iW1699B Off-Line Digital Green-Mode Quasi-Resonant PWM Controller 1 Description The iW1699B is a high performance AC/DC power supply controller that uses digital control technology to build peak current mode PWM flyback power supplies. The device operates in quasi-resonant mode to provide high efficiency along with a number of key built-in protection features while minimizing the external component count, simplifying EMI design and lowering the total bill of material cost. The iW1699B removes the need for secondary feedback circuit while achieving excellent line and load regulation. It also eliminates the need for loop compensation components while maintaining stability over all operating conditions. Pulse-by-pulse waveform analysis allows for a loop response that is much faster than traditional solutions, resulting in improved dynamic load response. The built-in power limit function enables optimized transformer design in universal off-line applications and allows for a wide input voltage range. Dialog’s innovative proprietary technology ensures that power supplies built with the iW1699B can achieve both the highest average active efficiency and less than 30mW no-load power consumption, and have fast dynamic load response in a compact form factor in typical 5V, 2.4A 12W applications. The active start-up scheme enables the shortest possible start-up time without sacrificing no-load power loss. 2 Features ●● No-load power consumption < 30mW at 230VAC along ●● Adaptive multi-mode PWM/PFM control improves with fast dynamic load response and short turn-on efficiency delay in typical 5V, 2.4A 12W compact adapter/charger ●● Complies with DoE External Power Supply and EU applications CoC Version 5, Tier 2 standards ●● Tight constant-voltage and constant current regulation ●● Built-in single-point fault protections against output across line and load range short-circuit, output over-voltage and output over●● Primary-side feedback eliminates opto-isolators and current simplifies design ●● Dedicated pins for external over-temperature ●● Intelligent low power management achieves ultra-low protection and over-voltage protection, with latch operating current (~250μA) at no-load function available ●● Proprietary optimized 89kHz maximum PWM switching ●● SmartDefender™ smart hiccup technology helps frequency with quasi-resonant operation achieves best to address issues of soft shorts in cables and size, efficiency and common mode noise connectors by effectively reducing the average output power at fault conditions without latch ●● User-configurable 5-level cable drop compensation provides design flexibility ●● Optional on-chip internal over-temperature protection ●● EZ-EMI® design enhances manufacturability ●● No audible noise over entire operating range 3 Applications ●● Compact AC/DC adapters or chargers for media tablets and smart phones ●● AC/DC adapters for consumer electronics Product Summary www.dialog-semiconductor.com Rev. 1.7 1 of 6 06-Dec-2017 © 2017 Dialog Semiconductor iW1699B Off-Line Digital Green-Mode Quasi-Resonant PWM Controller L VOUT + + RTN N U1 iW1699B NTC VCC 8 1 VSENSE 2 SD 3 CFG OUTPUT 6 4 ASU ISENSE 5 + GND 7 R CDC Figure 3.1 : iW1699B Typical Application Circuit (Using Depletion Mode N-FET as Active Start-up Device) (Achieving < 30mW No-load Power Consumption in 5V, 2.4A 12W Adapter Designs) L N VOUT + + RTN U1 iW1760B NTC 1 VSENSE 2 SD 3 CFG OUTPUT 6 4 ASU ISENSE 5 R CDC VCC 8 + GND 7 Figure 3.2 : iW1699B Typical Application Circuit (Alternative Circuit without Using Active Start-up Device) Note: Pin 4 (ASU) can be left unconnected if an active start-up device is not needed in the application circuit. Product Summary www.dialog-semiconductor.com Rev. 1.7 2 of 6 06-Dec-2017 © 2017 Dialog Semiconductor iW1699B Off-Line Digital Green-Mode Quasi-Resonant PWM Controller 4 Pinout Description iW1699B 1 VSENSE VCC 8 2 SD GND 7 3 CFG OUTPUT 6 4 ASU ISENSE 5 Figure 4.1 : 8 Lead SOIC-8 Package Pin Number Pin Name Type 1 VSENSE Analog Input Auxiliary voltage sense. Used for primary side regulation. 