High Voltage EL Lamp Driver
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HV824
Advanced Information
High Voltage EL Lamp Driver
Ordering Information
Package Options Device...
Description
www.DataSheet4U.com
HV824
Advanced Information
High Voltage EL Lamp Driver
Ordering Information
Package Options Device HV824 Input Voltage 1.0V to 1.6V 8-Lead SO HV824LG Die HV824X
Features
Processed with HVCMOS® technology 1.0V to 1.6V supply voltage DC to AC conversion Permits the use of high-resistance elastomeric lamp connectors Adjustable output lamp frequency to control lamp color, lamp life, and power consumption Adjustable converter frequency to eliminate harmonics and optimize power consumption Enable/disable function Low current draw under no load condition
General Description
The Supertex HV824 is a high voltage driver designed to drive EL lamps with capacitive loads of 2nF to 15nF. The input supply voltage range is 1.0V to1.6V. The device uses a single inductor and a minimum number of passive components. Typical output voltage applied to the EL lamp is 120V to 150V peak-to-peak. The HV824 can be enabled/disabled by connecting the R SW resistor to VDD/ground. In die form, the device has an enable bar pad which enables the IC when it is at logic low. The HV824 has two internal oscillators, a switching MOSFET, and a high voltage EL lamp driver. The frequency for the switching MOSFET is set by an external resistor connected between the Rsw-osc pin and the VDD pin. The EL lamp driver frequency is set by an external resistor connected between the REL-osc pin and the VDD pin. An external inductor is connected between the Lx and VDD pins. A 0.01µF to 0.1µF capacitor i...
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