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(R)
SP4423
Electroluminescent Lamp Driver Low Power Applications
s 2.2V-5.0V Battery Operation s 50nA Maximum Standby Current s High Voltage Output 160 VPP typical s Internal Oscillator APPLICATIONS s PDAs s Cellular Phones s Remote Controls s 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 SOIC packages. For delivery in die form, please consult the factory.
HON VSS COIL EL2
1 2 3 4 SP4423
8 7 6 5
CAP 2 CAP 1 VDD EL1
Block Diagram
SP4423DS/14 SP4423Electroluminescent Lamp Driver (c) Copyright 2000 Sipex Corporation
1
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 HON (pin1).........................................-0.5V to (VDD+0.5V) COIL (pin3)..............................................................60mA Lamp Outputs..............................................................................230VPP Storage Temperature....................................................-65C to +150C
Power Dissipation Per Package 8-pin NSOIC (derate 6.14mWoC above +70oC)..................500mW 8-pin SOIC (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.
SPECIFICATIONS
PARAMETER Supply Voltage, VDD Supply Current, ICOIL+IDD Coil Voltage, VCOIL HON Input Voltage, VHON LOW: EL off HIGH: EL on HON Current, EL on VDD -0.25 VDD-0.25 0 VDD 25 50 10 0.3 MIN. 2.2 TYP. 3.0 5 12
(T= 25C; VDD = 3.0V; Lamp Capacitance = 6000pF; Coil = 20 mH (RS = 70); COSC = 150pF unless otherwise noted)
MAX. 6.0 12 40 6.0
UNITS V mA V
CONDITIONS
VDD=3.0V, VHON=3.0V VDD=6.0V, VHON=6.0V
0.25V VDD+0.25 60 120 200 1
V
A nA A
VHON=VDD=3.0V VHON=VDD=6.0V VDD=3.0V, VHON=0V VDD=6.0V, VHON=0V
Shutdown Current, ISD=ICOIL+IDD INDUCTOR DRIVE Coil Frequency, fCOIL=fLAMPx32 Coil Duty Cycle Peak Coil Current, IPK-COIL EL LAMP OUTPUT EL Lamp Frequency, fLAMP Peak to Peak Output Voltage 200 225 110
9.6 75 60
kHz % mA Guaranteed by design.
300 300 150
400 450
Hz VPP
VDD=3.0V VDD=6.0V
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:
VDD CAP 1
PAD
EL1 EL2 COIL VSS HON CAP2 CAP1 VDD
X
556.5 556.2 -19.5 -568.0 -549.0 -549.0 -568.0 -349.0
Y
179.0 -151.0 -517.0 -517.0 -256.5 93.5 -516.5 517.0
EL 1 CAP 2 EL 2
HON
SP4423 537A VSS
SP4423DS/14
COIL
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).
SP4423 Electroluminescent Lamp Driver (c) Copyright 2000 Sipex Corporation
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PIN DESCRIPTION
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 OSC and lamp output voltage. In general, increasing the COSC capacitor will increase the lamp output voltage and decrease the lamp frequency. The suggested oscillator frequency is 64kHz (COSC=150pF). The oscillator output is internally divided to create two internal control signals, fCOIL and fLAMP. The oscillator output is internally divided down by 8 flip flops; a 64kHz signal 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 fCOIL/f LAMP will always equal 32.
1 2 3 4
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 VDD to pin 3. 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 COSC. Pin 8 - Cap2- Capacitor input 2, connect to COSC.
