BQ24079RGTR

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BQ24079RGTR

+Nomenclature

IC BATT CHG LI-ION 1CELL 16QFN

  • FabricantTexas Instruments

  • Pièce fabricant #BQ24079RGTR

  • En stock6329

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Spécifications

Attribut Valeur
Part Status Active
Base Product Number BQ24079
Battery Chemistry Lithium Ion
Number of Cells 1
Current - Charging Constant - Programmable
Programmable Features Current, Timer
Fault Protection Over Temperature, Over Voltage, Reverse Current, Short Circuit
Charge Current - Max 1.5A
Battery Pack Voltage 4.1V
Voltage - Supply (Max) 6.4V
Interface USB
Operating Temperature -40°C ~ 125°C (TJ)
Mounting Type Surface Mount
Package 16-VFQFN Exposed Pad
Supplier Device Package 16-VQFN (3x3)
Packaging Cut Tape (CT), Tape & Reel (TR)

Présentation

Description

The BQ24079RGTR is an integrated circuit from Texas Instruments, designed for efficient power management in portable applications. It is a linear battery charger with an integrated power path management feature, suitable for single-cell Li-Ion or Li-Polymer batteries. The device operates with USB and AC adapter inputs, making it versatile for various charging environments.
Key features include a dynamic power path management (DPPM) function, which ensures that the system can draw power directly from the input source even while charging the battery. This setup helps in providing immediate power to the system and can extend battery life by reducing unnecessary charging cycles.
The BQ24079RGTR supports a wide input voltage range and offers adjustable current settings, enabling optimal charging performance for different battery capacities. Safety features, like thermal regulation, over-voltage protection, and battery temperature monitoring, ensure reliable and safe operation. Its compact package makes it suitable for space-constrained applications, such as smartphones, MP3 players, and other portable electronics.

Equivalent

The BQ24079RGTR is a single-cell Li-Ion and Li-Polymer linear battery charger IC. Equivalent products include:
1. MCP73831 from Microchip Technology – A linear charge management controller.
2. MAX1811 from Maxim Integrated – A single-cell lithium-ion battery charger.
3. TP4056 from NanJing Top Power ASIC Corp – A linear battery charging management IC.
4. LTC4054 from Analog Devices – A standalone linear charger for single-cell lithium-ion batteries.
These products offer similar functionalities tailored for single-cell battery charging applications.

Features

The BQ24079RGTR is a linear battery charger IC from Texas Instruments, designed for single-cell Li-Ion and Li-Polymer batteries. It features dynamic power path management (DPPM) to ensure efficient power distribution between the battery and the system load. This IC supports a wide input voltage range of 4.35V to 6.5V and offers a programmable charge current, typically up to 1.5A.
Key features include:
1. Dynamic Power Path Management (DPPM): Allows simultaneous battery charging and system power supply, prioritizing system loads.
2. USB-friendly: Supports charging from USB ports with input current regulation.
3. Thermal Regulation: Protects against overheating by reducing charge current.
4. Single-cell Li-Ion/Polymer Support: Designed specifically for these battery types.
5. Safety Features: Includes battery temperature monitoring, over-voltage protection, and a safety timer.
6. Power Good (PG) Output: Signals valid power input.
7. Small Package: Available in a 10-pin VSON package, making it suitable for space-constrained applications.
These features make the BQ24079RGTR ideal for portable devices, medical equipment, and other battery-powered applications.

Pinout

The BQ24079RGTR is a single-cell Li-Ion and Li-Pol battery charger with integrated power path management, designed by Texas Instruments. It typically comes in a 16-pin QFN package.
Pin Count: 16 pins
Key Functions:
1. VBUS: Input for the USB or AC adapter supply.
2. BAT: Connection to the battery.
3. OUT: System output voltage.
4. CE: Charge enable pin; active low to enable charging.
5. EN1, EN2: Enable pins used for setting USB charge current limits.
6. ISET: Sets the fast-charge current.
7. PG: Power good indicator.
8. STAT1, STAT2: Status pins indicating charging states.
9. TMR: Timer pin for setting safety timer duration.
10. TS: Temperature sense input for battery pack thermistor.
11. GND: Ground connection.
12. PRETERM: Pre-charge and termination current set pin.
13. ILIM: Input current limit set.
The BQ24079RGTR is designed to manage the power supply for portable devices, ensuring efficient battery charging and system regulation.

Manufacturer

The BQ24079RGTR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronic components and integrated circuits. TI is known for its innovation and leadership in the field of analog and embedded processing, which includes power management chips, microcontrollers, processors, and sensor technologies, among others. The company serves various industries, including consumer electronics, automotive, industrial, and communications equipment.

Application

The BQ24079RGTR is a Li-ion battery charger IC designed for efficient power management and battery charging applications. Key application areas include:
1. Portable Electronics: Used in devices such as smartphones, tablets, and portable media players for efficient battery charging and management.
2. Wearable Devices: Ideal for devices like smartwatches and fitness trackers due to its compact size and efficient charging capabilities.
3. IoT Devices: Supports low-power Internet of Things devices, providing reliable power management.
4. Medical Devices: Applied in portable medical equipment needing reliable battery charging solutions.
5. Power Banks: Utilized in power banks for efficient charging and discharging of stored energy.
These applications benefit from the IC's thermal regulation, precise voltage regulation, and high charging current capabilities.

Package

The BQ24079RGTR is a battery management IC from Texas Instruments, and it comes in a VQFN (Very Thin Quad Flat No-Lead) package with 16 pins. The specific package dimensions are 3mm x 3mm, making it suitable for compact applications.