IW3636-02

iW3636 Single-Stage LED Driver with PFC Supports Wide Range of Dimming Interfaces 1 Description The iW3636 is a high-performance, single-stage AC/DC power controller for PWM dimmable LED driver with power factor (PF) correction. It supports most commonly used isolated and non-isolated flyback and buck-boost topologies. The device operates in constant on-time mode to achieve high power factor (> 0.9) across a wide load range. It uses Dialog’s PrimAccurate™ advanced primary-side sensing technology to achieve excellent output current regulation over line and load variation without the need for secondary feedback components. It also eliminates the need for external loop compensation while maintaining stability over all operating conditions. The iW3636 offers a 1% to 100% dimming range and provides a dedicated PWM dimming input pin that supports a wide variety of dimming application interfaces such as wireless modules, MCUs or 0-10V interfaces. When working with Dialog’s secondary-side SSL PWM signal generator IC, the iW339, the iW3636 adopts a proprietary technique to support accurate dimming by eliminating the impact from the non-ideal characteristics of optocouplers. In addition, the iW3636 accepts a secondary PWM or analog input to allow maximum output current configuration control. Dialog’s innovative proprietary technology maximizes the iW3636 performance in an SOIC-8 package. It provides two multi-function pins to configure IC functions such as the dimming curve and minimum dimming level. The iW3636 also enables the active start-up scheme to achieve the shortest possible start-up time without sacrificing active efficiency. By adaptively controlling the maximum operating frequency at different dimming levels, it helps eliminate audible noise and achieve low standby power consumption. 2 Features ●● Universal AC input (90VAC - 305VAC) or DC input voltage ●● Configurable minimum dimming setting: dim-to-off, 1%, 5% or 10% ●● Enhanced MOSFET driver supports up to 90W output ●● power in an SOIC-8 package ●● ●● Primary-side control achieves very tight line and load ●● regulation (±3%) ●● ●● PF > 0.9 and THD < 20% across wide output power range ●● ●● Dual dimming interfaces ●● ●● Supports fully isolated 0-10V dimming with Dialog’s iW339 interface controller ●● Low standby power ●● Wide dimming range 1% - 100% Wide VCC operating range from 7.5V to 30V Built-in over-temperature protection or by external NTC Configurable dimming curve: linear or logarithmic Built-in soft-start achieves fast and smooth start-up for all different operating conditions Active start-up scheme enables fastest possible start-up Built-in single-point fault protection features: output open, output over-voltage, output short and input voltage under-voltage protections ●● Light-off mode with soft-off feature and configurable voltage regulation value ●● Configurable 72kHz or 90kHz PWM switching frequency with quasi-resonant operation 3 Applications ●● Intelligent and wireless LED lighting ●● Dimming LED ballast Product Summary www.dialog-semiconductor.com Rev. 1.0 1 of 6 23-Feb-2019 © 2019 Dialog Semiconductor iW3636 Single-Stage LED Driver with PFC Supports Wide Range of Dimming Interfaces L VOUT N RTN U1 iW3636 OUTPUT VCC ISENSE VIN NTC/DIM2 VSENSE GND DIM1 PWM MCU or Wireless Module NTC Figure 3.1 : iW3636 Typical Application Circuit (Wireless Dimming with NTC Derating Using Depletion-mode FET as Active Start-up Device). L VOUT N RTN iW339 U1 iW3636 ISENSE NTC/DIM2 GND VCC VIN 3.3V LDO OUTPUT 3-in-1 Dimming Control 0-10V PWM VCC VIN DRV