evaluation board user guide ug - 486 one technology way ? p. o . box 9106 ? norwood, ma 02062 - 9106, u.s.a. ? tel: 781.329.4700 ? fax: 781.461.3113 ? www.analog.com i coupler eval - adum5211ebz , 150 mw iso power evaluation board s ee the last page for an important warning and disclaimers. rev. 0 | page 1 of 8 features iso power integrated, isolated dc - to - dc converter regulated 3. 15 v or 5 .25 v output up to 150 mw output power 20- lead s sop package with 5 mm creepage high temperature operation: 105c high common - mode transient immunity: >25 kv/s supported i c oupl er? models adum5 2 10 adum5211 adum5212 ADUM6210 adum6211 adum6212 general description the e va l - adum 5211 ebz supports the adum5210 / adum5211 / adum5212 and ADUM6210 / adum6211 / adum6212 150 mw isolated power modules . it provides a jedec standard ssop20 pad lay out as well as support for setting the desired output voltage, setting enable control and providing multiple positions for on - boar d loads and bypass capacitors. iso power devices employ high frequency , high power switching circuits to enable power transfer across chip scale, air core transformers. the e valuation board includes emi mitigation recommendations from the an - 0971 application note . with the included techniques, this pcb and power module is capable of meeting the requirements of ci sp er22 class a or class b depending on the voltage and load range. complete specifications for the adum5210 / adum5211 / adum5212 and ADUM6210 / adum6211 / adum6212 are provided in the adum5210 / adum5211 / adum5212 and ADUM6210 / adum6211 / adum6212 data sheets, available from analog devices, inc., and should be consulted in conjunc - tion with this user guide when using the evaluation board. evaluation board 1 1070-001 figure 1. eval - adum 521 1ebz evaluation board
ug-486 evaluation board user guide rev. 0 | page 2 of 8 table of contents features .............................................................................................. 1 supported i coupler? models ........................................................... 1 general description ......................................................................... 1 evaluation board .............................................................................. 1 revision history ............................................................................... 2 pcb evaluation goals .................................................................. 3 connectors .................................................................................... 3 part configuration structures .................................................... 3 bypass on the pcb ........................................................................ 3 provision for loading ...................................................................3 data i/o ..........................................................................................4 emi mitigation ..............................................................................4 high voltage testing .....................................................................4 evaluation board schematics and artwork ...................................6 ordering information .......................................................................8 bill of materials ..............................................................................8 revision history 1/13 revision 0: initial version
evaluation board user guide ug-486 rev. 0 | page 3 of 8 pcb e valuation g oals this board is intended to achieve three goals. ? it will allow a user of the adum5210 / adum5211 / adum5212 or ADUM6210 / adum6211 / adum6212 to exercise the functional capabilities of the power converter . these include evaluation of bypass, loading, power supply enable/disab le control , and setting the adjustable output voltage level. ? all data channel configurations of the entire family can be exercised. ? this evaluation board demonstrates the emi mitigation techniques required to make a low emissions design as set out in the an - 0971 application note . the adum5210 / adum5211 / adum5212 and ADUM6210 / adum6211 / adum6212 ha ve a pin layout that is compatible with the adum5010 and adum6010 . these two additional device s do not include data channels and consist of the iso power module only. one pcb design supports all four families of parts. many of the structures on the pcb that support the digital channel s are not used for the adum5010 an d adum6010 version of the pcb. connectors this evaluation system is used to examine a variety of different aspects of performance. connections to power and instrumen - tation are critical to performing accurate measurements without creating artificial ringing, reflections, ripple , and emi. two types of interconnect are provided : sma edge connectors and throug h- hole signal ground pairs. between these two options, both temporary and permanent connections to the bo ard can easily be made. when coax connections are desired, sma connectors are available for the v ddp power input and v iso output as well as all four data i/o pins . these connectors were chosen because they are low profile and provide excellent mechanical c onnections to the pcb. most lab equipment is geared toward use of bnc connectors, so adaptors will be required to use the on board connectors. power can be directly wired to the pcb via the p6a and p7a through - hole connectors. these provide a power ground pair with the power on the pin 1 hole. these through holes are on 200mil centers, which match the pin spacing required for tektronix active probes. these positions can be used for scope test points or direct wiring of power and ground. in many cases , the data inputs will be derived from function generators through 50 coax cables. the pcb includes positions to install