Battery Charger Achieves Faster, Cooler Charging in Mobile Phones, Portable Electronics

(Product News, 25 Jul 2008)

Texas Instruments Inc. (TI) has launched bq24150, a 3MHz switch-mode battery charge management integrated circuit (IC) for portable electronics that can be charged from an adaptor or a USB port. Measuring 2x2mm, the bq24150 switching charger significantly improves charge time, reduces power dissipation and cuts board space in half compared to typical implementation with linear chargers.

Texas Instrument's bq24150 device with integrated 1.25-A FETs is the industry's smallest I2C programmable buck-charger solution, providing maximum battery charging performance and design flexibility in USB-powered applications, such as smart phones, portable media players or other consumer electronics. The charger only requires the use of a tiny 1µH inductor and small ceramic capacitors, resulting in a solution size of 7.6x10.4mm. The bq24150 also features a reverse boost USB On-the-Go (OTG) mode that generates a voltage supply to power accessories that are plugged into a mini-USB port, eliminating the need for another discrete device.

The bq24150 fully complies with USB charging standards. The device can achieve high peak efficiency of up to 92 percent, while supporting a USB battery charging current up to 0.9A. This speeds the charging rate without exceeding the 0.5A input current limit mandated by the USB standard. In addition, the bq24150 significantly reduces power dissipation, as compared to linear charging, making it ideal for high-performance, ultra-space constrained applications.

Click here for more information on Texas Instruments' bq24150 battery charge management IC

Click here for more information on Texas Instruments


RELATED ARTICLES

Zero-drift Instrumentation Amplifier Targeted at Portable, Precision Applications

Class-D Amplifier Features Dynamic Range Compression and Speaker Protection

TI Intensifies Focus on Analog with New Strategic Business Unit

Mobile Industry Endorsement for Symbian Foundation Grows

ZigBee Processor Simplifies Low-power Wireless Product Design

Data Converters Feature 6dB SNR

Texas Instruments and Xinwei Accelerate Broadband Voice and Data Coverage to Millions of Chinese Households

MetaSwitch and Texas Instruments Collaborate on Enhanced Voice Quality Monitoring

Texas Instruments Brightens Notebook LCD Displays with New White LED Drivers

Mobile Leaders to Unify the Symbian Software Platform

Texas Instruments Launches Latest Current Feedback Amplifier for Differential Signals

Texas Instruments' Digital-input Serializer Incorporates Eight Channels

Technology Integration and Business Acquisitions Likely to Define GPS IC Markets

Texas Instruments' Power Supply Controller Achieves 97% Efficiency