DESCRIPTION

The SP4480 provides a designer with two electroluminescent lamp drivers for backlighting solutions. The EL lamp outputs operate in opposite phase so he SP4480 device can be easily implemented into applications driving two EL lamps simultaneously or driving double-sided, multi-color EL lamps. The integration of a dual EL lamp driver in a cost-effective single IC reduces component count and board space requirements. The SP4480 is ideal for portable applications such as cellular phones, pagers, PDAs, medical equipment, and other designs with liquid crystal displays, keypads, and backlit readouts.

■ Backlights Keypad & LCD With A Single El Driver

■ A Single External IC Drives Dual EL Lamps Simultaneously Or Independently

■ A Single Coil Drives Both EL Lamp

■ A Single Resistor Controls the Operating Frequency

■ DC-to-AC Inverter Produces Up To 200V P-P

■ Low Current Standby Mode Draws Less Than 1µA

■ +2.2V to +6.0V Battery Operation