MAX8213ACPE

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor
• Characteristics:
  • Monitors the voltage level of a power supply or battery
  • Provides a reset signal when the voltage falls below a specified threshold
  • Can be used in various electronic devices
• Package: PDIP (Plastic Dual In-Line Package)
• Essence: Voltage monitoring and reset generation
• Packaging/Quantity: Tube packaging, 25 pieces per tube

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Threshold Voltage Options: 2.93V, 3.08V, 3.63V, 4.38V, 4.63V
• Reset Timeout Period: 140ms, 280ms, 560ms, 1120ms
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low Push-Pull

Pin Configuration

The MAX8213ACPE has a total of 8 pins:

1. VCC - Supply Voltage Input
2. GND - Ground
3. RESET - Reset Output
4. MR - Manual Reset Input
5. TH - Threshold Voltage Selection Input
6. CT - Capacitor Connection for Reset Timeout
7. NC - No Connect
8. VCC - Supply Voltage Input

Functional Features

• Monitors the input voltage continuously
• Generates a reset signal when the voltage falls below the selected threshold
• Provides manual reset capability through the MR pin
• Offers multiple threshold voltage options for flexibility
• Allows adjustment of reset timeout period using an external capacitor

Advantages

• Wide supply voltage range allows compatibility with various systems
• Multiple threshold voltage options cater to different voltage monitoring requirements
• Active-low push-pull output ensures reliable reset signal transmission
• Manual reset input provides additional control over the reset function
• Adjustable reset timeout period allows customization based on application needs

Disadvantages

• Limited to PDIP package, which may not be suitable for space-constrained designs
• Noisy environments can potentially trigger false reset signals

Working Principles

The MAX8213ACPE operates by continuously monitoring the supply voltage connected to the VCC pin. When the voltage falls below the selected threshold voltage (determined by the TH pin), the IC generates an active-low reset signal on the RESET pin. This signal remains active until the voltage rises above the threshold level again or a manual reset is triggered through the MR pin.

The reset timeout period can be adjusted by connecting an external capacitor to the CT pin. This allows customization of the time delay before the reset signal is released after the voltage has returned to normal levels.

Application Field Plans

The MAX8213ACPE finds applications in various electronic devices where voltage monitoring and reset generation are crucial. Some potential application fields include:

1. Microcontrollers and microprocessors
2. Power management systems
3. Battery-powered devices
4. Industrial automation equipment
5. Automotive electronics
6. Home appliances
7. Medical devices

Alternative Models

If the MAX8213ACPE does not meet specific requirements, alternative models with similar functionality are available. Some notable alternatives include:

1. MAX823 - Offers adjustable threshold voltage and reset timeout period
2. MAX809 - Provides fixed threshold voltage options and integrated watchdog timer
3. MAX638 - Features low-power consumption and small package options

These alternative models can be considered based on specific application needs and design constraints.

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