SP4423
0.1F VDD 6 VDD
COSC = 150pF
VBATTERY
20mH/70 1 HON 3 Coil
7
OSC Cap1 Cap2 fCOIL
SCR1 SCR2
8
Q
fLAMP FF1 FF2
Q
fLAMP EL2 4 EL1 5
VSS 2
EL Lamp
SP4423 Schematic
SP4423DS/14 SP4423Electroluminescent Lamp Driver (c) Copyright 2000 Sipex Corporation
3
The on-chip oscillator of the SP4423 can be overdriven with an external clock source by removing the COSC capacitor and connecting a clock source to pin 8 (Cap 2). The clock should 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. The coil is an external component connected from VBATTERY to pin 3 of the SP4423. Energy is stored in the coil according to the equation EL=1/2LI2, 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 current in the inductor is zero and the entire supply voltage (minus the VSAT of the switch) is across the inductor. The current in the inductor will then 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=VBATTERYIRL-VSAT. Since the voltage across the inductor is decreasing, the current ramp-rate also decreases 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) in the coil is set by the design and manufacturer of the coil. If the parameters of the application such as VBATTERY, L, RL or tON cause the current in the coil to increase beyond its rated ISAT, excessive heat will be generated and the power efficiency will decrease with no additional light output. The Sipex SP4423 is final tested using a 20mH/70 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 = VBATTERY. VBATTERY should not exceed max coil current specification. The majority of the current goes through the coil and is typically much greater than IDD. The fCOIL signal controls a switch that connects the end of the coil at pin 3 to ground or to open circuit. The fCOIL signal is a 75% duty cycle signal, switching at 1/8 the oscillator frequency. For a 64kHz oscillator fCOIL is 8kHz. During the time when the fCOIL signal is high, the coil is
SP4423DS/14
connected from VBATTERY to ground and a charged magnetic field is created in the coil. During the low part of fCOIL, the ground connection is switched open, the field collapses and the energy in the inductor is forced to flow toward the high voltage H-bridge switches. fCOIL will 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 shorter (see Figure 1 on page 9). 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 fLAMP signal which is the oscillator frequency divided by 256. For a 64kHz oscillator, fLAMP=250Hz. 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. 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.
(c) Copyright 2000 Sipex Corporation
SP4423 Electroluminescent Lamp Driver
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.
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).
9mH/35
HON=VDD=ON HON=0V=OFF VIN=3V
COSC=100pF HON VSS Coil EL2 Cap2 Cap1 VDD EL1 SP4423 EL Lamp 0.1F Low ESR Decoupling Capacitor
+ -
NOTE: Keep coil as close to the SP4423 as possible
NOTE: Keep high voltage traces short and away from VDD and clock lines
Typical SP4423 Application Circuit
20mH/70
HON=VDD=ON HON=0V=OFF VIN=3V
COSC=150pF HON VSS Coil EL2 Cap2 Cap1 VDD EL1 SP4423 100 6nF 0.1F Low ESR Decoupling Capacitor
+ -
NOTE: Keep coil as close to the SP4422A as possible
