BQ25798RQMR

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BQ25798RQMR

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IC CONTROLLED, 1-4-CELL, 5-A BUC

  • FabricanteTexas Instruments

  • Peça do Fabricante #BQ25798RQMR

  • Pacote VQFN-HR-29

  • 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

The BQ25798RQMR is a highly integrated buck-boost battery charge controller developed by Texas Instruments. It is designed to efficiently manage the charging of a wide range of battery chemistries, including lithium-ion and lithium-polymer, with support for multi-cell configurations. The device operates over a wide input voltage range, making it suitable for various power sources like USB, adapters, or solar panels.
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

The BQ25798RQMR is a battery charge management IC by Texas Instruments. Equivalent products from other manufacturers might include:
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

The BQ25798RQMR is a highly integrated battery management IC designed for efficient and versatile charging solutions. Key features include:
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

The BQ25798RQMR is a battery charge management IC from Texas Instruments. It is designed for use in applications that require efficient battery charging and power path management. The BQ25798RQMR comes in a 30-pin VQFN package.
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.

Manufacturer

The BQ25798RQMR is manufactured by Texas Instruments (TI). TI is a global semiconductor design and manufacturing company based in Dallas, Texas. It specializes in the production of a wide range of analog and embedded processing chips, which are used in numerous industries, including automotive, industrial, electronics, and communications. Texas Instruments is renowned for its innovation in semiconductor technologies, contributing significantly to advancements in electronics and providing solutions for power management, data converters, amplifiers, and more.

Application

The BQ25798RQMR is a highly integrated battery management IC designed for efficient power management in various applications. Its primary application areas include portable electronics, such as smartphones, tablets, laptops, and other battery-operated devices. It is also suitable for use in power banks, smart home devices, medical devices, and any electronic systems requiring efficient charging and battery protection. The IC supports USB-C charging and is ideal for applications demanding fast charging capabilities. Additionally, its advanced features, such as autonomous power source selection and comprehensive battery safety protection, make it well-suited for modern, feature-rich consumer electronics and industrial devices.

Package

The BQ25798RQMR is a battery charger IC from Texas Instruments, typically provided in a VQFN (Very Thin Quad Flat No-Lead) package. This package type is compact, facilitating efficient thermal performance and integration in space-constrained applications.

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