2 SD Analog Input External shutdown control. Can be configured for external over-temperature protection (OTP) by connecting an NTC resistor from this pin to Ground. 3 CFG Analog Input Used for external cable drop compensation (CDC) configuration and supplemental over-voltage protection (OVP). 4 ASU Output 5 ISENSE Analog Input 6 OUTPUT Output Gate drive for external MOSFET switch. 7 GND Ground Ground. 8 VCC Power Input Product Summary www.dialog-semiconductor.com Pin Description Control signal. Used for active start-up device (BJT or depletion mode NFET). Primary current sense. Used for cycle-by-cycle peak current control and limit. IC power supply. Rev. 1.7 3 of 6 06-Dec-2017 © 2017 Dialog Semiconductor iW1699B Off-Line Digital Green-Mode Quasi-Resonant PWM Controller 5 Absolute Maximum Ratings Absolute maximum ratings are the parameter values or ranges which can cause permanent damage if exceeded. For maximum safe operating conditions, refer to Electrical Characteristics in Section 6. Parameter Symbol Value Units DC supply voltage range (pin 8, ICC = 20mA max) VCC -0.3 to 25.0 V Continuous DC supply current at VCC pin (VCC = 15V) ICC 20 mA ASU output (pin 4) -0.3 to 19.0 V OUTPUT (pin 6) -0.3 to 20.0 V VSENSE input (pin 1, IVsense ≤ 10mA) -0.7 to 4.0 V ISENSE input (pin 5) -0.3 to 4.0 V SD (pin 2) -0.3 to 4.0 V CFG (pin 3, ICFG ≤ 20mA) -0.8 to 4.0 V 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 ESD rating per JEDEC JESD22-A114 Latch-up test per JESD78A Product Summary www.dialog-semiconductor.com Rev. 1.7 4 of 6 06-Dec-2017 © 2017 Dialog Semiconductor iW1699B Off-Line Digital Green-Mode Quasi-Resonant PWM Controller 6 Physical Dimensions 8-Lead Small Outline (SOIC) Package E 8 5 1 4 H e h x 45° A1 A2 COPLANARITY 0.10 (0.004) B MIN MAX MIN A 0.061 0.068 1.55 1.73 A1 0.0040 0.0098 0.127 0.250 A2 0.055 0.061 1.40 1.55 B 0.0138 0.0192 0.35 0.49 C 0.0075 0.0098 0.19 0.25 D 0.189 0.196 4.80 4.96 E 0.150 0.157 3.81 3.99 e A SEATING PLANE Inches Symbol D L α Millimeters 0.050 BSC MAX 1.27 BSC H 0.230 0.244 5.84 6.20 h 0.10 0.016 0.25 0.41 L 0.016 0.040 0.4 1.0 α 0° 8° C 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 < 270˚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. D and E1 dimensions are determined at datum H. The package top may be smaller than the package bottom. Dimensions D and E1 are determined at the outermost extremes of the plastic bocy 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 iW1699B-02 No OVP/OTP latch, 0.75V shutdown voltage, no smart hiccup SOIC-8 Tape & Reel1 iW1699B-03 OVP/external OTP latch, 0.75V shutdown voltage, no smart hiccup SOIC-8 Tape & Reel1 iW1699B-05 No OVP/OTP latch, 3V CC shutdown voltage, no smart hiccup SOIC-8 Tape & Reel1 iW1699B-06 No OVP/OTP latch, 3V CC shutdown voltage, smart hiccup with 3/8 duty cycle SOIC-8 Tape & Reel1 iW1699B-15 No OVP/OTP latch, 3V CC shutdown voltage, no smart hiccup, no internal OTP SOIC-8 Tape & Reel1 Note 1: Tape & Reel packing quantity is 2,500/reel. Minimum ordering quantity is 2,500. Product Summary www.dialog-semiconductor.com Rev. 1.7 5 of 6 06-Dec-2017 © 2017 Dialog Semiconductor iW1699B Off-Line Digital Green-Mode Quasi-Resonant PWM Controller 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. 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