IW3605-02

iW3605 AC/DC Digital Power Controller for Bleederless Single-Stage High Power Factor Dimmable LED Drivers 1 Description The iW3605 is a single-stage, high-performance AC/DC offline power supply controller for dimmable LED luminaires. It applies advanced digital control technology to detect the dimmer type, which provides dynamic impedance to interface with the dimmer and control the LED brightness at the same time. With advanced dimmer detection technology, the iW3605 can operate with most wall dimmers including leadingedge dimmers (R-type or R-L type) and trailing-edge dimmers (R-C type). In addition, the iW3605’s cycle-by-cycle waveform analysis technology allows for fast dimmer setting response. When no dimmer is on the line, the iW3605 optimizes the power factor and minimizes the current harmonic distortion to the AC line. Furthermore, in no dimmer condition, output current is regulated at nominal output current value over a wide input voltage range. The iW3605 operates the main power converter that delivers current to the LED load in quasi-resonant mode to provide high power efficiency and minimize electro-magnetic interference (EMI). The commonly utilized converter topologies for iW3605 are buck-boost and flyback. It uses Dialog’s patented PrimAccurateTM primary-side sensing technology to achieve excellent LED current regulation under different AC line and LED load voltages, without using a secondary-side feedback circuit and thus eliminating the need for an optocoupler. The iW3605 minimizes the external components count by eliminating the secondary feedback circuit and bleeder circuit. Additionally, the digital control loop of the iW3605 maintains stable over all operating conditions without the need for loop compensation components. 2 Features ●● Isolated/non-isolated offline120VAC/230VAC LED driver ●● Small solution size up to 25W output power xx Single-stage topology reduces part counts ●● Wide line frequency range (from 45Hz to 66Hz) xx 90kHz maximum switching frequency enables the use of a small transformer ●● Meets IEC61000-3-2 Current Harmonic requirement ●● Total harmonic distortion < 20% with PF > 0.92 ●● Fast start-up (< 0.5s without dimmer) ●● Wide dimmer compatibility ●● Primary-side sensing eliminates the need for optocoupler feedback xx Leading-edge dimmer ●● Compatible with NEMA SSL6 dimming curve standard xx Trailing-edge dimmer ●● No bleeder needed with output power down to 5W for 120VAC/230VAC ●● Multiple protection features that include: ●● Resonant control to achieve high efficiency (typical > 82% without dimmer) ●● Over-temperature LED current foldback xx LED open-circuit and short-circuit protection xx Over-current protection xx Over-temperature protection xx Current sensing resistor short-circuit protection ●● Tight LED current regulation (± 5%) xx AC line over-voltage protection 3 Applications ●● Dimmable LED retrofit lamps up to 25W ●● Dimmable LED luminaires up to 25W Product Summary www.dialog-semiconductor.com Rev. 1.0 1 of 6 27-June-2017 © 2017 Dialog Semiconductor iW3605 AC/DC Digital Power Controller for Bleederless Single-Stage High Power Factor Dimmable LED Drivers - AC Input Output + iW3605 VCC 8 VIN VSENSE 4 3 NC OUTPUT 6 7 GND 1 SNB 2 ISENSE 5 Figure 3.1 : iW3605 Simplified Application Circuit Product Summary www.dialog-semiconductor.com Rev. 1.0 2 of 6 27-June-2017 © 2017 Dialog Semiconductor iW3605 AC/DC Digital Power Controller for Bleederless Single-Stage High Power Factor Dimmable LED Drivers 4 Pinout Description iW3605 1 SNB VCC 8 2 VIN GND 7 3 NC OUTPUT 6 4 VSENSE ISENSE 5 Figure 4.1 : 8-Lead SOIC Package Pin Number Pin Name Type 1 SNB Output 2 VIN Analog Input 3 NC – 4 VSENSE Analog Input Auxiliary winding voltage sense 5 ISENSE Analog Input Primary side current sense 6 OUTPUT Output Gate drive for main MOSFET switch 7 GND