BQ29723DSET

Product Overview

Category

BQ29723DSET belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for battery protection in various electronic devices.

Characteristics

• Integrated circuit with advanced battery protection features
• Designed to safeguard batteries from overcharging, over-discharging, and short-circuiting
• Provides accurate voltage and current monitoring capabilities
• Offers configurable protection thresholds and delay times

Package

BQ29723DSET is available in a small outline package (SOP) format.

Essence

The essence of this product lies in its ability to ensure the safe and efficient operation of batteries by preventing potential damage caused by improper charging or discharging.

Packaging/Quantity

Each package of BQ29723DSET contains one unit of the integrated circuit.

Specifications

• Supply Voltage: 2.5V to 18V
• Operating Temperature Range: -40°C to +85°C
• Number of Pins: 8
• Protection Threshold Accuracy: ±25mV
• Overcharge Detection Voltage Range: 2.5V to 4.9V
• Overdischarge Detection Voltage Range: 1.6V to 3.9V
• Short-Circuit Detection Delay Time: 10μs to 100ms

Detailed Pin Configuration

1. VDD: Power supply input
2. GND: Ground reference
3. BAT: Battery connection
4. PROTECT: Output indicating battery protection status
5. SDA: I2C serial data input/output
6. SCL: I2C serial clock input
7. TS: Temperature sense input
8. NTC: Negative temperature coefficient thermistor input

Functional Features

• Overcharge protection: Prevents the battery from being charged beyond safe limits.
• Overdischarge protection: Prevents the battery from being discharged below safe limits.
• Short-circuit protection: Detects and protects against short circuits in the battery circuit.
• Temperature monitoring: Monitors the battery temperature to prevent overheating.
• I2C communication interface: Allows for easy integration with microcontrollers and other devices.

Advantages

• Comprehensive battery protection features ensure the longevity and safety of batteries.
• Configurable thresholds and delay times provide flexibility for different battery types and applications.
• Accurate voltage and current monitoring capabilities enable precise control over charging and discharging processes.
• Compact SOP package allows for space-efficient integration into electronic devices.

Disadvantages

• Limited to a maximum supply voltage of 18V, which may not be suitable for certain high-voltage applications.
• Requires additional external components for complete battery protection implementation.

Working Principles

BQ29723DSET operates by continuously monitoring the battery voltage, current, and temperature. It compares these values against preconfigured thresholds to detect potential overcharge, overdischarge, or short-circuit conditions. Upon detection, it triggers the appropriate protection mechanism to safeguard the battery.

Detailed Application Field Plans

BQ29723DSET finds applications in various electronic devices that rely on rechargeable batteries, such as: - Mobile phones - Laptops - Tablets - Power banks - Portable medical devices - Electric vehicles

Detailed and Complete Alternative Models

1. BQ29721DSET: Similar functionality but with a different pin configuration.
2. BQ29722DSET: Enhanced version with additional protection features.
3. BQ29724DSET: Higher voltage rating variant suitable for specific applications.

These alternative models offer similar battery protection capabilities while catering to different pin layouts, enhanced features, or specific voltage requirements.

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