? semiconductor components industries, llc, 2014 december, 2014 ? rev. 2 1 publication order number: ncp785a/d ncp785a wide input voltage range 10ma ultra-low iq, high psrr linear regulator the ncp785a is a high?performance linear regulator, offering a very wide operating input voltage range of up to 450 v dc, with an output current of up to 10 ma. ideal for high input voltage applications such as industrial and home metering, home appliances. the ncp785a family offers 5% initial accuracy, extremely high?power supply rejection ratio and ultra?low quiescent current. the ncp785a is optimized for high?voltage line and load transients, making this part ideal for harsh environment applications. the ncp785a is offered in fixed output voltage options 3.3 v, 5.0 v, 12 v and 15 v. sot?89 package offers good thermal performance and help to minimize the solution size. features ? wide input voltage range: dc: up to 450 v ac: 85 v to 260 v (half?wave rectifier and 2.2 f capacitor) ? 10 ma guaranteed output current ? ultra low quiescent current: typ. 10 a (v out 5 v) ? 5% accuracy over full load, line and temperature variations ? ultra?high psrr: 70 db at 60 hz, 90 db at 100 khz ? stable with ceramic output capacitor 22 f mlcc ? thermal shutdown and current limit protection ? available in thermally enhanced sot89?3 package ? this is a pb?free device typical applications ? industrial applications, home appliances ? home metering / network application ? off?line power supplies figure 1. typical applications ncp785a gnd 2.2 f 22 f 25 v ? 450 v ncp785a gnd 2.2 f/ 450 v 22 f 85 vac ? 260 vac c in v in v in v out c out v out 3.3 v, 5 v, 12 v, 15 v v in c in v in v out c out v out 3.3 v, 5 v, 12 v, 15 v www. onsemi.com see detailed ordering and shipping information in the package dimensions section on page 9 of this data sheet. ordering information marking diagram sot?89 case 528ag a = assembly location y = year w = work week xxxxx = specific device code = pb?free package (note: microdot may be in either location) 1 ayw xxxxx 2 ta b 3 (top views) (tab is connected to pin 2)
ncp785a www. onsemi.com 2 figure 2. simplified internal block diagram + ? + ? 1.25 v vin vout gnd thermal shutdown current limit ncp785a v ref table 1. pin function description pin no. (sot?89) pin name description 1 vin supply voltage input. connect 2.2 f capacitor from vin to gnd. 2, tab gnd ground connection. 3 vout regulator output. connect 22 f or larger mlcc capacitor from vout to gnd. table 2. absolute maximum ratings rating symbol value unit input voltage (note 1) v in ?0.3 to 700 v output voltage v out ?0.3 to 18 v maximum junction temperature t j(max) 150 c storage temperature t stg ?55 to 150 c esd capability, human body model (all pins except hv pin no.1) (note 2) esd hbm 2000 v esd capability, machine model (note 2) esd mm 200 v stresses exceeding those listed in the maximum ratings table may damage the device. if any of these limits are exceeded, device function ality should not be assumed, damage may occur and reliability may be affected. 1. peak 650 v max 1 ms non repeated for 1 s 2. this device series incorporates esd protection and is tested by the following methods: esd human body model tested per aec?q100?002 (eia/jesd22?a114) esd machine model tested per aec?q100?003 (eia/jesd22?a115) latch?up current maximum rating tested per jedec standard: jesd78. table 3. thermal characteristics rating symbol value unit thermal characteristics, sot?89 thermal resistance, junction?to?air r ja 79 c/w