DIM or 10V 0-10V Analog 0V or VSENSE FLT SD GND CF Resistive DIM1 PWM Figure 3.2 : iW3636 Typical Application Circuit (3-in-1 Dimming with Maximum Current Modulated by the Voltage at NTC/ DIM2 Pin and Using Enhancement-mode FET as Active Start-up Device). Product Summary www.dialog-semiconductor.com Rev. 1.0 2 of 6 23-Feb-2019 © 2019 Dialog Semiconductor iW3636 Single-Stage LED Driver with PFC Supports Wide Range of Dimming Interfaces 4 Pinout Description iW3636 DIM1 8 1 NTC/DIM2 2 ISENSE VIN 7 VSENSE 6 3 GND VCC 5 4 OUTPUT Figure 4.1 : 8-Lead SOIC-8 Package Pin Number Pin Name Type 1 NTC/DIM2 Digital Input / Analog In/Out Used for external temperature sensing via an NTC resistor, or to provide a 2nd dimming interface via PWM signal or analog signal (0 – 1.8V). 2 ISENSE Analog Input Provides primary current sense for cycle-by-cycle peak current control and limit during normal operation, and serves as a configuration pin during startup. 3 GND Ground Ground. 4 OUTPUT Output Gate drive for external MOSFET switch. 5 VCC Power IC power supply. 6 VSENSE Analog Input Provides output voltage sense for primary regulation during normal operation, and serves as a configuration pin during startup. 7 VIN Analog Input Dual function. Used to control active start-up devices and sense line voltage. 8 DIM1 Digital Input PWM dimming input detection. Product Summary www.dialog-semiconductor.com Pin Description Rev. 1.0 3 of 6 23-Feb-2019 © 2019 Dialog Semiconductor iW3636 Single-Stage LED Driver with PFC Supports Wide Range of Dimming Interfaces 5 Absolute Maximum Ratings Absolute maximum ratings are the parameter values or ranges which can cause permanent damage if exceeded. Parameter Symbol Value Units DC supply voltage range (pin 5, ICC = 10mA max) VCC -0.3 to 31 V Continuous DC supply current at VCC pin ICC 20 mA VIN (pin 7) -0.3 to 31 V Output (pin 4) -0.3 to 31 V VSENSE input (pin 6, IVSENSE ≤ 10mA) -0.3 to 7 V ISENSE input (pin 2) -0.3 to 7 V NTC/DIM2 (pin 1) -0.3 to 7 V DIM1 (pin 8) -0.3 to 7 V Maximum junction temperature TJMAX 150 °C Operating junction temperature TJOPT -40 to 150 °C Storage temperature TSTG -65 to 150 °C Thermal resistance junction-to-ambient θJA 170 °C/W ±2,000 V ±100 mA ESD rating per JEDEC JS-001-2017 Latch-up test per JESD78E Product Summary www.dialog-semiconductor.com Rev. 1.0 4 of 6 23-Feb-2019 © 2019 Dialog Semiconductor iW3636 Single-Stage LED Driver with PFC Supports Wide Range of Dimming Interfaces 6 Physical Dimensions 7 Ordering Information Part no. Options Package Description iW3636-01 PWM DIM2 interface SOIC-8 Tape & Reel1 iW3636-02 NTC DIM2 interface SOIC-8 Tape & Reel1 iW3636-03 Analog DIM2 interface SOIC-8 Tape & Reel1 iW3636-31 Analog DIM2 interface (Internal OTP Disabled) SOIC-8 Tape & Reel1 Note 1: Tape and reel packing quantity is 2,500/reel. Minimum packing quantity is 2,500. Product Summary www.dialog-semiconductor.com Rev. 1.0 5 of 6 23-Feb-2019 © 2019 Dialog Semiconductor iW3636 Single-Stage LED Driver with PFC Supports Wide Range of Dimming Interfaces 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. 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Phone: +1 408 845 8500 Hong Kong Dialog Semiconductor Hong Kong Phone: +852 2607 4271 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 5769 5100 Korea Dialog Semiconductor Korea Phone: +82 2 3469 8200 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 Email info_pcbg@diasemi.com Web site: www.dialog-semiconductor.com Product Summary www.dialog-semiconductor.com Rev. 1.0 6 of 6 23-Feb-2019 © 2019 Dialog Semiconductor