MAX6388XS22D5-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics: Low-power, precision voltage monitoring, adjustable reset threshold, small package size
• Package: SOT23-5
• Essence: The MAX6388XS22D5-T is a voltage monitor and reset circuit designed for use in various electronic devices. It ensures proper operation by monitoring the supply voltage and generating a reset signal when the voltage falls below a certain threshold.
• Packaging/Quantity: The MAX6388XS22D5-T is available in tape and reel packaging with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Options: Adjustable from 1.2V to 4.63V in 100mV steps
• Reset Timeout Period: Fixed 140ms
• Quiescent Current: 3µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX6388XS22D5-T has a total of 5 pins arranged as follows:

```

---

| | --| VCC GND |-- Pin 1: Ground (GND) --| MR RST |-- Pin 2: Reset Output (RST) --| TH VCC |-- Pin 3: Supply Voltage (VCC) --| ADJ GND |-- Pin 4: Threshold Adjustment (ADJ) --| GND GND |-- Pin 5: Ground (GND) |___________| ```

Functional Features

• Monitors the supply voltage and generates a reset signal when it falls below the set threshold.
• Adjustable reset threshold allows customization for different applications.
• Fixed reset timeout period ensures proper system reset.
• Low quiescent current minimizes power consumption.

Advantages and Disadvantages

Advantages: - Precise voltage monitoring helps prevent system malfunctions. - Adjustable reset threshold provides flexibility for various voltage requirements. - Small package size saves board space. - Low-power operation extends battery life in portable devices.

Disadvantages: - Fixed reset timeout period may not be suitable for all applications. - Limited supply voltage range (1.6V to 5.5V) may restrict usage in certain systems.

Working Principles

The MAX6388XS22D5-T operates by continuously monitoring the supply voltage connected to the VCC pin. When the voltage drops below the set threshold, the circuit generates a reset signal on the RST pin. This signal can be used to reset the microcontroller or other components in the system, ensuring proper operation even during power fluctuations or brownout conditions.

Detailed Application Field Plans

The MAX6388XS22D5-T is widely used in various electronic devices where reliable voltage monitoring and reset functionality are crucial. Some common application fields include:

1. Microcontrollers and Embedded Systems: Ensures proper system initialization and prevents data corruption during power-up or voltage fluctuations.
2. Industrial Control Systems: Provides reliable reset functionality for critical control units, preventing system lock-ups or erratic behavior.
3. Automotive Electronics: Monitors the vehicle's electrical system to ensure stable operation of essential components like engine control units (ECUs) and safety systems.
4. Consumer Electronics: Protects sensitive electronic devices from damage due to improper voltage levels, enhancing their lifespan and reliability.

Detailed and Complete Alternative Models

1. MAX6387XS22D5-T: Similar to MAX6388XS22D5-T but with a fixed reset threshold of 2.2V.
2. MAX6389XS22D5-T: Similar to MAX6388XS22D5-T but with a fixed reset threshold of 2.9V.
3. MAX6390XS22D5-T: Similar to MAX6388XS22D5-T but with a fixed reset threshold of 3.1V.

These alternative models offer different fixed reset thresholds to accommodate specific voltage requirements in various applications.

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