industry news
Subscribe to EE Journal Daily Newsletter

TI introduces single-chip buck-boost battery charge controllers enabling USB Type-C™ and USB Power Delivery support

New battery algorithm provides maximum input power for 1S to 4S applications

DALLAS (July 18, 2017) – Texas Instruments (TI) (NASDAQ: TXN) today introduced a pair of highly flexible, single-chip buck-boost battery charge controllers for one- to four-cell (1S to 4S) designs. The bq25703A and bq25700A synchronous charge controllers support efficient charging through USB Type-C and other USB ports in end equipment ranging from notebooks and tablets to power banks, drones and smart home applications. To learn more about the bq25703A and bq25700A, see www.ti.com/bq25703A-pr and www.ti.com/bq25700A-pr.

Supporting both I2C and SMBus interfaces, the bq25703Aand bq25700A feature a new advanced battery algorithm enabling full power output by adding intelligence to battery charging through maximum power point tracking technology. The unique algorithm, referred to as input current optimization (ICO), automatically detects the full capacity of input power to optimize current, while maintaining consistent system and charging current to ensure the utilization of maximum input power.

Key features and benefits

  • Input source flexibility: The device’s USB Power Delivery compatibility offers an input voltage range from 3.5 V to 24 V, which designers can use in multiple ports including USB 2.0, USB 3.0 and the newest standard, USB Type-C.
  • Wide USB On-the-Go (OTG) output compatibility: The new charge controllers support input-ready devices from 5 V to 20 V and adjustable output for USB OTG with programmable current regulation.
  • Compact configurations: TI’s new battery-charging algorithm and intelligent detection features enable the battery charge controllers to support wide input and output voltage ranges and more compact adaptor designs.
  • Seamless transition between different modes : The devices support 1S to 4S batteries and an efficient transition between buck and boost operation without any dead zone.

The bq25703A and bq25700A expand TI’s portfolio of industry-leading battery-charger solutions, offering switch-mode fast chargers and linear chargers for a broad variety of applications and power levels. Learn more about TI’s battery charging solutions for accurate, dependable and faster, cooler charging and how TI’s USB Type-C ecosystem provides protected power delivery for low power applications.

Tools and support

Designers can use the bq25700A evaluation module (EVM) to easily evaluate device features and performance and speed time to market. The bq25703A EVM and the bq25700A EVM  are available from the TI store and authorized distributors for US$149.00. Designers can use the WEBENCH® Battery Charger Designer to calculate the efficiency of the battery charge controller.

Availability, packaging and pricing

The bq25703A and bq25700A charge controllers are now available through the TI store and authorized distributors. Offered in a 4-mm-by-4-mm, 32-pin quad flat no-lead (QFN) package, the controllers are priced at US$2.20 in 1,000-unit quantities.

Find out more about TI’s battery-management solutions

About Texas Instruments

Texas Instruments Incorporated (TI) is a global semiconductor design and manufacturing company that develops analog ICs and embedded processors. By employing the world’s brightest minds, TI creates innovations that shape the future of technology. TI is helping more than 100,000 customers transform the future, today. Learn more at www.ti.com.

Leave a Reply

featured blogs
Aug 18, 2017
After leaving the title of yesterday's post in German, the obvious place to go for the next stop on the summer of computer museums is Germany. If you ask people which was the first digital computer, the answer tends to vary with the respondent's nationality. Do comp...
Aug 18, 2017
Bourbon lovers appreciate their favorite spirits in many forms.  Neat. On the Rocks. A favorite mixed drink. An emerging trend in bourbon drinking comes from an unlikely place: Infinite Harvest – an indoor hydroponic vertical farm. Infinite Harvest produces ...
Aug 09, 2017
Recall for a moment a scene—you’ve probably witnessed something like it at trade shows or on video dozens of times. A robot arm moves purposefully from its rest position. It swoops down on an object—a sphere, say—plucks it up, holds it aloft, replaces it, ...
Aug 03, 2017
Speedcore eFPGAs are embeddable IP that include look-up tables, memories, and DSP building blocks, allowing designers to add a programmable logic fabric to their SoC. The Speedcore IP can be configured to any size as dictated by the end application. The SoC supplier defines t...