Datasheet SP4423CX, SP4423NEB, SP4423UEB, SP4423CN, SP4423CU Datasheet (Sipex Corporation)

®

SP4423

Electroluminescent Lamp Driver

Low P ower Applications

■ 2.2V-5.0V Battery Operation

■ 50nA Maximum Standby Current

■ High Voltage Output 160 VPP typical

■ Internal Oscillator

APPLICATIONS

■ PDAs

■ Cellular Phones

■ Remote Controls

■ Hand Held Computers

DESCRIPTION

The SP4423 is a high voltage output DC-AC converter that can operate from a 2.2V-6.0V
power supply. The SP4423 is capable of supplying up to 200 VPP signals, making it ideal for
driving electroluminescent lamps. The device features 10nA (typical) standby current, for use
in low power portable products. An inductor is used to generate the high voltage, and an
external capacitor is used to select the oscillator frequency. The SP4423 is offered in
an 8-pin narrow SOIC and 8-pin µSOIC packages. For delivery in die form, please consult
the factory.

HON

V

SS

COIL

EL2

Block Diagram

SP4423DS/14 SP4423Electroluminescent Lamp Driver © Copyright 2000 Sipex Corporation

1
2

3
4

SP4423

1

8
7

6
5

CAP 2
CAP 1

V

DD

EL1

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.

VDD............................................................................................................7.0V

Input Voltages/Currents

Lamp Outputs..............................................................................230V

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

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

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

PP

SPECIFICATIONS

(T= 25°C; VDD = 3.0V; Lamp Capacitance = 6000pF; Coil = 20 mH (RS = 70Ω); C

RETEMARAP.NIM.PYT.XAMSTINUSNOITIDNOC

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DD

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2.20.30.6V
5

21

V

DD

52.0-

V

DD

0

52.0-

V

V

DD

05
01

3.0

002
522

003
003

Power Dissipation Per Package

8-pin NSOIC (derate 6.14mWoC above +70oC)..................500mW

8-pin µSOIC (derate 4.85mWoC above +70oC)...................390mW

The information furnished herein by Sipex has been carefully reviewed
for accuracy and reliability. Its application or use, however, is solely the
responsibility of the user. No responsibility for the use of this information
is assumed by Sipex, and this information shall not explicitly or implicitly
become part of the terms and conditions of any subsequent sales
agreement with Sipex. Specifications are subject to change without
prior notice. By the sale or transfer of this information, Sipex assumes
no responsibility for any infringement of patents or other rights of third
parties which may result from its use. No license or other proprietary
rights are granted by implication or otherwise under any patent or
patent rights of Sipex Corporation.

= 150pF unless otherwise noted)

OSC

21
04

0.6

V52.0

52.0+

DD

06

021
002

1

V

Am

V

DD
DD

V,V0.3=

NOH

V,V0.6=

NOH

V0.3=
V0.6=

V

V

V=

V

µA

An

µA

NOH

V

NOH

V

DD

V

DD

V0.3=

DD

V=

V0.6=

DD

V,V0.3=

V0=

NOH

V,V0.6=

V0=

NOH

06Am.ngisedybdeetnarauG

004
054

V

V0.3=

DD

zH

V

V0.6=

DD

PP

This data sheet specifies environmental parameters, final test conditions and limits as well suggested operating conditions.
For applications which require performance beyond the specified conditions and or limits please consult the factory.

Bonding Diagram:

V

DD

CAP 1

CAP 2

HON

V

SP4423DS/14 SP4423 Electroluminescent Lamp Driver © Copyright 2000 Sipex Corporation

COIL

SS

SP4423

EL 1

EL 2

537A

PAD X Y

EL1 556.5 179.0
EL2 556.2 -151.0
COIL -19.5 -517.0

V

SS

HON -549.0 -256.5
CAP2 -549.0 93.5
CAP1 -568.0 -516.5

V

DD

NOTES:

1. Dimensions are in Microns unless otherwise noted.

2. Bonding pads are 125x125 typical

3. Outside dimensions are maximum, including scribe area.

4. Die thickness is 10 mils +/- 1.

5. Pad center coordinates are relative to die center.

6. Die size 1447 x 1346 ( 57 x 53 mils).

-568.0 -517.0

-349.0 517.0

2

PIN DESCRIPTION

1
2
3
4

SP4423

8
7
6
5

Pin 1 – HON- Enable for driver operation,
high = active; low = inactive.

