EPC101 light-curtain device with 2-wire bus interface general description the epc10x chip set is a general purpose cmos integrated circuit for light-curtain applications. epc100 is used on the receiver side (rx) whereas epc 101 is on the emitter side (tx). up to 1023 devices may be connected to two respectively four wires in paral - lel. each device can be individually addressed by an epc100 chip which acts as the interface between a microcontroller and the 2- wire bus. it manages the bus traffic between the microcontroller and the individual rx and tx elements. programmable fuses i.e. for the address, sensitivity, led light pulse width, etc. allow the device to be parametrized in the final system (otp memory). each chip can be put into 'standby mode' or 'operating mode' to re - duce power consumption. during 'standby mode', power consump - tion is reduced and the photo diode is shorted. refer to the separate data sheet of the epc100 receiver chip and to the reference manual epc10x for implementation, usage and configuration information. feature ? light pulse transmitter ? universal led controller ? scan period down to 30 s ? integrated clock generator ? csp10 package with very small footprint and standard qfn16 pack - age available applications ? light barriers ranging from millimeters to tens of meters ? light curtains ? smoke detectors ? liquid detectors functional block diagram functional block diagram epc70x lst v o l t a g e r e g u l a t o r parameter memory 2-wire com interface 2-wire com interface so si cs vdd33 pd 03.11.2010 page 1 ... file: this document is confidential and protected by law and international trades. it must not be shown to any third party nor be copied in any form without our written permission . led v led vdd18 signal processor processor spi controller gnd vdd led sck ? 2011 espros photonics corporation characteristics subject to change without notice 1 datasheet EPC101 - v2.1 www.espros.ch
EPC101 absolute maximum ratings (notes 1, 2) recommended operating conditions voltage to any pin except v dd supply voltage on 2-wire bus v dd programming voltage on 2-wire bus v dd input current at any pin except led power consumption with maximum load storage temperature range (t s ) lead temperature solder, 4 sec. (t l ) -0.3v to vdd+0.3 v -0.3v to + 8.0v -0.3v to +8.0v -6ma to +6 ma 125mw -55c to +155c +260c operating voltage on 2-wire bus v dd programming voltage on v dd operating temperature (t o ) relative humidity (non-condensing) min. 4.5 7.0 -40 +5 max. 5.5 8.0 +85 +95 units v v c % note 1: absolute maximum ratings indicate limits beyond which damage to the device may occur. recommended operating conditions indic - ate conditions for which the device is intended to be functional, but do not guarantee specific performance limits. for guaranteed specifica - tions and test conditions, see electrical characteristics. note 2: this device is a highly sensitive cmos ac current amplifier with an esd rating of jedec hbm class 0 (<250v). handling and as - sembly of this device should only be done at esd protected workstations. electrical characteristics v dd = 5.0 v, -40c < t a < +85c, if not otherwise specified symbol parameter conditions/comments values units min. typ. max. v pp ripple on supply voltage, peak to peak 2-wire interface v det 50mv 25 mv 100mv 50 mv 200mv 100 mv i dd_idle current consumption in idle mode 1.4 ma i dd_op current consumption in operation mode i pd = 0 ma 2 ma v det detection level for 2-wire interface 80 120 mv i mod modulation current for 2-wire interface 6.4 9.8 ma t pulse led pulse length configurable 1 8 s f clk reference clock internal oscillator 1 mhz d f clk temperature drift of the oscillator 7 % v pup power-up threshold voltage the voltage at vdd33 when the device starts up 2.4 3 v v ih high level input voltage 0.7 *v dd v dd v v il low level input voltage gnd 0.3 *v dd v i leakd input leakage current 10 a v oh output high voltage @ 4ma sink except pin sck/led v dd - 0.5 v v ol output low voltage @ 4ma source 0.5 v i sck/led source current @ pin sck / led 0.7 1.3 v v hist schmitt trigger hysteresis 0.1 v r pu pull-up resistor 30 200 k ? 2011 espros photonics corporation characteristics subject to change without notice 2 datasheet EPC101 - v2.1 www.espros.ch
EPC101 connection diagrams top view cs outn/ so pd gnd vdd en/ si led/s ck vdd33 outh vdd18 3 2 1 10 5 4 7 6 8 9 pin connections qfn16-veed- 1vn4 lst top view 19.10.2010 page 1 ... file: this document is confidential and protected by law and international trades. it must not be shown to any third party nor be copied in any form without our written permission . 1 2 3 4 5 6 7 8 9 10 11 12 1 3 1 4 1 5 1 6 10-pin chip scale package (csp) 16 pin qfn package 10-pin csp 16-pin qfn pin name type description 1 9 v dd power supply positive power supply for regulator and positive terminal of the 2-wire interface. 2 7 gnd power supply negative power supply pin. 3 6 pd analog input photo diode input. 4 4 cs digital input spi interface: chip select. active low, with pull up 5 2 aout outh analog out digital out amplified and filtered signal of the photo diode (push-pull) or light reserve output (open drain) with 50 % threshold voltage above the threshold of the out output. 