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sp4405ds/18 sp4405 low voltage electroluminescent lamp driver ? copyright 2000 sipex corporation 1 n +2.2v to +4.5v battery operation n dc-to-ac converter produces 160v pp typical for el display panels n single resistor controlled internal oscillator n low current standby mode n internal feedback loop maintains a constant regulated el lamp voltage output applications n pagers n cellular phones n pdas low voltage electroluminescent lamp driver with regulated output voltage sp4405 description the sp4405 is a high voltage output dc-ac inverter specifically designed to drive electroluminescent lamps to backlight liquid crystal displays, keypads, and backlit readouts used in battery operated portable equipment. the sp4405 will operate from a +2.2v to +4.5v battery source. the device features an internal feedback loop that regulates the lamp voltage output to 160v pp (typical) with varying supply voltages to maintain constant el lamp brightness over the life of the battery. the device also has a low power shutdown mode which draws less than 50na (typical), ideal for low power portable products. one external inductor is required to generate the high voltage ac output. one external resistor is used to set the internal oscillator frequency. the sp4405 is ideal for portable applications such as pagers, cellular phones, pdas, and other portable applications using lcds in dim or low light environments. the sp4405 is offered in 8-pin soic and 8-pin m soic packages. r osc v ss coil c int sp4405 v battery c1 0.1 m f r osc 450k w l1 470 m h 3 6 8 1 7 2 elen *d1 1n4148 c int 0.1 m f *optional device v dd el2 el1 el lamp 5 4 c2 1nf elen v dd r osc v ss coil el2 c int el1 sp4405 8 7 4 3 2 1 5 6 ?
sp4405ds/18 sp4405 low voltage electroluminescent lamp driver ? copyright 2000 sipex corporation 2 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. power supply, v battery .....................................................................7.0v input voltages, elen (pin 1)....................................-0.5v to (v dd +0.5v) lamp outputs...............................................................................200v pp operating temperature...................................................-40?c to +85?c storage temperature....................................................-65?c to +150?c power dissipation per package 8-pin nsoic (derate 6.14mw/ o c above +70 o c)..................................500mw 8-pin m soic (derate 4.85mw/ o c above +70 o c)...................................390mw specifications v battery = 3.0v, l = 470 m h/3.9 w , r osc = 450k w , c lamp = 6.8nf, t amb = 25 o c and c int = 0.1 m f unless otherwise noted; refer to test circuit. r e t e m a r a p. n i m. p y t. x a ms t i n us n o i t i d n o c v , e g a t l o v y l p p u s d d 2 . 20 . 35 . 4v , t n e r r u c y l p p u si l i o c i + d d 9 3 7 2 5 5 0 7 a m v d d v 0 . 3 = v d d v 5 . 4 = v , e g a t l o v l i o c l i o c v d d 5 . 4 v v , e g a t l o v t u p n i n e l e n e l e f f o l e : w o l n o l e : h g i h 5 2 . 0 - v d d 5 2 . 0 - 0 v d d v 5 2 . 0 v d d 5 2 . 0 + v i , t n e r r u c n w o d t u h s d s i = l i o c i + d d 1 . 00 . 1 m a v d d v 5 . 4 = e v i r d r o t c u d n i f , y c n e u q e r f l i o c l i o c f = p m a l 8 2 1 x6 . 8 4z h k e l c y c y t u d l i o c0 9% i , t n e r r u c l i o c k a e p l i o c - k p 0 6a m. n g i s e d y b d e e t n a r a u g t u p t u o p m a l l e f , y c n e u q e r f p m a l l e p m a l 0 2 30 8 30 0 5 z h e g a t l o v t u p t u o k a e p o t k a e p0 2 1 0 5 1 0 6 10 9 1 0 0 2 v p p v d d v 0 . 3 = v d d v 5 . 4 = 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.
