SP4425CU datasheet(7/14 Pages) SIPEX

7 / 14 page

SP4425DS/20

SP4425 Electroluminescent Lamp Driver

Typical SP4425 Application Circuit

HON=VDD=ON

HON=0V=OFF

0.1

µF Low ESR

Decoupling

Capacitor

EL Lamp

5Ftl

1.5 sq.in.

4nF

NOTE:

Keep high voltage traces

short and away from VDD

and clock lines

HON

VDD

EL1

EL2

COSC

VSS

Coil

COSC =180pF

CINT=1800pF

SP4425

VIN=1.5V

NOTE:

Keep coil as close to

SP4425 as possible

IN4148

Pager Application

–

SP4425 1.5V Test Circuit

SP4425 3V Test Circuit

100

Ω

5Ftl

HON=VDD=ON

HON=0V=OFF

0.1

µF Low ESR

Decoupling

Capacitor

NOTE:

Keep high voltage traces

short and away from VDD

and clock lines

HON

VDD

EL1

EL2

COSC

VSS

Coil

COSC=180pF

CINT=1800pF

SP4425

VIN=+1.5V

NOTE:

Keep coil as close to

SP4425 as possible

IN4148

8.2nF

100

Ω

5Ftl

HON=VDD=ON

HON=0V=OFF

0.1

µF Low ESR

Decoupling

Capacitor

NOTE:

Keep high voltage traces

short and away from VDD

and clock lines

HON

VDD

EL1

EL2

COSC

VSS

Coil

COSC =180pF

Cint = 470pF

SP4425

VIN=3V

NOTE:

Keep coil as close to

SP4425 as possible

IN4148

4nF

–

SP4425CU Datasheet(PDF) 7 Page - Sipex Corporation

SP4425CU Datasheet(HTML) 7 Page - Sipex Corporation

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