사양
| 속성 | 가치 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Battery Chemistry | Lithium Ion/Polymer |
| Number of Cells | 1 ~ 3 |
| Current - Charging | Constant - Programmable |
| Programmable Features | Current |
| Fault Protection | Over Current, Over Temperature, Over Voltage |
| Charge Current - Max | 4A |
| Battery Pack Voltage | 2.1V |
| Voltage - Supply (Max) | 17V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
개요
Description
The BQ24171RGYR is a highly integrated lithium-ion battery charger, commonly used in portable electronic devices. It is designed to efficiently manage the charging of single-cell lithium-ion or lithium-polymer batteries. The device operates as a switch-mode charger with a built-in power MOSFET for high-efficiency power conversion, allowing for rapid charging while minimizing power loss. It features a wide input voltage range and supports various charging algorithms, including constant current and constant voltage phases, ensuring safe and optimized charging cycles.
The charger includes safety features such as over-voltage, over-current, and thermal protection, ensuring reliable operation under different conditions. The BQ24171RGYR also offers features like battery detection, pre-charge, and termination, which enhance battery life and performance. Its compact package and minimal external component requirements make it suitable for space-constrained applications. The BQ24171RGYR is particularly useful for battery-powered devices where efficiency, reliability, and safety are critical, such as smartphones, portable media players, and other handheld electronics.
The charger includes safety features such as over-voltage, over-current, and thermal protection, ensuring reliable operation under different conditions. The BQ24171RGYR also offers features like battery detection, pre-charge, and termination, which enhance battery life and performance. Its compact package and minimal external component requirements make it suitable for space-constrained applications. The BQ24171RGYR is particularly useful for battery-powered devices where efficiency, reliability, and safety are critical, such as smartphones, portable media players, and other handheld electronics.
Equivalent
The BQ24171RGYR is a battery charge management IC designed by Texas Instruments. Equivalent products from other manufacturers that offer similar functionality include the MCP73871 from Microchip, LTC4006 from Analog Devices, and MAX8900 from Maxim Integrated. These alternatives provide similar features such as Li-ion battery charging, power path management, and programmable charge parameters, although specific capabilities may vary. Always compare datasheets to ensure compatibility with your specific application requirements.
Features
The BQ24171RGYR is a switch-mode battery charger IC designed for portable applications. It supports single-cell Li-ion and Li-polymer batteries. Key features include:
1. Adaptive Charge Management: Offers pre-charge, fast-charge, and termination functions.
2. High Efficiency: Utilizes synchronous buck topology for high efficiency charging.
3. Power Path Management: Simultaneously powers the system and charges the battery.
4. Input Voltage: Operates from a wide input range, typically between 4.5V to 17V.
5. Battery Regulation: Provides accurate voltage and current regulation for safe charging.
6. Temperature Monitoring: Integrates battery temperature sensing for safety.
7. Protection Features: Includes over-voltage, over-current, and thermal protection mechanisms.
8. Host Control: Supports I²C interface for communication with a host processor, allowing configuration and monitoring.
9. Compact Package: Available in a 24-pin VQFN package, suitable for space-constrained designs.
Overall, the BQ24171RGYR is designed to efficiently manage battery charging while maximizing battery life and ensuring safety.
1. Adaptive Charge Management: Offers pre-charge, fast-charge, and termination functions.
2. High Efficiency: Utilizes synchronous buck topology for high efficiency charging.
3. Power Path Management: Simultaneously powers the system and charges the battery.
4. Input Voltage: Operates from a wide input range, typically between 4.5V to 17V.
5. Battery Regulation: Provides accurate voltage and current regulation for safe charging.
6. Temperature Monitoring: Integrates battery temperature sensing for safety.
7. Protection Features: Includes over-voltage, over-current, and thermal protection mechanisms.
8. Host Control: Supports I²C interface for communication with a host processor, allowing configuration and monitoring.
9. Compact Package: Available in a 24-pin VQFN package, suitable for space-constrained designs.
Overall, the BQ24171RGYR is designed to efficiently manage battery charging while maximizing battery life and ensuring safety.
