Overview
The STM811RW16F is a microprocessor supervisory circuit designed by STMicroelectronics. This component is specifically engineered for monitoring power supply voltages and ensuring the reliable operation of embedded systems. It is widely used in various applications, including desktop, laptop, and notebook computers, test and measurement instruments, portable battery-powered equipment, and multiple-output power supplies.
Key Specifications
| Parameter | Value |
|---|---|
| Brand | STMicroelectronics |
| Number of Supervisors | 1 |
| Manual Reset | Yes |
| Output Driver | Active Low, Push-Pull |
| Mounting Type | Surface Mount |
| Maximum Reset Active Time | 280 ms |
| Package Type | SOT-143 |
| Pin Count | 4 |
| Dimensions | 3.04 x 1.4 x 1.02 mm |
| Maximum Monitored Voltage | 2.7 V |
| Maximum Operating Supply Voltage | 5.5 V |
| Minimum Operating Temperature | -40 °C |
| Minimum Operating Supply Voltage | 1 V |
| Minimum Monitored Voltage | 2.63 V |
| Maximum Operating Temperature | +85 °C |
Key Features
- Supervision: Monitors voltage levels for reliable system operation.
- Watchdog Timer: Ensures processor reset during power issues, with a 16-second timeout.
- Power Fail Detection: Identifies power outages to maintain system integrity.
- Manual Reset: Allows for manual reset of the system.
- Low Power Consumption: Designed for efficient energy usage in embedded applications.
- Wide Operating Voltage Range: Supports reliable operation across a broad set of input voltages.
- Active Low, Push-Pull Output Driver: Provides a clear signal when the monitored voltage falls below the preset threshold.
- Safe Operating Temperature Range: Operates reliably between -40 °C and +85 °C.
Applications
The STM811RW16F is versatile and is commonly used in various applications, including:
- Desktop, laptop, and notebook computers
- Test and measurement instruments
- Portable battery-powered equipment
- Multiple-output power supplies
- Industrial automation
- Telecommunications
- Consumer electronics
Q & A
- Q: What is the primary function of the STM811RW16F?
A: The STM811RW16F is a microprocessor supervisory circuit designed to monitor power supply voltages and reset the system when necessary.
- Q: What is the package type of the STM811RW16F?
A: The STM811RW16F comes in a SOT-143 package.
- Q: What is the operating temperature range of the STM811RW16F?
A: The STM811RW16F operates reliably between -40 °C and +85 °C.
- Q: Does the STM811RW16F have a watchdog timer?
A: Yes, the STM811RW16F includes a watchdog timer with a 16-second timeout.
- Q: What is the minimum operating supply voltage for the STM811RW16F?
A: The minimum operating supply voltage is 1 V.
- Q: Can the STM811RW16F be manually reset?
A: Yes, the STM811RW16F has a manual reset option.
- Q: What types of applications is the STM811RW16F commonly used in?
A: It is used in desktop, laptop, and notebook computers, test and measurement instruments, portable battery-powered equipment, and multiple-output power supplies, among others.
- Q: How does the STM811RW16F ensure system integrity during power outages?
A: The STM811RW16F includes power fail detection to identify power outages and maintain system integrity.
- Q: What is the maximum monitored voltage for the STM811RW16F?
A: The maximum monitored voltage is 2.7 V.
- Q: How can I obtain detailed information about the STM811RW16F, such as application notes and factory information?
A: You can find comprehensive details about the STM811RW16F through the datasheet available on the manufacturer's website or through authorized distributors.
