LM3880MF-1AD/NOPB

Product Overview

Category

The LM3880MF-1AD/NOPB belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for power management applications.

Characteristics

• The LM3880MF-1AD/NOPB is a low-power voltage supervisor with a watchdog timer.
• It operates over a wide input voltage range, making it suitable for various applications.
• This IC provides accurate monitoring and control of power supply voltages.
• It offers a built-in watchdog timer for system reset and recovery functions.

Package

The LM3880MF-1AD/NOPB is available in a small outline package (SOP) with 8 pins.

Essence

The essence of the LM3880MF-1AD/NOPB lies in its ability to monitor and regulate power supply voltages, ensuring stable operation of electronic systems.

Packaging/Quantity

The LM3880MF-1AD/NOPB is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 1.6V to 5.5V
• Output Voltage Options: 3.3V, 2.5V, 1.8V, or Adjustable
• Watchdog Timer Timeout Period: Programmable (1.6s to 102.4s)
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 10µA (typical)

Pin Configuration

The LM3880MF-1AD/NOPB has the following pin configuration:

```

---

| | --| VDD | --| GND | --| RESET | --| WDI | --| MR | --| VOUT | --| NC | |___________| ```

• VDD: Power supply input
• GND: Ground reference
• RESET: Active-low reset output
• WDI: Watchdog timer input
• MR: Manual reset input
• VOUT: Output voltage selection pin
• NC: No connection

Functional Features

1. Voltage Monitoring: The LM3880MF-1AD/NOPB continuously monitors the power supply voltage and generates a reset signal if it falls below a specified threshold.
2. Watchdog Timer: It includes a built-in watchdog timer that detects system malfunctions or lock-ups. If the watchdog timer is not periodically reset, a system reset signal is generated.
3. Adjustable Output Voltage: The IC allows for selecting the desired output voltage level through the VOUT pin.
4. Manual Reset: The MR pin provides an option for manual reset, allowing users to initiate a system reset externally.

Advantages and Disadvantages

Advantages

• Wide input voltage range enables compatibility with various power supply sources.
• Accurate voltage monitoring ensures reliable operation of electronic systems.
• Built-in watchdog timer enhances system reliability by detecting and recovering from malfunctions.
• Small package size facilitates space-constrained applications.

Disadvantages

• Limited output voltage options may not cater to all specific requirements.
• Lack of flexibility in terms of package options.

Working Principles

The LM3880MF-1AD/NOPB operates by continuously monitoring the input voltage. If the voltage drops below a predetermined threshold, the IC generates a reset signal to initiate a system reset. Additionally, the built-in watchdog timer must be periodically reset to prevent it from triggering a system reset. Failure to reset the watchdog timer within the specified timeout period will result in a system reset signal being generated.

Detailed Application Field Plans

The LM3880MF-1AD/NOPB finds applications in various fields, including but not limited to: - Consumer electronics - Industrial automation - Automotive systems - Medical devices - Telecommunications

Detailed and Complete Alternative Models

1. LM3880MF-1AC/NOPB: Similar to the LM3880MF-1AD/NOPB, but with a different output voltage range.
2. LM3880MF-2AD/NOPB: A variant with additional features, such as adjustable watchdog timer timeout period.
3. LM3880MF-3AD/NOPB: Another alternative model with extended operating temperature range.

These alternative models offer similar functionality but may have variations in specifications or additional features to cater to specific application requirements.

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