6 1 so digital output spi interface: serial out 7 15 si digital output spi interface: serial input 8 14 sck digital in / out spi interface: shift clock 9 12 v dd33 power supply decoupling positive power supply for analog and digital circuitry. if the the device is supplied by v dd33 , a power supply filter capacitor is connected to this pin. this is not a supply pin for external com - ponents for test purpose only!! 10 10 v dd18 analog out 1.8 v regulator output this is not a supply pin for external components. for test purpose only! n/a 3 nc not connected. connect this pin with vss. n/a 5 nc not connected. connect this pin with vss. n/a 8 nc not connected. connect this pin with vss. n/a 11 nc not connected. connect this pin with vss. n/a 13 nc not connected. connect this pin with vss. n/a 16 nc not connected. connect this pin with vss. ? 2011 espros photonics corporation characteristics subject to change without notice 3 datasheet EPC101 - v2.1 www.espros.ch
EPC101 overview functional description light curtain C transmitter figure 1 shows a typical schematic circuit of a light curtain emitter edge. a microcontroller manages the transmitters in the edge via an inter - face chip (epc100) to the 2-wire power and communication bus. since the leds draw a very high peak current when enabled, huge noise on he 2-wire bus would interfere with the communication protocol on the bus. thus, the leds are connected to a separate 2-wire power bus. part name part no. designed approved scale page m 1:1 din a3 t h i s d o c u m e n t i s c o n f i d e n t i a l a n d p r o t e c t e d b y l a w a n d i n t e r n a t i o n a l t r a d e s . i t m u s t n o t b e s h o w n t o a n y t h i r d p a r t y n o r b e c o p i e d i n a n y f o r m w i t h o u t o u r w r i t t e n p e r m i s s i o n . file: unbenannt 26.02.2009 1 vdd33 if vdd epc100 gnd so sck si cs c gnd vdd c vdd + i led - i led pd vdd33 vdd EPC101 gnd led t n vdd18 r led c1 c2 pd vdd33 vdd EPC101 gnd led t 2 vdd18 r led c1 c2 pd vdd33 vdd EPC101 gnd led t 1 vdd18 r led c1 c2 figure 1 : light curtain transmitter with up to 300ma pulse current through the led the feedback led voltage to the pd input is to allocate the physical location of the transmitter node to the unique chip id during production. in this mode the the led is used as a receiver. for configuration please refer to the reference manual epc10x. in figure 1 , the led current is defined by a common current source. the resistor r led , which is typically 2.2 ohms, is not needed in non- safety applications. if this resistor is inserted, a failure mode will be detected if more than one led is active due to a short circuit or a failure in the EPC101. it is also possible to have a common voltage supply and to control the led current by a series resistor. in order to allow a stable operation of the transmitter nodes, two voltage supply decoupling capacitors are needed: c1 should be of 100nf and c2 4.7nf, both ceramic types. for long range applications, a led current of up to 1a is needed. such a high pulse current can be achieved by using a darlington stage ac - cording to figure 2 . resistor r led is typically 2.7 ohms, resistor r approx. 1 kohm. possible transistors are for t1 bc846b and for t2 bc807- 40. part name part no. designed approved scale page m 1:1 din a3 t h i s d o c u m e n t i s c o n f i d e n t i a l a n d p r o t e c t e d b y l a w a n d i n t e r n a t i o n a l t r a d e s . i t m u s t n o t b e s h o w n t o a n y t h i r d p a r t y n o r b e c o p i e d i n a n y f o r m w i t h o u t o u r w r i t t e n p e r m i s s i o n . file: unbenannt 26.02.2009 1 vdd33 if vdd epc100 gnd so sck si cs c gnd vdd c vdd + i led - i led vdd18 pd vdd33 vdd EPC101 gnd led t n r led r t1 t2 c1 c2 vdd18 pd vdd33 vdd EPC101 gnd led t n r led r t1 t2 c1 c2 vdd18 pd vdd33 vdd EPC101 gnd led t n r led r t1 t2 c1 c2 vdd18 pd vdd33 vdd EPC101 gnd led t 1 r led r t1 t2 c1 c2 vdd18 pd vdd33 vdd EPC101 gnd led t n r led r t1 t2 c1 c2 vdd18 pd vdd33 vdd EPC101 gnd led t 2 r led r t1 t2 c1 c2 figure 2 : light curtain transmitter with more then 300ma pulse current through the led ? 2011 espros photonics corporation characteristics subject to change without notice 4 datasheet EPC101 - v2.1 www.espros.ch
EPC101 layout information ( all measures in mm, m 1:1 din a4 part name part no. designed approved scale page t h i s d o c u m e n t i s c o n f i d e n t i a l a n d p r o t e c t e d b y l a w a n d i n t e r n a t i o n a l t r a d e s . i t m u s t n o t b e s h o w n t o a n y t h i r d p a r t y n o r b e c o p i e d i n a n y f o r m w i t h o u t o u r w r i t t e n p e r m i s s i o n . file: unbenannt 1 26.02.2009 ) csp-10 package mechanical dimensions layout recommendations 0 . 5 1.9 +0.0/-0.1 1 . 4 + 0 . 0 / - 0 . 1 0.5 0.5 0.15 0 . 1 5 0 . 5 solder balls sn97.5ag2.5 0 . 3 0 . 1 1 0 . 0 1 ? 0.12 bottom view pin 1 <name> 18.05.2011 page 1 file: this document is confidential and protected by law and international trades. it must not be shown to any third party nor be copied in any form without our written permission . no solder mask inside this area 0.5 0.5 0 . 5 ? 0.3 2.5 2 . 0 0.1524 qfn-16 package mechanical dimension qfn16 package lst top view 2 . 9 - 3 . 1 0.3 2.9 - 3.1 0 . 1 - 0 . 2 1.9 0.25 20.12.2011 page 1 file: this document is confidential and protected by law and international trades. it must not be shown to any third party nor be copied in any form without our written permission . 0.5 0 . 9 0 . 0 2 bottom view 0 . 2 5 1 . 9 ? 2011 espros photonics corporation characteristics subject to change without notice 5 datasheet <a href='http://www.datasheet.hk/search.php?part=epc101&stype=part'>EPC101</a> - v2.1 www.espros.ch
