規格
| 屬性 | 價值 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Part Status | Active |
| Battery Chemistry | Lithium Ion/Polymer |
| Number of Cells | 1 |
| Current - Charging | Constant - Programmable |
| Programmable Features | Current |
| Fault Protection | Over Temperature, Over Voltage, Short Circuit |
| Charge Current - Max | 1A |
| Battery Pack Voltage | 4.2V |
| Voltage - Supply (Max) | 6.45V |
| Interface | USB |
| Operating Temperature | 0°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
概述
Description
The BQ24090DGQR is a highly efficient, Li-Ion and Li-Polymer linear battery charger integrated circuit (IC) from Texas Instruments. It is designed for portable applications with limited space and power requirements. The device supports charging from both USB and AC adapter sources and implements a single-cell charging process. It includes features such as automatic power source selection, thermal regulation, and charge status indication. The BQ24090DGQR operates in three main phases: preconditioning, constant current, and constant voltage, ensuring efficient and safe charging.
This IC offers a programmable charge current through an external resistor, allowing flexibility in various applications. It also features battery detection, undervoltage lockout, and a power good status indicator. The compact QFN package helps in minimizing the overall footprint of the device, making it suitable for handheld and wearable devices. Additionally, the BQ24090DGQR incorporates safety features like thermal shutdown and protection against over-voltage. Overall, it provides an effective solution for managing battery charging with minimal external components.
This IC offers a programmable charge current through an external resistor, allowing flexibility in various applications. It also features battery detection, undervoltage lockout, and a power good status indicator. The compact QFN package helps in minimizing the overall footprint of the device, making it suitable for handheld and wearable devices. Additionally, the BQ24090DGQR incorporates safety features like thermal shutdown and protection against over-voltage. Overall, it provides an effective solution for managing battery charging with minimal external components.
Equivalent
The BQ24090DGQR is a single-cell Li-Ion and Li-Polymer battery charger IC from Texas Instruments. Equivalent products include the MCP73831 from Microchip, MAX1811 from Maxim Integrated, and LP29300 from Texas Instruments as well. These alternatives have similar functionalities but may differ slightly in specifications, so it's advisable to check the datasheets to ensure compatibility with your specific application.
Features
The BQ24090DGQR is a highly integrated Li-Ion and Li-Polymer linear battery charger from Texas Instruments. It is designed for portable applications and includes several key features:
1. Input Voltage Range: Operates with an input voltage range from 4.35V to 6.5V, making it compatible with USB power specifications.
2. Charging Current: Capable of providing a programmable charging current up to 1A, allowing flexibility for various battery capacities.
3. Single-Cell Charging: Specifically tailored for single-cell lithium batteries, ensuring optimal charging efficiency and safety.
4. Power Path Management: Supports simultaneous operation of the system while charging the battery, ensuring uninterrupted power to the device.
5. Safety Features: Includes thermal regulation, undervoltage lockout, and protection against over-voltage, over-current, and short-circuit conditions.
6. Status Indicators: Provides status outputs to indicate charging state and fault conditions, aiding in system diagnostics.
7. Compact Package: Available in a 10-pin VSON package, facilitating space-saving designs in compact electronic devices.
These features make the BQ24090DGQR suitable for applications such as smartphones, tablets, and other portable electronic devices.
1. Input Voltage Range: Operates with an input voltage range from 4.35V to 6.5V, making it compatible with USB power specifications.
2. Charging Current: Capable of providing a programmable charging current up to 1A, allowing flexibility for various battery capacities.
3. Single-Cell Charging: Specifically tailored for single-cell lithium batteries, ensuring optimal charging efficiency and safety.
4. Power Path Management: Supports simultaneous operation of the system while charging the battery, ensuring uninterrupted power to the device.
5. Safety Features: Includes thermal regulation, undervoltage lockout, and protection against over-voltage, over-current, and short-circuit conditions.
6. Status Indicators: Provides status outputs to indicate charging state and fault conditions, aiding in system diagnostics.
