BQ26500PWRG4 - English Editing Encyclopedia Entry

Product Overview

Product Name: BQ26500PWRG4
Category: Power Management IC
Use: Battery charger and power path management solution
Characteristics: High efficiency, compact size, advanced protection features
Package: 20-pin TSSOP package
Essence: Efficiently charges batteries while providing power to the system
Packaging/Quantity: Available in reels of 2500 units

Specifications

• Input Voltage Range: 4.5V to 24V
• Output Voltage Range: 3.5V to 18V
• Charging Current: Up to 6A
• Operating Temperature Range: -40°C to +85°C
• Efficiency: Up to 95%
• Protection Features: Overvoltage, overcurrent, short circuit, thermal shutdown

Detailed Pin Configuration

The BQ26500PWRG4 has a total of 20 pins, each serving a specific function. The pin configuration is as follows:

1. VBUS: Input voltage from the power source
2. GND: Ground reference
3. TS: Thermistor input for temperature monitoring
4. BAT: Battery connection
5. SYS: System output voltage
6. STAT: Status indicator output
7. ISET: Charging current setting
8. PROG: Programming pin for customizing charging parameters
9. CE: Enable pin for controlling device operation
10. INT: Interrupt output for notifying charging status changes
11. SDA: I2C data line
12. SCL: I2C clock line
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. NC: No connection
17. NC: No connection
18. NC: No connection
19. NC: No connection
20. NC: No connection

Functional Features

• Integrated battery charger and power path management solution
• Supports various battery chemistries (Li-Ion, Li-Polymer, etc.)
• High charging efficiency reduces power loss
• Advanced protection features ensure safe operation
• I2C interface for easy configuration and monitoring
• Compact size suitable for space-constrained applications

Advantages and Disadvantages

Advantages: - High charging efficiency saves energy - Comprehensive protection features enhance safety - Compact package size allows for flexible design integration - I2C interface enables easy customization and monitoring

Disadvantages: - Limited to 6A charging current, may not be suitable for high-power applications - Requires external components for complete system implementation

Working Principles

The BQ26500PWRG4 is designed to efficiently charge batteries while providing power to the system. It utilizes a power path architecture that allows simultaneous charging and discharging. The device intelligently manages the power flow between the input source, battery, and system load.

When an input voltage is detected, the BQ26500PWRG4 automatically switches to the power path mode, supplying power to the system while charging the battery. It employs a switching regulator to achieve high charging efficiency and minimize power loss.

The device continuously monitors the battery voltage, temperature, and charging current to ensure safe operation. It incorporates advanced protection features such as overvoltage, overcurrent, short circuit, and thermal shutdown to safeguard the battery and system from potential damage.

Detailed Application Field Plans

The BQ26500PWRG4 is widely used in various portable electronic devices, including but not limited to:

1. Smartphones and tablets
2. Wearable devices
3. Portable medical equipment
4. Handheld gaming consoles
5. IoT devices
6. Portable power banks

Its compact size, high efficiency, and advanced protection features make it an ideal choice for applications where space is limited, energy efficiency is crucial, and safety is paramount.

Detailed and Complete Alternative Models

1. BQ24650RGER - Battery charger with similar specifications and package
2. LTC4000-1 - High-power battery charger with extended charging current range
3. MAX8903CETI+ - Integrated power management IC with battery charging capability

These alternative models offer similar functionalities and can be considered as alternatives to the BQ26500PWRG4 based on specific application requirements.

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