evaluation board user guide ug - 487 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 - adum5010ebz , 150 mw iso power evaluation board please see the last page for an important warning and legal terms and conditions . rev. 0 | page 1 of 8 features iso power integrated, isolated dc - to - dc converter regulated 3. 15 v to 5 .25 v output up to 150 mw output power 20- lead s sop package with 5 .3 mm creepage high temperature operation: 105c high common - mode transient immunity: >25 kv/s supported i c oupler? models adum5010 ADUM6010 general description the e va l - adum5010ebz supports the adum5010 and ADUM6010 150 mw isolated power modules . it provides a jedec standard ssop20 pad layout as well as support for setting the desired output voltage, setting enable control , and prov iding multiple positions for on - board 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 technique s, this pcb and power module is capable of meeting the requirements of cisper22 class a or class b depending on the voltage and load range. complete specifications for the adum5010 and ADUM6010 are provided in the adum5010 and ADUM6010 data sheet s, available from analog devices , inc. , and should be consulted in conjunction with this user guide when using the evaluation board. evaluation board figure 1. eval - adum5010ebz evaluation board 1 1083-001
ug- 487 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 connecto rs .................................................................................... 3 part configuration structures .................................................... 3 bypass on the pcb ........................................................................3 provision for loading ...................................................................3 emi mitigation ..............................................................................4 high voltage capability ...............................................................4 evaluation board schematics and artwork ...................................5 ordering information .......................................................................7 bill of materials ..............................................................................7 revision history 11/12 rev ision 0: initial version
evaluation board user guide ug-487 rev. 0 | page 3 of 8 pcb evaluation goals this board is intended to achieve two goals. ? it will allow a user of the adum5010 or ADUM6010 to exercise the functional capabilities of the part. these include evaluation of bypass, loading, power supply enable/disable control and setting the adjustable output voltage level. ? this evaluation board demonstrates the emi mitigation techniques required to make a low emissions design as discussed in the an-0971 application note . connectors this evaluation system will be used to evaluate a variety of different aspects of performance. connections to a power supply and instrumentation are critical to performing accurate measurements without creating artificial ringing, reflections, ripple, and emi. two types of interconnections are provided, sma edge con- nectors and through-hole signal ground pairs. between these two options, both temporary and permanent connections to the board are easily made. when coax connections are desired, sma connectors are available for the v ddp power input and v iso output. these connectors were chosen because they are low profile and provide excellent mechanical connections 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. part configuration structures the adum5010 and ADUM6010 have pins that must have set inputs for the ic to operate properly. the evaluation board allows all a full range of configuration options. on the primary side, the pdis pin must either be tied low to enable the con- verter, or pulled high to disable the output power and put the part in a standby state. connector p3a allows a jumper to be placed between pin 1 and pin 2 to disable the converter, or between pin 2and pin 3 to enable the converter. the header can be removed if an external logic source controls 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 installed at r1a in series with a 16.5 k resistor at position r16a making a variable resistance to v iso of 16.5 k to 36 k. a 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 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 resistance in r14a will form a fixed voltage divider to set v iso to a single voltage. refer to the adum5010 or ADUM6010 data sheet for selection of resistor values. bypass on the pcb several positions and structures are provided to allow optimum bypass of the evaluation board. provisions have 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 adum5010 or ADUM6010 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 consists 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 added benefit of providing added bypass on the 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 mount resistor can be installed at r15a.
