SP4426DS/01

SP4426 Electroluminescent Lamp Driver

© Copyright 1997 Sipex Corporation

2

SPECIFICATIONS

(T= 25

°C; V

PARAMETER

MIN.

TYP.

MAX.

UNIT

CONDITIONS

INPUT CHARACTERISTICS

Supply Voltage

2.2

3.0

6.0

Volts

Total Supply Current

8

15

mA

Vdd= 3.0V

±5%; Hon= 3.0V

15

50

mA

Vdd= 6.0V

±5%; Hon= 6.0V

150

Ω in series with coil

Quiescent Supply Current

10

200

nA

Vdd= 3.0V

±5%; Hon= 0V

0.3

1

µA

Vdd= 6.0V

±5%; Hon= 0V

150

Ω in series with coil

Clock Frequency

76.8

kHz

Cosc=150pF; Vdd = 3.0V, (f

Hon Voltage On

Vdd-.5

Vdd

Volts

Hon Current On

25

60

µA

Vdd = 3.0V

50

120

µA

Vdd = 6.0V

Hon Voltage Off

Vdd-2

Volts

Vdd = 3.0V

Vdd-3

Volts

Vdd = 6.0V

INDUCTOR DRIVE

Peak Current

60

mA

Pulse Rate

9.6

kHz

(f

Duty Cycle

94

%

LAMP OUTPUT

Differential Voltage

120

160

Vpp

Frequency

200

300

400

Hz

Vdd = 3.0V

225

300

450

Hz

Vdd = 6.0V

Lamp Capacitance

6000

pF

ABSOLUTE MAXIMUM RATINGS

These are stress ratings only and functional operation of the device at

these ratings or any other above those indicated in the operation sections

of the specifications below is not implied. Exposure to absolute maximum

rating conditions for extended periods of time may affect reliability.

V

Input Voltages/Currents

HON (pin1)..........................................-0.5V to (V

COIL (pin3)..............................................................60mA

Lamp Outputs.............................................................................250Vpp

Storage Temperature....................................................-65˚C to +150˚C

Power Dissipation.......................................................................200mW