Pin 2 – VSS- Power supply common, connect to
ground.

Pin 3 – Coil- Coil input, connect coil from V
to pin 3.

DD

Pin 4 – Lamp- Lamp driver output2, connect to
EL lamp.

Pin 5 – Lamp- Lamp driver output1, connect to
EL lamp.

Pin 6 – VDD- Power supply for driver, connect to
system VDD.

Pin 7 – Cap1- Capacitor input 1, connect to C
Pin 8 – Cap2- Capacitor input 2, connect to C

OSC

OSC

THEORY OF OPERATION

The SP4423 is made up of three basic circuit
elements, an oscillator, coil, and switched
H-bridge network. The oscillator provides the
device with an on-chip clock source used to
control the charge and discharge phases for the
coil and lamp. An external capacitor connected
between pins 7 and 8 allows the user to vary the
oscillator frequency from 32kHz to 400kHz.
The graphs on page 6 show the relationship
between C
In general, increasing the C
increase the lamp output voltage and decrease

and lamp output voltage.

OSC

capacitor will

OSC

the lamp frequency.
The suggested oscillator frequency is 64kHz

(C

=150pF). The oscillator output is internally

OSC

divided to create two internal control signals,
f

and f

COIL

divided down by 8 flip flops; a 64kHz signal

. The oscillator output is internally

LAMP

will be divided into 8 frequencies; 32, 16, 8, 4,
2, 1, 0.5, and 0.25 Hz. The 3rd flip flop output
(8kHz) is used to drive the coil (see Figure 2 on
page 9) and the 8th flip flop output (250Hz) is
used to drive the lamp. Although the oscillator
frequency can be varied to optimize the lamp
output, the ratio of f
equal 32.

.

COIL/fLAMP

.

will always

V

BATTERY

0.1µF

= 150pF

OSC

C

V

DD

6
V

OSC

7

Cap1

Cap2

8

FF1 FF2

20mH/70Ω

f

f

f

COIL

LAMP

LAMP

Coil

3

EL Lamp

SCR1

EL2 EL1

SCR2

4

5

1

DD

V

SS

2

HON

Q

Q

SP4423 Schematic

SP4423DS/14 SP4423Electroluminescent Lamp Driver © Copyright 2000 Sipex Corporation

3

The on-chip oscillator of the SP4423 can be
overdriven with an external clock source by
removing the C
clock source to pin 8 (Cap 2). The clock should

capacitor and connecting a

OSC

have a 50% duty cycle and range fromVDD-1V to
ground. An external clock signal may be
desirable in order to synchronize any parasitic
switching noise with the system clock. The
maximum external clock frequencies that can
be supplied is 400kHz.

connected from V
magnetic field is created in the coil. During the
low part of f
switched open, the field collapses and the

COIL

energy in the inductor is forced to flow toward
the high voltage H-bridge switches. f
send 16 of these charge pulses to the lamp, each
pulse increases the voltage drop across the lamp
in discrete steps. As the voltage potential
approaches its maximum, the steps become

to ground and a charged

BATTERY

, the ground connection is

will

COIL

shorter (see Figure 1 on page 9).

