $1.01
25-50: $0.96
50-100: $0.89
MAX809REUR+T10
MAX809REUR+T10
Maxim Integrated Products
Supervisory Circuits 3-Pin MPU Supervisor
Data Sheet
0-6250: $0.77
6250-10000: $0.77