BQ29410PWR

Product Overview

Category

BQ29410PWR belongs to the category of integrated circuits (ICs) and specifically falls under the family of battery protection and authentication ICs.

Use

The BQ29410PWR is primarily used for battery protection in various electronic devices. It ensures the safe and reliable operation of rechargeable batteries by monitoring their voltage, current, and temperature.

Characteristics

• Battery protection and authentication IC
• Monitors voltage, current, and temperature
• Provides overcharge, over-discharge, and short-circuit protection
• Supports authentication and communication protocols

Package

BQ29410PWR is available in a small form factor package known as TSSOP-14. This package offers ease of integration into different circuit designs and provides thermal efficiency.

Essence

The essence of BQ29410PWR lies in its ability to safeguard rechargeable batteries from potential hazards such as overcharging, over-discharging, and short-circuits. It ensures the longevity and reliability of batteries in electronic devices.

Packaging/Quantity

BQ29410PWR is typically supplied in reels containing 2500 units per reel. This packaging quantity allows for efficient manufacturing and distribution processes.

Specifications

• Input Voltage Range: 2.5V to 18V
• Operating Temperature Range: -40°C to +85°C
• Overcharge Detection Voltage: 4.25V to 4.45V
• Overdischarge Detection Voltage: 2.0V to 3.1V
• Short-Circuit Detection Delay Time: 5μs to 20μs
• Authentication Protocol Support: I2C, SMBus

Detailed Pin Configuration

The BQ29410PWR features a total of 14 pins, each serving a specific function. The pin configuration is as follows:

1. VDD: Power supply input
2. GND: Ground reference
3. SDA: Serial data line for communication
4. SCL: Serial clock line for communication
5. ALERT: Output pin for alert indication
6. BAT: Battery voltage sense input
7. TS: Temperature sense input
8. PROG: Programming pin for setting detection thresholds
9. NTC: Negative temperature coefficient input
10. VSS: Negative supply voltage
11. VREF: Reference voltage output
12. VCC: Positive supply voltage
13. VOUT: Output voltage
14. NC: No connection

Functional Features

Overcharge Protection

BQ29410PWR continuously monitors the battery voltage during charging and triggers an alert or takes appropriate action if the voltage exceeds the predefined threshold, preventing overcharging.

Overdischarge Protection

The IC monitors the battery voltage during discharging and activates a protection mechanism when the voltage drops below the specified threshold, safeguarding against over-discharge.

Short-Circuit Protection

In the event of a short circuit, BQ29410PWR rapidly detects the excessive current flow and promptly disconnects the battery from the load, preventing potential damage to the battery and the connected circuitry.

Authentication Support

The IC supports authentication protocols such as I2C and SMBus, enabling secure communication between the battery and the host device. This feature ensures the use of genuine batteries and enhances system security.

Advantages and Disadvantages

Advantages

• Comprehensive battery protection features
• Small form factor package for easy integration
• Wide operating voltage range
• Support for authentication protocols
• Efficient short-circuit detection and response

Disadvantages

• Limited pin count may restrict additional functionalities
• Requires external programming for customization

Working Principles

BQ29410PWR operates by continuously monitoring the battery voltage, current, and temperature. It compares these parameters with predefined thresholds to detect potential hazards such as overcharging, over-discharging, and short-circuits. Upon detection, it triggers appropriate actions to protect the battery and the connected circuitry.

Detailed Application Field Plans

BQ29410PWR finds applications in various electronic devices that utilize rechargeable batteries, including but not limited to: - Mobile phones - Laptops and tablets - Portable gaming consoles - Power banks - Electric vehicles - Medical devices

Detailed and Complete Alternative Models

1. BQ29700PW: Battery protection and authentication IC with extended features and higher pin count.
2. BQ29209DR: Battery protection IC with integrated fuel gauge functionality.
3. BQ24075RGTR: Battery charger IC with built-in protection mechanisms.

These alternative models offer different capabilities and can be considered based on specific application requirements.

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