www.cdpoweronline.com selection guide 1 features industry standard footprint short circuit protection efficiency to 95% wi de input range 1.8v, 2.5v, 3.3v & 5v output operating temperature range ?0? to 85? smd construction optional shutdown & trim pins (nga10s15050se version) description the nga series is a range of low profile dc/dc converters offering a single regulated output over a wide input voltage range. all parts deliver the full output power up to 85? without the need for external heatsinking while the synchronus rectification design yields excellent efficiencies up to 95%. output nominal power nominal current input current consumption @ efficiency @ full load shutdown min full min nom max min nom max min max load load v in v in v in v in v in v in v in v in order code (v) (v) a ma mw % nga10s15018s 15 1.8 0 2.0 847 280 160 0.5 4.8 16.1 89 81 1 nga10s15025s 15 2.5 0 2.0 1142 380 210 0.5 4.8 16.1 92 85 1 nga10s15033s 15 3.3 0 2.0 1478 480 269 0.5 4.8 16.1 94 88 1 nga10s15050s 15 5.0 0 2.0 1493 705 388 1.0 4.8 16.1 95 92 1 nga10s15050s 2 15 5.0 0 2.0 1493 705 388 1.0 4.8 16.1 95 92 1 nga10s15018d 15 1.8 0 2.0 847 280 160 0.5 4.8 16.1 89 81 2 NGA10S15025D 15 2.5 0 2.0 1142 380 210 0.5 4.8 16.1 92 85 2 nga10s15033d 15 3.3 0 2.0 1478 480 269 0.5 4.8 16.1 94 88 2 nga10s15050d 15 5.0 0 2.0 1493 705 388 1.0 4.8 16.1 95 92 2 nga10s15050d 2 15 5.0 0 2.0 1493 705 388 1.0 4.8 16.1 95 92 2 parameter conditions min typ max units continuous operation vo ltage range 1.8,2.5 & 3.3v output types 4.75 15 28 vdc continuous operation ng a10s15050s 7.0 15 28 continuous operation ng a10s15050se variable 3 15 28 1.8v output types 29 reflected ripple 2.5v output types 49 ma p-p current 3.3v output types 48 5.0v output types 99 input characteristics 1 output characteristics 1 absolute maximum ratings nga series non-isolated wide input dc/dc converters environmental 1 parameter conditions min typ max units operation 40 85 ? storage 50 125 ? pcb temperature above ambient 40 ? parameter conditions min typ max units rated power t a = ?0? to 85? 10 w vo ltage set ?.5 ?.0 % point accuracy low line to high line, line regulation with external input/output capacitors, 0.2 0.5 %/% refer to test circuit 10% load to 100% load, load regulation with external input/output capacitors, 1.5 2.0 % refer to test circuit bw = dc to 20mhz ripple & noise with external input/output capacitors, 40 70 mvp-p refer to test circuit 1 specifications typical at t a =25?, nominal input voltage and rated output current unless otherwise specified. 2 if optional v adj and sd pin are required (as indicated in the mechanical dimensions diagram) suffix the part number with an e when ordering, i.e. nga10s1505se & nga10s1505de. 3. supply voltage should exceed output voltage by 1.45v. short circuit protection continuous internal power dissipation 1.1w lead temperature 1.5mm from case for 10 seconds 300? input voltage v in 28v minimum load 0% output trim control 0v to +5v relative to 0v shutdown control ?.3v to +28v relative to 0v nominal input voltage mechanical dimensions output volt age
nga series non-isolated wide input dc/dc converters mechanical dimensions - 1 mechanical dimensions - 2 3(5) pin sip package style recommended footprint details recommended footprint details 3(5) pin dip package style w eight: 4.0g unless otherwise stated all dimensions in inches(mm) ?.01(0.25). * optional pins available on nga10s15050se only. 0.825 (20.96) 0.220(5.60) 0.1 (2.54) 0.149(3.78) 0.014?.020 (0.35?.05) 0.846 (21.49) 0.312 (7.92) 0.020?.002 (0.50?.05) 0.100(2.54) 0.100 (2.54) 0.049(2.54) 0.045(1.15) 0.146?.020 (3.70?.50) 4 5* 3 2 1* 0.846 (21.49) 0.846 ?.002 (21.49 ?.50) 0.846 (21.49) 0.753 (19.14) 0.753 (19.14) 0.010?.002 (0.25?.05) 0.825 (20.96) 0.222?.020 (5.65?.50) 0.1 (2.54) 0.020?.002 (0.50?.05) 0.161?.020 (4.10?.50) 0.267(6.77)max 0.312 (7.92) 4 5* 3 2 1 * 4 5* 3 2 1 * 6 6 7 7 0.100(2.54) 0.004(0.10) 0.049(2.54) 0.045(1.15) all pins on a 0.1(2.54) pitch and within 0.01(0.25) of true position. all pins on a 0.1(2.54) pitch and within 0.01(0.25) of true position. 0.400 (10.16) 0.400 (10.16) 0.004(0.10) w eight: 4.0g unless otherwise stated all dimensions in inches(mm) ?.01(0.25). * optional pins available on nga10s15050de only. pin connections pin number 1* 2 3 4 5* 6 7 sd v in gnd v out v adj nc nc pin connections pin number 1* 2 3 4 5* sd v in gnd v out v adj
