S-80851CNUA-B9CT2U

Product Overview

Category

S-80851CNUA-B9CT2U belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in electronic devices for voltage detection and reset functions.

Characteristics

• Voltage detection range: 1.6V to 6.0V
• Low supply current: 1.0µA (typ.)
• High accuracy voltage detection: ±2.0%
• Built-in delay circuit: 200ms (typ.)
• Small package size: SOT-23-5

Package

The S-80851CNUA-B9CT2U is packaged in a small outline transistor (SOT) package, specifically SOT-23-5.

Essence

The essence of this product lies in its ability to accurately detect voltage levels within a specified range and provide a reset signal when necessary.

Packaging/Quantity

The S-80851CNUA-B9CT2U is typically supplied in tape and reel packaging, with 3,000 units per reel.

Specifications

• Supply voltage range: 1.6V to 6.0V
• Operating temperature range: -40°C to +85°C
• Output type: Active low
• Quiescent current: 1.0µA (typ.)
• Accuracy of voltage detection: ±2.0%
• Delay time: 200ms (typ.)

Detailed Pin Configuration

The S-80851CNUA-B9CT2U has five pins arranged as follows:

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Pin 1: VDD (Supply voltage) Pin 2: GND (Ground) Pin 3: RESET (Output/reset signal) Pin 4: VOUT (Voltage detection output) Pin 5: VIN (Voltage input)

Functional Features

1. Voltage Detection: The S-80851CNUA-B9CT2U can accurately detect voltage levels within the specified range.
2. Reset Function: When the detected voltage falls below a certain threshold, the IC provides a reset signal to the connected device.
3. Low Power Consumption: With a quiescent current of only 1.0µA, this IC minimizes power consumption in battery-powered applications.
4. Built-in Delay Circuit: The integrated delay circuit ensures a stable reset signal is provided after the voltage returns to the normal range.

Advantages and Disadvantages

Advantages

• Wide voltage detection range allows for versatile application.
• High accuracy voltage detection ensures reliable operation.
• Low supply current prolongs battery life.
• Small package size enables space-saving designs.

Disadvantages

• Limited to voltage detection and reset functions, may not be suitable for complex applications requiring additional features.

Working Principles

The S-80851CNUA-B9CT2U operates based on a voltage divider network connected to the VIN pin. When the input voltage crosses a predetermined threshold, the internal comparator triggers the RESET pin, providing a low-level reset signal. The built-in delay circuit ensures a stable reset signal is maintained for a specific duration.

Detailed Application Field Plans

The S-80851CNUA-B9CT2U finds applications in various electronic devices that require voltage monitoring and reset functionality. Some potential application fields include:

1. Microcontrollers: Ensuring proper initialization and system stability upon power-up or voltage fluctuations.
2. Battery-Powered Devices: Preventing damage due to undervoltage conditions and facilitating safe shutdown.
3. Industrial Control Systems: Monitoring critical voltages to prevent equipment malfunction or damage.
4. Automotive Electronics: Providing reliable reset signals for microcontrollers and other components during power cycling.

Detailed and Complete Alternative Models

1. S-80850CNUA-B9CT2U: Similar to S-80851CNUA-B9CT2U, but with a different voltage detection range (1.3V to 6.0V).
2. S-80852CNUA-B9CT2U: Similar to S-80851CNUA-B9CT2U, but with a different delay time (400ms typ.).
3. S-80853CNUA-B9CT2U: Similar to S-80851CNUA-B9CT2U, but with a different package (SOT-89-5).

These alternative models offer similar functionality with slight variations in voltage range, delay time, or package type, allowing designers to choose the most suitable option for their specific requirements.

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