(China (Mainland))
Product Summary
The MAX809 is a microprocessor (μP) supervisory circuit used to monitor the power supplies in μP and digital systems. The MAX809 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 MAX809TEUR 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. The applications of the MAX809 are: Computers, Controllers, Intelligent Instruments, Critical μP and μC Power Monitoring, Portable/Battery-Powered Equipment, Automotive.
Parametrics
MAX809 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
MAX809 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
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||||||||||
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 MAX809HTRG |
ON Semiconductor |
Supervisory Circuits 4.55V uP Reset |
Data Sheet |
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MAX809JTR |
ON Semiconductor |
Supervisory Circuits 4.0V uP Reset |
Data Sheet |
Negotiable |
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MAX809JTRG |
ON Semiconductor |
Supervisory Circuits ANA 4.0V MC RESET |
Data Sheet |
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MAX809LEUR+T |
Maxim Integrated Products |
Supervisory Circuits 3-Pin MPU Supervisor |
Data Sheet |
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MAX809LEUR+T10 |
Maxim Integrated Products |
Supervisory Circuits 3-Pin MPU Supervisor |
Data Sheet |
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MAX809LEUR-T10 |
Maxim Integrated Products |
Supervisory Circuits |
Data Sheet |
Negotiable |
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MAX809REUR+T |
Maxim Integrated Products |
Supervisory Circuits 3-Pin MPU Supervisor |
Data Sheet |
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MAX809RTRG |
ON Semiconductor |
Supervisory Circuits 2.63V uP Reset |
Data Sheet |
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