sp4405ds/18 sp4405 low voltage electroluminescent lamp driver ? copyright 2000 sipex corporation 3 pinout elen v dd r osc v ss coil el2 c int el1 sp4405 8 7 4 3 2 1 5 6 pin assignments pin 1 elen eluminescent lamp enable. when driven high, this input pin enables the el driver output el1 and el2 (pins 4 and 5, respectively) to the el lamp. pin 2 v ss power supply common. connect to the lowest circuit potential, typically ground. pin 3 coil coil. the inductor for the el lamp is connected from v battery to this input pin. pin 4 el1 eluminescent lamp. this is a lamp driver output pin to connect to the el lamp. pin 5 el2 eluminescent lamp. this is a lamp driver output pin to connect to the el lamp. pin 6 v dd positive battery power supply. connect such that +2.2v < v dd < +4.5v. pin 7 c int integrating capacitor. connecting a fast recovery diode from coil (pin 3) to this input pin increases the light output of the el lamp. an integrating capacitor (0.1 m f) connected from this pin to ground filters out any coil switching spikes or ripple present in the output waveform to the el lamp. pin 8 r osc oscillator resistor. connecting a 450k w resistor to this input pin sets the frequency of the internal clock. test circuit r osc v ss coil c int sp4405 v battery c1 0.1 m f r osc 750k w l1 470 m h 3 6 8 1 7 2 elen d1 1n4148 c int 0.1 m f v dd el2 el1 el lamp 5 4 c2 1nf 6.8nf 50 w 50 w 1m w
sp4405ds/18 sp4405 low voltage electroluminescent lamp driver ? copyright 2000 sipex corporation 4 description the sp4405 electroluminescent lamp driver is a low-cost low voltage device ideal for the replacement of led backlighting designs in keypads, handsets, pdas and other portable designs. the sp4405 contains a dc-ac inverter that can produce an ac output of 160v pp (typical) from a +2.2v to +4.5v input voltage. an internal feedback loop regulates the lamp voltage output to 160v pp (typical) with varying supply voltages to maintain constant el lamp brightness. an internal block diagram of the sp4405 can be found in figure 1 . the sp4405 is built on sipex's dielectrically isolated bicmos process that provides the isolation required to separate the high voltage ac signal used to drive the el lamp from the low voltage logic and signal processing circuitry. this ensures latch-up free operation in the interface between the low voltage cmos circuitry and the high voltage bipolar circuitry. a total of only six external components are required for the standard operation of the sp4405 : an inductor, a fast recovery diode, three capacitors and a resistor. a diagram of the sp4405 in a typical application can be found in figure 2 . electroluminescent technology 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 figure 1. internal diagram of the sp4405 f coil f lamp f lamp ff7 q q v battery l2 470 m h, 3 w el lamp scr1 scr2 45 2 v ss c int coil el2 el1 c int ** 0.1 m f osc r osc 450k w v ref =1.25v elen error comparator sp4405 c 1 0.1 m f d1 * 1n4148 v dd 6 r osc 8 3 7 1 c 2 1nf notes: * optional component ** c int may be decreased to change the square wave output to a sawtooth waveform.