ncp785a www. onsemi.com 3 table 4. electrical characteristics, v out = 3.3 v (?40 c t j 85 c; v in = 340 v; i out = 100 a, c in = 2.2 f, c out = 22 f, unless otherwise noted. typical values are at t j = +25 c.) (note 3) parameter test conditions symbol min typ max unit operating input voltage dc v in 25 450 v output voltage accuracy t j = 25 c, iout = 100 a, 25 v vin 450 v v out 3.1515 3.3 3.4485 v ?40 c t j 85 c, iout = 100 a, 25 v vin 450 v v out 3.135 3.3 3.465 v line regulation 25 v vin 450 v, iout = 100 a reg line ?0.5 0.2 +0.5 % load regulation 100 a i out 10 ma, vin = 35 v reg load ?1.0 0.6 +1.0 % maximum output current (note 4) 35 v vin 450 v i out 10.5 ma quiescent current i out = 0, 25 v vin 450 v i q 7.5 14 a ground current (note 4) 25 v vin 450 v 0 < i out 10 ma i gnd 15 a power supply rejection ratio vin = 340 v dc +1 vpp modulation, iout = 100 a f = 1 khz psrr 70 db noise f = 100 hz to 100 khz vin = 340 v dc , iout = 100 a v noise 240 vrms thermal shutdown temperature (note 5) temperature increasing from t j = +25 c t sd 145 c thermal shutdown hysteresis (note 5) temperature falling from t sd t sdh ? 10 ? c table 5. electrical characteristics, v out = 5.0 v (?40 c t j 85 c; v in = 340 v; i out = 100 a, c in = 2.2 f, c out = 22 f, unless otherwise noted. typical values are at t j = +25 c.) (note 3) parameter test conditions symbol min typ max unit operating input voltage dc v in 50 450 v output voltage accuracy t j = 25 c, iout = 100 a, 50 v vin 450 v v out 4.775 5.0 5.225 v ?40 c t j 85 c, iout = 100 a, 50 v vin 450 v v out 4.75 5.0 5.25 v line regulation 50 v vin 450 v, iout = 100 a reg line ?0.5 0.2 +0.5 % load regulation 100 a i out 10 ma, vin = 55 v reg load ?1.0 0.62 +1.0 % maximum output current (note 4) 55 v vin 450 v i out 10.5 ma quiescent current i out = 0, 50 v vin 450 v i q 16 21 a ground current (note 4) 50 v vin 450 v 0 < i out 10 ma i gnd 23 a power supply rejection ratio vin = 340 v dc +1 vpp modulation, iout = 100 a f = 1 khz psrr 70 db noise f = 100 hz to 100 khz vin = 340 v dc , iout = 100 a v noise 300 vrms thermal shutdown temperature (note 5) temperature increasing from t j = +25 c t sd 145 c thermal shutdown hysteresis (note 5) temperature falling from t sd t sdh ? 10 ? c product parametric performance is indicated in the electrical characteristics for the listed test conditions, unless otherwise noted. product performance may not be indicated by the electrical characteristics if operated under different conditions. 3. performance guaranteed over the indicated operating temperature range by design and/or characterization production tested at t j = t a = 25 c. low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible . 4. a proper heatsinking and/or low duty cycle pulse techniques are used to operate the device within the safe operating area. 5. guaranteed by design
ncp785a www. onsemi.com 4 table 6. electrical characteristics, v out = 12 v (?40 c t j 85 c; v in = 340 v; i out = 100 a, c in = 2.2 f, c out = 22 f, unless otherwise noted. typical values are at t j = +25 c.) (note 6) parameter test conditions symbol min typ max unit operating input voltage dc v in 55 450 v output voltage accuracy t j = 25 c, iout = 100 a, 55 v vin 450 v v out 11.460 12 12.540 v ?40 c t j 85 c, iout = 100 a, 55 v vin 450 v v out 11.4 12 12.6 v line regulation 55 v vin 450 v, iout = 100 a reg line ?0.5 0.1 +0.5 %/v load regulation 100 a i out 10 ma, vin = 65 v reg load ?1.0 0.66 +1.0 % maximum output current (note 7) 55 v vin 450 v i out 10.5 ma quiescent current i out = 0, 55 v vin 450 v i q 17 22 a ground current (note 7) 55 v vin 450 v 0 < i out 10 ma i gnd 25 a power supply rejection ratio vin = 340 v dc +1 vpp modulation, iout = 100 a f = 1 khz psrr 70 db noise f = 100 hz to 100 khz vin = 340 v dc , iout = 100 a v noise 420 vrms thermal shutdown temperature (note 8) temperature increasing from t j = +25 c t sd 145 c thermal shutdown hysteresis (note 8) temperature falling from t sd t sdh ? 10 ? c table 7. electrical characteristics, v out = 15 v (?40 c t j 85 c; v in = 340 v; i out = 100 a, c in = 2.2 f, c out = 22 f, unless otherwise noted. typical values are at t j = +25 c.) (note 6) parameter test conditions symbol min typ max unit operating input voltage dc v in 60 450 v output voltage accuracy t j = 25 c, iout = 100 a, 60 v vin 450 v v out 14.325 15 15.675 v ?40 c t j 85 c, iout = 100 a, 60 v vin 450 v v out 14.25 15 15.75 v line regulation 60 v vin 450 v, iout = 100 a reg line ?0.5 0.1 +0.5 %/v load regulation 100 a i out 10 ma, vin = 65 v reg load ?1.0 0.66 +1.0 % maximum output current (note 7) 65 v vin 450 v i out 10.5 ma quiescent current i out = 0, 60 v vin 450 v i q 18 22 a ground current (note 7) 60 v vin 450 v 0 < i out 10 ma i gnd 25 a power supply rejection ratio vin = 340 v dc +1 vpp modulation, iout = 100 a f = 1 khz psrr 70 db noise f = 100 hz to 100 khz vin = 340 v dc , iout = 100 a v noise 500 vrms thermal shutdown temperature (note 8) temperature increasing from t j = +25 c t sd 145 c thermal shutdown hysteresis (note 8) temperature falling from t sd t sdh ? 