Phoenix, Ariz. ON Semiconductor has introduced the NUS3116, an integrated charging and power switching circuit for small form-factor portable electronics including cellular phones. This circuit combines a main battery switch, wall charging switch, and USB charging switch elements in a single component to save space in handheld electronic devices.
The NUS3116 integrates the main power switch, a uCool single P-channel MOSFET to handle the main battery switch function, and two internal low saturation PNP transistors to handle dual-channel charging elements. With 40 milliohm maximum RDS(ON), the main switch MOSFET minimizes power loss during battery operation of portable electronics. The dual low-Vce(sat) transistors provide good thermal performance for charge currents up to 2 A, and offer a Vce voltage drop of less than 240 milivolts (mV) at the end of the charging.
Offered in a lead-free DFN-8 package that requires 9 mm2 of board space, the NUS3116 provides a board savings of more than 20 mm2 versus typical solutions using three TSOP-6 packages with interconnect space. In addition, the low profile of 0.8 mm allows the device to be used in small for- factor designs.
Pricing: $0.80 per unit in quantities of 3,000.
Product information: NUS3116
ON Semiconductor, 1-602-244-6600, www.onsemi.com