STM6717TGWY6F

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High efficiency, low power consumption
• Package: SOT-23-6
• Essence: Voltage Supervisor with Watchdog Timer
• 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
• Watchdog Timeout Period: Adjustable from 6.4ms to 51.2s
• Reset Threshold Voltage Options: 2.63V, 3.08V, 3.45V, 4.38V
• Quiescent Current: 1.5µA (typical)

Detailed Pin Configuration

The STM6717TGWY6F IC has a total of 6 pins arranged as follows:

```

---

| | --| VDD GND |-- Pin 1: Ground (GND) --| RESET OUT |-- Pin 2: Reset Output (Active Low) --| MR |-- Pin 3: Manual Reset Input --| WDI |-- Pin 4: Watchdog Timer Input --| VDD |-- Pin 5: Power Supply (VDD) |___________| ```

Functional Features

1. Voltage Supervision: Monitors the supply voltage and generates a reset signal when it falls below a specified threshold.
2. Watchdog Timer: Provides a mechanism to detect and recover from software or hardware failures by resetting the system if a periodic input signal is not received within a set time period.
3. Manual Reset: Allows for an external reset signal to be applied to the device, overriding the internal monitoring circuitry.
4. Adjustable Timeout Period: The watchdog timer's timeout period can be configured to suit the specific application requirements.
5. Low Power Consumption: The IC operates with a very low quiescent current, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages: - High efficiency power management solution - Small form factor package - Wide supply voltage range - Adjustable reset threshold voltage options - Low power consumption

Disadvantages: - Limited number of available alternative models - May require additional external components for certain applications

Working Principles

The STM6717TGWY6F is designed to monitor the supply voltage and provide a reset signal when it falls below a specified threshold. It also includes a watchdog timer that detects software or hardware failures by monitoring a periodic input signal. If the input signal is not received within the configured timeout period, the device generates a reset signal to restart the system. The manual reset input allows for an external reset signal to override the internal monitoring circuitry.

Detailed Application Field Plans

The STM6717TGWY6F is commonly used in various applications where reliable power management and system monitoring are critical. Some potential application fields include:

1. Embedded Systems: Provides voltage supervision and watchdog timer functionality for microcontrollers, ensuring system stability and reliability.
2. Industrial Automation: Monitors power supply integrity and resets the system in case of voltage fluctuations or failures, preventing data loss or equipment damage.
3. Automotive Electronics: Ensures proper operation of critical systems by monitoring supply voltages and resetting the system if necessary.
4. Medical Devices: Offers voltage supervision and watchdog timer capabilities to ensure the safe and reliable operation of medical equipment.
5. Consumer Electronics: Provides power management and system monitoring features for portable devices, enhancing overall performance and user experience.

Detailed and Complete Alternative Models

While the STM6717TGWY6F offers a comprehensive set of features, there are a few alternative models available in the market that can be considered for similar applications. Some notable alternatives include:

1. MAX6717: Voltage supervisor with adjustable reset threshold and watchdog timer from Maxim Integrated.
2. LTC2937: Precision voltage monitor and watchdog timer with adjustable timeout period from Linear Technology.
3. TPS3839: Ultra-low power voltage supervisor with programmable reset threshold and watchdog timer from Texas Instruments.

These alternative models provide similar functionality but may have different specifications and package options to suit specific application requirements.

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