Renesas Electronics Corporation

The iW1702 is a digital offline controller for AC/DC power supplies up to 45W optimized for 9V or greater output voltages. The part uses Renesas' PrimAccurate™ primary-side control technology, eliminating the need for an optical isolation device on the secondary, reducing component count and cost. For highest power density power supplies, the iW1702 can be paired with theiW676digital synchronous rectifier controller, which drives a power MOSFET on the secondary side of the power supply to replace the main rectifying diode. The iW1702 integrates a unique light load operation mode that allows the user to configure the minimum switching frequency at light load through an external resistor. The higher the light load mode switching frequency, the better the dynamic load response (DLR). If the lowest switching frequency is chosen, the no-load power consumption is reduced, negatively impacting the DLR performance. In this case, the iW676 offers integrated active voltage position (AVP) control options that can be used for faster DLR while keeping the no-load power consumption <75mW. A full array of protection features are integrated, includingSmartDefender™advanced hiccup technology to protect against soft shorts in cables and connectors. ADiaSIM™simulation model is available for the iW1702. For more information and where to download, please visit theDiaSIM™page.

The iW1760B improves on the performance of Renesas' iW1760 AC/DC controller by reducing the output voltage ripple to 1% on a 12V output voltage, increasing the Vcc input voltage range up to 25V and increasing robustness with extra protection features. The iW1760B 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 minimum efficiency requirements. The iW1760B also incorporates Renesas'SmartDefender™smart hiccup technology to help address soft short circuits in cables and connectors. The iW1760B is pin-to-pin and backward compatible with theiW1760. ADiaSIM™simulation model is available for the iW1760B. For more information and where to download, please visit theDiaSIM™page.

The iW1782 is a high-performance AC/DC power supply controller for rapid charge that uses digital control technology to build peak current mode PWM flyback power supplies. The iW1782 is optimized to work with Renesas'iW636secondary-side controller for Qualcomm®Quick Charge™ 3.0 technology to achieve fast and smooth voltage transition upon request by mobile devices (MD). When paired with the iW636, the iW1782 eliminates the discrete decoders on the primary side, minimizes the external component count and simplifies system designs. The iW636 can communicate with the iW1782 through one optocoupler for all the necessary rapid charge information including output voltage requests, output current limits, output voltage undershoot, and output overvoltage. The iW1782 also incorporates Renesas'SmartDefender™smart hiccup technology to address soft short circuits in charger cables and connectors helping to prevent excessive heat build-up and damage. Qualcomm®Quick Charge™ is a product of Qualcomm Technologies, Inc.

The iW1790 is a 27W output, high-performance AC/DCRapidCharge™power supply controller that integrates Renesas'XM-Commtechnology, removing all optocouplers from travel adapters to reduce cost and improve reliability. The device also uses advanced source charging technology to integrate additional high voltage components, further reducing the overall BOM cost in travel adapter applications. The device supports Qualcomm Quick Charge 3.0 and 2.0 along with other rapid charging protocols. It is optimized to work with theiW662secondary-side device, which integrates a RapidCharge interface IC and a synchronous rectifier controller. The iW662 uses Renesas'XM-Commtechnology to transmit all necessary information to the iW1790, including voltage requests, output current limits, output voltage undershoot, output overvoltage, and fault and reset signals. A full array of protection features includes Renesas'SmartDefender™advanced hiccup technology to address soft short circuits in charger cables and connectors, helping to prevent excessive heat build-up and damage. Qualcomm®Quick Charge™ is a product of Qualcomm Technologies, Inc.

The iW1791 is a 27W output, high-performance AC/DCRapidCharge™power supply controller that supports USB Power Delivery (USB PD) 3.0 and other rapid charging protocols. The device uses advanced source charging technology to integrate additional high-voltage components and reduce the overall BOM cost in travel adapter applications. It is optimized to work with Renesas'iW657PUSB PD interface controller in mobile device adapters to achieve fast and smooth voltage transition on request from the mobile device. The iW657P accepts fast charging protocols, including USB PD 3.0. It transmits all necessary information via an optocoupler to the iW1791, including voltage requests, output current limits, output voltage undershoot, output overvoltage, and fault and reset signals. A full array of protection features includes Renesas'SmartDefender+™advanced hiccup technology to address soft short circuits in charger cables and connectors, helping to prevent excessive heat build-up and damage. See theiW1781for 45W USB PD 3.0 designs. Qualcomm®Quick Charge™ is a product of Qualcomm Technologies, Inc.

The iW1796 is a 27W output, high-performance AC/DC RapidCharge™ power supply controller that integrates Renesas' XM-Comm technology, eliminating all optocouplers from travel adapters to reduce cost and improve reliability. The device comes in an SOT23-6 package, reducing the total solution size for space-sensitive travel adapter applications. The device can support Qualcomm® Quick Charge™ 3.0 and 2.0 and other rapid charging protocols. It is optimized to work with Renesas'iW662secondary-side synchronous rectifier controller and rapid charge interface IC. The iW662 IC uses XM-Comm technology to transmit all necessary information via an optocoupler to the iW1796, including voltage requests, output current limits, output voltage undershoot, output overvoltage, and fault and reset signals. A full array of protection features includes Renesas' advanced fault control technology to address soft short circuits in charger cables and connectors without latching off the output. Qualcomm® Quick Charge™ is a product of Qualcomm Technologies, Inc.