1 of 6 1 description the IW3623 is a high-performance ac/dc off-line power supply controller for led luminaires. the IW3623 combines power factor correction and led current regulation into one controller. it achieves pf > 0.95 and thd < 10% for 100C277v ac input voltage range. the IW3623 operates in quasi-resonant mode to provide high effciency . the device uses dialogs advanced primaccurate ? primary-side sensing technology to achieve excellent line and load regulation without a secondary-feedback circuit. in addition, the IW3623s pulse-by-pulse waveform analysis technology allows accurate led current regulation. the IW3623 maintains stability over all operating conditions without the need for loop compensation components. 2 features isolated ac/dc off-line led driver power factor > 0.95 for wide input voltage range 100 C 277v ac total harmonic distortion (thd) < 10% under 5% 100hz/120hz output current ripple resonant control to achieve high effciency led current foldback with external ntc small size design x small size input bulk capacitor x small size output capacitor x small transformer 3 applications non-dimmable led lamps and luminaires optimized for up to 45w output power primaccurate ? primary-side sensing eliminates the need for optocoupler feedback and simplifes design tight led current regulation 5% under 0.5 second start-up time hot-plug led module support multiple protection features: x led open circuit protection x single-fault protection x over-current protection x led short-circuit protection x current sense-resistor-short-circuit protection x input over-voltage and brown-out protection IW3623 ac/dc digital power controller for high power factor dimmable led drivers rev. 1.6 product summary ? 2016 dialog semiconductor www.dialog-semiconductor.com 25-may-2016
2 of 6 figure 3.1 : IW3623 typical application circuit ac input 1 14 cfg v in b drv IW3623 10 11 12 13 5 8 9 7 6 4 3 2 bi sense agnd pgnd v t fv sense fi sense f drv v cc asu v cb bv sense v out rtn ntc boost converter flyback converter IW3623 ac/dc digital power controller for high power factor dimmable led drivers rev. 1.6 product summary ? 2016 dialog semiconductor www.dialog-semiconductor.com 25-may-2016
3 of 6 4 pinout description pin number pin name type pin description 1 bv sense analog input boost inductor voltage feedback 2 v in analog input rectifed ac line voltage feedback 3 bi sense analog input boost current sense (used for cycle-by-cycle peak current limit) 4 b drv output base drive for boost bjt 5 cfg analog in/out chooses input start-up voltage and brown-out shutdown voltage 6 asu output active start-up control 7 v cc power power supply for control logic and voltage sense for power-on reset circuitry. a decoupling capacitor of 0.1f or so should be connected between the v cc pin and gnd. 8 pgnd ground power ground 9 agnd ground signal ground 10 f drv output gate drive for fyback mosfet 11 fi sense analog input primary current sense (used for cycle-by-cycle peak current control and limit) 12 fv sense analog input auxiliary voltage sense (used for primary-side regulation and zvs) 13 v t analog input output power limit and shutdown control 14 v cb analog input boost output voltage feedback figure 4.1 : 14-lead soic package IW3623 1 2 3 14 13 12 4 11 v cb v in bi sense b drv fv sense fi sense bv sense v t 5 6 7 10 9 8 f drv asu v cc pgnd cfg agnd IW3623 ac/dc digital power controller for high power factor dimmable led drivers rev. 1.6 product summary ? 2016 dialog semiconductor www.dialog-semiconductor.com 25-may-2016
4 of 6 parameter symbol value units dc supply voltage range (pin 7) v cc -0.3 to 18 v f drv output (pin 10) -0.3 to 18 v b drv output (pin 4) -0.3 to 4.0 v cfg input (pin 5) -0.3 to 4.0 v cfg output (pin 5) -0.3 to 18 v fv sense input (pin 12, i 10ma) -0.7 to 4.0 v bv sense input (pin 1, i 3ma) -0.7 to 4.0 v v in input (pin 2) -0.3 to 18 v v cb input (pin 14) -0.3 to 18 v fi sense input (pin 11) -0.3 to 4.0 v bi sense input (pin 3) -0.3 to 4.0 v asu output (pin 6) -0.3 to 18 v v t input (pin 13) -0.3 to 4.0 v maximum junction temperature t jmax 150 c operating junction temperature t jopt -40 to 150 c storage temperature t stg -65 to 150 c thermal resistance junction-to-pcb board surface temperature jb 45 c/w esd rating per jedec jesd22-a114 2,000 v latch-up test per jesd78a 100 ma absolute maximum ratings are the parameter values or ranges which can cause permanent damage if exceeded. 5 absolute maximum ratings IW3623 ac/dc digital power controller for high power factor dimmable led drivers rev. 1.6 product summary ? 2016 dialog semiconductor www.dialog-semiconductor.com 25-may-2016