sp4405ds/18 sp4405 low voltage electroluminescent lamp driver ? copyright 2000 sipex corporation 5 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 can be difficult to implement in some smaller hand held equipment. sipex now offers low power single chip driver circuits specifically designed to drive small to medium sized electroluminescent panels. market applications 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 power than leds or incandescent bulbs making them ideal for battery powered products. also, el lamps are able to evenly light an area without creating any undesirable "hot spots" in the display. theory of operation the sp4405 is a dc-ac inverter made up of: 1. the oscillator/frequency divider, 2. the coil, and 3. the switched h-bridge network. further details of each element follow. the oscillator/frequency divider the oscillator provides the sp4405 with an on-chip clock used to control the coil switch (f coil ) and the h-bridge network (f lamp and f lamp ). although the oscillator frequency can be varied to optimize the lamp output, the ratio of f coil / f lamp will always equal 128. figure 1 shows the oscillator output driving the coil and the output of the oscillator with 7 flip flops driving the lamp. the suggested oscillator frequency is 48.6khz (r osc = 450k w ) for f coil . the oscillator output is internally divided down by 7 flip flops to create a second internal control signal at 380hz for f lamp . the coil the supply v battery can range from +2.2v to +4.5v. v battery should be chosen such that i coil does not exceed the maximum coil current specification. the majority of the current goes through the coil and is typically much greater than i dd . the coil is an external component connected from v battery to pin 3 of the sp4405 . energy is stored in the coil according to the equation e l =1/2li p 2 where i p , to the first approximation, is the product i p = (t on ) (v battery - v ce )/l), where t on is the time it takes for the coil to reach its peak current, v ce is the voltage drop across the internal npn transistor for f coil , and l is the inductance of the coil. when the npn transistor switch is off, the energy is forced through an internal diode which drives the switched h-bridge network. this energy recovery is directly related to the brightness of the el lamp output. there are many variations among coils; magnetic material differences, winding differences and parasitic capacitances. for suggested coil suppliers, refer to page 7 . the f coil signal controls a switch that connects the end of the coil at pin 3 to ground or to open circuit. the f coil signal is a 90% duty cycle signal switching at the oscillator frequency, figure 2. typical application circuit for the sp4405, set for a square wave output with c int = 0.1 m f r osc v ss coil c int sp4405 v battery c1 0.1 m f r osc 450k w l1 470 m h 3 6 8 1 7 2 elen *d1 1n4148 c int 0.1 m f *optional device v dd el2 el1 el lamp 5 4 c2 1nf
sp4405ds/18 sp4405 low voltage electroluminescent lamp driver ? copyright 2000 sipex corporation 6 35khz. during the time when the f coil signal is high, the coil is connected from v battery to ground and a charged magnetic field is created in the coil. when the f coil signal is low, 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. f coil will send an array of charge pulses (see figure 4 ) 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 3 ). the switched h-bridge network 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 lamp signal which is the oscillator frequency divided by 128. for a 48.6khz oscillator, the 7 flip flops will drive f lamp = 380hz. 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 64 voltage steps from ground to 80v (typical) on el1 and el2 (pins 4 and 5, respectively) which are 180 degrees out of phase (see figure 5 ). a differential representation of the output is shown in figure 6 . the feedback loop connects the h-bridge network to the error comparator through an internal resistor network. when the error comparator senses a lamp voltage below regulation (< 80v p typical), the error comparator enables the oscillator to perform step-up conversions to the lamp output. when the error comparator senses lamp voltages above regulation (> 80v p typical), it disables the oscillator minimizing power consumption until the lamp voltage drops below regulation. with a varying supply voltage, the el lamp brightness will appear constant as a direct result of this regulated output voltage. fine tuning performance circuit performance of the sp4405 can be improved with some of the following suggestions: increase el lamp light output: by connecting a fast recovery diode from coil (pin 3) to c int (pin 7), the internal diode of the switched h-bridge network is bypassed resulting in an increase in light output at the el lamp. we suggest a fast recovery diode, such as the industry standard 1n4148, be used for d1. this circuit connection can be found in figure 2 . changing the el lamp output voltage waveform: designers can alter the sawtooth output voltage waveform to the el lamp. increasing the capacitance of the integration capacitor c int will integrate the sawtooth waveform making it appear more like a square wave. printed circuit board layout suggestions: the sp4405 's high-frequency operation makes pc layout important for minimizing ground bounce and noise. keep the ic's gnd pin and the ground leads of c1 and c int in figure 2 less than 0.2in (5mm) apart. also keep the connections to coil (pin 3) as short as possible. to maximize output power and efficiency and minimize output ripple voltage, use a ground plane and solder the ic's v ss (pin 2) directly to the ground plane. el lamp driver design challenges there are many variables which can be optimized for specific applications. the amount of light emitted is a function of the voltage applied to the lamp by the inductor, the frequency at which it is applied, the lamp material and the lamp size. sipex supplies characterization charts to aid the designer in selecting the optimum circuit configuration (see figures 7 to 25 ). sipex will perform customer application evaluations, using the customer's actual el lamp to determine the optimum operating conditions for specific applications. for customers considering an el backlighting solution for the first time, sipex is able to offer retrofitted solutions to the customer's existing led or non-backlit product for a thorough electrical and cosmetic evaluation. please contact your local sales representative for sipex or the sipex factory directly to initiate this valued service.