The coil is an external component connected from
V
in the coil according to the equation EL=1/2LI2,

to pin 3 of the

BATTERY

SP4423

. Energy is stored

where I is the peak current flowing in the inductor.
The current in the inductor is time dependent
and is set by the "ON" time of the coil switch:
I=(VL/L)tON, where VL is the voltage across the
inductor. At the moment the switch closes, the

The H-bridge consists of two SCR structures
that act as high voltage switches. These two
switches control the polarity of how the lamp is
charged. The SCR switches are controlled by
the f
divided by 256. For a 64kHz oscillator,
f

LAMP

signal which is the oscillator frequency

LAMP

=250Hz.
current in the inductor is zero and the entire supply
voltage (minus the V
inductor. The current in the inductor will then

of the switch) is across the

SAT

ramp up at a linear rate. As the current in the
inductor builds up, the voltage across the inductor
will decrease due to the resistance of the coil and
the "ON" resistance of the switch: VL=V
IRL-V
decreasing, the current ramp-rate also decreases

. Since the voltage across the inductor is

SAT

BATTERY

which reduces the current in the coil at the end of
tON the energy stored in the inductor per coil cycle
and therefore the light output. The other important
issue is that maximum current (saturation current)

When the energy from the coil is released, a high
voltage spike is created triggering the SCR
switches. The direction of current flow is
determined by which SCR is enabled. One full
cycle of the H-bridge will create 16 voltage
steps from ground to 80V (typical) on pins 4 and

­5 which are 180 degrees out of phase with each
other (see Figure 3 on page 9). A differential
representation of the outputs is shown in Figure
4 on page 9.

To minimize AC interference it is
advisable to use a decoupling filter capacitor
between VDD and ground.

in the coil is set by the design and manufacturer of
the coil. If the parameters of the application such
as V
coil to increase beyond its rated I
heat will be generated and the power efficiency

, L, RL or tON cause the current in the

BATTERY

, excessive

SAT

will decrease with no additional light output. The

Sipex

SP4423

is final tested using a 20mH/70Ω

coil from CTC. For suggested coil sources see
page 10.

The supply VDD can range from 2.2 to 6.0V. It is not
necessary that Vdd = V
exceed max coil current specification. The majority

BATTERY

. V

BATTERY

should not

of the current goes through the coil and is typically
much greater than IDD.

The f
the end of the coil at pin 3 to ground or to open
circuit. The f
signal, switching at 1/8 the oscillator frequency.
For a 64kHz oscillator f
time when the f

SP4423DS/14 SP4423 Electroluminescent Lamp Driver © Copyright 2000 Sipex Corporation

signal controls a switch that connects

COIL

signal is a 75% duty cycle

COIL

is 8kHz. During the

COIL

signal is high, the coil is

COIL

Electroluminescent Technology

What is electroluminescence?

An EL lamp is basically a strip of plastic that is
coated with a phosphorous material which emits
light (fluoresces) when a high voltage (>40V)
which was first applied across it, is removed or
reversed. Long periods of DC voltages applied
to the material tend to breakdown the material
and reduce its lifetime. With these considerations
in mind, the ideal signal to drive an EL lamp is
a high voltage sine wave. Traditional approaches
to achieving this type of waveform included
discrete circuits incorporating a transformer,
transistors, and several resistors and capacitors.
This approach is large and bulky, and cannot be
implemented in most hand held equipment. Sipex
now offers low power single chip driver circuits
specifically designed to drive small to medium
sized electroluminescent panels. All that is
required is one external inductor and capacitor.

4

Electroluminescent backlighting is ideal when
used with LCD displays, keypads, or other backlit
readouts. Its main use is to illuminate displays in
dim to dark conditions for momentary periods
of time. EL lamps typically consume less than
LEDs or incandescent bulbs making them ideal
for battery powered products. Also, EL lamps
are able to evenly light an area without creating
"hot spots" in the display.

HON=V

=ON

DD

=3V

V

IN

9mH/35Ω

NOTE:
Keep coil as close to the
SP4423 as possible

HON=0V=OFF

+

–

Typical SP4423 Application Circuit

HON

V

Coil

EL2

The amount of light emitted is a function of the
voltage applied to the lamp, the frequency at
which it is applied, the lamp material used and
its size. There are many variables which can be
optimized for specific applications. Sipex
supplies characterization charts to aid the
designer in selecting the optimum circuit
configuration (see page 6).