NOTE: Keep high voltage traces short and away from VDD and clock lines
Typical SP4423 Test Circuit
SP4423DS/14
SP4423Electroluminescent Lamp Driver
(c) Copyright 2000 Sipex Corporation
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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.
800
Lamp Frequency vs. COSC
Coil Frequency (kHz)
Lamp Frequency (Hz)
700 600 500 400 300 200 100 0 0 50 100 150 200 250 COSC (pF) 300 350 400 X X X X X Inductors Coil = 9/35 Coil = 5/18 Coil = 3/10 X Coil = 1/14
20.0 18.0 16.0 14.0 12.0 10.0 0.8 0.6 0.4 0.2 0.0 0 50
Coil Frequency vs. COSC
X X X Inductors X X Coil = 9/35 Coil = 5/18 Coil = 3/10 X Coil = 1/14 400
100
150
200 COSC (pF)
250
300
350
Lamp = 1sq. in., VDD = 3.0V
Lamp = 1sq. in., VDD = 3.0V
45 40 35
ITOTAL vs. COSC
X X X X Inductors Coil = 9/35 Coil = 5/18 Coil = 3/10 X Coil = 1/14 0 50 100 150 200 250 COSC (pF) 300 350 400 X X 14 12 10
ITOTAL vs. VDD over Temperature
ITOTAL (mA)
ITOTAL (mA)
30 25 20 15 10 5 0
8 6 4 2 0 2.0 2.5 3.0 3.5 4.0 VDD (V) 4.5 5.0 5.5 6.0 Temperature (oC) 0C 25 C 75 C
O O O
Lamp = 1sq. in., VDD = 3.0V
Coil = 20mH/70 ohms, COSC = 150pF
VPEAK vs. COSC
250
160 140 120
VPEAK vs. VDD over Temperature
VPEAK (V)
150 100 50 0 0
X
X
X
X
X
X
Inductors Coil = 9/35 Coil = 5/18 Coil = 3/10 X Coil = 1/14
VPEAK (V)
200
100 80 60 40 20 0 2.0 2.5 3.0 3.5 4.0 VDD (V) 4.5 5.0 5.5
Temperature (oC) 0C 25 C 75 C
O O O
6.0
50
100
150
200 250 COSC (pF)
300
350
400
Lamp = 1sq. in., VDD = 3.0V
Coil = 20mH/70 ohms, COSC = 150pF
16 14
Light vs. COSC
Lamp Frequency (Hz)
Lamp Frequency vs. VDD over Temperature
350 300 250 200 150 100 50 0 2.0 2.5 3.0 3.5 4.0 VDD (V) 4.5 5.0 5.5 6.0 Temperature (oC) 0C 25 C 75 C
O O O
Light (FtL)
12 10 8 6 4 2 0 0 50 100 150 200 COSC (pF) 250 300 350 400 X X X X X X Inductors Coil = 9/35 Coil = 5/18 Coil = 3/10 X Coil = 1/14
Lamp = 1sq. in., VDD = 3.0V
Coil = 20mH/70 ohms, COSC = 150pF
SP4423DS/14
SP4423 Electroluminescent Lamp Driver
(c) Copyright 2000 Sipex Corporation
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Lamp Frequency vs. Lamp Size
250 800
Lamp Frequency vs. Lamp Size
Lamp Frequency (Hz)
700 600 500 400 300 200 100 Osc Cap COSC = 50 COSC = 75 COSC = 100 COSC = 180 COSC = 220 COSC = 360
Lamp Frequency (Hz)
200 150 100 Supply (V) VDD = 2 VDD = 3 VDD = 4 VDD = 5 VDD = 6
50 0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Square Inches
0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Square Inches
COSC = 220pF, Coil = 9mH/35 ohms
VDD = 3.0V, Coil = 9mH/35 ohms
ITOTAL vs. Lamp Size
30 25 20 Supply (V) VDD = 2 VDD = 3 VDD = 4 VDD = 5 VDD = 6 16 14 12
ITOTAL vs. Lamp Size
Osc Cap COSC = 50 COSC = 75 COSC = 100 COSC = 180 COSC = 220 COSC = 360
ITOTAL (mA)
15 10 5 0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Square Inches
ITOTAL (mA)
10 8 6 4 2 0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Square Inches
COSC = 220pF, Coil = 9mH/35 ohms
VDD = 3.0V, Coil = 9mH/35 ohms
VPEAK vs. Lamp Size
160 140 120 100 Supply (V) VDD = 2 VDD = 3 VDD = 4 VDD = 5 VDD = 6 160 140 120 100
VPEAK vs. Lamp Size
Osc Cap COSC = 50 COSC = 75 COSC = 100 COSC = 180 COSC = 220 COSC = 360
VPEAK
VPEAK
80 60 40 20 0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Square Inches
80 60 40 20 0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Square Inches
