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BQ25708RSNT
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BQ25708RSNT

Product Overview

Category

BQ25708RSNT belongs to the category of power management integrated circuits (PMICs).

Use

This PMIC is designed for use in various portable electronic devices, such as smartphones, tablets, and laptops.

Characteristics

  • High efficiency power conversion
  • Integrated battery charger
  • Flexible input source selection
  • Advanced thermal regulation
  • Comprehensive protection features

Package

BQ25708RSNT is available in a small outline no-lead (SON) package.

Essence

The essence of BQ25708RSNT lies in its ability to efficiently manage power conversion and charging processes in portable electronic devices.

Packaging/Quantity

This PMIC is typically sold in reels, with each reel containing a specific quantity of BQ25708RSNT units.

Specifications

  • Input voltage range: 3.5V - 24V
  • Output voltage range: 3.5V - 24V
  • Charging current range: up to 8A
  • Efficiency: up to 98%
  • Operating temperature range: -40°C to 85°C

Detailed Pin Configuration

  1. VIN: Input voltage pin
  2. VBUS: USB input voltage pin
  3. BAT: Battery voltage pin
  4. SYS: System voltage output pin
  5. EN: Enable pin
  6. PG: Power good indicator pin
  7. TS: Thermal shutdown pin
  8. ISET: Charging current setting pin
  9. STAT: Status indicator pin
  10. INT: Interrupt pin
  11. SDA: I2C data pin
  12. SCL: I2C clock pin

Functional Features

  • Input source selection: BQ25708RSNT can intelligently switch between different power sources, such as USB, AC adapter, or external battery.
  • Battery charging: It provides a comprehensive charging solution, supporting various battery chemistries and implementing advanced charging algorithms.
  • Thermal regulation: The PMIC incorporates thermal regulation mechanisms to prevent overheating and ensure safe operation.
  • Protection features: BQ25708RSNT offers multiple protection features, including overvoltage protection, overcurrent protection, and short-circuit protection.

Advantages and Disadvantages

Advantages

  • High efficiency power conversion reduces energy waste.
  • Flexible input source selection allows for versatile usage scenarios.
  • Comprehensive protection features enhance device safety.
  • Advanced thermal regulation prevents overheating.

Disadvantages

  • Limited compatibility with certain battery chemistries.
  • Relatively high cost compared to some alternative models.

Working Principles

BQ25708RSNT operates by efficiently converting the input voltage to the desired output voltage while managing the charging process of the connected battery. It intelligently selects the appropriate power source and implements charging algorithms based on the battery chemistry. The PMIC also monitors temperature and implements thermal regulation to prevent excessive heat generation.

Detailed Application Field Plans

BQ25708RSNT finds application in a wide range of portable electronic devices, including smartphones, tablets, laptops, and portable gaming consoles. Its ability to handle different power sources and support various battery chemistries makes it suitable for diverse usage scenarios.

Detailed and Complete Alternative Models

  1. BQ25892RSNT: Similar functionality with additional USB Type-C support.
  2. BQ25601RSNT: Lower cost alternative with slightly reduced features.
  3. BQ24296RSNT: Compact form factor with integrated USB OTG support.

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

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技術ソリューションにおける BQ25708RSNT の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of BQ25708RSNT in technical solutions:

  1. Q: What is the BQ25708RSNT? A: The BQ25708RSNT is a highly integrated battery charger and power path management device designed for single-cell Li-Ion or Li-Polymer battery applications.

  2. Q: What are the key features of the BQ25708RSNT? A: The key features include high-efficiency charging, dynamic power management, input current optimization, system power monitoring, and various protection mechanisms.

  3. Q: What is the maximum charging current supported by the BQ25708RSNT? A: The BQ25708RSNT supports a maximum charging current of up to 8A.

  4. Q: Can the BQ25708RSNT charge multiple devices simultaneously? A: Yes, the BQ25708RSNT supports multi-device charging through its power path management feature.

  5. Q: Does the BQ25708RSNT support USB Type-C™ Power Delivery (PD)? A: Yes, the BQ25708RSNT is compatible with USB Type-C PD standards and can negotiate power profiles with PD sources.

  6. Q: How does the BQ25708RSNT optimize input current for efficient charging? A: The BQ25708RSNT uses an input current optimizer to dynamically adjust the charging current based on the available input power, maximizing charging efficiency.

  7. Q: What protections does the BQ25708RSNT provide for battery safety? A: The BQ25708RSNT offers protection against overvoltage, overcurrent, overtemperature, short circuit, and reverse discharge to ensure safe battery operation.

  8. Q: Can the BQ25708RSNT be used in portable electronic devices? A: Yes, the BQ25708RSNT is suitable for a wide range of portable electronic devices such as smartphones, tablets, laptops, and power banks.

  9. Q: Does the BQ25708RSNT support battery authentication? A: Yes, the BQ25708RSNT supports battery authentication to ensure compatibility and safety during charging.

  10. Q: Are there any evaluation modules or reference designs available for the BQ25708RSNT? A: Yes, Texas Instruments provides evaluation modules and reference designs that can help developers quickly prototype and integrate the BQ25708RSNT into their applications.

Please note that these answers are general and may vary depending on specific application requirements and implementation details.