C

=100pF

OSC

Cap2

SS

SP4423

Cap1

V

DD

EL1

0.1µF Low ESR
Decoupling
Capacitor

EL Lamp

NOTE:
Keep high voltage traces
short and away from V
and clock lines

DD

HON=V

=ON

V

=3V

IN

20mH/70Ω

NOTE:
Keep coil as close to the
SP4422A as possible

+

–

DD

HON=0V=OFF

HON

V

SS

Coil

EL2

SP4423

Cap2

Cap1

V

DD

EL1

C

=150pF

OSC

NOTE:
Keep high voltage traces
short and away from V
and clock lines

0.1µF Low ESR
Decoupling
Capacitor

100Ω

DD

6nF

Typical SP4423 Test Circuit

SP4423DS/14 SP4423Electroluminescent Lamp Driver © Copyright 2000 Sipex Corporation

5

The following performance curves are intended to give the designer a relative scale from which to optimize
specific applications. Absolute measurements may vary depending upon the brand of components chosen.

Lamp Frequency vs. C

X

X

X

X

0 50 100 150 200 250 300 350 400

(pF)

C

OSC

Lamp Frequency (Hz)

800
700
600
500
400
300
200
100

0

Lamp = 1sq. in., VDD = 3.0V

I

vs. C

TOTAL

45
40
35
30

(mA)

25
20

TOTAL

I

15
10

5
0

0 50 100 150 200 250 300 350 400

X

X

X

OSC

X

X

(pF)

C

OSC

Lamp = 1sq. in., VDD = 3.0V

V

vs. C

PEAK

250
200

(V)

150

PEAK

V

100

50

0

X

X

X

0 50 100 150 200 250 300 350 400

OSC

X

X

(pF)

C

OSC

Lamp = 1sq. in., VDD = 3.0V

OSC

Inductors

Coil = 9/35

X

Coil = 5/18
Coil = 3/10
Coil = 1/14

X

20.0

18.0

16.0

14.0

12.0

10.0

0.8

0.6

0.4

0.2

Coil Frequency (kHz)

0.0
0 50 100 150 200 250 300 350 400

Coil Frequency vs. C

X

X

X

C

OSC

(pF)

OSC

X

Inductors

X

Coil = 9/35
Coil = 5/18
Coil = 3/10
Coil = 1/14

X

Lamp = 1sq. in., VDD = 3.0V

I

vs. VDD over Temperature

X

Inductors

Coil = 9/35
Coil = 5/18
Coil = 3/10
Coil = 1/14

X

14
12
10

8

(mA)

6

TOTAL

4

I

2
0

2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0

Coil = 20mH/70 ohms, C

160
140
120

100

(V)

Inductors

X

Coil = 9/35
Coil = 5/18
Coil = 3/10
Coil = 1/14

X

80
60

PEAK

V

40
20

0

2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0

Coil = 20mH/70 ohms, C

TOTAL

(V)

V

DD

= 150pF

OSC

V

vs. VDD over Temperature

PEAK

(V)

V

DD

= 150pF

OSC

Temperature (oC)

0OC

O

C

25

O

C

75

Temperature (

0OC

O

C

25

O

C

75

o

C)

Lamp Frequency vs. VDD over Temperature

350
300
250
200
150
100

50

Lamp Frequency (Hz)

0

2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0

(V)

V

DD

OSC

= 150pF

Temperature (

0OC
25
75

O

C

O

C

X

Light vs. C

X

16
14
12
10

X

8

Light (FtL)

6
4
2
0

0 50 100 150 200 250 300 350 400

OSC

X

X

(pF)

C

OSC

Lamp = 1sq. in., VDD = 3.0V

Inductors

Coil = 9/35
Coil = 5/18
Coil = 3/10

X

Coil = 1/14

X

Coil = 20mH/70 ohms, C

SP4423DS/14 SP4423 Electroluminescent Lamp Driver © Copyright 2000 Sipex Corporation

6

o

C)

Lamp Frequency vs. Lamp Size

250

200

150

100

50

Lamp Frequency (Hz)