7. Compact Package: Available in a 10-pin VSON package, facilitating space-saving designs in compact electronic devices.
These features make the BQ24090DGQR suitable for applications such as smartphones, tablets, and other portable electronic devices.
Pinout
The BQ24090DGQR is a single-cell Li-Ion battery charger integrated circuit (IC) manufactured by Texas Instruments. It is designed for portable applications and supports USB and AC adapter power sources. The IC is housed in a 10-pin MSOP (Micro Small Outline Package) with the following pin functions:
1. IN: Input power supply.
2. OUT: Regulated output voltage to the battery.
3. BAT: Connection to the battery.
4. PG: Power Good indicator; active low output indicating valid input voltage.
5. CE: Charge Enable; active low input to enable charging.
6. ISET: Current set; sets the charge current.
7. TS: Temperature Sense; monitors battery temperature.
8. TERM: Termination current set; sets minimum current for charge termination.
9. STAT: Status indicator; open-drain output to indicate charging status.
10. GND: Ground connection.
The BQ24090DGQR provides features like pre-charge conditioning, constant current/voltage regulation, and charge termination. It ensures battery protection with over-voltage protection, thermal regulation, and a battery temperature monitoring feature.
1. IN: Input power supply.
2. OUT: Regulated output voltage to the battery.
3. BAT: Connection to the battery.
4. PG: Power Good indicator; active low output indicating valid input voltage.
5. CE: Charge Enable; active low input to enable charging.
6. ISET: Current set; sets the charge current.
7. TS: Temperature Sense; monitors battery temperature.
8. TERM: Termination current set; sets minimum current for charge termination.
9. STAT: Status indicator; open-drain output to indicate charging status.
10. GND: Ground connection.
The BQ24090DGQR provides features like pre-charge conditioning, constant current/voltage regulation, and charge termination. It ensures battery protection with over-voltage protection, thermal regulation, and a battery temperature monitoring feature.
Manufacturer
The BQ24090DGQR is manufactured by Texas Instruments. Texas Instruments, commonly abbreviated as TI, is an American technology company that designs and manufactures semiconductors and various integrated circuits. They are a leading company in the semiconductor industry, supplying components for a wide range of electronic products and systems. Texas Instruments specializes in analog chips and embedded processors, which are crucial in powering consumer electronics, industrial applications, automotive systems, and communication devices. Established in 1930, TI has a significant global presence and is recognized for its innovation and contributions to the advancement of electronic technologies.
Application
The BQ24090DGQR is a single-cell Li-Ion and Li-Polymer battery charger IC. Its application areas include:
1. Portable Electronics: Ideal for devices like smartphones, tablets, and portable media players.
2. Wearable Devices: Used in smartwatches and fitness trackers due to its compact size and efficiency.
3. IoT Devices: Suitable for low-power Internet of Things devices requiring efficient battery management.
4. Medical Devices: Used in portable medical equipment due to its reliability and safe charging features.
5. Backup Systems: Ideal for uninterruptible power supply (UPS) systems and energy storage solutions.
These applications benefit from its integrated power path management, thermal regulation, and charge status indication features.
1. Portable Electronics: Ideal for devices like smartphones, tablets, and portable media players.
2. Wearable Devices: Used in smartwatches and fitness trackers due to its compact size and efficiency.
3. IoT Devices: Suitable for low-power Internet of Things devices requiring efficient battery management.
4. Medical Devices: Used in portable medical equipment due to its reliability and safe charging features.
5. Backup Systems: Ideal for uninterruptible power supply (UPS) systems and energy storage solutions.
These applications benefit from its integrated power path management, thermal regulation, and charge status indication features.
Package
The BQ24090DGQR is a Li-Ion and Li-Polymer linear battery charger IC from Texas Instruments. It comes in a 10-pin VSSOP package type, also known as MSOP (Micro Small Outline Package), specifically designated as a DGQ package.