BQ24159YFFR

Introduction

The BQ24159YFFR is a highly efficient, single-cell Li-Ion battery charger with power path management. This device is designed to charge the battery from both a USB port and an AC adapter. It provides various features to support system power, including dynamic power management (DPM), input current limit, and minimum input voltage regulation. The BQ24159YFFR is suitable for a wide range of portable applications.

Basic Information Overview

• Category: Battery Charger IC
• Use: Charging single-cell Li-Ion batteries from USB ports or AC adapters
• Characteristics: High efficiency, power path management, dynamic power management
• Package: 20-pin, 3.50 mm × 4.50 mm, 0.40 mm pitch, DSBGA
• Essence: Efficient and versatile battery charging solution
• Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

• Input Voltage Range: 3.9V to 17V
• Charge Voltage: 4.2V
• Pre-Charge Current: 250mA
• Termination Current: 10% of the fast charge current
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

1. VIN: Input voltage
2. TS: Thermistor input for battery temperature monitoring
3. CE: Charger enable control
4. STAT: Charge status output
5. PG: Power good status output
6. VSSOP: Ground
7. BAT: Battery connection
8. SYS: System power output
9. PROG: Charge current programming
10. ILIM: Input current limit programming
11. TS/NTC: Thermistor input for battery temperature monitoring
12. TS2: Second thermistor input for battery temperature monitoring
13. TS1: First thermistor input for battery temperature monitoring
14. TS3: Third thermistor input for battery temperature monitoring
15. TS4: Fourth thermistor input for battery temperature monitoring
16. TS5: Fifth thermistor input for battery temperature monitoring
17. TS6: Sixth thermistor input for battery temperature monitoring
18. TS7: Seventh thermistor input for battery temperature monitoring
19. TS8: Eighth thermistor input for battery temperature monitoring
20. VSS: Ground

Functional Features

• Power Path Management
• Dynamic Power Management (DPM)
• Input Current Limit
• Minimum Input Voltage Regulation
• Thermal Regulation and Protection

Advantages and Disadvantages

Advantages

• High efficiency charging
• Versatile input voltage range
• Power path management for simultaneous charging and system power delivery

Disadvantages

• Requires careful thermal management due to high power dissipation
• Complex pin configuration may require careful PCB layout

Working Principles

The BQ24159YFFR operates by regulating the charging current and voltage to ensure safe and efficient charging of single-cell Li-Ion batteries. It incorporates power path management to allow the system to be powered directly from the input source while the battery is being charged. The device also includes dynamic power management to optimize the power flow based on the input source and system load.

Detailed Application Field Plans

The BQ24159YFFR is well-suited for a variety of portable applications, including: - Smartphones and tablets - Portable media players - Handheld gaming devices - Portable medical devices - Wearable electronics

Detailed and Complete Alternative Models

• BQ24158YFFR
• BQ24160YFFR
• BQ24161YFFR
• BQ24162YFFR

In conclusion, the BQ24159YFFR offers a comprehensive set of features for efficient and flexible single-cell Li-Ion battery charging. Its power path management and dynamic power management capabilities make it an ideal choice for a wide range of portable applications.

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