Overview
The BQ24130RHLR, produced by Texas Instruments, is an integrated host-controlled Li-ion and Li-polymer switch-mode battery charge controller. It features a constant-frequency synchronous PWM controller with high accuracy regulation of charge current and voltage. The device is designed to charge one, two, or three Li-ion or Li-polymer cells with a maximum charge current of up to 4 A. It is available in a compact 20-pin, 3.5 x 4.5 mm VQFN package, making it suitable for various portable and embedded applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | VQFN-20 | - |
| Pins | 20 | - |
| Operating Temperature Range | -40 to 85 | °C |
| Input Voltage Range | 4.5 to 17 | V |
| Input Rating | 30 V with 18V Overvoltage Protection | V |
| Charge Current | Up to 4 A | A |
| Efficiency | Up to 96% | % |
| Switching Frequency | 600 kHz | kHz |
| Battery Charge Voltage | 1, 2, or 3 cells with 4.2 V/cell | V |
| Thermal Regulation | TJ = 120°C | °C |
Key Features
- 600 kHz Synchronous Switch-mode Charger with 4 A Integrated N-MOSFETs
- Up to 96% Efficiency
- 30 V Input Rating with 18V Overvoltage Protection
- 4.5 V to 17 V Input Operating Range
- Constant Current Super Capacitor Charging
- High Integration with Integrated 20-V Switching MOSFETs and Bootstrap Diode
- Internal Loop Compensation and Digital Soft Start
- Safety Features: Thermal Shutdown, Battery Thermistor Sense, Input Overvoltage Protection, Cycle by Cycle Current Limit
- ±0.5% Charge Voltage Regulation and ±4% Charge Current Regulation
- Less than 15 µA Battery Current with Adapter Removed
- Small QFN Package (3.5 mm x 4.5 mm)
Applications
- Tablet PCs
- Netbooks and Ultra-Mobile Computers
- Portable Data Capture Terminals
- Portable Printers
- Medical Diagnostics Equipment
- Battery Bay Chargers
- Back-Up Systems
- Li-Ion/Li-Polymer Battery and Super Capacitor Applications
Q & A
- What is the BQ24130RHLR?
The BQ24130RHLR is an integrated host-controlled Li-ion and Li-polymer switch-mode battery charge controller produced by Texas Instruments.
- What is the maximum charge current supported by the BQ24130RHLR?
The BQ24130RHLR supports up to 4 A charge current.
- What is the input voltage range of the BQ24130RHLR?
The input voltage range is from 4.5 V to 17 V.
- What safety features does the BQ24130RHLR include?
The device includes thermal shutdown, battery thermistor sense, input overvoltage protection, and cycle by cycle current limit.
- How efficient is the BQ24130RHLR?
The BQ24130RHLR has an efficiency of up to 96%.
- What is the switching frequency of the BQ24130RHLR?
The switching frequency is 600 kHz.
- Can the BQ24130RHLR charge super capacitors?
- What is the package type and size of the BQ24130RHLR?
The device is packaged in a 20-pin VQFN package with dimensions of 3.5 mm x 4.5 mm.
- How does the BQ24130RHLR regulate charge voltage and current?
The device offers ±0.5% charge voltage regulation and ±4% charge current regulation.
- What are some typical applications of the BQ24130RHLR?
Typical applications include tablet PCs, netbooks, portable data capture terminals, portable printers, and medical diagnostics equipment.
