IMP528 Datasheet PDF

IMP Inc IMP528

The IMP528 is an Electroluminescent (EL) lamp driver with the four EL lamp driving functions on-chip. These are the switch-mode power supply, its high-frequency oscillator, the high-voltage H-bridge lamp driver and its low-frequency oscillator. The IMP528 drives EL lamps of up to 50nF capacitance to high brightness; EL lamps with capacitances greater than 50nF can be driven, but will be lower in light output.

Part No.	IMP528
Datasheet	IMP528 Download
Manufacturer	IMP Inc
Description	HIGH-VOLTAGE EL LAMP DRIVER
Buy	Stock & Price

FEATURES

N N N N N N N N N 220V peak-to-peak typical AC output voltage Low Power: 420µA typical VDD current Wide operating voltage range - from 2.0V to 6.5V Large output load capability - drives lamps with more than 50nF capacitance Eliminates external protection resistor in series with EL lamp Adjustable output lamp frequency for control of lamp color, lamp life, and power consumption Adjustable converter frequency to minimize power consumption High-Voltage CMOS Process MicroSO package option

APPLICATIONS

N N N N N N N GPS units/Pagers/Cellular phones PDAs/Handheld computers Safety illumination Portable instrumentation Battery-operated displays LCD modules Toys 4 LX CS Block Diagram VDD 1 RSW-OSC GND 2 Switch Oscillator 3 5 + C Regulation Control Q 7 VREF Bridge Output Driver Q 6 VB Q V A – IMP528 REL-OSC 8 Lamp Drive Oscillator Q 528_01.eps © 2001 IMP, Inc. 408-432-9100/ 1 IMP528 Pin Configuration SO/ MicroSO VDD RSW-OSC CS LX 1 2 3 4 IMP528 8 7 6 5 REL-OSC VA VB GND 528_02.eps Pin Compatible With IMP803 and IMP560 Ordering Information Part Number IMP528ESA IMP528EMA IMP528/D* IMP528/D1** Input Voltage 2.0V to 6.5V 2.0V to 6.5V 2.