SP4491 Datasheet (Sipex) - Two Panel Electroluminscent Lamp Driver

SP4491, Two Panel Electroluminscent Lamp Driver

The SP4491 electroluminescent lamp driver provides designers of cell phones PDA's and other handheld, portable electronic devices with an integrated solution for driving two EL lamps independently or concurrently.

The SP4491 reduces system cost, component count and board space requirements over a di

® SP4491 Two Panel Electroluminscent Lamp Driver s Single IC Drives 2 EL Lamps For Backlighting: Cell Phone Keypad & LCD Multi-Color EL Lamps Multi-Segment EL Lamps s Control Over Lamp-A & Lamp-B For Independent Or Concurrent Operation s +2.2V to +6.0V Battery Operation s Single Coil Used To Generate High Voltage AC Outputs s Low Power Standby Mode Draws 100nA Typical Current s A Single Resistor Controls the Internal Oscillator s DC-AC Inverter Produces Up To 220VP

SP4491 Features

* a low power standby mode which draws less than 1µA. The frequency of the internal oscillator is set using a single external resistor. A single external inductor is required to generate the high voltage AC outputs to drive the EL lamps. All input pins are ESD protected with internal diodes to VDD and