5 of 6 part no. options package description IW3623-00 soic-14 tape & reel 1 note 1: tape & reel packing quantity is 2,500/reel. minimum ordering quantity is 2,500. 6 physical dimensions compliant to jedec standard ms12f controlling dimensions are in inches; millimeter dimensions are for reference only this product is rohs compliant and halide free. soldering temperature resistance: [a] package is ipc/jedec std 020d moisture sensitivity level 1 [b] package exceeds jedec std no. 22-a111 for solder immersion resistance; package can withstand 10 s immersion < 260?c dimension d does not include mold flash, protrusions or gate burrs. mold flash, protrusions or gate burrs shall not exceed 0.15 mm per end. dimension e does not include interlead flash or protrusion. interlead flash or protrusion shall not exceed 0.25 mm per side. the package top may be smaller than the package bottom. dimensions d and e are determined at the outermost extremes of the plastic body exclusive of mold flash, tie bar burrs, gate burrs and interlead flash, but including any mismatch between the top and bottom of the plastic body. 14-lead soic package coplanarity 0.10 (0.004) 14 8 7 1 seating plane a1 e1 e b d e a c l top view side views inches symbol millimeters min 0.004 a1 max min max 0.010 0.10 0.25 0.053 a 0.069 1.35 1.75 0.013 b 0.020 0.33 0.51 0.007 c 0.010 0.19 0.25 0.337 d 0.344 8.55 8.75 0.150 e1 0.157 3.80 4.00 0.050 bsc e 1.27 bsc 0.016 l 0.050 0.40 1.27 0.010 h 0.020 0.25 0.50 ccc 0.004 0.10 h x 45 0.244 5.80 6.20 e 0.228 0 0 8 8 0 ccc 0 figure 6.1 : 14-lead soic package 7 ordering information IW3623 ac/dc digital power controller for high power factor dimmable led drivers rev. 1.6 product summary ? 2016 dialog semiconductor www.dialog-semiconductor.com 25-may-2016
6 of 6 disclaimer information in this document is believed to be accurate and reliable. however, dialog semiconductor does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information. dialog semiconductor furthermore takes no responsibility whatsoever for the content in this document if provided by any information source outside of dialog semiconductor. dialog semiconductor reserves the right to change without notice the information published in this document, including without limitation the specifcation and the design of the related semiconductor products, software and applications. applications, software, and semiconductor products described in this document are for illustrative purposes only. dialog makes no representation or warranty that such applications, software and semiconductor products will be suitable for the specifed use without further testing or modifcation. unless otherwise agreed in writing, such testing or modifcation is the sole responsibility of the customer and dialog excludes all liability in this respect. customer notes that nothing in this document may be construed as a license for customer to use the dialog products, software and applications referred to in this document. such license must be separately sought by customer with dialog semiconductor. all use of dialog semiconductor products, software and applications referred to in this document are subject to dialog semiconductor s standard terms and conditions of sale , available on the company website ( www.dialog-semiconductor.com ) unless otherwise stated. dialog and the dialog logo are trademarks of dialog semiconductor plc or its subsidiaries. all other product or service names are the property of their respective owners. ? copyright 2016 dialog semiconductor. all rights reserved. rohs compliance dialog semiconductor complies to european directive 2001/95/ec and from 2 january 2013 onwards to european directive 2011/65/eu concerning restriction of hazardous substances (rohs/rohs2). dialog semiconductors statement on rohs can be found on the customer portal https://support.diasemi.com/ . rohs certifcates from our suppliers are available on request. contacting dialog semiconductor united kingdom dialog semiconductor (uk) ltd phone: +44 1793 757700 germany dialog semiconductor gmbh phone: +49 7021 805-0 the netherlands dialog semiconductor b.v. phone: +31 73 640 88 22 email info_pcbg@diasemi.com north america dialog semiconductor inc. phone: +1 408 845 8500 japan dialog semiconductor k. k. phone: +81 3 5425 4567 taiwan dialog semiconductor taiwan phone: +886 281 786 222 web site: www.dialog-semiconductor.com singapore dialog semiconductor singapore phone: +65 648 499 29 hong kong dialog semiconductor hong kong phone: +852 2607 4271 korea dialog semiconductor korea phone: +82 2 3469 8200 china dialog semiconductor (shenzhen) phone: +86 755 2981 3669 dialog semiconductor (shanghai) phone: +86 21 5424 9058 IW3623 ac/dc digital power controller for high power factor dimmable led drivers rev. 1.6 product summary ? 2016 dialog semiconductor www.dialog-semiconductor.com 25-may-2016
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