0

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0

C

= 220pF, Coil = 9mH/35 ohms

OSC

30

25

20

15

(mA)

TOTAL

10

I

5

0

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0

C

= 220pF, Coil = 9mH/35 ohms

OSC

160
140
120
100

80

PEAK

V

60
40
20

0

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0

C

= 220pF, Coil = 9mH/35 ohms

OSC

Square Inches

I

vs. Lamp Size

TOTAL

Square Inches

V

vs. Lamp Size

PEAK

Square Inches

Supply (V)

VDD = 2
VDD = 3
VDD = 4
VDD = 5
VDD = 6

Supply (V)

VDD = 2
VDD = 3
VDD = 4
VDD = 5
VDD = 6

Supply (V)

VDD = 2
VDD = 3
VDD = 4
V
VDD = 6

Lamp Frequency vs. Lamp Size

800
700
600
500

400
300
200

Lamp Frequency (Hz)

100

0

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0

Square Inches

Osc Cap

C

= 50

OSC

C

= 75

OSC

C

= 100

OSC

C

= 180

OSC

C

= 220

OSC

C

= 360

OSC

VDD = 3.0V, Coil = 9mH/35 ohms

I

vs. Lamp Size

16
14
12
10

8

(mA)

6

TOTAL

I

4
2

0

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0

TOTAL

Square Inches

Osc Cap

C

= 50

OSC

C

= 75

OSC

C

= 100

OSC

C

= 180

OSC

C

= 220

OSC

C

= 360

OSC

VDD = 3.0V, Coil = 9mH/35 ohms

V

vs. Lamp Size

160
140
120
100

80

PEAK

V

= 5

DD

60
40
20

0

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0

PEAK

Square Inches

Osc Cap

C

= 50

OSC

C

= 75

OSC

C

= 100

OSC

C

= 180

OSC

C

= 220

OSC

C

= 360

OSC

VDD = 3.0V, Coil = 9mH/35 ohms

14
12
10

8
6

Light (FtL)

4
2
0

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0

C

= 220pF, Coil = 9mH/35 ohms

OSC

Light vs. Lamp Size

Square Inches

Supply (V)

VDD = 2
VDD = 3
VDD = 4
VDD = 5
VDD = 6

14
12
10

8
6

Light (FtL)

4
2

0

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0

VDD = 3.0V, Coil = 9mH/35 ohms

Light vs. Lamp Size

Square Inches

Osc Cap

C

= 50

OSC

C

= 75

OSC

C

= 100

OSC

C

= 180

OSC

C

= 220

OSC

C

= 360

OSC

SP4423DS/14 SP4423Electroluminescent Lamp Driver © Copyright 2000 Sipex Corporation

7

Lamp Frequency vs. V

X

X

2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5

X

Volts

Lamp Frequency (Hz)

900
800
700
600

500
400
300
200

100

0

Lamp = 1sq. in., Coil = 9mH/35 ohms

I

vs. V

TOTAL

40

DD

35
30
25

(mA)

20

TOTAL

15

I

10

X

5
0

2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5

X

V

DD

X

(Volts)

Lamp = 1sq. in., Coil = 9mH/35 ohms

V

vs. V

PEAK

DD

X

(V)
V

PEAK

160
140
120
100

X

80

X

60
40
20

0

2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5

V

DD

(Volts)

Lamp = 1sq. in., Coil = 9mH/35 ohms

DD

Oscillator Cap

X

XX

6.0

Oscilltor Cap

X

X

X

6.0

X

X

Oscillator Cap

X

6.0

C

= 50

OSC

C

= 75

OSC

= 100

C

OSC

C

= 180

OSC

C

= 220

OSC

= 360

C

OSC

C

= 50

OSC

= 75

C

OSC

C

= 100

OSC

C

= 180

OSC

C

= 220

OSC

C

= 360

OSC

C

= 50

OSC

C

= 75

OSC

= 100

C

OSC

C

= 180

OSC

C

= 220

OSC

C

= 360

OSC

25

Light vs. V

20

15

10

Light (FtL)

