iW1830-00 Dialog Semiconductor

iW1830 Off-Line Digital Green-Mode Quasi-Resonant PWM Controller Integrated with Power MOSFET 1 Description The iW1830 is a high performance AC/DC power supply control device that uses digital control technology to build peak current mode PWM flyback power supplies. The device includes an internal power MOSFET and operates in quasi-resonant mode and includes key built-in protection features. This combination of features and integration simplifies design, improves efficiency , reduces EMI and lowers the bill of material cost. The iW1830 removes the need for a 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. The 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. Dialogs innovative proprietary technology ensures that power supplies built with the iW1830 can achieve both the highest average efficiency and less than 50mW no-load power consumption in the 15W output power range, and have 2 Features PrimAccurate primary-side feedback eliminates Adaptively controlled soft-start enables fast and opto-isolators and simplifies design smooth start-up for a wide range of capacitive loads (from 330F to 6,000F) with output voltage of 12V Integrated 700V power MOSFET and above Tight constant-voltage regulation across line and load EZ-EMI design enhances manufacturability range Adaptive multi-mode PWM/PFM control improves Proprietary optimized 79kHz maximum PWM switching efficiency frequency with quasi-resonant operation achieves best size, efficiency and common mode noise Built-in single-point fault protections against output short-circuit, output over-voltage and output over- No-load power consumption < 50mW at 230V along AC current with fast dynamic load response and short turn-on delay in typical 15W adapter applications Built-in over-temperature protection (OTP) No audible noise over entire operating range 3 Applications Home appliances Power adapters for network devices and monitors Universal input AC/DC adapters (up to 15W) 23-August-2016 Product Summary Rev. 1.0 www.dialog-semiconductor.com 1 of 6 2016 Dialog SemiconductoriW1830 Off-Line Digital Green-Mode Quasi-Resonant PWM Controller Integrated with Power MOSFET L V OUT + + GND N U1 iW1830 1 8 D V CC 7 2 D V SENSE 3 GND 4 I S 5 SENSE Figure 3.1 : iW1830 Typical Application Circuit WARNING: The iW1830 is intended for high voltage AC/DC offline applications. Contact with live high voltage offline circuits or improper use of components may cause lethal or life threatening injuries or property damage. Only qualified professionals with safety training and proper precaution should operate with high voltage offline circuits. iW1830 Output Power Table at Universal Input (85V 264V ) AC AC 1 Condition Open Frame 2 15.0 Output Power (W) Notes: Note 1. Maximum practical continuous output power measured at open frame ambient temperture of 50C and device package/ pin temperatures of 100C while minimum bulk capacitor voltage is kept above 90V and no special heatsinking is used (test unit is placed in a non-ventilated environment). Note 1. The output power can vary depending on the power supply system designs and operating conditions. 23-August-2016 Product Summary Rev. 1.0 www.dialog-semiconductor.com 2 of 6 2016 Dialog Semiconductor