COSC = 220pF, Coil = 9mH/35 ohms
VDD = 3.0V, Coil = 9mH/35 ohms
Light vs. Lamp Size
14 12 10 Supply (V) 8 6 4 2 0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Square Inches VDD = 2 VDD = 3 VDD = 4 VDD = 5 VDD = 6 14 12 10
Light vs. Lamp Size
Osc Cap COSC = 50 COSC = 75 COSC = 100 COSC = 180 COSC = 220 COSC = 360
Light (FtL)
Light (FtL)
8 6 4 2 0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Square Inches
COSC = 220pF, Coil = 9mH/35 ohms
VDD = 3.0V, Coil = 9mH/35 ohms
SP4423DS/14
SP4423Electroluminescent Lamp Driver
(c) Copyright 2000 Sipex Corporation
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900 Lamp Frequency (Hz) 800 700 600 500 400 300 200 X 100 0 2.0 2.5
Lamp Frequency vs. VDD
Oscillator Cap COSC = 50 COSC = 75 COSC = 100 X COSC = 180 COSC = 220 COSC = 360
X
X
X
X
3.0
3.5
4.0 Volts
4.5
5.0
5.5
6.0
Lamp = 1sq. in., Coil = 9mH/35 ohms
ITOTAL vs. VDD
40 35 30 ITOTAL (mA) 25 20 15 10 5 0 2.0 2.5 3.0 3.5 4.0 4.5 VDD (Volts) 5.0 5.5 6.0 X X X X X Oscilltor Cap COSC = 50 COSC = 75 COSC = 100 X COSC = 180 COSC = 220 COSC = 360
Lamp = 1sq. in., Coil = 9mH/35 ohms
160 140 120 VPEAK (V) 100 80 60 X 40 20 0 2.0 2.5 3.0 X
VPEAK vs. VDD
X X X Oscillator Cap COSC = 50 COSC = 75 COSC = 100 X COSC = 180 COSC = 220 COSC = 360
3.5
4.0 4.5 VDD (Volts)
5.0
5.5
6.0
Lamp = 1sq. in., Coil = 9mH/35 ohms
25 20 Light (FtL) 15
Light vs. VDD
Oscillator Cap X X X COSC = 50 COSC = 75 COSC = 100 X COSC = 180 COSC = 220 COSC = 360
10 X 5 0 2.0 2.5 3.0 3.5 4.0 4.5 VDD (Volts) 5.0 5.5 6.0
Lamp = 1sq. in., Coil = 9mH/35 ohms
SP4423DS/14
SP4423 Electroluminescent Lamp Driver
(c) Copyright 2000 Sipex Corporation
8
VPEAK=80V (typical)
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 VPP=160V (typical) -EL2 Output
Differential Representation EL12.
Figure 4. EL differential output waveform of the EL1 and EL2 outputs
SP4423DS/14
SP4423Electroluminescent Lamp Driver
(c) 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: 85-2695-1842 Mark Technologies: North American Stocking distributor for Sankyo and CTC Ph: 905-891-0165 Fax: 905-891-8534 Model Numbers: CH5070AS-203K-006 (20mH, 65) Sipex Number: S51208-M-1021-Sipex
HITACHI METALS Ltd. Japan Ph: 3-3284-4936 Fax: 3-3287-1945 HITACHI METALS Singapore Ph: 65-222-3077 Fax: 65-222-5232 Part Numbers: MD735L902B (9mH + 20% 41) MD735L502A (5mH + 20% 19.8) Toko Inc. Japan Ph: 03-3727-1161 Fax: 03-3727-1176 Toko America Inc. USA Ph: 847-297-0070 Fax: 847-699-7864 Toko Inc. Singapore Ph: 255-4000 Fax: 250-8134 Toko Germany Ph: 49-7156-96-060 Fax: 49-7156-96-06-26 Toko Korea Ph: 0551-50-5500 Fax: 0551-93-1110 Toko France Ph: 01-4557-4465 Fax: 01-4554-2837 Toko Hong Kong Ph: 2342-8131 Fax: 2341-9570 muRata Hong Kong Ph: 85-2237-6389-8 Fax: 85-2237-5556-55 Part Numbers: LQN6C472M04 (4.7mH, 35) LQN6C103M04 (10mH, 80) Coilcraft Hong Kong Ph: 852-770-9428 Fax: 852-770-0729
.175 MAX 4,45
25 2.0
2.5
6.5 Max
9.0 Max
(All dimensions in mm)
HITACHI METALS Hong Kong Ph: 852-2724-4183 Fax: 852-2311-2093 HITACHI METALS Chicago, IL Ph: 847-364-7200 Fax: 847-364-7279
6.8 0.3
7.0 0.5
3.3 0.3
6.0 0.3
(All Dimensions in mm)
4.4 Max
2.75 Max 4.4 (All Dimensions in mm)
