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BQ25505RGRR - English Editing Encyclopedia Entry
Product Overview
Category
The BQ25505RGRR belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.
Use
This IC is primarily used for energy harvesting applications, where it enables the efficient extraction and storage of energy from ambient sources such as solar panels, thermoelectric generators, or piezoelectric elements.
Characteristics
- Low-power design: The BQ25505RGRR is designed to operate with ultra-low power consumption, making it suitable for energy-constrained applications.
- Energy harvesting optimization: It incorporates features that maximize the energy extraction and conversion efficiency from ambient sources.
- Integrated charging and storage: The IC integrates a battery charger and energy storage capability, allowing for efficient energy management.
- Flexible package: The BQ25505RGRR is available in a small form factor package, enabling its use in compact devices.
Package and Quantity
The BQ25505RGRR is packaged in a 16-pin VQFN (Very Thin Quad Flat No-Lead) package. It is typically supplied in reels, with a quantity of 2500 units per reel.
Specifications
- Input voltage range: 80mV to 5.5V
- Maximum output voltage: 5.3V
- Maximum output current: 80mA
- Quiescent current: 330nA
- Battery charge voltage: Programmable up to 4.2V
- Operating temperature range: -40°C to +85°C
Pin Configuration
The BQ25505RGRR has a total of 16 pins, each serving a specific function. Here is the detailed pin configuration:
- VIN: Input voltage pin
- GND: Ground reference pin
- EN: Enable pin for controlling the IC's operation
- VBAT: Battery voltage output pin
- VSTOR: Energy storage voltage output pin
- BATFET: Battery FET control pin
- PG: Power good indicator pin
- INT: Interrupt output pin
- SDA: I2C serial data input/output pin
- SCL: I2C serial clock input pin
- TS: Temperature sense input pin
- TSP: Temperature sense positive supply pin
- VSS: Negative supply pin
- VDD: Positive supply pin
- NC: No connection pin
- NC: No connection pin
Functional Features
- Ultra-low power startup: The BQ25505RGRR can start up and operate with extremely low input voltages, enabling efficient energy harvesting from weak ambient sources.
- Maximum power point tracking (MPPT): It incorporates MPPT algorithms to optimize the energy extraction from the input source, ensuring maximum power transfer.
- Programmable charging parameters: The IC allows for flexible configuration of battery charging parameters, such as charge voltage and current limits, to accommodate different battery chemistries and requirements.
- Integrated energy storage management: It includes a built-in energy storage element and manages the charging and discharging processes efficiently.
- System monitoring and protection: The BQ25505RGRR provides various monitoring features like undervoltage lockout, overvoltage protection, and thermal shutdown to ensure safe and reliable operation.
Advantages and Disadvantages
Advantages
- High energy conversion efficiency
- Compact form factor
- Flexible charging parameter configuration
- Reliable system protection mechanisms
- Suitable for ultra-low power applications
Disadvantages
- Limited output current capacity
- Requires external components for complete energy harvesting systems
Working Principles
The BQ25505RGRR operates based on the principle of energy harvesting and storage. It utilizes an input voltage from ambient sources and converts it into a usable energy form for charging a battery or powering a load. The IC incorporates MPPT algorithms to track the maximum power point of the input source, ensuring efficient energy extraction. It also manages the charging and discharging processes of the integrated energy storage element, optimizing overall system performance.
Application Field Plans
The BQ25505RGRR finds applications in various fields where energy harvesting is essential. Some potential application areas include: - Wireless sensor networks - Internet of Things (IoT) devices - Wearable electronics - Environmental monitoring systems - Smart agriculture
Alternative Models
For those seeking alternative options, here are some detailed and complete alternative models to consider: 1. BQ25504RGTT: Similar to BQ25505RGRR but with a different pin configuration. 2. LTC3108EDE#PBF: A power management IC with similar energy harvesting capabilities. 3. MAX17710GTL+: Another IC designed for energy harvesting applications, offering additional features.
In conclusion, the BQ25505RGRR is a power management IC specifically designed for energy
Перечислите 10 распространенных вопросов и ответов, связанных с применением BQ25505RGRR в технических решениях.
Sure! Here are 10 common questions and answers related to the application of BQ25505RGRR in technical solutions:
Q: What is the BQ25505RGRR? A: The BQ25505RGRR is a highly integrated energy harvesting power management IC designed for ultra-low-power applications.
Q: What is the purpose of the BQ25505RGRR? A: The BQ25505RGRR is used to efficiently extract and manage energy from ambient sources such as solar, thermal, or vibration, and store it in a rechargeable battery.
Q: What are the key features of the BQ25505RGRR? A: Some key features include ultra-low quiescent current, integrated boost converter, maximum power point tracking (MPPT), and low-voltage cold start capability.
Q: How does the BQ25505RGRR achieve maximum power point tracking (MPPT)? A: The MPPT algorithm implemented in the BQ25505RGRR continuously adjusts the input impedance to maximize the power transfer from the energy source.
Q: Can the BQ25505RGRR charge multiple types of batteries? A: Yes, the BQ25505RGRR supports various types of rechargeable batteries, including lithium-ion, lithium-polymer, and thin-film batteries.
Q: What is the output voltage range of the BQ25505RGRR? A: The BQ25505RGRR can provide an adjustable regulated output voltage ranging from 2.35V to 5.5V.
Q: Is the BQ25505RGRR suitable for low-light or indoor environments? A: Yes, the BQ25505RGRR has a low-voltage cold start capability, allowing it to operate in low-light or indoor environments where the energy source may have limited power.
Q: Can the BQ25505RGRR be used in wearable devices? A: Yes, the BQ25505RGRR is suitable for wearable devices as it can efficiently harvest energy from ambient sources and extend the battery life of the device.
Q: Does the BQ25505RGRR have any protection features? A: Yes, the BQ25505RGRR includes built-in protection features such as overvoltage protection, undervoltage lockout, and thermal shutdown to ensure safe operation.
Q: Are there any evaluation modules available for the BQ25505RGRR? A: Yes, Texas Instruments provides evaluation modules (EVMs) that allow users to easily test and evaluate the performance of the BQ25505RGRR in their applications.
Please note that these answers are general and may vary depending on the specific application and requirements.