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BQ25798RQMR
+Lista de MateriaisIC CONTROLLED, 1-4-CELL, 5-A BUC
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FabricanteTexas Instruments
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Peça do Fabricante #BQ25798RQMR
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Pacote VQFN-HR-29
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Em Estoque5926
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Especificações
| Atributo | Valor |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| BatteryChemistry | Lithium Ion/Polymer |
| NumberofCells | 1 ~ 4 |
| Current-Charging | Constant |
| ProgrammableFeatures | Current, Timer, Voltage |
| FaultProtection | Over Current, Over Voltage |
| ChargeCurrent-Max | 5A |
| BatteryPackVoltage | 18.8V (Max) |
| Voltage-Supply(Max) | 24V |
| Interface | I²C |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 29-VFQFN |
Visão Geral
Description
This chip features autonomous power source detection and selection, allowing seamless transition between different power inputs. It incorporates advanced charging algorithms to optimize battery life and health. The BQ25798RQMR also supports I2C communication, enabling real-time monitoring and control of charging parameters via an external microcontroller.
Additional features include programmable charging current and voltage, thermal regulation, and safety protections such as over-voltage, over-current, and short-circuit protection. The device is designed for compact and efficient power management in portable and wearable electronics, smart home devices, and other applications requiring reliable and flexible battery charging solutions.
Equivalent
1. Maxim Integrated's MAX77860: A single-inductor, multiple-output (SIMO) buck-boost charger.
2. Microchip's MCP73871: A Li-Ion/Li-Polymer charge management controller.
3. Analog Devices' LTC4162: A multi-chemistry PowerPath manager with on-board charger.
Always check the datasheets for compatibility in terms of features, voltages, and charging currents.
Features
1. Wide Input Voltage Range: Supports 3.6V to 24V, accommodating various power sources.
2. Battery Compatibility: Handles single to four-cell series Li-ion or Li-polymer batteries.
3. High Efficiency: Achieves up to 97% efficiency through advanced power path management.
4. Fast Charging: Supports up to 5A charge current for rapid battery replenishment.
5. Integrated Protection: Offers safety features like overvoltage, overcurrent, and thermal protection.
6. Intelligent Power Allocation: Dynamically manages power distribution between system and battery.
7. I2C Interface: Allows configuration and status monitoring via a standard communication protocol.
8. Compact Package: Available in a space-saving QFN package, ideal for portable applications.
9. USB Compatibility: Complies with USB Type-C and USB PD power standards for flexible connectivity.
10. Low Quiescent Current: Minimizes power consumption to extend battery life during standby.
These features make the BQ25798RQMR suitable for a wide range of applications, including smartphones, tablets, and other portable electronic devices.
Pinout
Key functions of the BQ25798RQMR include:
1. Battery Charging: Supports a variety of battery chemistries and can manage charging for single-cell to multi-cell battery packs.
2. Power Path Management: Allows seamless power switching between battery and external power sources, ensuring a stable power supply to the system.
3. Boost and Buck Operation: Capable of both buck (step-down) and boost (step-up) modes, allowing it to efficiently manage different power levels.
4. Protection Features: Includes safety functions like over-voltage, over-current, and thermal protection to safeguard the device and battery.
5. I2C/SMBus Interface: Allows configuration and monitoring of the charging parameters and status via a digital interface.
This concise pin count and functional overview provide a quick reference for evaluating the BQ25798RQMR in battery management applications.