S-8209AAA-I8T1U

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Detector with Watchdog Timer
• Characteristics:
  • Low power consumption
  • Wide operating voltage range
  • Built-in watchdog timer
  • Small package size
• Package: I8T1U (8-pin ultra-thin small outline package)
• Essence: S-8209AAA-I8T1U is a voltage detector IC with a built-in watchdog timer. It is designed to monitor the voltage level of a power supply and provide a reset signal when the voltage falls below a certain threshold.
• Packaging/Quantity: The S-8209AAA-I8T1U is typically sold in reels or tubes, with a quantity of 2500 units per reel.

Specifications

• Operating Voltage Range: 1.6V to 6.0V
• Detection Voltage Accuracy: ±1.5%
• Watchdog Timer Timeout Period: 1.6s (typical)
• Operating Temperature Range: -40°C to +85°C
• Power Consumption: 1.0μA (typical)

Detailed Pin Configuration

The S-8209AAA-I8T1U has the following pin configuration:

```

---

| | --| VDD | --| GND | --| RESET | --| WDI | --| VDDH | --| TEST | --| VOUT | |___________| ```

• VDD: Power supply input
• GND: Ground reference
• RESET: Output pin for reset signal
• WDI: Input pin for watchdog timer activation
• VDDH: High voltage power supply input
• TEST: Test mode pin
• VOUT: Output pin for voltage detection status

Functional Features

1. Voltage Monitoring: The S-8209AAA-I8T1U continuously monitors the voltage level of the power supply and generates a reset signal when the voltage falls below the detection threshold.
2. Watchdog Timer: It incorporates a built-in watchdog timer that can be activated by toggling the WDI pin. If the watchdog timer is not refreshed within the specified timeout period, a reset signal is generated.
3. Low Power Consumption: The IC has low power consumption, making it suitable for battery-powered applications.
4. Wide Operating Voltage Range: It operates over a wide voltage range, allowing compatibility with various power supply systems.
5. Small Package Size: The ultra-thin small outline package (I8T1U) enables space-saving and compact designs.

Advantages and Disadvantages

Advantages

• Reliable voltage monitoring and reset functionality
• Built-in watchdog timer for system integrity
• Low power consumption extends battery life
• Wide operating voltage range for versatile applications
• Compact package size for space-constrained designs

Disadvantages

• Limited number of pins may restrict additional functionalities
• Not suitable for high-voltage applications above 6.0V

Working Principles

The S-8209AAA-I8T1U operates by comparing the input voltage with a reference voltage internally set within the IC. When the input voltage drops below the detection threshold, the RESET pin is asserted, generating a reset signal to the connected microcontroller or system. Additionally, the watchdog timer can be activated by toggling the WDI pin. If the WDI pin is not refreshed within the specified timeout period, the RESET pin is also asserted.

Detailed Application Field Plans

The S-8209AAA-I8T1U finds applications in various fields where reliable voltage monitoring and system reset functionality are required. Some potential application areas include: 1. Battery-Powered Devices: Portable electronics, IoT devices, and wearable devices can benefit from the low power consumption and voltage monitoring capabilities of the IC. 2. Automotive Electronics: The IC can be used in automotive systems to monitor the battery voltage and ensure proper system operation. 3. Industrial Control Systems: It can be employed in industrial control systems to monitor power supply voltages and provide reset signals in case of voltage fluctuations or failures. 4. Home Automation: The IC can be utilized in home automation systems to monitor power supply integrity and trigger appropriate actions in case of voltage anomalies.

Detailed and Complete Alternative Models

1. S-8209AAA-I8T1U: The model discussed in this entry.
2. S-8209AAB-I8T1U: Similar to S-8209AAA-I8T1U but with extended operating temperature range (-40°C to +105°C).
3. S-8209AAC-I8T1U: Similar to S-8209AAA-I8T1U but with higher detection voltage accuracy (±1%).
4. S-8209AAD-I8T1U: Similar to S-