IMP528D datasheet(4/6 Pages) IMP

номер детали	IMP528D

подробное описание детали	HIGH-VOLTAGE EL LAMP DRIVER

PDF	6 Pages

Scroll/Zoom	100%

производитель	IMP [IMP, Inc]

домашняя страница	http://www.ds-imp.com.cn/index.asp

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4 / 6 page

IMP528

408-432-9100/www.impweb.com

–

VDD

RSW-OSC

REL-OSC

GND

IMP528

2.7M

Ω

REL

910k

Ω

220

µH1

VIN = 3.0V

0.1

µF2

FDLL400

LEN3

EL lamp

10nF

(3 in2 lamp)

Note:

1. Murata part # LQH4N221K04 (DC resistance <5

Ω)

2. Larger values may be required depending upon supply impedance.

3. EN is connected to VDD to enable and to GND to disable.

528_03.eps

10nF

200V

RSW

Figure 1. 3.0V Application

Test and Application Circuit, 3.0V

Figure 1 shows the IMP528 configured to drive an EL lamp with a

3.0V input.

Dual Supply Operation with 1.5V Battery

The IMP528 can also be operate from a single battery cell when a

regulated voltage higher than 2.0V is also available. This dual

supply configuration, shown in Figure 2, uses the regulated

voltage to operate the IMP528 while the energy for the high-

voltage boost circuit comes from the battery.

–

EN2

VDD

RSW-OSC

REL-OSC

GND

IMP528

REL

Regulated Voltage

(2.0V to 6.5V)

RSW

VIN

Battery

Voltage

0.1

µF1

FDLL400

EL lamp

528_04.eps

1. Larger values may be required depending upon supply impedance.

2. EN is connected to VDD to enable and to GND to disable.

10nF

200V

Figure 2. Dual Supply Operation

Application Information

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