® SP4422A Electroluminescent Lamp Driver ■ 2.2V-5.0V Battery Operation ■ 50nA Typical Standby Current ■ High Voltage Output 160 VPP typical ■ Internal Oscillator APPLICATIONS ■ PDAs ■ Cellular Phones ■ Remote Controls ■ Handheld Computers DESCRIPTION The SP4422A is a high voltage output DC-AC converter that can operate from a 2.2V-5.0V power supply. The SP4422A is capable of supplying up to 220 VPP signals, making it ideal for driving electroluminescent lamps. The device features 50 nA (typical) standby current, for use in low power portable products. One external inductor is required to generate the high voltage, and one external capacitor is used to select the oscillator frequency. The SP4422A is offered in an 8-pin narrow and 8-pin micro SOIC packages. For delivery in die form, please consult the factory. HON 1 VSS 2 COIL EL2 8 CAP 2 7 CAP 1 3 6 VDD 4 5 EL1 SP4422 SP4422A Block Diagram SP4422ADS/15 SP4422A Electroluminescent Lamp Driver 1 © Copyright 2000 Sipex Corporation Power Dissipation Per Package 8-pin NSOIC (derate 6.14mWoC above +70oC)...................500mW 8-pin µSOIC (derate 4.85mWoC above +70oC)....................390mW 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. 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. VDD............................................................................................................7.0V Input Voltages/Currents HON (pin1).........................................-0.5V to (VDD+0.5V) COIL (pin3)..............................................................60mA Lamp Outputs.............................................................................230VPP Storage Temperature.................................................-65˚C to +150˚C SPECIFICATIONS (T= 25°C; VDD = 3.0V; Lamp Capacitance = 17nF with 100Ω Series resistor; Coil = 5mH (RS = 18Ω); COSC = 100pF unless otherwise noted) PARAMETER Supply Voltage, VDD MIN. TYP. MAX. UNITS 2.2 3.0 5.0 V 20 40 30 60 mA 5.0 V 0.25V VDD+0.25 V Supply Current, ICOIL+IDD VDD Coil Voltage, VCOIL HON Input Voltage, VHON LOW: EL off HIGH: EL on -0.25 VDD-0.25 0 VDD CONDITIONS VDD=3.0V, VHON=3.0V VDD=5.0V, VHON=5.0V HON Current, EL on 25 60 µA VDD<VHON<3V Shutdown Current, ISD=ICOIL+IDD 50 0.3 500 nA µA VDD=3.0V, VHON=LOW VDD=5.0V, VHON=LOW INDUCTOR DRIVE Coil Frequency, fCOIL=fLAMPx32 Coil Duty Cycle 11.2 kHz 94 % Peak Coil Current, IPK-COIL 60 mA Guaranteed by design. 450 600 Hz TAMB=+25OC, VDD=3.0V TAMB=-40OC to +85OC, VDD=3.0V VPP TAMB=+25OC, VDD=2.2V TAMB=-40OC to +85OC, VDD=3.0V TAMB=+25OC, VDD=3.0V TAMB=+25OC, VDD=5.0V EL LAMP OUTPUT EL Lamp Frequency, fLAMP 250 200 352 60 70 110 180 80 Peak to Peak Output Voltage 140 200 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 EL 1 CAP 2 EL 2 HON SP4422ADS/15 X Y EL1 556.5 179.0 EL2 556.2 -151.0 COIL VSS -19.5 -568.0 -517.0 -517.0 HON -549.0 -256.5 CAP2 -549.0 93.5 CAP1 -568.0 -516.5 VDD -349.0 517.0 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 10mils +/- 1. 5. Pad center coordinates are relative to die center. 6. Die size 1447 x 1346 ( 57 x 53 mils). SP4422A VSS PAD COIL SP4422A Electroluminescent Lamp Driver 2 © Copyright 2000 Sipex Corporation THEORY OF OPERATION PIN DESCRIPTION SP4422ACN 1 2 3 4 The SP4422A 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 COSC and lamp output voltage. In general, increasing the COSC capacitor will increase the lamp output. 8 7 6 5 Pin 1 – HON- Enable for driver operation, high = active; low = inactive. The suggested oscillator frequency is 90kHz (COSC=100pF). 