ug- 487 evaluation board user guide rev. 0 | page 4 of 8 emi mitigation the pcb implements emi mitigation techniques discussed in the an - 0971 application note to demonstrate the recommended board layout options for this device. these techniques include s titching capacitance and edge guarding. stitching capacitance the 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. figure 2 shows how the inner layers of a pcb can create this stitching capacitance by overlapping inner layer metal to create an extremely low induc tance 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 ed ge emissions from the pcb stack - up. this addresses emissions due to large high freq uency vertical current flow through vias and traces near the edges. 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 capabil ity this pcb is designed 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 since it has not been hi - pot tested or certified for safety. figure 2. ground and power planes creating stitching capacitance la yer 2 ground overla p cre a ting ca p aci t ance la yer 3 power 1 1083-003
evaluation board user guide ug- 487 rev. 0 | page 5 of 8 evaluation board schematics and artwork figure 3. adum5010 / ADUM6010 schematic n p c10a n p c8a 5 4 3 2 1 j4a r18a r15a r16a 3 2 1 r1a 20k? c14a c12a r13a 13 17 3 12 4 18 9 20 1 8 14 7 10 6 5 2 19 16 15 11 dut1a r14a c15a c13a c11a c5a c3a c6a c7a c4a 3 2 1 p3a 5 4 3 2 1 j1a visoa adum5010arsz 0.1f dni dni johnson142-0701-851 dni 16.5k? 0.1f tbd0805 10k? 10f 0.1f 0.1f 10f molex22-03-2031 johnson142-0701-851 vddpa visoa vddpa visoa visoa vddpa visoa visoa vddpa vddpa cw vdd2 gndiso nc nc gndiso gndiso nc vsel viso gndiso gndp vddp pdis nc gndp gndp nc nc gndp vdd1 2 1 p6a mtsw-202-12-g-s-730 vddpa 2 1 p7a mtsw-202-12-g-s-730 visoa 1 1083-002
ug- 487 evaluation board user guide rev. 0 | page 6 of 8 figure 4. edge guard on primary side top and bottom layers figure 5. power fill, top layer, primary side 1 1083-004 1 1083-005
evaluation board user guide ug- 487 rev. 0 | page 7 of 8 ordering information bill of materials table 1 . quantity reference designator description 1 dut1a adum 5010 4 c5a, c6a, c16a, c17a 0.1 f , 25 v , 10% , 0 8 0 5 2 c 4a , c 15a 10 f , 6.3 v , 10% , 0805 1 r14 a 10 k , 1/10 w, 1% 0805 1 r16 a 16.5 k, 1/10 w, 1%, 0805 1 r1a 20 k resistor var 3/8 inch sq top adj 2 j1a, j4a sma edge connector, johnson 142- 0701 - 851
ug-487 evaluation board user guide rev. 0 | page 8 of 8 notes esd caution esd (electrostatic discharge) sensitive device . charged devices and circuit boards can discharge without detectio n. although this product features patented or proprietary pr otection circuitry, damage may occur on devices subjected to high energy esd. therefore, proper esd precautions should be taken to avoid performance degradation or loss of functionality. legal terms and conditions by using the evaluation board discussed herein (together with an y tools, components documentation or support materials, the ev aluation board), you are agreeing to be bound by the terms and conditions set forth below (agreement) unless you have purchased the evaluation board, in which case the analog devices standard terms a nd 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 a greement 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 condition s of the agreement, adi hereby grants to customer a free, limited, personal, temporary, non-exclusive, non-sublicensable, non-transferable li cense to use the evaluation board for evaluation purposes only. customer understands and agrees that the evaluation board is provided for the sole and exclusive purpose referenced above, and agrees not to use the evaluation board for any other purpose. furthermore, 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 boar d; and (ii) permit any third party to access the evaluation board. as used herein, the term third party includes any entity other than adi, customer, their employees, affiliates and in-house consultants. the evaluatio n board is not sold to customer; all righ ts not expressly granted herein, including ownership of the evaluation board, are reserved by adi. confiden tiality. this agreement and the evaluation board shall all be c onsidered the confidential and propriet ary 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 of the evaluation board or termination of this agreement, customer agrees to promptly return the evaluation board to adi. additional restri ctions. customer may not disassemble, decompile or reverse engine er 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 o r 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 limited to the rohs directive. termina tion. 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 board provided hereunder is provided as is and adi makes no warranties or representations of any kind with respect to it. adi specifically disclaims any re presentations, endorsements, gua rantees, 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 intellectual property rights. in no event will adi and its licensors be liable for any incidental, special, indirect, or consequential damag es 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 liab ility from any and all causes shall be limited to the amount of one hundred us dollars ($100.00). export. customer agrees that it will not directly or indirectly export the evaluati on board to another 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 constru ed 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 federa l courts having 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 international sale of goods shall not apply to this agreement and is expressly disclaimed. ?2012 analog devices, inc. all rights reserved. trademarks and registered trademarks are the prop erty of their respective owners. ug11083-0-11/12(0)
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