High side current sensing allows the ground to be undisturbed when sensing input or load currents. Grounding system impedances in low side current sensing often cause signal degradation or electromagnetic interference. Because the HV7800 is designed to be used on the high side of a circuit, it avoids these sensing problems and provides a much easier sensing implementation.
"The wide input voltage range of the HV7800 allows it to be used to monitor current in telecom and base station applications, power management applications, and LCD TVs with LED backlight applications in which the HV7800 is recommended for use in conjunction with our recently introduced LED driver IC, the HV9911," states Ahmed Masood, Vice President of Marketing for Supertex. "The IC solves many current sense design problems -- high voltage, high precision, fast response time and space considerations."
The HV7800 is available in a SOT23-5 package (HV7800K1-G). The part is "Green" and RoHS compliant. Samples are available from stock. Lead-time for production quantities is 4-6 weeks ARO. Pricing is US$0.56 each for the HV7800K1-G in 1K quantities.
About Supertex
Supertex, Inc. is a publicly held mixed signal semiconductor manufacturer, focused in high voltage interface products for use in the telecommunications, networking systems, flat panel displays, medical and industrial electronics industries. Supertex product, corporate and financial information is readily available at www.supertex.com.
Corporate Headquarters: Ken Vickers Marketing Communications Manager 408/222-4810 Email Contact