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 90kHz signal will be divided into 8 frequencies; 45kHz, 22.5kHz, 11.2kHz, 5.6kHz, 2.8kHz, 1.4kHz, 703Hz, and 352Hz. The third flip flop output (8kHz) is used to drive the coil (see figure 2 on page 9) and the eighth 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/fLAMP will always equal 32. 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. The on-chip oscillator of the SP4422A can be overdriven with an external clock source by removing the COSC capacitor and connecting a Pin 7 – Cap1- Capacitor input 1, connect to COSC. Pin 8 – Cap2- Capacitor input 2, connect to COSC. VBATTERY VDD 5mH/18Ω 0.1µF 6 COSC = 100pF VDD 7 3 1 HON Coil OSC SCR2 SCR1 fCOIL Cap1 Cap2 8 fLAMP Q FF1 FF2 Q fLAMP VSS EL2 4 2 EL1 5 EL Lamp SP4422A Schematic SP4422ADS/15 SP4422A Electroluminescent Lamp Driver 3 © Copyright 2000 Sipex Corporation clock source to pin 8. 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 frequency that can be supplied is 400kHz. The supply VDD can range from 2.2 to 5.0V. 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 94% 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 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 (see figure 2 on page 9) 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 smaller (see figure 1 on page 9). 9mH/35Ω The coil is an external component connected from VBATTERY to pin 3 of the SP4422A. 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=VBATTERY-IRL-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 SP4422A is final tested using a 5mH/18Ω coil from Hitachi Metals. For suggested coil sources see page 10. 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=256Hz. HON=VDD=ON HON=0V=OFF VIN=3V COSC =100pF + HON Cap2 – VSS Cap1 Coil VDD EL2 EL1 NOTE: Keep coil as close to the SP4422A as possible 0.1µF Low ESR Decoupling Capacitor EL Lamp SP4422A NOTE: Keep high voltage traces short and away from VDD and clock lines Typical SP4422A Application Circuit SP4422ADS/15 SP4422A Electroluminescent Lamp Driver 4 © Copyright 2000 Sipex Corporation 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 from each other (see figure 3 on page 9. A differential representation of the outputs is shown in figure 4 on page 9. 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. Layout Considerations 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 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 SP4422A circuit board layout must observe careful analog precautions. For applications with noisy voltage power supplies a 0.1µF low ESR decoupling capacitor must be connected from VDD to ground. Any high voltage traces should be isolated from any digital clock traces or enable lines. A solid ground plane connection is strongly recommended. All traces to the coil or to the high voltage outputs should be kept as short as possible to minimize capacitive coupling to digital clock lines and to reduce EMI emissions. 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, and lastly, the inductor used. 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). Electroluminescent Technology 5mH/18Ω 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 HON=VDD=ON HON=0V=OFF VIN=3V COSC=100pF + HON Cap2 – VSS Cap1 Coil VDD EL2 EL1 NOTE: Keep coil as close to the SP4422A as possible 0.1µF Low ESR Decoupling Capacitor 100Ω 17nF SP4422A NOTE: Keep high voltage traces short and away from VDD and clock lines SP4422A Test Circuit SP4422ADS/15 SP4422A Electroluminescent Lamp Driver 5 © Copyright 2000 Sipex Corporation 200 175 800 700 600 500 400 300 Frequency (kHz) Lamp Frequency (Hz) 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. 