TI introduces smallest Impedance Track™ battery fuel gauge for handheld electronics

Extends family of high-accuracy battery fuel gauges with system- and pack-side devices

Bangalore (March 10, 2009) - Texas Instruments Incorporated (TI) (NYSE: TXN) today introduced a single-cell battery fuel gauge integrated circuit (IC) with Impedance Track™ technology, which is half the size of its predecessor. The tiny bq27505 stand-alone lithium battery capacity monitoring and reporting device resides in the system and measures only 2.5 mm x 2 mm x 0.625 mm, and supports portable applications, such as smart phones, digital cameras and MP3 players, where maintaining long battery life is critical for end users. For details see: www.ti.com/bq275xx-pr.

TI also introduced the bq27541, which resides within a battery pack or on the system’s main board in an embedded, non-removable battery. The device also provides secure battery pack authentication, using the SHA-1/HMAC authentication algorithm.

Impedance Track technology accurately predicts battery capacity instantly under all operating conditions, including battery age, temperature and discharge behavior. Today, TI ships millions of battery fuel gauge ICs with Impedance Track technology to customers worldwide in applications ranging from notebooks to smart phones.

Key features of the bq27505	Key benefits
Patented Impedance Track next-generation gauging algorithm Accurate and complete battery fuel gaug CPU-based IC reports remaining capacity, time-to-empty, voltage, current, temperature and more Calculates remaining charge under all conditions System-side implementation even with a removable battery 12-pin, 2.5 x 2 x 0.625 mm WCSP package	Provides complete “state-of-health” battery information so a system can effectively manage the battery and extend run-time No calculations needed with the host microcontroller for easy implementation Accurate display of run time under all conditions No extra circuitry needed inside the battery pack Smallest Impedance Track solution in the industry

Find out more about TI’s single-cell battery fuel gauge ICs at the links below:

ARM926EJ-S™ core delivers up to 300 MHz while offloading the video encode/decode functions to the integrated HD video accelerators for optimal system performance
Multi-format, multi-rate HD video with H.264, MPEG-4, MPEG-2, MJPEG and VC1 codecs provides ultimate video flexibility, ensures compatibility with legacy codecs and the ability to expand a product portfolio on one platform
On-chip ISP with noise filtering, video stabilization, face detection, auto white balance, auto focus, auto exposure and edge enhancement allows for image improvements and added intelligent video processing
ISP eliminates need for customers to create custom algorithms in-house or purchase expensive optics to achieve high-quality images
Integrated peripherals (EMAC, USB 2.0 Phy, 16-bit DDR2, voice codecs, real time clock and three 10-bit DACs) for smaller board size and system cost savings of up to 25 percent
Royalty-free, production-ready codec bundles (MP3, G.711, H.264, MPEG-4 and JPEG) and premium audio and video bundles (AAC, WMA and AEC, MPEG-2, VC1/WMV9) decrease design complexity and accelerate time-to-market

Find out more about TI’s DM365 digital media processor by visiting the links below:

Order evaluation modules and samples: www.ti.com/bq275xx-pr
Application note: Single-Cell Gas Gauge Application Book
Talk with TI engineers about bq275xx at the TI Battery Forum: www.ti.com/batteryforum
Power Management Selection Guide: www.ti.com/powerguide

About Texas Instruments:

Texas Instruments (NYSE: TXN) helps customers solve problems and develop new electronics that make the world smarter, healthier, safer, greener and more fun. A global semiconductor company, TI innovates through manufacturing, design and sales operations in more than 25 countries. For more information, go to www.ti.com.