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MAX809LEUR+T The MAX809LEUR+T is a microprocessor supervisory circuit from Analog Devices, designed to monitor power supplies. It features an active-low reset output and a 140ms reset timeout.
Mfr Part #:

MAX809LEUR+T

Available from 3 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The MAX809LEUR+T is a microprocessor supervisory circuit from Analog Devices, designed to monitor power supplies. It features an active-low reset output and a 140ms reset timeout.
✓ Total Stock: 1,019 pcs
$ Price Range: $0.75

MAX809LEUR+T Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Risen Electronics ✓
Non-Authorised Inventory information
800 pcs
On Request
800 pcs On Request 1 On Request On Request On Request On Request 2026-02-23 21:33:16
MW.FEP S.p.A. ✓
Non-Authorised Inventory information
217 pcs
On Request
217 pcs On Request 1 On Request On Request On Request On Request On Request
Fe Components ✓
Non-Authorised Inventory information
2 pcs
On Request
2 pcs On Request 2 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

MAX809LEUR+T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Mounting Type
Number of Voltages Monitored
Operating Temperature
Output
Reset
Reset Timeout
Supplier Device Package
Supplier Package
Supply Current
Type
Voltage
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MAX809LEUR+T Description

Short technical summary and product information.

The MAX809LEUR+T is a microprocessor supervisory circuit from Analog Devices Inc. (formerly Maxim Integrated) used for monitoring power supplies in digital systems. It provides a reset signal when the VCC supply voltage drops below a preset threshold, maintaining the reset for at least 140ms after VCC rises above the threshold. This device operates with a nominal voltage of 4.63V and features an active-low reset output.

 

Designed for reliability and low cost, the MAX809LEUR+T eliminates the need for external components. It has a low supply current of 12μA, making it suitable for portable and battery-powered equipment. The reset function is guaranteed to be valid down to 1V VCC. The device is available in a compact SOT-23-3 surface-mount package, suitable for various applications including computers, controllers, and automotive systems.

 

Key features include precision monitoring of power supply voltages, a 140ms minimum power-on-reset pulse width, and power supply transient immunity. The operating temperature range is -40°C to 105°C.

MAX809LEUR+T Quick Information

Product Type: Supervisor IC
Canonical Name: MAX809LEUR+T Microprocessor Supervisory Circuit
Subcategory: Supervisory Circuits

MAX809LEUR+T Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

MAX809LEUR+T Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

MAX809LEUR+T Features

  • Monitors single power supply voltage.
  • Asserts active-low reset signal.
  • 140ms minimum reset pulse width.
  • Low 12μA typical supply current.
  • Operates down to 1V VCC.

MAX809LEUR+T Applications

  • Critical μP and μC power monitoring.
  • Portable and battery-powered equipment.
  • Automotive applications.
  • Computers and controllers.
  • Intelligent instruments.

MAX809LEUR+T FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage of MAX809LEUR+T?

The nominal operating voltage is 4.63V.

What package is the MAX809LEUR+T available in?

It is available in TO-236-3, SC-59, SOT-23-3 packages, with the supplier package being SOT-23-3.

What is the operating temperature range?

-40°C to 105°C (TA).

What is the reset timeout?

Minimum reset timeout is 140ms.

What is the supply current?

Typical supply current is 12μA.

What is the output type?

Push-pull, totem pole, active low.

How many voltages does it monitor?

It monitors 1 voltage.

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