BQ24270YFFR - English Editing Encyclopedia Entry

Product Overview

Category

The BQ24270YFFR belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This product is primarily used for managing power in portable electronic devices, such as smartphones, tablets, and wearable devices. It serves as a battery charger and power path management solution.

Characteristics

• The BQ24270YFFR is a highly efficient and compact power management IC.
• It offers a wide input voltage range, making it suitable for various power sources.
• This IC supports multiple charging modes, including fast charging and trickle charging.
• It incorporates advanced safety features to protect the device and battery from overvoltage, overcurrent, and overtemperature conditions.

Package

The BQ24270YFFR is available in a small form factor package, such as a 20-pin wafer-level chip scale package (WCSP).

Essence

The essence of the BQ24270YFFR lies in its ability to efficiently charge and manage the power supply for portable electronic devices, ensuring optimal performance and safety.

Packaging/Quantity

The BQ24270YFFR is typically sold in reels or trays, with a quantity of around 3000 units per reel.

Specifications

• Input Voltage Range: 3.9V to 14V
• Charging Current: Up to 2A
• Output Voltage Range: 3.9V to 4.6V
• Operating Temperature Range: -40°C to 85°C
• Efficiency: Up to 95%
• Protection Features: Overvoltage, overcurrent, and overtemperature protection

Detailed Pin Configuration

The BQ24270YFFR has a total of 20 pins, each serving a specific function. Here is a detailed pin configuration:

1. VBUS: Input voltage from the power source
2. AC/DPDM: USB detection and control pin
3. AC/DPDP: USB detection and control pin
4. TS: Temperature sense input
5. STAT: Status indication output
6. PG: Power good indication output
7. ISET: Charging current setting pin
8. ILIM: Input current limit setting pin
9. EN2: Enable pin for various charging modes
10. EN1: Enable pin for different charging states
11. BAT: Battery voltage sense input
12. SRN: Serial interface receive data
13. SCLK: Serial interface clock
14. SDATA: Serial interface transmit data
15. INT: Interrupt output
16. TS/DP: Temperature sense or USB D+ data line
17. TS/DM: Temperature sense or USB D- data line
18. GND: Ground reference
19. VOUT: Output voltage to the device
20. VIN: Supply voltage input

Functional Features

The BQ24270YFFR offers several functional features that enhance its performance and usability:

1. Power Path Management: Enables simultaneous charging of the battery and powering the device.
2. Dynamic Power Management: Adjusts the charging current based on the available power source.
3. Battery Temperature Monitoring: Monitors the battery temperature to prevent overheating during charging.
4. Charge Termination: Automatically stops charging when the battery is fully charged, preventing overcharging.
5. Safety Protection: Incorporates various protection mechanisms to safeguard the device and battery from potential damage.

Advantages and Disadvantages

Advantages

• High efficiency results in faster charging times.
• Wide input voltage range allows compatibility with various power sources.
• Compact package size enables integration into small form factor devices.
• Advanced safety features protect the device and battery from potential hazards.

Disadvantages

• Limited charging current compared to some high-power devices.
• Requires proper thermal management to prevent overheating during operation.

Working Principles

The BQ24270YFFR operates based on a switching regulator architecture. It utilizes a combination of control circuitry, power MOSFETs, and sensing mechanisms to regulate the charging process. The IC intelligently manages the power flow between the input source, battery, and device, ensuring efficient charging and optimal power utilization.

Detailed Application Field Plans

The BQ24270YFFR finds extensive application in various portable electronic devices, including: - Smartphones - Tablets - Wearable devices (smartwatches, fitness trackers) - Portable gaming consoles - Bluetooth headphones

Detailed and Complete Alternative Models

1. BQ24271YFFR: Similar to BQ24270YFFR with additional I2C interface for advanced control and monitoring capabilities.
2. BQ24272YFFR: A higher current variant of BQ24270YFFR, supporting charging currents up to 3A.