Part Numbers: Toko U.K. 667MA-472N (4.7mH, 13) Ph: 1753-854057-9 Fax: 1753-8503-23 muRata USA Ph: 770-436-1300 Fax: 770-436-3030 muRata Europe Ph: 49-9116-6870 Fax: 49-1166-8722-5 Coilcraft USA Ph: 847-639-6400 Fax: 847-639-1469 Coilcraft Europe Ph: 44-01236-730595 Fax: 44-01236-730627 Part Numbers: DS1608C-106 (10mH, 32) muRata Taiwan Ph: 88-6429-1415-1 Fax: 88-6442-5292-9 muRata Singapore Ph: 65-758-4233 Fax: 65-753-6181 Coilcraft Taiwan Ph: 886-2-264-3646 Fax: 886-2-270-0294 Coilcraft Singapore Ph: 65-296-6933 Fax: 465-296-4463 #382
5.0 0.3
5.0 0.3
5.7 0.3
(All Dimensions in mm)
.260 6,60 MAX
4.7 0.3
.115 2,92 MAX Magnetically Shielded
(All Dimensions in mm)
SP4423DS/14
SP4423 Electroluminescent Lamp Driver
(c) Copyright 2000 Sipex Corporation
10
EL polarizers/transflector manufacturers
Nitto Denko San Jose, CA Phone: (510) 445-5400 Astra Products Baldwin, NJ Phone: (516) 223-7500 Fax: (516) 868-2371
EL Lamp manufacturers
Metro Mark/Leading Edge Minnetonka, MN Phone: (800) 680-5556 Phone: (612) 912-1700 Midori Mark Ltd. 1-5 Komagata 2-Chome Taita-Ku 111-0043 Japan Phone: 81-03-3848-2011 Luminescent Systems Inc. (LSI) Lebanon, NH Phone: (603) 643-7766 Fax: (603) 643-5947 NEC Corporation Tokyo, Japan Phone: (03) 3798-9572 Fax: (03) 3798-6134 Seiko Precision Tokyo, Japan Phone: (03) 5610-7089 Fax: .) 5610-7177 Gunze Electronics 2113 Wells Branch Parkway Austin, TX 78728 Phone: (512) 752-1299 Fax: (512) 252-1181
SP4423DS/14
SP4423Electroluminescent Lamp Driver
(c) Copyright 2000 Sipex Corporation
11
All package dimensions in inches 8-pin NSOIC
0.0256 BSC 0.012 0.003 0.189/0.197 0.0965 0.003 0.053/0.069 R .003
8-pin SOIC
12.0 4 0.008 0 - 6 0.006 0.006 0.006 0.006
0.150/0.157
SP4423ACN
0.228/0.244
SP4423ACU
0.118 0.004
0.16 0.003 12.0 4 0.01 0.0215 0.006 0.037 Ref
0.014/0.019 0.050 BSC
1
0.020 0.020 1 2
3.0 3
0.116 0.004
0.034 0.004 0.040 0.003 0.116 0.004
0.013 0.005 0.118 0.004
0.004 0.002
0.118 0.004
95 SP4423ACN per tube, no minimum quantity
50 SP4423ACU per tube
P
W
NSOIC-8 13" reels: P=8mm, W=12mm SOIC-8 13" reels: P=8mm, W=12mm Pkg. ACN ACU Minimum qty per reel 500 500 Standard qty per reel 2500 2500 Maximum qty per reel 3000 3000
SP4423DS/14
SP4423 Electroluminescent Lamp Driver
(c) Copyright 2000 Sipex Corporation
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ORDERING INFORMATION
Model Temperature Range Package Type SP4423CN . ............................................. 0C to +70C ........................................... 8-Pin NSOIC SP4423CU . ............................................. 0C to +70C ........................................... 8-Pin SOIC SP4423CX ............................................... 0C to +70C .......................................................... Die SP4423NEB ............................................................................................ NSOIC Evaluation Board SP4423UEB ............................................................................................ SOIC 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: (978) 667-8700 FAX: (978) 670-9001 e-mail: sales@sipex.com Sales Office 233 South Hillview Drive Milpitas, CA 95035 TEL: (408) 934-7500 FAX: (408) 935-7600
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
(c) Copyright 2000 Sipex Corporation
13

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