Description:The iW1760 is a high-performance AC/DC controller designed to drive an external power N-channel MOSFET in PWM flyback power supplies. With output power capability ranging from 15W to 40W, the iW1760 is ideal for universal-input wall adapters in portable electronics and power supplies for consumer electronics.The iW1760 meets the US DoE’s external power supply standard and the EU’s Code of Conduct, Version 5, Tier 2 standard by offering no-load power consumption of <50mW while complying with active mode mini
Renesas provides a recommended PCB layout guide in their application note (R01AN2732EU0100) which includes thermal design considerations, such as thermal vias, heat sinks, and copper pours, to ensure optimal thermal performance.
Renesas recommends using an external overcurrent protection circuit, such as a current sense resistor and a comparator, to detect overcurrent conditions. The IW1760-01 also has a built-in overcurrent detection feature, but it's recommended to use an external circuit for more accurate detection and protection.
Renesas recommends using a low-ESR ceramic capacitor with a value of 10uF to 22uF for the input capacitor. The capacitor type should be X5R or X7R, and it should be placed as close as possible to the VIN pin of the IW1760-01.
Renesas provides EMC design guidelines in their application note (R01AN2732EU0100) which include recommendations for PCB layout, component selection, and shielding to ensure EMC compliance. Additionally, it's recommended to follow the CISPR 25 standard for automotive EMC testing.
The IW1760-01 has an operating temperature range of -40°C to 125°C, but it's recommended to derate the device's performance at high temperatures to ensure reliability and longevity.
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IW1760-01 Overview
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