10 ? c product parametric performance is indicated in the electrical characteristics for the listed test conditions, unless otherwise noted. product performance may not be indicated by the electrical characteristics if operated under different conditions. 6. performance guaranteed over the indicated operating temperature range by design and/or characterization production tested at t j = t a = 25 c. low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible . 7. a proper heatsinking and/or low duty cycle pulse techniques are used to operate the device within the safe operating area. 8. guaranteed by design
ncp785a www. onsemi.com 5 typical characteristics figure 3. output voltage vs. temperature figure 4. output voltage vs. temperature temperature ( c) temperature ( c) 80 60 40 20 0 ?20 ?40 3.304 3.305 3.306 3.307 3.308 3.309 3.310 80 60 40 20 0 ?20 ?40 5.030 5.035 5.040 5.045 5.050 5.055 figure 5. output voltage vs. temperature temperature ( c) 80 60 40 20 0 ?20 ?40 11.95 11.96 11.97 11.99 12.00 output voltage (v) output voltage (v) output voltage (v) 11.98 v in = 250 v v in = 350 v v in = 450 v c in = 2.2 f c out = 22 f i out = 100 a ncp785ah33t1g v in = 50 v v in = 100 v ? 450 v c in = 2.2 f c out = 22 f i out = 100 a ncp785ah50t1g v in = 250 v v in = 350 v v in = 450 v c in = 2.2 f c out = 22 f i out = 100 a ncp785ah12t1g v in = 150 v v in = 50 v figure 6. output voltage vs. temperature temperature ( c) 80 60 40 20 0 ?20 ?40 15.015 15.020 15.025 15.035 15.040 15.050 15.055 15.060 output voltage (v) 15.030 15.045 v in = 250 v v in = 350 v v in = 450 v c in = 2.2 f c out = 22 f i out = 100 a ncp785a150t1g v in = 150 v v in = 60 v figure 7. output voltage vs. input voltage input voltage (v) 400 300 250 200 150 100 50 0 3.3082 3.3083 3.3084 3.3085 3.3086 3.3087 3.3088 figure 8. output voltage vs. input voltage input voltage (v) 400 350 300 250 200 150 100 50 5.0425 5.0435 5.0445 5.0455 5.0465 5.0475 5.0485 output voltage (v) output voltage (v) 450 350 450 c in = 2.2 f c out = 22 f i out = 100 a ncp785ah33t1g c in = 2.2 f c out = 22 f t a = 25 c i out = 100 a ncp785ah50t1g
ncp785a www. onsemi.com 6 typical characteristics figure 9. output voltage vs. input voltage input voltage (v) 400 350 300 200 150 100 50 11.960 11.965 11.970 11.975 11.980 11.985 figure 10. output voltage vs. input voltage input voltage (v) 400 350 300 250 200 150 100 50 15.040 15.042 15.044 15.046 15.048 15.050 output voltage (v) output voltage (v) 450 c in = 2.2 f c out = 22 f t a = 25 c i out = 100 a ncp785ah120t1g c in = 2.2 f c out = 22 f t a = 25 c i out = 100 a NCP785AH150T1G 250 450 figure 11. quiescent current vs. input voltage figure 12. quiescent current vs. input voltage input voltage (v) input voltage (v) 400 350 300 200 150 100 50 0 6.0 6.2 6.6 6.8 7.2 7.4 7.8 8.0 400 350 300 250 200 150 100 50 12 13 14 15 16 17 18 quiescent current ( a) quiescent current ( a) 250 450 6.4 7.0 7.6 450 c in = 2.2 f c out = 22 f i out = 0 ncp785ah33t1g t a = ?40 c t a = 25 c t a = 85 c c in = 2.2 f c out = 22 f i out = 0 ncp785ah50t1g t a = ?40 c t a = 25 c t a = 85 c