Ground Ground 8 VCC Power Power supply for control logic Product Summary www.dialog-semiconductor.com Pin Description Gate drive for active snubber switch Rectified AC line voltage sense No connection Rev. 1.0 3 of 6 27-June-2017 © 2017 Dialog Semiconductor iW3605 AC/DC Digital Power Controller for Bleederless Single-Stage High Power Factor Dimmable LED Drivers 5 Absolute Maximum Ratings Absolute maximum ratings are the parameter values or ranges which can cause permanent damage if exceeded. Parameter Symbol Value Units VCC -0.3 to 18 V OUTPUT (pin 6) -0.3 to VCC V SNB output (pin 1) -0.3 to VCC V VSENSE input (pin 4, I ≤ 10mA) -0.7 to 4.0 V VIN input (pin 2) -0.3 to 18 V ISENSE input (pin 5) -0.3 to 4.0 V DC supply voltage range (pin 8) Maximum junction temperature TJMAX 150 °C Operating junction temperature TJOPT -40 to 150 °C Storage temperature TSTG -65 to 150 °C θJA 160 °C/W ±2,000 V 100 mA Thermal Resistance Junction-to-Ambient [Still Air] ESD rating per JEDEC JESD22-A114 Latch-up test Product Summary www.dialog-semiconductor.com Rev. 1.0 4 of 6 27-June-2017 © 2017 Dialog Semiconductor iW3605 AC/DC Digital Power Controller for Bleederless Single-Stage High Power Factor Dimmable LED Drivers 6 Physical Dimensions 8-Lead Small Outline (SOIC) Package E 8 5 1 4 H e h x 45° A1 COPLANARITY 0.10 (0.004) A2 B MIN MAX MIN MAX A 0.053 0.069 1.35 1.75 L α C Millimeters A1 0.0040 0.010 0.10 0.25 A2 0.049 0.059 1.25 1.50 B 0.014 0.019 0.35 0.49 C 0.007 0.010 0.19 0.25 D 0.189 0.197 4.80 5.00 E 0.150 0.157 3.80 4.00 e A SEATING PLANE Inches Symbol D H 0.050 BSC 1.27 BSC 0.228 0.244 5.80 6.20 h 0.10 0.020 0.25 0.50 L 0.016 0.049 0.4 1.25 α 0° 8° 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 E1 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 E1 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. 7 Ordering Information Part no. Options Package Description iW3605-021 iW3605-02C ISENSE clamp to 0.3V nominal SOIC-8 Tape & Reel2 iW3605-051 iW3605-05C ISENSE clamp to 0.5V nominal SOIC-8 Tape & Reel2 Note 1: Not recommended for new designs; use the –xxC version. Note 2: Tape and reel packing quantity is 2,500/reel. Minimum ordering quantity is 2,500. Product Summary www.dialog-semiconductor.com Rev. 1.0 5 of 6 27-June-2017 © 2017 Dialog Semiconductor iW3605 AC/DC Digital Power Controller for Bleederless Single-Stage High Power Factor Dimmable LED Drivers 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 specification 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 Semiconductor makes no representation or warranty that such applications, software and semiconductor products will be suitable for the specified use without further testing or modification. Unless otherwise agreed in writing, such testing or modification is the sole responsibility of the customer and Dialog Semiconductor 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 Semiconductor products, software and applications referred to in this document. Such license must be separately sought by customer with Dialog Semiconductor. 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Phone: +1 408 845 8500 Singapore Dialog Semiconductor Singapore Phone: +65 64 8499 29 China (Shenzhen) Dialog Semiconductor China Phone: +86 755 2981 3669 Germany Dialog Semiconductor GmbH Phone: +49 7021 805-0 Japan Dialog Semiconductor K. K. Phone: +81 3 5425 4567 Hong Kong Dialog Semiconductor Hong Kong Phone: +852 3769 5200 China (Shanghai) Dialog Semiconductor China Phone: +86 21 5424 9058 The Netherlands Dialog Semiconductor B.V. Phone: +31 73 640 8822 Taiwan Dialog Semiconductor Taiwan Phone: +886 281 786 222 Korea Dialog Semiconductor Korea Phone: +82 2 3469 8200 Email info_pcbg@diasemi.com Web site: www.dialog-semiconductor.com Product Summary www.dialog-semiconductor.com Rev. 1.0 6 of 6 27-June-2017 © 2017 Dialog Semiconductor