MAX6864UK21D3L+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, high-accuracy voltage monitoring
• Package: SOT23-5
• Essence: Ensures reliable power supply by monitoring voltage levels
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: 2.1V, 2.3V, 2.5V, 2.7V, 2.9V, 3.0V, 3.1V, 3.3V, 3.5V, 3.7V, 4.0V, 4.5V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1.5µA (typical)
• Reset Timeout Period: 140ms (typical)

Detailed Pin Configuration

The MAX6864UK21D3L+T has a SOT23-5 package with the following pin configuration:

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• Pin 1: GND (Ground)
• Pin 2: RESET (Active-Low Reset Output)
• Pin 3: MR (Manual Reset Input)
• Pin 4: VCC (Supply Voltage)
• Pin 5: TH (Threshold Voltage Selection)

Functional Features

• Monitors the supply voltage and provides a reset signal when it falls below a specified threshold.
• Offers a manual reset input for system control.
• Low quiescent current consumption ensures minimal power usage.
• Wide range of threshold voltage options for flexibility in different applications.
• Reset timeout period prevents false resets during power-up or voltage fluctuations.

Advantages and Disadvantages

Advantages: - High accuracy voltage monitoring ensures reliable operation of electronic systems. - Low-power consumption extends battery life in portable devices. - Small package size allows for space-saving integration into compact designs. - Wide range of threshold voltage options provides versatility for various voltage levels.

Disadvantages: - Limited to voltage monitoring and reset functionality, may not suit all system requirements. - SOT23-5 package may require additional handling precautions during assembly.

Working Principles

The MAX6864UK21D3L+T operates by continuously monitoring the supply voltage. When the voltage falls below the selected threshold voltage, the device asserts a reset signal on the RESET pin. This signal remains active until the voltage rises above the threshold and a specified timeout period elapses. The manual reset input (MR) allows for external control of the reset function.

Detailed Application Field Plans

The MAX6864UK21D3L+T is commonly used in various applications where reliable voltage monitoring is critical. Some potential application fields include:

1. Battery-Powered Devices: Ensures proper shutdown or system reset when battery voltage drops below a safe level.
2. Industrial Control Systems: Monitors power supply integrity to prevent malfunctions or data corruption.
3. Automotive Electronics: Protects sensitive components from voltage fluctuations and ensures proper system operation.
4. Medical Equipment: Provides voltage supervision to maintain patient safety and prevent equipment damage.
5. Consumer Electronics: Safeguards against power supply issues in smartphones, tablets, and other portable devices.

Detailed and Complete Alternative Models

1. MAX6864UK21D3LT+: Similar to MAX6864UK21D3L+T but without tape and reel packaging.
2. MAX6864UK21D3L+T/V: Variant with extended operating temperature range (-40°C to +125°C).
3. MAX6864UK21D3L+T/AT: Alternative model with an active-high reset output.

These alternative models offer similar voltage monitoring and reset functionality, catering to different packaging or temperature requirements.

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