5

0

2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5

X

V

X

(Volts)

DD

DD

Oscillator Cap

C

= 50

OSC

C

X

X

= 75

OSC

= 100

C

OSC

C

= 180

X

OSC

C

= 220

OSC

= 360

C

OSC

6.0

Lamp = 1sq. in., Coil = 9mH/35 ohms

SP4423DS/14 SP4423 Electroluminescent Lamp Driver © Copyright 2000 Sipex Corporation

8

V

=80V (typical)

PEAK

EL1 output; 16 charge steps per half cycle

Figure 1. EL output voltage in discrete steps at EL1 output

16 coil pulses per half cycle; 74% duty cycle.

Figure 2. Voltage pulses released from the coil to the EL driver circuitry

EL1 Output

-EL2 Output

Figure 3. EL voltage waveforms from the EL1 and EL2 outputs

EL1 Output

-EL2 Output

Differential Representation EL12.

VPP=160V
(typical)

Figure 4. EL differential output waveform of the EL1 and EL2 outputs

SP4423DS/14 SP4423Electroluminescent Lamp Driver © Copyright 2000 Sipex Corporation

9

The coil part numbers presented in this data sheet have been qualified as being suitable for the SP4422A product.
Contact Sipex for applications assistance in choosing coil values not listed in this data sheet.

CTC Coils LTD Hong Kong
Ph: 85-2695-4889
Fax: [phone]

Mark Technologies:
North American Stocking
distributor for Sankyo and CTC
Ph: 905-891-0165
Fax: [phone]

Model Numbers: CH5070AS-203K-006 (20mH, 65Ω)
Sipex Number: S51208-M-1021-Sipex

HITACHI METALS Ltd. Japan
Ph: 3-3284-4936
Fax: [phone]

HITACHI METALS Singapore
Ph: 65-222-3077
Fax: [phone]

Part Numbers:
MD735L902B (9mH
MD735L502A (5mH + 20% 19.8Ω)

Toko Inc. Japan
Ph: 03-3727-1161
Fax: [phone]

Toko America Inc. USA
Ph: 847-297-0070
Fax: [phone]

Part Numbers:
667MA-472N (4.7mH, 13Ω)

+ 20% 41Ω)

Toko Inc. Singapore
Ph: 255-4000
Fax: [phone]

Toko Germany
Ph: 49-7156-96-060
Fax: [phone]

Toko U.K.
Ph: 1753-854057-9
Fax: [phone]

HITACHI METALS Hong Kong
Ph: 852-2724-4183
Fax: [phone]

HITACHI METALS Chicago, IL
Ph: 847-364-7200
Fax: [phone]

2.5

6.5 Max

Toko Korea
Ph: 0551-50-5500
Fax: [phone]

Toko France
Ph: 01-4557-4465
Fax: [phone]

Toko Hong Kong
Ph: 2342-8131
Fax: [phone]

6.8
±0.3

4.4

9.0 Max

3.3
±0.3

4.4 Max

25 ± 2.0

(All dimensions in mm)

7.0 ±0.5

6.0 ±0.3

(All Dimensions in mm)

2.75 Max

(All Dimensions in mm)

muRata USA
Ph: 770-436-1300
Fax: [phone]

muRata Europe
Ph: 49-9116-6870
Fax: [phone]

Coilcraft USA
Ph: 847-639-6400
Fax: [phone]

Coilcraft Europe
Ph: 44-01236-730595
Fax: [phone]

Part Numbers:
DS1608C-106 (10mH, 32Ω)

SP4423DS/14 SP4423 Electroluminescent Lamp Driver © Copyright 2000 Sipex Corporation

muRata Taiwan
Ph: 88-6429-1415-1
Fax: [phone]

muRata Singapore
Ph: 65-758-4233
Fax: [phone]

Coilcraft Taiwan
Ph: 886-2-264-3646
Fax: [phone]