c&d technologies (ncl) ltd t anners drive, blakelands north milton keynes mk14 5bu, england te l: +44 (0)1908 615232 fax: +44 (0)1908 617545 email: info@cdtechno-ncl.com www.cdpoweronline.com c&d technologies inc. 3400 e britannia drive, tucson, arizona 85706, usa te l: +1 (800) 547-2537 fax: +1 (520) 741-4598 email: sales@cdtechno.com c&d technologies (ncl) limited reserve the right to alter or improve the specification, internal design or manufacturing process at any time, without notice. please check with your supplier or visit our web site to ensure that you have the current and complete specification for your product before use. ?c&d technologies (ncl) limited 2004 ndc nga.4 no part of this publication may be copied, transmitted or stored in a retrieval system or reproduced in any way including, but not limited to, photography, photocopy, magnetic or other recording means, without prior written permission from c&d technologies (ncl) limited. instructions for use are available from www.cdpoweronline.com nga series non-isolated wide input dc/dc converters general characteristics 1 application notes terminology parameter conditions min typ max units switching frequency 270 300 330 khz 50% load change, 1. 8v ou tp ut ty pe s 90(160) tr ansient response 50% load change, 2. 5v ou tp ut ty pe s 84(145) max over-shoot 50% load change, 3. 3v ou tp ut ty pe s 83(130) mv(?) 50% load change, 5.0v output types 75(40) 50% load change, 1. 8v ou tp ut ty pe s 64(160) tr ansient response 50% load change, 2. 5v ou tp ut ty pe s 86(145) max under-shoot 50% load change, 3. 3v ou tp ut ty pe s 84(120) mv(?) 50% load change, 5.0v output types 74(80) under voltage 1.8, 2.5 & 3.3v output types 4.0 lock out 5.0 v output types 5.0 v start delay v in min to v in max 100 ms esd 400vdc from 100pf capacitor meets mil-std-833e via 1500 ? resistance method 3015.7 mean time to failure (mttf) 2 part no 25? 85? units nga10s15018 1464 512 nga10s15025 1463 512 khrs nga10s15033 1463 512 nga10s15050 1461 512 transient response time for v out to be within 1% of v nom where: v nom = v out 25% +v out 75% 2 over-shoot/under-shoot max deviation from final steady state output. start delay t ypical rise time (ms) after control pin high with valid input. external capacitance external capacitors are necessary in order to guarantee stability and full parametric performance over the full line and load range. all parts have been tested and characterised using the following values and test circuit. test circuit valu e 1 c in c out 100?, 50v 100?, 10v ++ c out c in v in v out gnd gnd nga 1 specifications typical at t a =25?, nominal input voltage and rated output current unless otherwise specified. 2 accuracy of adjustment is subject to tolerance of resistors and initial output accuracy. contacts. to enable the device output the shutdown pin should be left floating or taken no less than +1.5v to max (+28v). if the shutdown pin is to be connected to a long wire, it is recommended that a capacitor (10nf) decouples the shutdown pin to the 0v in order to avoid the risk of injecting noise into the device circuit. shutdown when the shutdown pin is shorted to the 0v, the device s output will be disabled. to shutdown the device the pin should be taken below 0.8v using either an open collector pull down or by using isolated relay a resistor (r d ) between the trim pin and the output pin will adjust the output voltage between +5v to +1.8v. 1 = (22(1.028v o ?)) ? ?.011 r d a resistor (r u ) between the trim pin and the 0v pin will adjust the device output from +5v to +5.5v. 1 = (1.02v o )? r u 91 0.0455 voltage trimming the trimming (adjust) input on the device allows output voltage adjustment to within ?% 2 of the desired v out using a resistor with a value determined by the following equations. when open circuit, the output will be +5v. nga nga off on bc182 or equiv 10nf (optional) ttl 1k ? v in v adj sd 0v v out r d nga v in v adj sd 0v v out r u
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