BQ24702PWR

Product Overview

Category

BQ24702PWR belongs to the category of power management integrated circuits (PMICs).

Use

This PMIC is primarily used for battery charging and system power management in portable electronic devices.

Characteristics

• Efficient power conversion and management capabilities
• Compact size and low power consumption
• Wide input voltage range
• Multiple protection features for safe operation

Package

BQ24702PWR is available in a small outline package (SOP) with 20 pins.

Essence

The essence of BQ24702PWR lies in its ability to efficiently manage power flow between the power source, battery, and the device it powers.

Packaging/Quantity

This PMIC is typically sold in reels containing 250 units per reel.

Specifications

• Input Voltage Range: 4.5V to 26V
• Output Voltage Range: 2.5V to 25.2V
• Charging Current Range: Up to 8A
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

1. ACIN: Input voltage from the power source
2. ACOK: AC adapter present indicator
3. BAT: Battery connection
4. TS: Thermistor input for temperature monitoring
5. SRN: System reset output
6. SDA: I2C data line
7. SCL: I2C clock line
8. INT: Interrupt output
9. VDD: Power supply for internal circuitry
10. PGND: Power ground
11. AGND: Analog ground
12. ILIM: Current limit setting
13. PROCHOT: Processor hot signal input
14. PGOOD: Power good indicator
15. SYS: System power output
16. STAT: Status output
17. TS2: Second thermistor input
18. VREF: Reference voltage output
19. ISET: Current sense resistor connection
20. VSS: Ground

Functional Features

• Dynamic power path management for simultaneous charging and system operation
• High-efficiency synchronous buck-boost charger architecture
• Programmable charge current and voltage settings
• Battery temperature monitoring and protection
• Overvoltage, overcurrent, and short-circuit protection mechanisms

Advantages and Disadvantages

Advantages

• Efficient power conversion and management
• Wide input voltage range allows compatibility with various power sources
• Multiple protection features ensure safe charging and operation
• Compact size enables integration into space-constrained devices

Disadvantages

• Limited charging current compared to some high-power devices
• Requires external components for complete functionality

Working Principles

BQ24702PWR operates by regulating the power flow between the input source, battery, and the device it powers. It employs a synchronous buck-boost charger architecture to efficiently convert and manage power. The PMIC continuously monitors the battery status, temperature, and input voltage to ensure optimal charging and system operation.

Detailed Application Field Plans

BQ24702PWR finds applications in a wide range of portable electronic devices, including: - Smartphones and tablets - Laptops and ultrabooks - Portable gaming consoles - Wearable devices - Portable medical equipment

Detailed and Complete Alternative Models

1. BQ24703PWR
2. BQ24704PWR
3. BQ24705PWR
4. BQ24706PWR
5. BQ24707PWR

These alternative models offer similar functionality and characteristics to BQ24702PWR, providing flexibility in design and application choices.

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