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IMP528

IMP Inc
Part Number IMP528
Manufacturer IMP Inc
Description HIGH-VOLTAGE EL LAMP DRIVER
Published Apr 5, 2005
Detailed Description IMP528 POWER MANAGEMENT High-Voltage EL Lamp Driver – 220 VPP Drive The IMP528 is an Electroluminescent (EL) lamp drive...
Datasheet PDF File IMP528 PDF File

IMP528
IMP528

Overview
IMP528 POWER MANAGEMENT High-Voltage EL Lamp Driver – 220 VPP Drive 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.
The typical regulated output voltage that is applied to the EL lamp is 220V peak-topeak.
The circuit requires few external components; a single inductor, single diode, two capacitors and two resistors.
Two of these resistors set the frequency for two internal oscillators.
Unlike other EL lamp drivers, the IMP528 does not require an external protection resistor in series with the EL lamp.
The IMP528 operates over a 2.
0V to 6.
5V supply voltage range.
A regulated, low-power source can supply the low quiescent curren...


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