MAX809LEUR+T by Analog Devices

3-Pin Microprocessor Reset Circuits

Status: Active
Series: MAX809, MAX809J, MAX809L, MAX809M, MAX809R, MAX809S, MAX809T, MAX809Z
RoHS: Unknown
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The MAX803/MAX809/MAX810 are microprocessor (µP) supervisory circuits used to monitor the power supplies in µP and digital systems. They provide 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. These circuits perform 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 MAX803 has an open-drain output stage, while the MAX809/MAX810 have push-pull outputs. The MAX803's open-drain active-low RESET output requires a pullup resistor that can be connected to a voltage higher than VCC. The MAX803/MAX809 have an active-low RESET output, while the MAX810 has an active-high RESET output. The reset comparator is designed to ignore fast transients on VCC, and the outputs are guaranteed to be in the correct logic state for VCC down to 1V. Low supply current makes the MAX803/MAX809/MAX810 ideal for use in portable equipment. The MAX803 is available in a 3-pin SC70 package, and the MAX809/MAX810 are available in 3-pin SC70 or SOT23 packages.

Prices starting from US$1.08


Distributor Starting From Stock
Logo for Schukat Electronic Schukat Electronic US$1.08
6,730
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Logo for Newark Electronics Newark Electronics US$2.19
2,223
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Logo for element14 element14 US$2.04
2,223
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Logo for Transfer Multisort Elektronik Transfer Multisort Elektronik US$1.95
1,594
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Features

Precision Monitoring of +2.5V, +3V, +3.3V, and +5V Power-Supply Voltages
Fully Specified Over Temperature
Available in Three Output Configurations Open-Drain Active-Low RESET Output (MAX803) Push-Pull Active-Low RESET Output (MAX809) Push-Pull RESET Output (MAX810)
Open-Drain Active-Low RESET Output (MAX803)
Push-Pull Active-Low RESET Output (MAX809)
Push-Pull RESET Output (MAX810)
140ms min Power-On Reset Pulse Width
12µA Supply Current
Guaranteed Reset Valid to VCC= +1V
Power Supply Transient Immunity
No External Components
3-Pin SC70 and SOT23 Packages
AEC-Q100 Qualified. Refer to Ordering Information for Specific /V Versions

Specifications

Reset Thresh. (V) 1.8 to 2.52.5 to 3.33.3 to 5.5
Reset Thresh. Accur. (%) (@ +25°C) 1.5
Reset Out Active LowPush-Pull
tRESET (min) 85ms to 300ms
Watchdog Feature No Watchdog
ICC (µA) (max) 60
Package/Pins SC70/3SOT23/3
BudgetaryPrice (See Notes) 1.07


MAX809LEUR+T Power Management ICs - PMIC by Analog Devices

SUPERVISORY CCT SMD SOT-23-3 809

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

The MAX803/MAX809/MAX810 are microprocessor (μP) supervisory circuits used to monitor the power supplies in μP and digital systems. They provide 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. These circuits perform 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 MAX803 has an open-drain output stage, while the MAX809/MAX810 have push-pull outputs. The MAX803’s open-drain RESET output requires a pullup resistor that can be connected to a voltage higher than VCC. The MAX803/MAX809 have an active-low RESET output, while the MAX810 has an active-high RESET output. The reset comparator is designed to ignore fast transients on VCC, and the outputs are guaranteed to be in the correct logic state for VCC down to 1V. Low supply current makes the MAX803/MAX809/MAX810 ideal for use in portable equipment. The MAX803 is available in a 3-pin SC70 package, and the MAX809/ MAX810 are available in 3-pin SC70 or SOT23 packages.

Specifications

Threshold Voltage 4.63V
No. of Supervisors / Monitors 1Monitors
Supply Voltage Min 1.2V
Supply Voltage Max 5.5V
Reset Type Active-Low
Digital IC Case SOT-23
No. of Pins 3Pins
Delay Time 240ms
Operating Temperature Min -40°C
Operating Temperature Max 105°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
IC Generic Number 809
Microprocessor Support IC Type Supervisory Circuit
Operating Temperature Range -40°C to +85°C
Output Current Max 20mA
Supply Current 24µA
Termination Type Surface Mount Device

Alternative Descriptions

U-Mon 4,63V -40/+105°C SOT23 | Schukat Electronic
Mp Reset Circuit, 5.5V, Sot-23-3 | Newark Electronics
SUPERVISORY CCT, SMD, SOT-23-3, 809 | element14
IC: Supervisor Integrated Circuit | Transfer Multisort Elektronik

Frequently Asked Questions

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Is the MAX809LEUR+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Schukat Electronic, Newark Electronics, element14, Farnell and Transfer Multisort Elektronik have stock available or on a lead time for MAX809LEUR+T .

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