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TI adapter power ICs enable universal charging

Posted: 08 Aug 2012 ?? ?Print Version ?Bookmark and Share

Keywords:TI? power management controller? USB? UCC28700? TPS2511?

Texas Instruments Inc. (TI) has announced its power management controllers that according to the company save standby power to help smartphone users consume less electricity with their 5W cube adapters, even when they are left plugged into the wall. The UCC28700 primary-side controllers will enable smaller cubes, wireless power charging stations and other AC-powered equipment, added the company.

TI also introduced the TPS2511, an intelligent USB charging port controller that complies with USB Battery Charging 1.2 specifications for charging adapters of popular smartphones or 5V tablets.

Phone and adapter makers strive to meet the new 5-Star no-load power consumption rating of The UCC28700 requires only 1.5uA startup current and boasts the highest integration with primary side regulation. It eliminates need for opto-feedback circuit. The device's wide VDD input voltage range and hysteresis with low IDD standby current results in smaller capacitors. In addition, high-frequency allows smaller transformers and requires no additional external circuitry.

TI's TPS2511 intelligent USB charge controller meets the USB Battery Charging 1.2 specification, and provides additional charge algorithms to the system. It combines a current-limit USB power switch and a USB dedicated charging port identification circuit to automatically detect USB 2.0 and 3.0 data line voltages and provide the correct electrical signature to safely charge compliant devices.

The TPS2511 meets regulatory requirements set forth by USB Battery Charging 1.2, as well as the Chinese Telecom Specification YD/T 1591-2009, stated TI. It supports many popular smartphones or 5V tablets using universal charging capability, noted the company.

The UCC28700 flyback controller is available in a 6-pin, 3-by-3mm SOT-23 package, and is priced at 35 cents in quantities of 1,000. TI's TPS2511 universal charger controller comes in an 8-pin, 3-by-5mm MSOP package, and is priced at 90 cents in quantities of 1,000. Evaluation modules are available for the UCC28700EVM-068 and the TPS2511EVM-141.

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