sp4405ds/18 sp4405 low voltage electroluminescent lamp driver ? copyright 2000 sipex corporation 7 el lamp manufacturers leading edge ind. inc. 11578 encore circle minnetonka, mn 55343 phone 1-800-845-6992 midori mark ltd. 1-5 komagata 2-chome taita-ku 111-0043 japan phone: 81-03-3848-2011 luminescent systems inc. (lsi) 4 lucent drive lebanon, nh. 03766 phone: (603) 643-7766 fax: (603) 643-5947 polarizers/transflector mnfg. nitto denko yoshi shinozuka bayside business park 48500 fremont, ca. 94538 phone: 510 445 5400 fax: 510 445-5480 top polarizer- npf f1205du bottom - npf f4225 or (f4205) p3 w/transflector transflector material astra products mark bogin p.o. box 479 baldwin, nj 11510 phone (516)-223-7500 fax (516)-868-2371 nec corporation yumi saskai 7-1, shiba 5 chome, minato-ku, tokyo 108-01, japan phone: (03) 3798-9572 fax: (03) 3798-6134 seiko precision shuzo abe 1-1, taihei 4-chome, sumida-ku, tokyo, 139 japan phone: (03) 5610-7089 fax: (03) 5610-7177 gunze electronics 2113 wells branch parkway austin, tx 78728 phone: (512) 752-1299 fax: (512) 252-1181 coil manufacturers hitachi metals material trading division 2101 s. arlington heights road, suite 116 arlington heights, il 60005-4142 phone: 1-800-777-8343 ext. 12 (847) 364-7200 ext. 12 fax: (847) 364-7279 hitachi metals ltd. europe immernannstrasse 14-16, 40210 dusseldorf, germany contact: gary loos phone: 49-211-16009-0 fax: 49-211-16009-29 hitachi metals ltd. kishimoto bldg. 2-1, marunouchi 2-chome, chiyoda-ku, tokyo, japan contact: mr. noboru abe phone: 3-3284-4936 fax: 3-3287-1945 hitachi metals ltd. singapore 78 shenton way #12-01, singapore 079120 contact: mr. stan kaiko phone: 222-8077 fax: 222-5232 hitachi metals ltd. hong kong room 1107, 11/f., west wing, tsim sha. tsui center 66 mody road, tsimshatsui east, kowloon, hong kong phone: 2724-4188 fax: 2311-2095 toko america inc. 1250 feehanville drive mt. prospect, il, 60056 u.s.a. phone: (847) 297-0070 fax: (847) 699-7864 toko inc. europe burgmullerstr. 7, d-40235 dusseldorf 1, fr germany phone: (0211) 680090 fax: (0211) 679-9567 toko inc. japan 1-17, higashi-yukigaya 2-chome, ohta-ku, tokyo 145 japan phone: 03-3727-1161 fax: 03-3727-1176 toko inc. singapore no. 1 lorong 2. toa pavoh. #03-00, singapore, 319637 phone: (255) 4000 fax: (250) 8134 toko inc. hong kong 45 hoi yuen road, yau lee centre, 7th, 8th, & 9th fl., kwun-tong kowloon, hong kong phone: 2348131 fax: 23419570 sumida electric co., ltd. 5999, new wilke road, suite #110 rolling meadows, il, 60008 u.s.a. phone: (847) 956-0666 fax: (847) 956-0702 sumida electric co., ltd. 4-8, kanamachi 2-chrome, katsushika-ku, tokyo 125 japan phone: 03-3607-5111 fax: 03-3607-5144 sumida electric co., ltd. block 15, 996, bendemeer road #04-05 to 06, singapore 339944 republic of singapore phone: 2963388 fax: 2963390 sumida electric co., ltd. 14 floor, eastern center, 1065 king's road, quarry bay, hong kong phone: 28806688 fax: 25659600 murata 2200 lake park drive, smyrna georgia 30080 u.s.a. phone: (770) 436-1300 fax: (770) 436-3030 murata european holbeinstrasse 21-23, 90441 numberg, postfachanschrift 90015 phone: 011-4991166870 fax: 011-49116687225 murata taiwan electronics 225 chung-chin road, taichung, taiwan, r.o.c. phone: 011 88642914151 fax: 011 88644252929 murata electronics singapore 200 yishun ave. 7, singapore 2776, republic of singapore phone: 011 657584233 fax: 011 657536181 murata hong kong room 709-712 miramar tower, 1 kimberly road, tsimshatsui, kowloon, hong kong phone: 011-85223763898 fax: 011-85223755655