<br> <a href='http://www.datasheet.hk/search.php?part=epc101&stype=part'>EPC101</a> reflow solder profile for infrared or conventional soldering the solder profile has to follow the recommendations of ipc/jedec j-std-020c (min. revision c) for pb-free assembly for both types of packages. the peak soldering t emperature (t l ) should not exceed +260c for a maximum of 4 sec. packaging information (all measures in mm) tape & reel information the devices are mounted on embossed tape for automatic placement systems. the tape is wound on 178 mm (7 inch) or 330 mm (13 inch) reels and individually packaged for shipment. g eneral tape-and-reel specification data are available in a separate data sheet and indicate the tape sizes for various package types. further tape-and-reel specifications can be found in the electronic industries association (eia) standard 481-1, 481-2, 481-3. pin 1 8 pin 1 1 2 8 2 csp6 tape qfn16 tape pin 1 8 pin 1 1 2 8 4 csp6 tape qfn16 tape epc does not guarantee that there are no empty cavities. thus, the pick-and-place machine should do check the presence of a chip during picking. order information part number package rohs compliance packaging method epc100-csp10 csp10 yes reel epc100-qfn16 qfn16 yes reel <a href='http://www.datasheet.hk/search.php?part=epc101&stype=part'>EPC101</a>-csp10 csp10 yes reel <a href='http://www.datasheet.hk/search.php?part=epc101&stype=part'>EPC101</a>-qfn16 qfn16 yes reel ? 2011 espros photonics corporation characteristics subject to change without notice 6 datasheet <a href='http://www.datasheet.hk/search.php?part=epc101&stype=part'>EPC101</a> - v2.1 www.espros.ch
<br> <a href='http://www.datasheet.hk/search.php?part=epc101&stype=part'>EPC101</a> important notice espros photonics ag and its subsidiaries (epc) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. all products are sold subject to epcs terms and conditions of sale supplied at the time of order acknowledgment. epc warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with epcs standard war - ranty. testing and other quality control techniques are used to the extent epc deems necessary to support this warranty. except where man - dated by government requirements, testing of all parameters of each product is not necessarily performed. epc assumes no liability for applications assistance or customer product design. customers are responsible for their products and applications using epc components. to minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards. epc does not warrant or represent that any license, either express or implied, is granted under any epc patent right, copyright, mask work right, or other epc intellectual property right relating to any combination, machine, or process in which epc products or services are used. in - formation published by epc regarding third-party products or services does not constitute a license from epc to use such products or services or a warranty or endorsement thereof. use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from epc under the patents or other intellectual property of epc. resale of epc products or services with statements different from or beyond the parameters stated by epc for that product or service voids all express and any implied warranties for the associated epc product or service. epc is not responsible or liable for any such statements. epc products are not authorized for use in safety-critical applications (such as life support) where a failure of the epc product would reasonably be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing such use. buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of epc products in such safety-critical applications, notwithstanding any applications-related information or support that may be provided by epc. further, buyers must fully indemnify epc and its representatives against any damages arising out of the use of epc products in such safety- critical applications. epc products are neither designed nor intended for use in military/aerospace applications or environments unless the epc products are spe - cifically designated by epc as military-grade or "enhanced plastic." only products designated by epc as military-grade meet military specifica - tions. buyers acknowledge and agree that any such use of epc products which epc has not designated as military-grade is solely at the buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use. epc products are neither designed nor intended for use in automotive applications or environments unless the specific epc products are desig - nated by epc as compliant with iso/ts 16949 requirements. buyers acknowledge and agree that, if they use any non-designated products in automotive applications, epc will not be responsible for any failure to meet such requirements. ? 2011 espros photonics corporation characteristics subject to change without notice 7 datasheet <a href='http://www.datasheet.hk/search.php?part=epc101&stype=part'>EPC101</a> - v2.1 www.espros.ch
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