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BQ24157SYFFT
Product Overview
Category
BQ24157SYFFT belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.
Use
This product is commonly used in portable electronic devices such as smartphones, tablets, and wearable devices to efficiently charge their batteries.
Characteristics
- High charging efficiency
- Compact size
- Wide input voltage range
- Multiple charging modes
- Overvoltage and overcurrent protection
- Thermal regulation
Package
BQ24157SYFFT is available in a small form factor package, typically a 20-pin QFN (Quad Flat No-leads) package. This package offers good thermal dissipation properties and ease of integration into various electronic designs.
Essence
The essence of BQ24157SYFFT lies in its ability to provide efficient and reliable battery charging solutions for portable electronic devices.
Packaging/Quantity
This product is typically sold in reels or trays containing a specified quantity of ICs, depending on the manufacturer's packaging standards.
Specifications
- Input Voltage Range: 4.35V to 6.45V
- Charging Voltage Range: 3.5V to 4.44V
- Charging Current Range: 500mA to 2A
- Operating Temperature Range: -40°C to 85°C
- Efficiency: Up to 95%
- Protection Features: Overvoltage, overcurrent, and thermal protection
Detailed Pin Configuration
- VIN: Input voltage pin
- VBUS: USB input voltage pin
- PGND: Power ground pin
- SYS: System output voltage pin
- TS: Temperature sense pin
- STAT: Charging status indicator pin
- ISET: Charging current setting pin
- EN: Enable pin
- ILIM: Input current limit pin
- BAT: Battery voltage pin
- TS/NTC: Temperature sense or NTC thermistor input pin
- VREF: Reference voltage output pin
- PROG: Programming pin
- SDA: I2C data pin
- SCL: I2C clock pin
- INT: Interrupt output pin
- TS/NTC: Temperature sense or NTC thermistor input pin
- GND: Ground pin
- VDD: Power supply pin
- VBUS: USB input voltage pin
Functional Features
- Constant current and constant voltage charging modes
- Thermal regulation to prevent overheating
- Automatic detection of battery insertion/removal
- Charging status indication through STAT pin
- Programmable charging parameters via I2C interface
- Fault protection against overvoltage, overcurrent, and short circuits
Advantages and Disadvantages
Advantages
- High charging efficiency leads to faster charging times
- Wide input voltage range allows compatibility with various power sources
- Multiple charging modes cater to different battery chemistries
- Comprehensive protection features ensure safe charging operations
- Compact size enables integration into space-constrained designs
Disadvantages
- Requires additional external components for complete charging circuit implementation
- Limited availability of alternative models from other manufacturers
Working Principles
BQ24157SYFFT operates by regulating the charging current and voltage supplied to the battery. It employs a combination of constant current and constant voltage charging modes to optimize the charging process. The IC continuously monitors the battery's voltage, temperature, and charging status to ensure safe and efficient charging.
Detailed Application Field Plans
BQ24157SYFFT finds extensive application in various portable electronic devices, including but not limited to: - Smartphones - Tablets - Wearable devices - Portable gaming consoles - Bluetooth headphones - Portable power banks
Detailed and Complete Alternative Models
While BQ24157SYFFT is a popular choice for battery charging applications, there are alternative models available from different manufacturers that offer similar functionality. Some notable alternatives include: - MCP73831 - MAX1555 - LTC4054
These alternative models provide comparable features and can be considered based on specific design requirements.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de BQ24157SYFFT en soluciones técnicas
Sure! Here are 10 common questions and answers related to the application of BQ24157SYFFT in technical solutions:
Question: What is the BQ24157SYFFT?
Answer: The BQ24157SYFFT is a battery charger IC designed for single-cell Li-Ion and Li-Polymer batteries.Question: What is the input voltage range supported by the BQ24157SYFFT?
Answer: The BQ24157SYFFT supports an input voltage range of 3.9V to 17V.Question: What is the maximum charging current supported by the BQ24157SYFFT?
Answer: The BQ24157SYFFT can support a maximum charging current of up to 2A.Question: Can the BQ24157SYFFT charge the battery while the system is powered on?
Answer: Yes, the BQ24157SYFFT supports a power path management feature that allows simultaneous charging and system operation.Question: Does the BQ24157SYFFT have overvoltage protection?
Answer: Yes, the BQ24157SYFFT has built-in overvoltage protection to prevent damage to the battery.Question: Can the BQ24157SYFFT be used with different battery chemistries?
Answer: No, the BQ24157SYFFT is specifically designed for single-cell Li-Ion and Li-Polymer batteries.Question: Does the BQ24157SYFFT have thermal regulation?
Answer: Yes, the BQ24157SYFFT has a built-in thermal regulation feature to prevent overheating during charging.Question: What is the operating temperature range of the BQ24157SYFFT?
Answer: The BQ24157SYFFT has an operating temperature range of -40°C to 85°C.Question: Can the BQ24157SYFFT be used in portable devices?
Answer: Yes, the BQ24157SYFFT is commonly used in portable devices such as smartphones, tablets, and wearable devices.Question: Does the BQ24157SYFFT support USB Type-C charging?
Answer: No, the BQ24157SYFFT does not support USB Type-C charging. It is designed for traditional USB-A connectors.
Please note that these answers are general and may vary depending on the specific implementation and configuration of the BQ24157SYFFT in a technical solution.