STMPS2272TTR

Product Overview

• Category: Power Management IC
• Use: Voltage Supervisor and Reset Generator
• Characteristics: Low-power, high-accuracy, small package size
• Package: Thin QFN-16 (3x3 mm)
• Essence: Provides voltage monitoring and reset generation for microcontrollers and other digital systems
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Reset Threshold Accuracy: ±1.5%
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Quiescent Current: 1.5µA (typical)

Detailed Pin Configuration

The STMPS2272TTR has a total of 16 pins arranged as follows:

1. VDD: Supply voltage input
2. GND: Ground reference
3. RESET: Active-low reset output
4. MR: Manual reset input
5. TO: Timeout period selection pin
6. NC: No connection
7. NC: No connection
8. NC: No connection
9. NC: No connection
10. NC: No connection
11. NC: No connection
12. NC: No connection
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. NC: No connection

Functional Features

• Monitors the supply voltage and generates a reset signal when it falls below a specified threshold.
• Adjustable reset timeout period allows customization based on system requirements.
• Manual reset input allows external control over the reset function.
• Low quiescent current ensures minimal power consumption.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - High reset threshold accuracy ensures reliable operation. - Small package size saves board space. - Low quiescent current minimizes power consumption.

Disadvantages: - Limited number of pins may restrict the functionality in complex systems. - Lack of additional features such as power sequencing or voltage monitoring for multiple supplies.

Working Principles

The STMPS2272TTR operates by continuously monitoring the supply voltage. When the voltage falls below the specified threshold, it generates an active-low reset signal. The reset timeout period can be adjusted to meet the system's requirements. The manual reset input allows external control over the reset function.

Detailed Application Field Plans

The STMPS2272TTR is commonly used in various applications, including:

1. Microcontroller-based systems
2. Digital communication devices
3. Industrial automation equipment
4. Battery-powered devices
5. Consumer electronics

Detailed and Complete Alternative Models

1. MAX809: Voltage Supervisor and Reset Generator IC by Maxim Integrated
2. TPS383: Precision Voltage Supervisor with Programmable Delay Time by Texas Instruments
3. ADM6316: Microprocessor Supervisory Circuit by Analog Devices
4. MCP101: Voltage Supervisor with Manual Reset Input by Microchip Technology

These alternative models offer similar functionalities and can be considered as alternatives to the STMPS2272TTR based on specific application requirements.

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