MAX809SEUR-T

Small form factor voltage detector with precise output voltage of +2.93V
4,693 Effective Inventory

MAX809SEUR-T

Effective Inventory4,693

Small form factor voltage detector with precise output voltage of +2.93V

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MAX809SEUR-T DataSheet
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MAX809SEUR-T Description

The MAX809SEUR-T is a high-performance voltage supervisor from Analog Devices, designed for reliable system operation and power management in various electronic systems. This device features a precision monitoring of 3.08V, low supply current of 3µA, and an open-drain active-low reset output, making it ideal for microcontrollers, DSPs, and other digital systems.

Pin Details

The MAX809SEUR-T is a compact SOT-23-3 voltage supervisor with only 1 pin available for manual reset input. The device includes pins for supply connections and ground.

Pin configuration

  • Pin 1: Manual Reset Input
  • Pin 2 (GND): Ground
  • Pin 3 (VCC): Positive Power Supply

Features

  • Voltage Supervisor with Manual Reset Input: Enables precise monitoring of voltage levels and control over the reset sequence.
  • Low Supply Current of 3µA: Optimized for battery-powered devices or power-sensitive applications where minimizing standby current is crucial.
  • Precision Monitoring of 3.08V: Provides flexible voltage detection and control.
  • Open-Drain Active-Low Reset Output: Enables debounced manual reset input and can be used to reset the system when an error occurs.
  • Smart SOT23 Package: Offers a compact and efficient solution for integrating the voltage supervisor into electronic circuits.
  • Wide Operating Temperature Range of -40°C to +125°C: Enables reliable operation in various environmental conditions.

Application

The MAX809SEUR-T is widely used as a voltage supervisor in various electronic systems, including microcontrollers, DSPs, and other digital systems, ensuring proper power-on reset and monitoring voltage levels.

Where to Use:

  • Microcontrollers
  • DSPs
  • Portable devices
  • Automotive electronics
  • (Industrial control systems)

Manufacturer

The MAX809SEUR-T is manufactured by Analog Devices, a leading semiconductor company that offers a wide range of innovative ICs and system solutions for various applications.

Packages

The MAX809SEUR-T comes in an SOT-23 package. This small-footprint package provides a compact and efficient solution for integrating the voltage supervisor into electronic circuits.

FAQ

Q: What is the maximum operating supply voltage of the MAX809SEUR-T?
A: It can operate up to 6.7V, making it suitable for various industrial and automotive applications.

Q: Can the MAX809SEUR-T be used in high-temperature environments?
A: Yes, it's designed to operate reliably across a wide temperature range of -40°C to +125°C, making it suitable for use in industrial and automotive applications.

Q: Is the MAX809SEUR-T compatible with various digital systems?
A: Yes, it can be used with various microcontrollers and DSPs, making it a versatile solution for power management and voltage supply applications.

MAX809SEUR-T

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Manufacturer Maxim Integrated Product Category ! Supervisors
Series - Type Simple Reset/Power-On Reset
Packaging ! Tape & Reel (TR) Package-Case Surface Mount
Operating-Temperature SOT-23-3 Mounting-Type 1
Supplier-Device-Package 140 ms Minimum Output 2.93V
Package Tape & Reel (TR) Product Status Obsolete
Programmable Not Verified Number of Voltages Monitored ! 1
Voltage - Threshold 2.93V Reset Active Low
Reset Timeout 140ms Minimum Operating Temperature ! -40°C ~ 105°C (TA)
Mounting Type Surface Mount Package / Case TO-236-3, SC-59, SOT-23-3
Supplier Device Package SOT-23-3 Base Product Number MAX809

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification MAX809SEUR-T PDF Download

FAQs

What is MAX809SEUR-T?

The MAX809SEUR-T is a microprocessor supervisory circuit designed by Maxim Integrated. It is used to monitor the power supply voltage of microcontrollers and reset the system in the event of a power failure or voltage drop, ensuring proper startup and operation.

How Does MAX809SEUR-T Work?

The MAX809SEUR-T works by continuously monitoring the supply voltage of the microcontroller. When the supply voltage drops below a predefined threshold, the MAX809SEUR-T asserts a reset signal to the microcontroller, forcing it to reset and initialize properly. Once the supply voltage reaches a stable level, the reset signal is released, allowing the microcontroller to start functioning.

How Many Pins does MAX809SEUR-T have and What are the Functions of the Pinout Configuration?

The MAX809SEUR-T is housed in an SOT-23-3 package. The pinout configuration includes:

  • RESET: Output reset pin. Connects to the microcontroller's reset input.
  • GND: Ground pin.
  • IN: Power supply voltage input pin.

What are the Pros and Cons of MAX809SEUR-T?

Pros:

  • Reliable Power Monitoring: Ensures reliable power supply monitoring for microcontrollers.
  • Compact Package: The SOT-23-3 package is space-efficient, suitable for compact designs.
  • Low Power Consumption: Operates with very low power, ideal for battery-operated devices.
  • Wide Voltage Range: Supports a wide range of supply voltages for versatility in various applications.

Cons:

  • External Components: May require additional external components such as pull-up resistors for specific applications.
  • Temperature Sensitivity: The reset voltage threshold may vary with temperature, requiring careful consideration in temperature-critical applications.

Are There Any Equivalents/Alternatives to MAX809SEUR-T for Recommendation?

  • The MAX809SEXR-T from Maxim Integrated is an alternative with a different package and temperature range.
  • Similar supervisory circuits include the ADM811 from Analog Devices and the TPS3808 from Texas Instruments.

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