Product Summary

The MAX809REUR+T is a microprocessor (μP) supervisory circuit used to monitor the power supplies in μP and digital systems. The MAX809REUR+T 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 circuit MAX809REUR+T performs a single function: they assert 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.

Parametrics

MAX809REUR+T absolute maximum ratings: (1)Terminal Voltage (with respect to GND) VCC: -0.3V to +6.0V; (2)RESET, RESET (push-pull): -0.3V to (VCC + 0.3V); (3)RESET (open drain): -0.3V to +6.0V; (4)Input Current, VCC: 20mA; (5)Output Current, RESET, RESET: 20mA; (6)Rate of Rise, VCC: 100V/μs; (7)Continuous Power Dissipation: 174mW; (8)Operating Temperature Range: -40 to +125℃; (9)Storage Temperature Range: -65 to +150℃; (10)Lead Temperature (soldering, 10s): +300℃; (11)Soldering Temperature (reflow): +260℃.

Features

MAX809REUR+T features: (1)Precision Monitoring of +2.5V, +3V, +3.3V, and +5V Power-Supply Voltages; (2)Fully Specified Over Temperature; (3)Available in Three Output Configurations: Push-Pull RESET Output; (4)140ms min Power-On Reset Pulse Width; (5)12μA Supply Current; (6)Guaranteed Reset Valid to VCC = +1V; (7)Power Supply Transient Immunity; (8)No External Components; (9)3-Pin SC70 and SOT23 Packages.

Diagrams

MAX809REUR+T 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