MAX8216ESD+T

Product Overview

• Category: Integrated Circuit
• Use: Voltage Monitor and Reset Circuit
• Characteristics: Low-power, precision voltage monitor with reset output
• Package: 14-pin TDFN (Thin Dual Flat No-Lead) package
• Essence: Monitors the voltage level of a power supply and provides a reset signal when the voltage falls below a specified threshold
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Supply Voltage Range: 1.6V to 6.5V
• Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 5.0V
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 4µA (typical)

Pin Configuration

The MAX8216ESD+T has the following pin configuration:

1. GND: Ground
2. RESET: Active-low reset output
3. MR: Manual reset input
4. VCC: Positive supply voltage
5. TH: Threshold voltage selection input
6. CT: Capacitor connection for reset timeout adjustment
7. RESET: Active-low reset output
8. GND: Ground
9. GND: Ground
10. GND: Ground
11. GND: Ground
12. GND: Ground
13. GND: Ground
14. VCC: Positive supply voltage

Functional Features

• Monitors the voltage level of a power supply
• Provides a reset signal when the voltage falls below the selected threshold
• Adjustable reset timeout period allows customization based on application requirements
• Manual reset input for immediate system reset
• Low quiescent current ensures minimal power consumption

Advantages and Disadvantages

Advantages: - Precise voltage monitoring for reliable system operation - Adjustable reset timeout period for flexibility in different applications - Low-power design for energy-efficient operation - Manual reset input for immediate system reset

Disadvantages: - Limited threshold voltage options may not cover all voltage requirements - Single-channel design limits simultaneous monitoring of multiple power supplies

Working Principles

The MAX8216ESD+T operates by comparing the supply voltage with the selected threshold voltage. When the supply voltage falls below the threshold, the reset output is activated, indicating a low-voltage condition. The reset output remains active until the supply voltage rises above the threshold or a manual reset signal is received.

The reset timeout period can be adjusted using an external capacitor connected to the CT pin. This allows customization of the time delay between the supply voltage rising above the threshold and the reset output deactivating.

Detailed Application Field Plans

The MAX8216ESD+T is commonly used in various applications where voltage monitoring and system reset functionality are required. Some specific application fields include:

1. Power Supply Monitoring: Ensuring stable operation of electronic devices by monitoring the power supply voltage and initiating a system reset when necessary.
2. Battery-Powered Systems: Protecting battery-powered systems from undervoltage conditions and preventing damage to sensitive components.
3. Industrial Control Systems: Providing reliable voltage monitoring and reset capabilities in industrial control systems to maintain uninterrupted operation.
4. Automotive Electronics: Safeguarding automotive electronics by monitoring the vehicle's power supply and triggering a reset if the voltage drops below a critical level.

Detailed and Complete Alternative Models

1. MAX823LEUK+: Similar to MAX8216ESD+T, but available in a 5-pin SOT23 package.
2. MAX809SEUR+: Voltage monitor and reset circuit with adjustable reset timeout period, available in a 3-pin SOT23 package.
3. MAX6381XR26D3-T: Precision voltage monitor with reset output, featuring a fixed threshold voltage of 2.6V and available in a 5-pin SC70 package.

These alternative models offer similar functionality to the MAX8216ESD+T and can be considered based on specific application requirements.

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