SP4414 Datasheet | Sipex

DESCRIPTION The SP4414 is a high voltage output DC-AC inverter specifically designed to drive electroluminescent lamps to backlight liquid crystal displays, keypads, and backlit readouts used in battery operated portable equipment. The SP4414 will operate from a +2.2V to +4.5 V battery source. The device features a low power shutdown mode which draws less than 100n A (typical), ideal for low power portable products. One external inductor is required to generate the high voltage AC output. An external clock signal is used to drive the internal control signals for the coil and EL lamp. The SP4414 is ideal for portable applications such as pagers, cellular phones, PDAs, and other portable applications using LCDs in dim or low light environments. The SP4414 is offered in 8-pin SOIC and 8-pin µSOIC packages. VBATTERY 7 L1 2.7m H CLK 1 VSS 2 EL2 3 COIL 4 SP4414 8 ELEN 7 VDD C1 10n F 4 ELEN 8 5 CLK 1 2 VSS 6 EL1 3 EL2 CINT 100p F COIL - D1 1N4148 CINT 6 EL1 5 CINT EL Lamp - optional device SP4414DS/17 SP4414 Electroluminescent Lamp Driver © Copyright 2000 Sipex Corporation ABSOLUTE MAXIMUM RATINGS These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. Power Supply, VBATT 7.0V Input Voltages, ELEN (pin 2) -0.5V to (VDD+0.5V) Lamp Outputs 200VPP Operating Temperature -40˚C to +85˚C Storage Temperature -65˚C to +150˚C Power Dissipation Per Package 8-pin NSOIC (derate 6.14m W/o C above +70o C) 500m W 8-pin µSOIC...