Coilcraft Singapore
Ph: 65-296-6933
Fax: [phone] #382

muRata Hong Kong
Ph: 85-2237-6389-8
Fax: [phone]

Part Numbers:
LQN6C472M04 (4.7mH, 35Ω)
LQN6C103M04 (10mH, 80Ω)

Coilcraft Hong Kong
Ph: 852-770-9428
Fax: [phone]

.175

MAX

4,45

5.7 ±0.3

.260

MAX

6,60

Magnetically Shielded

(All Dimensions in mm)

5.0 ±0.35.0 ±0.3

4.7 ±0.3

(All Dimensions in mm)

.115

MAX

2,92

10

EL polarizers/transflector
manufacturers

Nitto Denko
San Jose, CA
Phone: [phone]

Astra Products
Baldwin, NJ
Phone: [phone]
Fax: [phone]

EL Lamp manufacturers

Metro Mark/Leading Edge
Minnetonka, MN
Phone: [phone]
Phone: [phone]

Midori Mark Ltd.
1-5 Komagata 2-Chome
Taita-Ku 111-0043 Japan
Phone: [phone]

Luminescent Systems Inc. (LSI)
Lebanon, NH
Phone: [phone]
Fax: [phone]

NEC Corporation
Tokyo, Japan
Phone: [phone]
Fax: [phone]

Seiko Precision
Tokyo, Japan
Phone: [phone]
Fax: .) 5610-7177

Gunze Electronics
2113 Wells Branch Parkway
Austin, TX 78728
Phone: [phone]
Fax: [phone]

SP4423DS/14 SP4423Electroluminescent Lamp Driver © Copyright 2000 Sipex Corporation

11

SP4423ACN

1

8-pin NSOIC

0.228/0.2440.150/0.157

0.014/0.019

All package dimensions in inches

0.189/0.197

0.053/0.069

0.050 BSC

0.020

0.0965
±0.003

0.020

SP4423ACU

1

2

0.0256
BSC

8-pin µSOIC

0.012

±0.003

0.16

±0.003

R .003

0.118

±0.004

12.0˚

12.0˚
±4˚

0.008
0˚ - 6˚

0.006

±0.006

0.006

±0.006

0.037
Ref

0.0215

±0.006

±4˚

0.01

3.0˚
±3˚

95 SP4423ACN per tube, no minimum quantity

0.116

±0.004

0.013
±0.005

0.118

±0.004

50 SP4423ACU per tube

0.004

±0.002

0.034

±0.004

0.040

±0.003

0.116

±0.004

0.118

±0.004

P

W

NSOIC-8 13" reels: P=8mm, W=12mm

µSOIC-8 13" reels: P=8mm, W=12mm

Pkg. Minimum qty per reel Standard qty per reel Maximum qty per reel

ACN 500 2500 3000
ACU 500 2500 3000

SP4423DS/14 SP4423 Electroluminescent Lamp Driver © Copyright 2000 Sipex Corporation

12

ORDERING INFORMATION

Model Temperature Range Package Type

SP4423CN . ............................................. 0˚C to +70˚C ........................................... 8-Pin NSOIC

SP4423CU . ............................................. 0˚C to +70˚C ........................................... 8-Pin µSOIC

SP4423CX ............................................... 0˚C to +70˚C .......................................................... Die

SP4423NEB............................................................................................NSOIC Evaluation Board

SP4423UEB............................................................................................ µSOIC Evaluation Board

Please consult the factory for pricing and availability on a Tape-On-Reel option.

Corporation

SIGNAL PROCESSING EXCELLENCE

Sipex Corporation
Headquarters and

Sales Office

22 Linnell Circle
Billerica, MA 01821
TEL: [phone]
FAX: [phone]
e-mail: [e-mail]

Sales Office

233 South Hillview Drive
Milpitas, CA 95035
TEL: [phone]
FAX: [phone]

Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the
application or use of any product or circuit described hereing; neither does it convey any license under its patent rights nor the rights of others.

SP4423DS/14 SP4423Electroluminescent Lamp Driver © Copyright 2000 Sipex Corporation

13