200 100 0 50 75 100 180 COSC (pF) 220 50 360 11.4 20 11.2 Itotal TOTAL (mA) 25 15 10 5 0 50 75 100 180 COSC (pF) 220 220 360 11 10.8 10.6 1 2 3 4 Lamp SIze (sq.in.) 5 6 ITOTAL vs Lamp Size VDD= 3.0V; Coil= 9mH, 35Ω; COSC = 180pF 300 250 250 200 200 Output (E PP) Output (E PP) 100 180 COSC (pF) 10.4 360 ITOTAL vs COSC VDD= 3.0V; Coil= 9mH, 35Ω; Lamp=1 sq. in. 150 100 150 100 50 50 0 0 50 75 100 180 COSC (pF) 220 1 360 2 3 4 5 6 Lamp Size (sq.in.) Output Voltage vs COSC VDD= 3.0V; Coil= 9mH, 35Ω; Lamp=1 sq. in. Output Voltage vs Lamp Size. VDD= 3.0V; Coil= 9mH, 35Ω; COSC= 180pF 12 7 10 6 Luminance (FtL) Luminance (FtL) 75 Oscillator Frequency vs COSC VDD= 3.0V; Coil= 9mH, 35Ω; Lamp=1 sq. in. Lamp Frequency vs COSC VDD= 3.0V; Coil= 9mH, 35Ω; Lamp=1 sq. in. Itotal TOTAL (mA) 150 125 100 75 50 25 0 8 6 4 2 0 5 4 3 2 1 0 50 75 100 180 COSC (pF) 220 1 360 3 4 Lamp Size (sq.in.) 5 6 Luminance vs Lamp Size. VDD= 3.0V; Coil= 9mH, 35Ω; COSC= 180pF Luminance vs COSC VDD= 3.0V; Coil= 9mH, 35Ω; Lamp=1 sq. in. SP4422ADS/15 2 SP4422A Electroluminescent Lamp Driver 6 © Copyright 2000 Sipex Corporation 800 20 600 15 Light Output (Cd/m2) Lamp Frequency (Hz) 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. 400 200 10 5 0 0 47 68 100 250 200 C OSC (pf) 300 390 2.2 5 4 3 Supply Voltage (Volts) Luminance vs. VDD=Vcoil VDD=3.0V; Coil=5mH, 18Ω; Load=10nF Lamp Frequency vs. COSC VDD= 3.0V; Coil= 5mH, 18Ω; Load=10nF 40 25.5 I Total (mA) I Total (mA) 25 30 20 10 22.5 68 100 250 200 C OSC (pf) 300 390 1 ITOTAL vs. Cosc VDD= 3.0V; Coil= 5mH, 18Ω; Load=10nF 2 4 3 Lamp Size (sq. in.) 5 6 ITOTAL vs. Lamp Size VDD= 3.0V; Coil= 5mH, 18Ω; COSC=100pF 250 250 200 200 Output (VPP) Output (VPP) 24 23.5 23 0 47 150 100 50 0 150 100 50 0 47 68 100 250 200 C OSC (pf) 300 1 390 Output Voltage vs. COSC VDD= 3.0V; Coil= 5mH, 18Ω; Load=10nF 2 4 3 Lamp Size (sq. in.) 5 6 Output Voltage vs. Lamp Size. VDD= 3.0V; Coil= 5mH, 18Ω; COSC=100pF 50 35 40 Luminance (cdls) Luminance (cdls) 24.5 30 20 10 0 30 25 20 15 10 5 0 33 56 82 200 150 C OSC (pf) 250 300 1 390 4 3 Lamp Size (sq. in.) 5 6 Luminance vs. Lamp Size. VDD= 3.0V; Coil= 5mH, 18Ω; COSC=100pF Luminance vs. COSC VDD= 3.0V; Coil= 5mH, 18Ω; Load=10nF SP4422ADS/15 2 SP4422A Electroluminescent Lamp Driver 7 © Copyright 2000 Sipex Corporation 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. 600 Lamp Frequency (Hz) Peak to Peak Voltage (Volts) 200 150 100 50 500 400 300 200 100 0 0 -40 0 25 70 Temperature ( O C) 85 -40 85 500 Lamp Frequency (Hz) 200 Peak to Peak Voltage (Volts) 25 70 Temperature ( O C) Lamp Frequency vs. Temperature VDD=3.0V; Coil=5mH/18Ω; COSC=100pF; Load=10nF Peak to Peak Voltage vs. Temperature VDD=3.0V; Coil=5mH/18Ω; COSC=100pF; Load=10nF 150 100 50 0 400 300 200 100 0 -40 0 25 70 Temperature ( O C) 85 -40 Peak to Peak Voltage vs. Temperature VDD=2.2V; Coil=5mH/18Ω; COSC=100pF; Load=10nF 0 25 70 Temperature ( O C) 85 Lamp Frequency vs. Temperature VDD=2.2V; Coil=5mH/18Ω; COSC=100pF; Load=10nF 25 6 20 5 Light Output (cd/m2) Total Supply Current (MA) 0 15 10 5 4 3 2 1 0 0 -40 0 25 70 Temperature ( O C) 85 0 Total Supply Current vs. Temperature VDD=3.0V; Coil=5mH/18Ω; COSC=100pF; Load=10nF SP4422ADS/15 70 25 Temperature ( O C) 85 Light Output vs. Temperature VDD=3.0V; Coil=5mH/18Ω; COSC=100pF; Lamp=6sq.in. SP4422A Electroluminescent Lamp Driver 8 © Copyright 2000 Sipex Corporation 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; 94% 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 (EL1-EL2) Figure 4. EL differential output waveform of the EL1 and EL2 outputs SP4422ADS/15 SP4422A Electroluminescent Lamp Driver 9 © Copyright 2000 Sipex Corporation 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 25 ± 2.0 Mark Technologies: North American Stocking distributor for