S-80934CNNB-G84T2U

Product Overview

Category

S-80934CNNB-G84T2U belongs to the category of integrated circuits (ICs).

Use

This product 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: ±1.0% (±50mV) (at Ta = 25°C)
• Built-in delay circuit: 200ms (typ.)
• Small package size: SOT-23-5

Package

The S-80934CNNB-G84T2U is packaged in a small outline transistor (SOT) package, specifically SOT-23-5. This package provides compactness and ease of integration into various electronic devices.

Essence

The essence of S-80934CNNB-G84T2U lies in its ability to accurately detect voltage levels within a specified range and provide a reset signal when necessary. This functionality is crucial for ensuring proper operation and protection of electronic devices.

Packaging/Quantity

The product is typically supplied in tape and reel packaging, with a quantity of 3000 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.)
• Reset threshold voltage options: 2.3V, 2.8V, 3.1V, 4.0V, 4.6V, 5.0V
• Delay time: 200ms (typ.)

Detailed Pin Configuration

The S-80934CNNB-G84T2U has a total of 5 pins arranged as follows:

1. VDD: Supply voltage input
2. GND: Ground reference
3. RESET: Active low reset output
4. SENSE: Voltage detection pin
5. NC: No connection (not internally connected)

Functional Features

Voltage Detection

The S-80934CNNB-G84T2U is designed to accurately detect the voltage level applied to the SENSE pin within the specified range. It provides a reliable indication of the power supply status.

Reset Function

When the detected voltage falls below the preset threshold, the RESET pin outputs a low signal, indicating the need for a system reset. This feature ensures proper operation and prevents malfunctions caused by insufficient power supply voltage.

Delay Circuit

The built-in delay circuit ensures that the reset signal remains active for a specific duration (200ms typ.) after the voltage returns to the normal operating range. This delay prevents premature system resets due to temporary voltage fluctuations.

Advantages and Disadvantages

Advantages

• Wide voltage detection range allows compatibility with various power supply configurations.
• High accuracy ensures precise voltage monitoring.
• Low quiescent current minimizes power consumption.
• Small package size enables integration into space-constrained designs.
• Built-in delay circuit prevents false resets.

Disadvantages

• Limited number of available reset threshold voltage options.
• Not suitable for applications requiring higher voltage detection ranges.

Working Principles

The S-80934CNNB-G84T2U operates based on a voltage divider network connected to the SENSE pin. The internal comparator compares the divided voltage with the preset threshold voltage. When the voltage falls below the threshold, the comparator triggers the reset circuit, resulting in an active low signal on the RESET pin.

Detailed Application Field Plans

The S-80934CNNB-G84T2U finds applications in various electronic devices that require voltage monitoring and reset functionality. Some potential application fields include:

1. Battery-powered devices: Ensuring proper operation by monitoring battery voltage and initiating a reset when the voltage drops below a critical level.
2. Microcontroller systems: Providing a reliable reset signal to restart the system in case of power supply fluctuations or failures.
3. Industrial control systems: Monitoring power supply voltages to prevent damage to sensitive components and initiate system resets if necessary.

Detailed and Complete Alternative Models

1. S-80934CNMC-G8XT2U: Similar to S-80934CNNB-G84T2U but with a different package (SOT-23-5).
2. S-80934CNMC-G8Y-T2U: Similar to S-80934CNNB-G84T2U but with a different reset threshold voltage option (2.5V).

These alternative models offer similar functionality and characteristics, providing flexibility for different design requirements.

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