Overview
The BQ25601RTWR is a highly integrated, I2C controlled, 1-cell battery charger and system power path management device designed by Texas Instruments. This device is optimized for single-cell Li-ion and Li-polymer batteries, offering high efficiency and advanced safety features. It operates as a 3-A switch-mode buck charger with a high-efficiency rate of up to 92% at 2-A from a 5-V input. The BQ25601RTWR is packaged in a 24-pin, 4 mm x 4 mm x 0.75 mm thin WQFN package, making it suitable for compact and power-efficient designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 4.5 to 14 V | V |
| Charge Current | Up to 3 A | A |
| Charge Efficiency | Up to 92% at 2 A from 5 V input | % |
| Switching Frequency | 1.5 MHz | Hz |
| Programmable Charge Voltage | 3.856 to 4.624 V, 32 mV per step | V |
| Operating Ambient Temperature | -40 to 85 °C | °C |
| Package Type | 24-pin WQFN (4 mm x 4 mm x 0.75 mm) | |
| Junction-to-Ambient Thermal Resistance | 35.6 °C/W | °C/W |
Key Features
- High-efficiency, 1.5-MHz synchronous switch-mode buck charger
- I2C serial interface for charging and system settings
- Low impedance power path for optimized switch-mode operation efficiency
- Battery temperature sensing for charge and boost mode
- Thermal regulation and thermal shutdown
- Input UVLO and overvoltage protection
- STAT output for charging status and fault conditions reporting
- INT output for immediate fault notification
- QON pin for BATFET enable and reset control
- Compliance with IEC 62368-1 End Equipment Standard
Applications
- Smartphones
- Mobile phone accessories
- Medical equipment
Q & A
- What is the maximum charge current of the BQ25601RTWR?
The maximum charge current of the BQ25601RTWR is up to 3 A. - What is the switching frequency of the BQ25601RTWR?
The switching frequency of the BQ25601RTWR is 1.5 MHz. - What is the package type of the BQ25601RTWR?
The BQ25601RTWR is packaged in a 24-pin WQFN (4 mm x 4 mm x 0.75 mm). - Does the BQ25601RTWR support I2C communication?
Yes, the BQ25601RTWR supports I2C serial interface for charging and system settings. - What safety features does the BQ25601RTWR include?
The BQ25601RTWR includes features such as thermal regulation, thermal shutdown, input UVLO, overvoltage protection, and battery temperature sensing. - What is the operating ambient temperature range of the BQ25601RTWR?
The operating ambient temperature range of the BQ25601RTWR is -40 to 85 °C. - Is the BQ25601RTWR compliant with any safety standards?
Yes, the BQ25601RTWR is compliant with the IEC 62368-1 End Equipment Standard. - How does the BQ25601RTWR report charging status and fault conditions?
The BQ25601RTWR reports charging status and fault conditions through the STAT output and INT output. - What is the purpose of the QON pin in the BQ25601RTWR?
The QON pin is used for BATFET enable and reset control to exit low power ship mode or to perform a full system reset. - What types of batteries does the BQ25601RTWR support?
The BQ25601RTWR supports single-cell Li-ion and Li-polymer batteries.