Sankyo and CTC Ph: 905-891-0165 Fax: 905-891-8534 2.5 6.5 Max (All dimensions in mm) 9.0 Max Model Numbers: CH5070AS-203K-006 (20mH, 65Ω) Sipex Number: S51208-M-1021-Sipex HITACHI METALS Ltd. Japan Ph: 3-3284-4936 Fax: 3-3287-1945 HITACHI METALS Hong Kong Ph: 852-2724-4183 Fax: 852-2311-2093 HITACHI METALS Singapore Ph: 65-222-3077 Fax: 65-222-5232 HITACHI METALS Chicago, IL Ph: 847-364-7200 Fax: 847-364-7279 6.8 ±0.3 7.0 ±0.5 3.3 ±0.3 Part Numbers: MD735L902B (9mH + 20% 41Ω) MD735L502A (5mH + 20% 19.8Ω) Toko Inc. Singapore Ph: 255-4000 Fax: 250-8134 Toko Korea Ph: 0551-50-5500 Fax: 0551-93-1110 Toko America Inc. USA Ph: 847-297-0070 Fax: 847-699-7864 Toko Germany Ph: 49-7156-96-060 Fax: 49-7156-96-06-26 Toko France Ph: 01-4557-4465 Fax: 01-4554-2837 4.4 Max 2.75 Max 4.4 (All Dimensions in mm) Part Numbers: Toko U.K. 667MA-472N (4.7mH, 13Ω) Ph: 1753-854057-9 Fax: 1753-8503-23 Toko Hong Kong Ph: 2342-8131 Fax: 2341-9570 muRata USA Ph: 770-436-1300 Fax: 770-436-3030 muRata Taiwan Ph: 88-6429-1415-1 Fax: 88-6442-5292-9 muRata Hong Kong Ph: 85-2237-6389-8 Fax: 85-2237-5556-55 muRata Europe Ph: 49-9116-6870 Fax: 49-1166-8722-5 muRata Singapore Ph: 65-758-4233 Fax: 65-753-6181 Part Numbers: LQN6C472M04 (4.7mH, 35Ω) LQN6C103M04 (10mH, 80Ω) Coilcraft USA Ph: 847-639-6400 Fax: 847-639-1469 Coilcraft Taiwan Ph: 886-2-264-3646 Fax: 886-2-270-0294 Coilcraft Hong Kong Ph: 852-770-9428 Fax: 852-770-0729 Coilcraft Europe Ph: 44-01236-730595 Fax: 44-01236-730627 Coilcraft Singapore Ph: 65-296-6933 Fax: 465-296-4463 #382 5.0 ±0.3 5.0 ±0.3 4.7 ±0.3 Toko Inc. Japan Ph: 03-3727-1161 Fax: 03-3727-1176 5.7 ±0.3 (All Dimensions in mm) .260 6,60 MAX .175 MAX 4,45 .115 2,92 MAX Magnetically Shielded Part Numbers: DS1608C-106 (10mH, 32Ω) SP4422ADS/15 6.0 ±0.3 (All Dimensions in mm) (All Dimensions in mm) SP4422A Electroluminescent Lamp Driver 10 © Copyright 2000 Sipex Corporation 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 SP4422ADS/15 SP4422A Electroluminescent Lamp Driver 11 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 © Copyright 2000 Sipex Corporation All package dimensions in inches 8-pin µSOIC 8-pin NSOIC 0.0256 BSC 12.0˚ ±4˚ 0.012 ±0.003 0.189/0.197 0.150/0.157 SP4422ACN 0.228/0.244 0.0965 ±0.003 0.053/0.069 R .003 SP4422ACU 0.118 ±0.004 0.014/0.019 0.050 BSC 1 0.008 0.16 ±0.003 12.0˚ ±4˚ 0.01 0.020 0.020 1 3.0˚ ±3˚ 0.0215 ±0.006 0.037 Ref 2 0.116 ±0.004 0.034 ±0.004 0.116 ±0.004 0.040 ±0.003 0.013 ±0.005 0.118 ±0.004 95 SP4422ACN per tube, no minimum quantity 0˚ - 6˚ 0.006 ±0.006 0.006 ±0.006 0.118 ±0.004 0.004 ±0.002 50 SP4422ACU per tube 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 ACU 500 500 2500 2500 3000 3000 SP4422ADS/15 SP4422A Electroluminescent Lamp Driver 12 © Copyright 2000 Sipex Corporation ORDERING INFORMATION Model Operating Temperature Range Package Type SP4422ACN . .......................................... -40˚C to +85˚C ......................................... 8-Pin NSOIC SP4422ACU . .......................................... -40˚C to +85˚C ......................................... 8-Pin µSOIC SP4422ACX ............................................ -40˚C to +85˚C ........................................................ Die SP4422ANEB .................................................. N/A ........................................... Evaluation Board SP4422AUEB .................................................. N/A ........................................... 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: [email protected] 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. SP4422ADS/15 SP4422A Electroluminescent Lamp Driver 13 © Copyright 2000 Sipex Corporation