sp4405ds/18 sp4405 low voltage electroluminescent lamp driver ? copyright 2000 sipex corporation 8 128 coil pulses per half cycle; 90% duty cycle. v peak = 80v (typ) el1 output el1 output el2 output el1 output el2 output differential representation e 12 v p-p = 160v (typ) figure 3. el output voltage in discrete steps at el1 output figure 4. voltage pulses released from the coil to the el driver circuitry figure 5. el voltage waveforms from the el1 and el2 outputs figure 6. el differential output waveform of the el1 and el2 outputs
sp4405ds/18 sp4405 low voltage electroluminescent lamp driver ? copyright 2000 sipex corporation 9 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. figure 7. lamp frequency vs r osc figure 8. oscillator frequency vs r osc 700 600 500 400 300 200 100 0 frequency (hz ) resistor / k w 200 300 400 450 500 600 700 800 900 1.0k 1.1k 1.2k 0 50 100 150 200 250 100 200 300 400 500 600 700 800 900 1000 oscillator resistor oscillator frequency (khz)
sp4405ds/18 sp4405 low voltage electroluminescent lamp driver ? copyright 2000 sipex corporation 10 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. figure 9. i total vs r osc with/without external diode figure 10. i total vs lamp size 60 50 40 30 20 10 0 i total (ma) r osc (k w ) 200 300 400 450 500 600 700 800 900 1.0k 1.1k 1.2k 0 5 10 15 20 25 30 35 40 45 50 1.5 2 2.5 3 3.5 4 4.5 5 lamp size icc (ma)
sp4405ds/18 sp4405 low voltage electroluminescent lamp driver ? copyright 2000 sipex corporation 11 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. figure 11. output voltage vs r osc figure 12. output voltage vs lamp size (lamp capacitance) 0 20 40 60 80 100 120 140 160 180 100 200 300 400 500 600 700 800 900 1000 oscillator resistor (k w ) output voltage (vpp) 0 20 40 60 80 100 120 140 160 180 1.5 2 2.5 3 3.5 4 4.5 5 lamp size (sq.in.) output voltage (v)
sp4405ds/18 sp4405 low voltage electroluminescent lamp driver ? copyright 2000 sipex corporation 12 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. figure 13. luminance (cd/m 2 ) vs r osc figure 14. luminance (fl) vs r osc 0 5 10 15 20 25 100 200 300 400 500 600 700 800 900 100 oscillator resistor (k w ) luminance (cd/m^ 2 ) 0 1 2 3 4 5 6 7 100 200 300 400 500 600 700 800 900 1000 oscillator resistor (k w ) luminance (fl)
sp4405ds/18 sp4405 low voltage electroluminescent lamp driver ? copyright 2000 sipex corporation 13 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. figure 15. figure 16. 0 5 10 15 20 25 30 1.5 2 2.5 3 3.5 4 4.5 5 lamp size (sq.in.) luminance (cd/m^2) 0 1 2 3 4 5 6 7 8 1.5 2 2.5 3 3.5 4 4.5 5 lamp size (sq.in.) luminance (fl)
sp4405ds/18 sp4405 low voltage electroluminescent lamp driver ? copyright 2000 sipex corporation 14 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. figure 17. v ce vs coil current figure 18. frequency vs temperature, v dd = 2.2v 480 460 440 420 400 380 360 340 320 300 frequency (hz ) temperature ( o c) -20 -40 0 20 40 60 80 500.00 450.00 400.00 350.00 250.00 200.00 150.00 100.00 50.00 0.00 v ce (mv ) i coil (ma) 15 5 10 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
