Overview
The BQ25731RSNR is a highly integrated switch-mode battery charge management and system power path management device produced by Texas Instruments. This product is designed for single-cell Li-ion or Li-polymer batteries, offering a compact and efficient solution for portable devices. It is particularly suited for applications in consumer electronics, industrial equipment, and medical devices. The BQ25731RSNR stands out for its high efficiency, advanced power path management, and robust protection features, making it a competitive choice in the market.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage Range | 3.9 to 24 | V | |
| Charge Voltage Range | 3.5 to 4.65 | V | |
| Max Charge Current | 3 | A | |
| Battery Chemistry | Li-ion, Li-polymer | Single-cell | |
| Operating Temperature | -40 to 85 | °C | |
| Package | QFN-30 | 4x4 mm | |
| Efficiency | Up to 96 | % | |
| Switching Frequency | 300 to 1200 | kHz | Programmable |
| Protection Features | Overvoltage, Overcurrent, Overtemperature | ||
| Interface | I2C |
Key Features
- Advanced power path management for optimal system performance.
- High efficiency up to 96%, reducing power loss and heat generation.
- Wide input voltage range (3.9V to 24V) for versatile applications.
- Programmable switching frequency (300kHz to 1200kHz) for flexible design.
- Comprehensive protection features including overvoltage, overcurrent, and overtemperature.
- Compact QFN-30 package (4x4 mm) for space-constrained designs.
Applications
The BQ25731RSNR is ideal for a variety of applications, including:
- Consumer Electronics: Smartphones, tablets, and portable gaming devices benefit from its efficient charging and compact size.
- Industrial Equipment: Handheld scanners, portable test instruments, and other industrial devices leverage its robust protection and power management.
- Medical Devices: Portable medical monitors and diagnostic equipment utilize its reliable and efficient charging capabilities.
Q & A
1. What is the input voltage range of the BQ25731RSNR?
The input voltage range is 3.9V to 24V.
2. What is the maximum charge current supported?
The maximum charge current is 3A.
3. What battery chemistries are supported?
It supports single-cell Li-ion and Li-polymer batteries.
4. What is the operating temperature range?
The operating temperature range is -40°C to 85°C.
5. What package does the BQ25731RSNR come in?
It comes in a QFN-30 package measuring 4x4 mm.
6. What is the efficiency of the BQ25731RSNR?
The efficiency can reach up to 96%.
7. Is the switching frequency programmable?
Yes, the switching frequency is programmable from 300kHz to 1200kHz.
8. What protection features are included?
It includes overvoltage, overcurrent, and overtemperature protection.
9. What interface does the BQ25731RSNR use?
It uses an I2C interface for communication.
10. What are the typical applications of the BQ25731RSNR?
Typical applications include consumer electronics, industrial equipment, and medical devices.
