BQ2057PDGK

Product Overview

Category

BQ2057PDGK belongs to the category of battery charge management integrated circuits.

Use

This product is primarily used for managing and controlling the charging process of rechargeable batteries.

Characteristics

• Efficient charging algorithm
• Wide input voltage range
• High accuracy in voltage and current regulation
• Low power consumption
• Compact package size

Package

BQ2057PDGK is available in a small form factor package, which ensures easy integration into various electronic devices.

Essence

The essence of BQ2057PDGK lies in its ability to provide reliable and efficient charging solutions for rechargeable batteries.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 4.5V - 28V
• Charging Voltage Range: 3.6V - 24V
• Charging Current Range: 100mA - 2A
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. VCC: Power supply input
2. GND: Ground reference
3. BAT: Battery connection point
4. PROG: Programming pin for setting charging parameters
5. STAT: Status output pin
6. TS: Temperature sense input
7. ISET: Charging current setting pin
8. PGND: Power ground reference

Functional Features

• Constant current and constant voltage charging modes
• Overvoltage and overcurrent protection
• Temperature monitoring and thermal shutdown
• Charge termination based on voltage and current thresholds
• LED indication for charging status

Advantages and Disadvantages

Advantages

• Highly accurate charging algorithm ensures optimal battery performance.
• Wide input voltage range allows compatibility with various power sources.
• Low power consumption minimizes energy wastage.
• Compact package size enables easy integration into space-constrained designs.

Disadvantages

• Limited charging current range may not be suitable for high-capacity batteries.
• Lack of advanced communication interfaces limits compatibility with certain applications.

Working Principles

BQ2057PDGK operates by regulating the charging process of rechargeable batteries. It employs a constant current and constant voltage charging algorithm to ensure efficient and safe charging. The device continuously monitors the battery voltage, current, and temperature to determine the appropriate charging parameters. Once the battery reaches the desired voltage and current levels, the charging process is terminated to prevent overcharging.

Detailed Application Field Plans

BQ2057PDGK finds extensive application in various electronic devices that utilize rechargeable batteries. Some common application fields include: - Portable consumer electronics (e.g., smartphones, tablets) - Wearable devices (e.g., smartwatches, fitness trackers) - Medical devices (e.g., portable medical equipment) - Industrial equipment (e.g., handheld tools, measurement instruments)

Detailed and Complete Alternative Models

1. BQ2057T: Similar functionality with minor variations in specifications.
2. BQ2057R: Enhanced features such as additional communication interfaces.
3. BQ2057X: Extended input voltage range for specific applications.

Note: This list is not exhaustive, and there are other alternative models available in the market.

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