Sunnyvale, Calif.—Supertex's HV841 and the new version of its HV839, for higher brightness, are designed to drive two electroluminescent (EL) lamps with a combined area of 3.5 in2 for backlighting liquid crystal displays (LCDs) and keypads in mobile phones and other portable devices.
The HV841, which is designed to reduce audible noise emitted by the lamps, delivers ±100 volts from a 2- to 5.8-volt input. This chip is TTL and CMOS compliant. The device is available in lead-free RoHS compliant 10-pin MSOP and 10-pin MLP packages.
The HV839, a ±90-volt device which is available in the same packaging, is also now TTL and CMOS compliant.
The device datasheets are available by clicking here for the HV839, and here for the HV841. The HV841 is priced at $1.12 (MSOP) and $1.15 (MLP) in 1k quantities, and the HV839 is $1.05 and $1.08, respectively.
Supertex Inc., 1-408-222-8888, www.supertex.com.