? semiconductor components industries, llc, 2015 march, 2015 ? rev. p1 1 publication order number: ncp785/d ncp785 product preview wide input voltage range 5ma ultra-low iq, high psrr linear regulator the ncp785 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 5 ma. ideal for high input voltage applications such as industrial and home metering, home appliances. the ncp785 family offers 5% initial accuracy, extremely high?power supply rejection ratio and ultra?low quiescent current. the ncp785 family is optimized for high?voltage line and load transients, making them ideal for harsh environment applications. the ncp785 is offered in fixed output voltage options 3.3 v and 5.0 v. sot?223 and sot?89 packages offer good thermal performance and help to minimize the overall 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) ? 5 ma guaranteed output current ? ultra low quiescent current: typ. 6 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, sot?223 packages ? this is a pb?free device typical applications ? industrial applications, home appliances ? home metering / network application ? off?line power supplies figure 1. typical applications ncp785 gnd 2.2 f 22 f ncp785 gnd 2.2 f/ 450 v 22 f 15 v ? 450 v v in c in v in v out c out v out 3.3 v, 5 v v in v in v out c out v out 3.3 v, 5 v 85 vac ? 260 vac c in this document contains information on a product under development. on semiconductor reserves the right to change or discontinue this product without notice. www. onsemi.com see detailed ordering and shipping information in the package dimensions section on page 4 of this data sheet. ordering information marking diagrams sot?89 h suffix case 1213 sot?223 s suffix case 318e 1 a = assembly location y = year w = work week xxxxx = specific device code = pb?free package ayw xxxxx (note: microdot may be in either location) 1 ayw xxxxx 23 4 2 ta b 3 (top views) (tab is connected to pin 2)
ncp785 www. onsemi.com 2 figure 2. simplified internal block diagram enb enb + ? + ? 1.25 v vin vout gnd thermal shutdown enb enb current limit ncp785 v ref table 1. pin function description pin no. (sot?223) pin no. (sot89?3) pin name description 1 1 vin supply voltage input. connect 2.2 f capacitor from vin to gnd. 2 ? nc this pin is not internally connected to the ic 3 3 vout regulator output. connect 22 f or larger mlcc capacitor from vout to gnd. 4 2,4 gnd ground connection. table 2. pin assignment pin no: sot223 sot89?3 1 vin vin 2 n/c gnd 3 vout vout 4 gnd ? ta b it is recommended that the tab is connected to the ground plane on the pcb or otherwise is left open. gnd table 3. 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 4. thermal characteristics rating symbol value unit thermal characteristics, sot?223 thermal resistance, junction?to?air r ja 73 c/w thermal characteristics, sot89?3 thermal resistance, junction?to?air r ja 79 c/w
ncp785 www. onsemi.com 3 table 5. electrical characteristics, v out = 3.3 v (?40 c t j 85 c; v in = 340 v; i out = 100 a, c in = 1 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 14 450 v output voltage accuracy t j = 25 c, iout = 100 a, 14 v vin 450 v v out 3.1515 3.3 3.4485 v ?40 c t j 85 c, iout = 100 a, 14 v vin 450 v v out 3.135 3.3 3.465 v line regulation 14 v vin 450 v, iout = 100 a reg line ?0.5 0.2 +0.5 % load regulation 100 a i out 6 ma, vin = 14 v reg load ?0.5 0.37 +0.5 % maximum output current (note 4) 14 v vin 450 v i out 6.8 ma quiescent current i out = 0, 14 v vin 450 v i q 5.7 8.4 a ground current (note 4) 14 v vin 450 v 0 < i out 5 ma i gnd 8.5 a power supply