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TI's MaxCharge™ technology reduces battery charging times by up to 60%.

Google 우선 소스Published2015.05.21 19:51
Texas Instruments Korea (President and CEO Kent Chon, www.ti.com/kr) May 12, 2015 – Texas Instruments (TI) (NASDAQ: TXN) today introduced the industry’s first fully integrated 5-A single-cell lithium-ion (Li-ion) battery charger. This new device features Texas Instruments’ proprietary MaxCharge technology, which enables faster, cooler charging, reducing charge times by up to 60 percent compared to conventional battery chargers. The bq25892 switch-mode charger maximizes the benefits of unprecedented fast charging while providing a safe charging experience for users. MaxCharge technology enables faster charge times and cooler charging, improving the user experience and extending the overall life of electronic devices in many Li-ion applications, including smartphones, tablets, drones, power banks, and industrial and medical equipment.

High-efficiency charging ICs only increase the temperature by at least 18˚C when charging at 3.5A. It combines narrow voltage (NVDC) power path management with TI's MaxCharge technology to support input voltages up to 14 V, enabling faster, lower temperature charging while delivering up to 5 A of charge current.
Key Features and Benefits of the BQ25892
· High-input voltage support for fastest charging: The industry's first single-cell lithium-ion battery charger IC supporting 5A of current and input voltage up to 14V.
·Highest efficiency: Up to 91% charging efficiency at 9Vin, 3.5A with only 18˚C temperature rise
· Safe charging: Reduces overheating by controlling the built-in circuit temperature, and optimizes thermal performance with a thermal regulation loop.
High battery replenishment current: The charger IC can provide 9A peak replenishment current for instantaneous system power bursts.
·Easy design integration: Pin-to-pin compatible with TI's bq24192 family of products
This fast-charging battery charger IC is designed for use in single-cell portable devices with TI battery fuel gauges. For example, combining TI MaxCharge technology devices with TI MaxLife™ battery fuel gauge technology can extend battery life and ensure safer charging in portable electronics.
Tools and Support
The I2C-controlled 1S, 5A fast-charge IC is available as a new TI Designs reference design, TIDA-00538. This reference design utilizes MaxCharge technology to provide turnkey access to high input voltage and variable USB OTG boost, reducing battery charging time and extending battery life during the discharge phase.
Supply period and price
The bq25892 charger IC is currently in volume production and is available through the TI store and authorized distributors in a 4-mm x 4-mm, 24-pin quad flat no-lead (QFN) package. The bq25890 and bq25892 for smartphones and tablets are priced at $2.50 in 1,000-unit quantities, while the new bq25895, which supports power banks, is available for $2.00.
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