ncp785a www. onsemi.com 7 typical characteristics figure 13. quiescent current vs. input voltage input voltage (v) 400 350 300 200 150 100 50 13 15 16 17 18 19 20 figure 14. quiescent current vs. input voltage figure 15. output voltage vs. output current input voltage (v) output current (ma) 400 350 300 200 150 100 50 0 16 17 18 19 20 21 22 23 9 8 6 5 4 2 1 0 3.25 3.26 3.27 3.28 3.29 3.30 3.31 3.32 quiescent current ( a) quiescent current ( a) output voltage (v) 250 450 14 250 450 3710 c in = 2.2 f c out = 22 f i out = 0 ncp785ah120t1g t a = ?40 c t a = 25 c t a = 85 c c in = 2.2 f c out = 22 f i out = 0 NCP785AH150T1G t a = ?40 c t a = 25 c t a = 85 c v in = 250 v v in = 350 v v in = 450 v c in = 2.2 f c out = 22 f t a = 25 c ncp785ah33t1g v in = 150 v v in = 50 v v in = 25 v figure 16. output voltage vs. output current output current (ma) 9 7 6 5 4 2 1 0 4.95 5.00 5.05 5.10 5.15 output voltage (v) 3810 v in = 200 v v in = 350 v v in = 450 v c in = 2.2 f c out = 22 f t a = 25 c ncp785ah50t1g v in = 100 v v in = 50 v figure 17. output voltage vs. output current figure 18. output voltage vs. output current output current (ma) output current (ma) 9 7 6 5 4 2 1 0 11.89 11.91 11.94 11.96 11.99 10 8 6 4 2 0 14.80 14.85 14.90 14.95 15.00 15.05 15.10 output voltage (v) output voltage (v) 3810 v in = 200 v v in = 350 v v in = 450 v c in = 2.2 f c out = 22 f t a = 25 c ncp785ah120t1g v in = 100 v v in = 55 v v in = 200 v v in = 300 v v in = 450 v c in = 2.2 f c out = 22 f t a = 25 c NCP785AH150T1G v in = 100 v v in = 60 v v in = 350 v 11.90 11.92 11.93 11.95 11.97 11.98 v in = 150 v v in = 300 v
ncp785a www. onsemi.com 8 typical characteristics figure 19. output noise density vs. frequency figure 20. output noise density vs. frequency frequency (hz) frequency (hz) 1m 100k 10k 1k 100 10 0 0.5 1.0 2.0 3.0 3.5 4.0 5.0 1m 100k 10k 1k 100 10 0 1 2 3 4 6 7 8 figure 21. output noise density vs. frequency frequency (hz) 1m 100k 10k 1k 100 10 0 1 3 5 6 8 ( v/ hz ) ( v/ hz ) ( v/ hz ) 1.5 2.5 4.5 5 c in = 2.2 f c out = 22 f i out = 100 a v in = 340 v t a = 25 c ncp785ah33t1g c in = 2.2 f c out = 22 f i out = 100 a v in = 340 v t a = 25 c ncp785ah50t1g c in = 2.2 f c out = 22 f i out = 100 a v in = 340 v t a = 25 c ncp785ah50t1g figure 22. output noise density vs. frequency frequency (hz) 1m 100k 10k 1k 100 10 0 5 10 15 20 25 ( v/ hz ) c in = 2.2 f c out = 22 f i out = 100 a v in = 340 v t a = 25 c NCP785AH150T1G 2 4 7
ncp785a www. onsemi.com 9 application information the typical application circuit for the ncp785a device is shown below. figure 23. typical application schematic ncp785a v in v out gnd c in 2.2 f c out 22 f v in 25 v ? 450 v v out 3.3 v, 5 v, 15 v input decoupling (c1) a 1 f capacitor either ceramic or electrolytic is recommended and should be connected close to the input pin of ncp785a. higher value 2.2 f is necessary to sustain the required minimum input voltage at full load for ac voltage as low as 85 v with half wave rectifier. output decoupling (c2) the ncp785a regulator does not require any specific equivalent series resistance (esr). thus capacitors exhibiting esrs ranging from a few m up to 0.5 can be used safely. the minimum decoupling value is 22 f. the regulator accepts ceramic chip capacitors as well as tantalum devices or low esr electrolytic capacitors. larger values improve noise rejection and load transient response. layout recommendations please be sure the v in and gnd lines are sufficiently wide. when the impedance of these lines is high, there is a chance to pick up noise or to cause the malfunction of regulator. set external components, especially the output capacitor, as close as possible to the circuit, and make leads as short as possible. thermal as power across the ncp785a increases, it might become necessary to provide some thermal relief. the maximum power dissipation supported by the device is dependent upon board design layout and used package. mounting pad configuration on the pcb, the board material, and also the ambient temperature affect the rate of temperature rise for the part. this is stating that when the ncp785a has good thermal conductivity through the pcb, the junction temperature will be relatively low with high power dissipation applications. ordering information part number output voltage marking package shipping ? ncp785ah33t1g 3.3 v aa sot?89 (pb?free) 1000 / tape & reel ncp785ah50t1g 5 v ac ncp785ah120t1g 12 v aj NCP785AH150T1G 15 v ad ?for information on tape and reel specifications, including part orientation and tape sizes, please refer to our tape and reel packaging specifications brochure, brd8011/d.