rejection ratio vin = 340 v dc +1 vpp modulation, iout = 100 a f = 1 khz psrr 70 db noise f = 10 khz to 100 khz vin = 340 v dc , iout = 100 a v noise 280 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 6. electrical characteristics, v out = 5.0 v (?40 c t j 85 c; v in = 340 v; i out = 100 a, c in = 1 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 16 450 v output voltage accuracy t j = 25 c, iout = 100 a, 16 v vin 450 v v out 4.775 5.0 5.225 v ?40 c t j 85 c, iout = 100 a, 16 v vin 450 v v out 4.75 5.0 5.25 v line regulation 16 v vin 450 v, iout = 100 a reg line ?0.5 0.2 +0.5 % load regulation 100 a i out 3.3 ma, vin = 16 v reg load ?0.5 0.38 +0.5 % maximum output current (note 4) 16 v vin 450 v i out 3.3 ma quiescent current i out = 0, 16 v vin 450 v i q 5.7 8.4 a ground current (note 4) 16 v vin 450 v 0 < i out 3.3 ma i gnd 8.5 a power supply rejection ratio vin = 340 v dc +1 vpp modulation, iout = 100 a f = 1 khz psrr 70 db noise f = 10 khz to 100 khz vin = 340 v dc , iout = 100 a v noise 280 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
ncp785 www. onsemi.com 4 application information the typical application circuit for the ncp785 device is shown below. ncp785 v in v out gnd c in 2.2 f c out 22 f v in 15v ? 450v v out 3.3v, 5v input decoupling (c1) a 1 f capacitor either ceramic or electrolytic is recommended and should be connected close to the input pin of ncp785. higher value 2.2 f is necessary to keep the input voltage above the required minimum input voltage at full load for ac voltage as low as 85 v with half wave rectifier. output decoupling (c2) the ncp785 is a stable regulator and 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 ncp785 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 ncp785 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 case package marking shipping ncp785h33t1g 3.3 v tbd sot89?3 tbd NCP785H50T1G 5 v tbd sot89?3 tbd ncp785st33t3g 3.3 v tbd sot223?4 hva ncp785st50t3g 5 v tbd sot223?4 hvc
ncp785 www. onsemi.com 5 package dimensions case 1213?02 issue c sot?89 (3?lead) k l g h m 0.10 t s b s a m 0.10 t s b s a d e 2 pl c j ?a? ?b? f ?t? seating plane notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: millimeters 3. 1213-01 obsolete, new standard 1213-02. dim a min max min max inches 4.40 4.60 0.173 0.181 millimeters b 2.40 2.60 0.094 0.102 c 1.40 1.60 0.055 0.063 d 0.37 0.57 0.015 0.022 e 0.32 0.52 0.013 0.020 f 1.50 1.83 0.059 0.072 g 1.50 bsc 0.059 bsc h 3.00 bsc 0.118 bsc j 0.30 0.50 0.012 0.020 k 0.80 --- 0.031 --- l --- 4.25 --- 0.167
ncp785 www. onsemi.com 6 package dimensions sot?223 (to?261) case 318e?04 issue n a1 b1 d e b e e1 4 123 0.08 (0003) a l1 c notes: 1. dimensioning and tolerancing per asme y14.5m, 1994. 2. controlling dimension: inch. 1.5 0.059 mm inches scale 6:1 3.8 0.15 2.0 0.079 6.3 0.248 2.3 0.091 2.3 0.091 2.0 0.079 soldering footprint h e dim a min nom max min millimeters 1.50 1.63 1.75 0.060 inches a1 0.02 0.06 0.10 0.001 b 0.60 0.75 0.89 0.024 b1 2.90 3.06 3.20 0.115 c 0.24 0.29 0.35 0.009 d 6.30 6.50 6.70 0.249 e 3.30 3.50 3.70 0.130 e 2.20 2.30 2.40 0.087 0.85 0.94 1.05 0.033 0.064 0.068 0.002 0.004 0.030 0.035 0.121 0.126 0.012 0.014 0.256 0.263 0.138 0.145 0.091 0.094 0.037 0.041 nom max l1 1.50 1.75 2.00 0.060 6.70 7.00 7.30 0.264 0.069 0.078 0.276 0.287 h e ? ? e1 0 1 0 0 1 0 l l 0.20 ??? ??? 0.008 ??? ??? style 11: pin 1. mt 1 2. mt 2 3. gate 4. mt 2 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 ncp785/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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