sp4405ds/18 sp4405 low voltage electroluminescent lamp driver ? copyright 2000 sipex corporation 15 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. figure 19. frequency vs temperature, v dd = 3.0v figure 20. frequency vs temperature, v dd = 5.0v 480 460 440 420 400 380 360 340 320 300 frequency (hz) -20 -40 0 20 40 60 80 temperature ( o c) 480 460 440 420 400 380 360 340 320 300 frequency (hz ) -20 -40 0 20 40 60 80 temperature ( o c)
sp4405ds/18 sp4405 low voltage electroluminescent lamp driver ? copyright 2000 sipex corporation 16 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. figure 21. peak el driver voltage vs temperature, v dd = 2.2v figure 22. peak el driver voltage vs temperature, v dd = 3.0v 90.0 80.0 70.0 60.0 50.0 40.0 30.0 voltage (v) -20 -40 0 20 40 60 80 temperature ( o c) 90.0 80.0 70.0 60.0 50.0 40.0 30.0 voltage (v) -20 -40 0 20 40 60 80 temperature ( o c)
sp4405ds/18 sp4405 low voltage electroluminescent lamp driver ? copyright 2000 sipex corporation 17 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. figure 23. peak el driver voltage vs temperature, v dd = 5.0v figure 24. el driver current draw vs temperature (not including coil current), v dd = 3.0v 90.0 80.0 70.0 60.0 50.0 40.0 30.0 voltage (v) -20 -40 0 20 40 60 80 temperature ( o c) 3.50 3.00 2.50 2.00 1.50 1.00 0.50 0.00 current (ma ) -20 -40 0 20 40 60 80 temperature ( o c)
sp4405ds/18 sp4405 low voltage electroluminescent lamp driver ? copyright 2000 sipex corporation 18 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. figure 25. leakage current vs temperature, v dd = 3.0v 400.0 350.0 300.0 250.0 200.0 150.0 100.0 50.0 0.0 current (na ) -20 -40 0 20 40 60 80 temperature ( o c)
sp4405ds/18 sp4405 low voltage electroluminescent lamp driver ? copyright 2000 sipex corporation 19 p w 2 2 1 0.228/0.244 0.150/0.157 0.189/0.197 0.014/0.019 0.050 bsc 0.053/0.069 1 0.013 0.005 0.0256 bsc 0.118 0.004 0.020 2 0.020 0.116 0.004 0.034 0.004 0.040 0.003 0.004 0.002 0.118 0.004 0.118 0.004 0.037 ref 0.0215 0.006 3.0? 3? r .003 12.0? 4? 0.006 0.006 0.006 0.006 0.008 0? - 6? 0.012 0.003 0.01 12.0? 4? 0.16 0.003 0.0965 0.003 0.116 0.004 95 nsoic devices per tube, no minimum quantity 50 m soic devices per tube 8-pin nsoic 13 reels: p = 8mm, w = 12mm 8-pin m soic 13 reels: p = 8mm, w = 12mm pkg. min qty per reel std qty per reel max qty per reel en 500 2500 3000 eu 500 2500 3000 100 die per waffle pack all package dimensions in inches SP4405EN sp4405eu 8-pin nsoic 8-pin m soic
sp4405ds/18 sp4405 low voltage electroluminescent lamp driver ? copyright 2000 sipex corporation 20 ordering information model temperature range package type SP4405EN . ............................................ -40?c to +85?c ......................................... 8-pin nsoic sp4405eu . ............................................ -40?c to +85?c ......................................... 8-pin m soic sp4405neb ..................................................... n/a ........................................... evaluation board sp4405ueb ..................................................... n/a ........................................... evaluation board

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