iW629 Product Summary TM AC/DC Secondary-Side Controller for Qualcomm Quick Charge 2.0 USB Interface with Soft-Short Protection 1.0 Features 2.0 Description TM Supports Qualcomm Quick Charge 2.0 (QC2.0) The iW629 is an AC/DC secondary-side controller compatible technology High Voltage Dedicated Charging Port with the Qualcomm Quick Charge 2.0 USB interface and (HVDCP) secondary-to-primary communication protocol, allowing rapid charging of QC2.0-enabled mobile devices. The iW629 resides Double-layer cable protection: on the secondary side of an AC/DC power supply and allows x Secondary side (iW629): Proprietary D+/D- over- the adapter to be configured for multi-level output such as 5V voltage protection (OVP) addresses V D+/D- soft and 9V, depending on the voltage requested by the mobile BUS shorts device. It can be used in Dialogs primary-side controlled AC/ DC systems to achieve fast voltage transition, low no-load x Primary side (iW1780): SmartDefender smart power consumption, and fast dynamic load response. hiccup technology reduces average output power at fault conditions without latch The iW629 implements Dialogs proprietary secondary-to- primary digital communication technique. When paired with Proprietary secondary-to-primary digital communication Dialogs primary-side iW1780 controller, the iW629 eliminates eliminates discrete decoders in the primary side and the discrete decoders in the primary side, simplifying system simplifies system designs designs. It uses one opto-coupler to transmit all necessary Single opto-coupler transmits all information for rapid information for rapid charging, including output voltage charge: output voltage requests, output current limits, requests, output current limits, output voltage undershoot, output voltage undershoot, over-voltage protection, output over-voltage, and fault and reset signals. It also has a and fault and reset signals built-in opto-coupler LED driver to minimize the bill of material cost. Backward compatible with USB Battery Charging Specification Revision 1.2 (USB BC1.2) Dedicated The iW629 and iW1780 provide double-layer cable protection. Charging Port (DCP) On the secondary side, the iW629 incorporates Dialogs Pin-to-pin compatible with iW626 proprietary D+/D- over-voltage protection to address V D+/ BUS D- soft shorts. On the primary side, the iW1780 uses Dialogs Programmable active fast discharge from 9V to 5V at SmartDefender advanced hiccup technology to reduce the mobile device (MD) unplug or upon request with built-in average output power during soft shorts without latch. switch or external switch Dialogs innovative, proprietary technology ensures that power Normally OFF state with <120 mA cut-off current during supplies designed with the iW629 and iW1780 can provide 5V steady-state operation to achieve <10mW power multi-level output voltage configuration, with user-selected consumption at no load various output current limit combinations. Furthermore, the Wide operating voltage range from 3V to 25V chipset can achieve <10mW no-load power consumption at 5V, 2A output setting and fast dynamic load response in Built-in opto-coupler LED driver with minimum driving typical AC/DC rapid charge adapter designs. current of 2mA TM 6-lead SOT-23 package Qualcomm Quick Charge 2.0 is a product of Qualcomm Technologies, Inc. 3.0 Applications Rapid-charging AC/DC adapters for smart phones, tablets, and other portable devices iW629 Rev. 0.5 Preliminary Product Summary 1 of 6 2015 Dialog Semiconductor (UK) Ltd.iW629 Product Summary TM AC/DC Secondary-Side Controller for Qualcomm Quick Charge 2.0 USB Interface with Soft-Short Protection L V OUT + + N RTN U1 3 2 1 iW1780 V DRV DIS CC U2 1 8 V V SENSE CC + iW629 2 SD GND 7 D- GND D+ 4 5 6 3 OUTPUT 6 NTC DLNK 4 CS/CDC 5 ASU R D+ CDC D- Figure 3.1: iW629 Typical Application Circuit for Multi-Level Output Voltage and Current (Using iW1780 as Primary-Side Controller. Achieving <10mW No-Load Power Consumption) L V OUT + + N RTN U3 iW671 U1 1 8 VPS V IN iW1780 7 2 DRV V 1 V V 8 CC + SENSE CC + 3 PLRIN 6 2 SD GND 7 GND 4 5 DRAIN OUT 3 DLNK OUTPUT 6 NTC 4 CS/CDC 5 ASU R CDC 3 2 1 V DRV DIS CC U2 iW629 D- GND D+ 4 5 6 D+ D- Figure 3.2: iW629 Typical Application Circuit for Multi-Level Output Voltage and Current (Using iW1780 as Primary-Side Controller and iW671 as Synchronous Rectifier Controller . Achieving < 20mW No-Load Power Consumption) iW629 Rev. 0.5 Preliminary Product Summary 2 of 6 2015 Dialog Semiconductor (UK) Ltd.