BQ2954PN

Product Overview

Category

BQ2954PN belongs to the category of integrated circuits (ICs).

Use

This product is commonly used for power management applications.

Characteristics

• BQ2954PN is a voltage supervisor and reset IC.
• It provides accurate monitoring of system voltages.
• The device offers various features for power supply control and protection.

Package

BQ2954PN is available in a standard 8-pin PDIP (Plastic Dual In-line Package) package.

Essence

The essence of BQ2954PN lies in its ability to monitor and control system voltages, ensuring proper functioning and protection.

Packaging/Quantity

BQ2954PN is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply Voltage Range: 2.7V to 18V
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low, Open-Drain
• Reset Threshold Voltage: Adjustable
• Quiescent Current: 10µA (typical)

Detailed Pin Configuration

1. GND (Ground)
2. VDD (Supply Voltage)
3. MR (Manual Reset)
4. RESET (Reset Output)
5. VIT (Voltage Input)
6. VOS (Voltage Output)
7. NC (No Connection)
8. NC (No Connection)

Functional Features

• Accurate voltage monitoring and supervision
• Adjustable reset threshold voltage
• Manual reset input for immediate system reset
• Open-drain reset output for interfacing with other devices
• Low quiescent current for power efficiency

Advantages and Disadvantages

Advantages

• Precise voltage monitoring ensures system stability.
• Adjustable reset threshold accommodates different voltage requirements.
• Manual reset feature allows for immediate system reset.
• Open-drain reset output facilitates compatibility with various devices.
• Low quiescent current minimizes power consumption.

Disadvantages

• Limited pin configuration options may restrict certain applications.
• Lack of built-in protection features against voltage spikes or transients.

Working Principles

BQ2954PN operates by continuously monitoring the input voltage (VIT) and comparing it to the adjustable threshold voltage. When the input voltage falls below the set threshold, the reset output (RESET) is activated, signaling a system reset. The manual reset input (MR) provides an additional means to trigger a reset. The device's low quiescent current ensures minimal power consumption during operation.

Detailed Application Field Plans

BQ2954PN finds application in various fields, including: 1. Power supply units 2. Battery-powered systems 3. Industrial automation 4. Consumer electronics 5. Automotive electronics

Detailed and Complete Alternative Models

1. BQ2954SN: Similar to BQ2954PN but available in a smaller SOT-23 package.
2. BQ2954MPN: Enhanced version with additional protection features against voltage transients.
3. BQ2954LPN: Low-power variant designed for energy-efficient applications.

(Note: This list is not exhaustive and other alternative models may exist.)

In conclusion, BQ2954PN is an integrated circuit used for power management applications. It offers accurate voltage monitoring, adjustable reset thresholds, and various features for power control and protection. With its compact package and versatile functionality, BQ2954PN serves as a reliable solution in diverse fields such as power supply units, battery-powered systems, and consumer electronics.