Overview
The BQ25570RGRT is an ultra-low-power boost converter with integrated battery management, designed and manufactured by Texas Instruments. This product is categorized as a power management IC, specifically optimized for energy harvesting applications. It targets developers and engineers working on IoT devices, wearable electronics, and other ultra-low-power systems that require efficient energy harvesting and storage. The BQ25570RGRT stands out for its ability to efficiently extract and manage power from low-voltage sources such as solar cells, thermoelectric generators, and vibration harvesters, making it a competitive choice for energy-conscious designs.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage Range | 0.1 to 5.5 | V | Supports ultra-low-power sources |
| Output Voltage Range | 1.8 to 5.25 | V | Programmable via external resistors |
| Quiescent Current | 488 | nA | Ultra-low quiescent current |
| Maximum Charging Current | 300 | mA | Configurable |
| Operating Temperature Range | -40 to 85 | °C | Suitable for harsh environments |
| Package | VQFN-20 | - | Compact form factor |
| Efficiency | Up to 90 | % | High efficiency for energy harvesting |
| Integrated Features | MPPT, Battery Management | - | Maximizes power extraction |
Key Features
- Ultra-Low Power Operation: Designed for energy harvesting applications with minimal power input.
- Integrated Maximum Power Point Tracking (MPPT): Optimizes power extraction from energy sources.
- Programmable Output Voltage: Flexible configuration for various applications.
- Battery Management: Protects and manages rechargeable batteries efficiently.
- Compact Form Factor: VQFN-20 package suitable for space-constrained designs.
Applications
The BQ25570RGRT is widely used in applications requiring energy harvesting and efficient power management. Key application areas include:
- IoT Devices: Powers sensors and communication modules in remote or battery-less IoT systems.
- Wearable Electronics: Enables long-lasting operation in health monitors and fitness trackers.
- Environmental Monitoring: Supports sensors in remote locations powered by solar or thermal energy.
- Industrial Automation: Provides reliable power for wireless sensors in industrial settings.
- Consumer Electronics: Enhances battery life in portable devices.
Q & A
1. What is the input voltage range of the BQ25570RGRT?
The input voltage range is 0.1V to 5.5V, making it suitable for ultra-low-power energy sources.
2. Does the BQ25570RGRT support battery charging?
Yes, it includes integrated battery management and supports charging currents up to 300mA.
3. What is the efficiency of the BQ25570RGRT?
The efficiency can reach up to 90%, ensuring optimal power conversion.
4. Can the output voltage be adjusted?
Yes, the output voltage is programmable from 1.8V to 5.25V using external resistors.
5. What is the operating temperature range?
It operates reliably from -40°C to 85°C, making it suitable for harsh environments.
6. Does it include MPPT functionality?
Yes, it features integrated Maximum Power Point Tracking to maximize power extraction.
7. What package does the BQ25570RGRT come in?
It is available in a compact VQFN-20 package.
8. Is the BQ25570RGRT suitable for solar energy harvesting?
Yes, it is optimized for solar cells and other low-voltage energy sources.
9. What is the quiescent current of the BQ25570RGRT?
The quiescent current is as low as 488nA, ensuring minimal power loss.
10. Can it be used in wearable devices?
Yes, its ultra-low power operation and compact size make it ideal for wearable electronics.