Pinout
The BQ24171RGYR is a battery charger IC manufactured by Texas Instruments. It is typically used for power management in portable devices. Specifically, it is a single-cell Li-Ion and Li-Polymer charger with an integrated power FET and a high-accuracy voltage regulation.
The BQ24171 comes in a 24-pin VQFN package. The pin functions include:
- VBUS: Input from the adapter.
- SW: Connection for inductor.
- BAT: Battery connection.
- PGND: Power ground.
- AGND: Analog ground.
- TS: Battery temperature sensing.
- OTG: Boost mode enable.
- STAT: Charge status indication.
- CE: Charge enable.
- ISET: Charge current set.
- ILIM: Input current limit set.
- SYS: System output.
- REGN: Internal regulator output.
- SNS: Sense resistor connection for current measurement.
- DPMDET: Input voltage detection.
The device efficiently manages the charging process and provides features like load management, thermal protection, and status indication. It supports up to 4.5 A fast charge current and is suitable for a variety of battery-powered applications.
The BQ24171 comes in a 24-pin VQFN package. The pin functions include:
- VBUS: Input from the adapter.
- SW: Connection for inductor.
- BAT: Battery connection.
- PGND: Power ground.
- AGND: Analog ground.
- TS: Battery temperature sensing.
- OTG: Boost mode enable.
- STAT: Charge status indication.
- CE: Charge enable.
- ISET: Charge current set.
- ILIM: Input current limit set.
- SYS: System output.
- REGN: Internal regulator output.
- SNS: Sense resistor connection for current measurement.
- DPMDET: Input voltage detection.
The device efficiently manages the charging process and provides features like load management, thermal protection, and status indication. It supports up to 4.5 A fast charge current and is suitable for a variety of battery-powered applications.
Manufacturer
The BQ24171RGYR is manufactured by Texas Instruments. Texas Instruments, often abbreviated as TI, is a global technology company that designs and manufactures semiconductors and various integrated circuits, which are used in electronic devices across numerous industries. The company is well-known for its innovation in the design and production of analog and embedded processing chips. Founded in 1930 and headquartered in Dallas, Texas, TI has become one of the largest semiconductor companies in the world. Their products are integral to a wide array of applications, including industrial, automotive, personal electronics, communications equipment, and enterprise systems. TI is recognized for its significant contributions to advancements in technology and engineering.
Application
The BQ24171RGYR is a battery charger IC primarily used in portable devices. Its application areas include:
1. Smartphones and Tablets: For efficient charging and battery management.
2. Wearable Devices: Ensures compact design with reliable charging.
3. Portable Medical Instruments: Provides consistent power management.
4. Bluetooth Devices: Enhances battery life and charging efficiency.
5. Digital Cameras: Offers reliable charging solutions for portability.
6. Power Banks: Manages charging and discharging operations.
7. Smart Home Devices: Ensures efficient power usage and recharging.
These applications benefit from its capabilities in providing efficient power management and charging solutions.
1. Smartphones and Tablets: For efficient charging and battery management.
2. Wearable Devices: Ensures compact design with reliable charging.
3. Portable Medical Instruments: Provides consistent power management.
4. Bluetooth Devices: Enhances battery life and charging efficiency.
5. Digital Cameras: Offers reliable charging solutions for portability.
6. Power Banks: Manages charging and discharging operations.
7. Smart Home Devices: Ensures efficient power usage and recharging.
These applications benefit from its capabilities in providing efficient power management and charging solutions.
Package
The BQ24171RGYR is a single-cell Li-Ion battery charger IC from Texas Instruments. It comes in a VQFN (Very Thin Quad Flat No-Lead) package, specifically in the RGY package type, which has 24 pins and a 4mm x 4mm footprint.