termination resistors to ground near each connector. two surface - mount pads are provided so that two 100 resistors can be pl aced in parallel to create a 50 termination with sufficient power dissipa tion capability to support a 5 v data stream. part c onfiguration s tructures the adum5210 / adum5211 / adum5212 and ADUM6210 / adum6211 / adum6212 have pins that must have set inputs for the ic to operate properly. the evaluation board allows all parts a full range of configuration options. on the primary side, the pdis pin must either be tied low t o enable the converter, or pulled high to disable the output power and put the part in a standby state. connector p3 a allows a j umper to be placed between pin 1 and pin 2 to disa ble the converter, or between pin 2 and pin 3 to enable the converter. the hea der can be removed if an external logic source control s the disable function and the signal can be fed directly into position 2 of the header. control of the v iso voltage is accomplished through a voltage divider thats center node is attached to the v sel pin as shown in figure 3 . there are two options for setting the output voltage supported on this evaluation board. a 20 k potentiometer is instal led at r1a in series with a 16.5 k resistor at position r16a making a variable res istance to v iso of 16.5 k to 36 k. a 10 k resistor to ground at position r14a forms the lower leg of the voltage divider. this will give a range of adjustment of v iso < 3.3 v to > 5.0 v. alternatively, if a fixed output voltage is desired, r16a can be removed and a resistor can be installed in r13a that combined with the existing 10 k resistance in r14a will form a fixed voltage divider to set v iso to a single voltage. refer to the adum5210 / adum5211 / adum5212 and ADUM6210 / adum6211 / adum6212 data sheet s for a selection of resistor values. bypass on the pcb several positions and structures are provided to allow optimum bypass of the evaluation board. provision s ha ve been made for optional surface - mount bulk capacitors to be installed near the power connectors to compensate for long cables to the power supply or external load. parallel bypass capacitors are installed near the adum5210 / adum5211/ adum5212 or ADUM6210 / adum6211 / adum 6212 consisting of a 0.1 f and a 10 f capacitor for v ddp and v iso . the 0.1 f capacitors can be moved to positions on the back side of the board if required. the pcb also implements distributed capacitive bypass on the primary side of the pcb. this con sists of power and ground fills on the top and bottom layers of the pcb on the v ddp side of the board. this is one of the techniques discussed in the emi mitigation section. it has the extra benefit of providing added bypass on t he primary side of the converter where the largest currents flow as well as rf shielding. provision for loading v iso can be loaded three ways: ? an external load can be connected via the sma connector. ? a fixed resistor can be installed at r18a . ? a surface -m ount resistor can be installed at r15a.
ug-486 evaluation board user guide rev. 0 | page 4 of 8 data i/o there are two data i/o pins on each side of the board . for example , examining channel a on side 1, figure 3 shows the following structures, starting from each i/o co nnector : ? a position for a pull - down resistor or termination to be installed in r2a and r4a. ? a 0 resistor at r6a connects the trace to the sma connector and termination. this allows extra trace length and components to be removed when capacitance must be controlled . ? two positions for connection of the trace to v ddp or gnd. r8a and c1a are availabl e for a pull - up or pull - down resistor or for a capacitive load when the i/o is an output . ? the re is the p1a test point, with a 200mil pitch. this is for hard wiring inputs or installing a tektronix active probe header. ? position r10a allows interconnection o f channel a and channel b. inputs on the same side can share a single off board connection, or an output signal can be wrapped back to an input. the same set of structures is present on each channel, allowing a wide range of tests to be conducted with mini mum config - uration. emi mitigation the pcb implements emi mitigation techniques discussed in the an - 0971 application note to demonstrate the recom - mended board layout options for this device. these techniques include stitching capacitance and edge guarding. stitching capacitance capacitance between the primary and secondary power and ground planes is the most effective way to reduce high frequency emissions from an iso power device. fi gure 2 shows how the inner layers of a pcb can create this stitching capacitance by overlapping inner layer metal to create an extremely low inductance capacitance. the green area shows the active coupling area. edge guarding providing guard rings laced together with vias on each layer of the primary side reduces edge emissions from the pcb stack - up . this addresses emissions due to differential currents flowing in the ground planes from reaching the edge of the pcb where they could radiate . figure 4 shows the top layer guard ring and the bottom layer ground fill as well as the regularly spaced vias in the guard ring that creates a cage type structure to reflect inter - plane emissions back into the pcb. figure 5 shows the top layer power fill along with its vias to the layer 3 power plane. this top layer power fill adds distributed capacitance as well as shielding for the layer below. high voltage testing this pcb is design ed in line with 2500 v basic insulation practices. high voltage testing beyond 2500 v is not recom - mended. appropriate care must be taken when using this evaluation board at high voltages, and it should not be relied on for safety functions because it has not been hi - pot tested or certified for safety.
