Texas Instruments
Billedet kan være en repræsentation.
Se specifikationer for produktdetaljer.
BQ24090DGQR
Se detaljer DataSheets

BQ24090DGQR

Product Overview

Category

BQ24090DGQR belongs to the category of integrated circuits (ICs).

Use

This product is commonly used for battery charging applications in various electronic devices.

Characteristics

  • Input voltage range: 4.35V to 6.45V
  • Output voltage range: 3.5V to 4.44V
  • Charging current: up to 1.5A
  • Standby current: less than 100µA
  • Thermal regulation and protection
  • Overvoltage protection
  • Short-circuit protection

Package

BQ24090DGQR is available in a small 10-pin VSSOP package.

Essence

The essence of BQ24090DGQR lies in its ability to efficiently charge batteries while providing necessary protection features.

Packaging/Quantity

This product is typically sold in reels, with 2500 units per reel.

Specifications

  • Input voltage: 4.35V to 6.45V
  • Output voltage: 3.5V to 4.44V
  • Charging current: up to 1.5A
  • Standby current: less than 100µA
  • Operating temperature range: -40°C to 85°C
  • Package type: VSSOP-10

Pin Configuration

The pin configuration of BQ24090DGQR is as follows:

```

| | --| EN | --| STAT | --| PG | --| TS | --| VBUS | --| AC | --| GND | --| BAT | --| SYS | |___________| ```

Functional Features

  1. Enable (EN) Pin: This pin controls the enable/disable state of the charger.
  2. Status (STAT) Pin: Provides charging status information.
  3. Power Good (PG) Pin: Indicates when the output voltage is within regulation limits.
  4. Thermal Sense (TS) Pin: Monitors the temperature of the device.
  5. VBUS Pin: Connects to the input power source.
  6. AC Pin: Connects to an external AC adapter.
  7. GND Pin: Ground reference for the IC.
  8. BAT Pin: Connects to the battery being charged.
  9. SYS Pin: Connects to the system load.

Advantages and Disadvantages

Advantages

  • Wide input voltage range allows compatibility with various power sources.
  • High charging current capability enables faster charging times.
  • Comprehensive protection features ensure safe charging.
  • Small package size saves board space.

Disadvantages

  • Limited output voltage range may not be suitable for all applications.
  • Requires additional external components for complete charging circuitry.

Working Principles

BQ24090DGQR operates as a linear charger with thermal regulation. It utilizes a constant current/constant voltage charging algorithm to efficiently charge batteries. The device monitors the battery voltage, current, and temperature to ensure safe and optimal charging. It also provides various protection mechanisms to prevent overvoltage, short-circuits, and thermal issues.

Detailed Application Field Plans

BQ24090DGQR finds applications in a wide range of portable electronic devices, including: - Smartphones - Tablets - Portable media players - Wearable devices - Bluetooth headsets - GPS devices - Digital cameras

Detailed and Complete Alternative Models

  1. BQ24092DGQR: Similar to BQ24090DGQR but with a different pin configuration.
  2. BQ24094DGQR: Offers higher charging current capability (up to 2A).
  3. BQ24095DGQR: Provides additional USB OTG functionality.

These alternative models offer similar functionality and can be considered based on specific application requirements.

Word count: 520 words

Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af BQ24090DGQR i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of BQ24090DGQR:

  1. Question: What is the BQ24090DGQR?
    Answer: The BQ24090DGQR is a highly integrated single-cell Li-Ion battery charger IC.

  2. Question: What is the input voltage range for the BQ24090DGQR?
    Answer: The input voltage range is from 4.35V to 6.5V.

  3. Question: What is the maximum charging current supported by the BQ24090DGQR?
    Answer: The BQ24090DGQR supports a maximum charging current of 1.5A.

  4. Question: Can the BQ24090DGQR charge other types of batteries besides Li-Ion?
    Answer: No, the BQ24090DGQR is specifically designed for single-cell Li-Ion batteries.

  5. Question: Does the BQ24090DGQR have built-in thermal regulation?
    Answer: Yes, the BQ24090DGQR has built-in thermal regulation to prevent overheating during charging.

  6. Question: What is the purpose of the power good (PG) pin on the BQ24090DGQR?
    Answer: The PG pin is used to indicate when the charging process is complete and the battery is fully charged.

  7. Question: Can the BQ24090DGQR operate in a wide temperature range?
    Answer: Yes, the BQ24090DGQR can operate in a temperature range of -40°C to +85°C.

  8. Question: Is the BQ24090DGQR suitable for portable devices?
    Answer: Yes, the BQ24090DGQR is commonly used in portable devices such as smartphones, tablets, and wearable devices.

  9. Question: Does the BQ24090DGQR have overvoltage protection?
    Answer: Yes, the BQ24090DGQR has built-in overvoltage protection to prevent damage to the battery.

  10. Question: Can the BQ24090DGQR be used in a standalone charging application?
    Answer: Yes, the BQ24090DGQR can be used as a standalone charger or integrated into a larger system.

Please note that these answers are general and may vary depending on the specific application and requirements. It is always recommended to refer to the datasheet and consult with the manufacturer for detailed information.