MAX809SEUR+T The MAX809SEUR+T is a microprocessor supervisory circuit from Analog Devices, designed to monitor power supplies. It provides a reset signal when VCC drops below a threshold.
Mfr Part #:

MAX809SEUR+T

Available from 2 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The MAX809SEUR+T is a microprocessor supervisory circuit from Analog Devices, designed to monitor power supplies. It provides a reset signal when VCC drops below a threshold.
Total Stock: 38,486 pcs
$ Price Range: $0.75

MAX809SEUR+T Available from 2 distributors

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
35,000 pcs
35000 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
3,486 pcs
3486 pcs On Request 1 On Request On Request 21+ On Request On Request

MAX809SEUR+T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Lead Style
Mounting Type
Number of Voltages Monitored
Operating Temperature
Output
Reset
Reset Timeout
SVHC Present
Supplier Device Package
Supplier Package
Supply Current
Type
Voltage

MAX809SEUR+T Description

Short technical summary and product information.

The MAX809SEUR+T is a microprocessor supervisory circuit from Analog Devices, designed for monitoring power supplies in digital systems. It asserts a reset signal when the VCC supply voltage falls below a preset threshold, maintaining the reset for at least 140ms after VCC rises above the threshold. This device is suitable for +5V, +3.3V, +3.0V, or +2.5V powered circuits.

 

Key electrical characteristics include a nominal operating voltage of 2.93V, an active-low push-pull reset output, and a reset timeout of 140ms minimum. The circuit guarantees a valid reset down to VCC = 1V and offers power supply transient immunity. It operates with a low supply current of 12μA, making it ideal for portable equipment.

 

The MAX809SEUR+T is available in a 3-pin SOT-23-3 package, suitable for surface mount applications. Its compact size and low power consumption make it a reliable choice for critical μP and μC power monitoring in computers, controllers, intelligent instruments, and automotive applications.

MAX809SEUR+T Quick Information

Product Type: Supervisor IC
Series: MAX809
Canonical Name: MAX809SEUR+T Microprocessor Supervisory Circuit
Subcategory: Power Supply Supervisors

MAX809SEUR+T Compliance

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

MAX809SEUR+T Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

MAX809SEUR+T Features

  • Monitors single power supply voltage.
  • Asserts active-low reset signal.
  • 140ms minimum power-on-reset pulse.
  • Low 12μA typical supply current.
  • Compact SOT-23-3 surface mount package.

MAX809SEUR+T Applications

  • Critical μP and μC power monitoring.
  • Ideal for portable and battery-powered equipment.
  • Used in computers and controllers.
  • Suitable for intelligent instruments.
  • Applicable in automotive systems.

MAX809SEUR+T FAQs

7 frequently asked questions generated from this part’s specifications.
What is the threshold voltage of the MAX809SEUR+T?

The threshold voltage is 2.93V.

What package is the MAX809SEUR+T available in?

It is available in a SOT-23-3 package, also known as TO-236-3 or SC-59.

What is the operating temperature range of the MAX809SEUR+T?

The operating temperature range is -40°C to 105°C.

What is the reset timeout of the MAX809SEUR+T?

The minimum reset timeout is 140ms.

What type of output does the MAX809SEUR+T have?

It has a push-pull, totem pole output that is active low.

What is the typical supply current of the MAX809SEUR+T?

The typical supply current is 12µA.

How many voltages does the MAX809SEUR+T monitor?

It monitors a single voltage.

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