evaluation board user guide ug-486 rev. 0 | page 5 of 8 la yer 2 ground overlap cre a ting ca p aci t ance la yer 3 power 1 1070-003 figure 2. ground and power planes creating stitching capacitance
ug-486 evaluation board user guide rev. 0 | page 6 of 8 evaluation board sch ematics and artwork 1 1070-002 figure 3. adum5210 / adum5211 / adum5212 or ADUM6210 / adum6211 / adum6212 schematic
evaluation board user guide ug-486 rev. 0 | page 7 of 8 1 1070-004 figure 4. ed ge guard on primary side top and bottom layers 1 1070-005 figure 5. power fill, top layer, primary side
ug-486 evaluation board user guide rev. 0 | page 8 of 8 ordering information bill of materials table 1 . quantity reference designator description 1 dut1a adum 5211 4 c5a, c6a, c1 2 a, c1 3a 0.1 f , 25 v, 10% , 0805 2 c4a, c15a 10 f , 6.3 v, 10% , 0805 4 r6a, r7a, r21a, r22a 0.0 1/16w 1 r14 a 10 k , 1/10 w , 1% 0 805 1 r16 a 16.5 k, 1/10 w, 1% , 0805 1 r1 a 20 k resistor var 3/8 inch sq top adj 1 p3a 3 pin 100 mil h eader 6 j1a to j6a sma edge connector, johnson 142- 0701 - 851 esd caution esd (electrostatic discharge) sensitive device . charged devices and circuit boards can discharge without detecti on. although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy esd. therefore, proper esd precautions should be taken to avo id performance degradation or loss of functionality. legal t erms and conditions by using the evaluation board discussed herein (together with any tools, components documentation or support materials, the evaluation board), you are agreeing to be bound by the terms and conditions set forth below (agreement) unle ss you have purchased the evaluation board, in which case the analog devices standard terms and conditions of sale shall govern. do not use the evaluation board until you have read and agreed to the agreement. your use of the evaluation board shall signify your acceptance of the agreement. this agreement is made by and between you (customer) and analog devices, inc. (adi), with its principal place of business at one technology way, norwood, ma 02062, usa. subject to the terms and conditi ons of the agree ment, adi hereby grants to customer a free, limited, personal, temporary, non - exclusive, non - sublicensable, non - transferable license to use the evaluation board for evaluation purposes only. customer understands and agrees that the evalu ation board is prov ided for the sole and exclusive purpose referenced above, and agrees not to use the evaluation board for any other purpose. furthe rmore, the license granted is expressly made subject to the following additional limitations: customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the evaluation board; and (ii) permit any third party to acces s the evaluation board. as used herein, the term third party includes any entity other than adi, customer, their employees, affil iates and in - house consultants. the evaluation board is not sold to customer; all rights not expressly granted herein, including ownership of the evaluation board, are reserved by adi. confidentiality. this agreement and the evaluation board shall all be c onsidered the confidential and proprietary information of adi. customer may not disclose or transfer any portion of the evaluation board to any other party for any reason. upon discontinuation of use o f the evaluation board or termination of this agreement, customer agrees to promptly return the evaluation board to adi. additional restrictions. customer may not disassemble, decompile or reverse engi neer chips on the evaluation board. customer shall inform adi of any occurred damages or any modifications or alterations it makes to the evaluation board, including but not limited to soldering or any other activity that affects the material content of the evaluation board. modifications to the evaluation board must comply with applicable law, including but not l imited to the rohs directive. termination. adi may terminate this agreement at any time upon giving written notice to customer. customer agrees to return to adi the evaluation board at that time. limitation of liability. the evaluation boar d provided hereu nder is provided as is and adi makes no warranties or representations of any kind with respect to it. adi specifically disclaims any representations, endorsements, g uarantees, or warranties, express or implied, related to the evaluation board including, but not limited to, the implied warranty of merchantability, title, fitness for a particular purpose or noninfringement of in tellectual property rights. in no event will adi and its licensors be liable for any incidental, special, indirect, or consequentia l damages resulting from customers possession or use of the evaluation board, including but not limited to lost profits, delay costs, labor costs or loss of goodwill. adis total li ability from any and all causes shall be limited to the amount of one hund red us dollars ($100.00). export. customer agrees that it will not directly or indirectly export the evaluation board to anot her country, and that it will comply with all applicable united states federal laws and regulations relating to exports. governing law. this agreement shall be governed by and construed in accordance with the substantive laws of the commonwealth of massachusetts (excluding conflict of law rules). any legal action regarding this agreement will be heard in the state or fede ral courts ha ving jurisdiction in suffolk county, massachusetts, and customer hereby submits to the personal jurisdiction and venue of such courts. the united nations convention on contracts for the internation al sale of goods shall not apply to this agreement and is e xpressly disclaimed. ? 2013 analog devices, inc. all rights reserved. trademarks and registered trademarks are the property of their respective owners. ug1107 0-0- 1/13(0)
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