ncp785a www. onsemi.com 10 package dimensions sot?89, 3 lead case 528ag issue o mounting footprint* recommended c 0.10 top view side view bottom view c h 1 dim min max millimeters a 1.40 1.60 b1 0.46 0.55 b 0.38 0.47 c 0.40 0.44 d 4.40 4.60 d2 1.60 1.90 e 2.40 2.60 notes: 1. dimensioning and tolerancing per asme y14.5m, 1994. 2. controlling dimension: millimeters. 3. lead thickness includes lead finish. 4. dimensions d and e do not include mold flash, protrusions, or gate burrs. 5. dimensions l, l2, d2, and h are measured at datum plane c. 6. center lead contour may vary within the region defined by dimension e. 7. dimension d2 is defined at its widest point. e l 0.89 1.20 h 4.05 4.25 *for additional information on our pb?free strategy and soldering details, please download the on semiconductor soldering and mounting techniques reference manual, solderrm/d. d e a c 23 b b1 l2 d2 l 0.58 dimensions: millimeters 1 2x 1.50 0.86 1.57 4.45 2x 0.50 2.00 12 3 a b e e 1.50 bsc package outline on semiconductor and the are registered trademarks of semiconductor components industries, llc (scillc) or its subsidia ries in the united states and/or other countries. scillc owns the rights to a number of pa tents, trademarks, copyrights, trade secret s, and other intellectual property. a listin g of scillc?s product/patent coverage may be accessed at www.onsemi.com/site/pdf/patent?marking.pdf. scillc reserves the right to make changes without further notice to any product s herein. scillc makes no warranty, representation or guarantee regarding the suitability of its products for any part icular purpose, nor does sci llc assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. ?typi cal? parameters which may be provided in scillc data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. all operating param eters, including ?typicals? must be validated for each customer application by customer?s technical experts. scillc does not convey any license under its patent rights nor the right s of others. scillc products are not designed, intended, or authorized for use as components in systems intended for surgic al implant into the body, or other applications intended to s upport or sustain life, or for any other application in which the failure of the scillc product could create a situation where personal injury or death may occur. should buyer purchase or use scillc products for any such unintended or unauthorized application, buyer s hall indemnify and hold scillc and its officers , employees, subsidiaries, affiliates, and dist ributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that scillc was negligent regarding the design or manufac ture of the part. scillc is an equal opportunity/affirmative action employer. this literature is subject to all applicable copyright laws and is not for resale in any manner. p ublication ordering information n. american technical support : 800?282?9855 toll free usa/canada europe, middle east and africa technical support: phone: 421 33 790 2910 japan customer focus center phone: 81?3?5817?1050 ncp785a/d literature fulfillment : literature distribution center for on semiconductor p.o. box 5163, denver, colorado 80217 usa phone : 303?675?2175 or 800?344?3860 toll free usa/canada fax : 303?675?2176 or 800?344?3867 toll free usa/canada email : orderlit@onsemi.com on semiconductor website : www.onsemi.com order literature : http://www.onsemi.com/orderlit for additional information, please contact your loc al sales representative
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