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Texas Instruments Introduces Single-Chip Buck-Booster Charge Controllers for 1S to 4S Designs

By Neha Rastogi July 19, 2017

Texas Instruments, a global semiconductor design, and manufacturing company, has officially released a pair of highly flexible, single-chip buck-boost battery charge controllers for one-to four-cell (1S to 4S) designs. The synchronous charge controllers namely bq25703A and bq25700A support efficient charging through USB Type-C and other USB ports in end equipment. These include notebooks, tablets, power banks, drones, smart home applications and so on. 
 
Supporting both I2C and SMBus interfaces, these devices feature a new advanced battery algorithm allowing power output by adding intelligence to battery charging by making use of 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. It also maintains the consistent system and charging current so that the maximum input power is utilized. 
 
Texas Instruments Introduces Single-Chip Buck-Booster Charge Controllers
(Image Courtesy: Texas Instruments)

Key Features

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

Availability 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.

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.

Filed Under: News
Tagged With: Electronic Parts, Texas Instruments
 

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