iW657P USB Power Delivery 3.0 Controller with Integrated Current Sense Supports Qualcomm Quick Charge 4+ 1 Description The iW657P is a USB Power Delivery (USB PD) interface controller which handles the communication between a Power Adapter and Mobile Device (MD). The controller enables the mobile device to alter the V voltage from the BUS default 5V and/or maximum current limitation (e.g. 3A) for higher power output or better efficiency. The iW657P supports USB PD 3.0, including Programmable Power Supply (PPS) support, while being backwards compatible with TM USB PD 2.0. The device also supports Qualcomm Quick Charge 4+ technology. The iW657P enables the use of TM advanced USB Type-C connector technology with CC1/CC2 pins for MD attach/detach detection and V support CONN for Electronically Marked Cable (EMC) rated current reading. The iW657P also integrates a high current charge-pump circuit to drive an external NFET V disconnect switch. BUS The iW657P resides on the secondary side of an AC/DC power supply and negotiates voltage and current settings with the primary-side controller, depending on the requests from the MD. The iW657P uses Dialogs proprietary secondary-to- primary digital communication technology and when paired with one of Dialogs primary-side RapidCharge controllers, such as the iW1791 or iW1799, the iW657P eliminates the need for a discrete decoder on the primary side by using one optocoupler to transmit all necessary information for rapid charging to the primary side. This includes output voltage requests, output current limits, output voltage undershoot, output over-voltage, and fault and reset signals. The iW657P incorporates Dialogs proven and reliable DLNK technology to communicate from the secondary to the primary and also has a built-in optocoupler LED driver to minimize the bill of material cost. The power supply designed with the iW657P is fully protected. Using over-voltage protection on the D+/D-/CC1/CC2 pins, the iW657P helps to address soft short issues in cables and connectors caused by poor or loose connections between the cable connector and the socket, contamination in the USB connector, or a worn out cable. Additionally, proprietary short circuit protection on the V NFET ensures safe operation in the event of a short on the output, while BUS the SD pin can be used with an external NTC resistor for protection from over-temeperature faults. The iW657P also integrates a secondary-side current sensing circuit that provides additional over-current protection for the power adapter. 2 Features USB-IF PD certified: USB PD 3.0 + Programmable Proprietary V NFET protection to protect V BUS BUS Power Supply (PPS) switch from damage due to an output short circuit x Maximum power limit in PPS to minimize power Proprietary secondary-to-primary digital adapter size communication eliminates discrete decoders on the primary side and simplifies system designs x Integrated CC transmitter/receiver supports BMC communication D+/D-/CC1/CC2 over-voltage protection (OVP) address soft short issues in the output cables and connectors x Backwards-compatible with USB PD 2.0 Optional secondary-side current sensing circuit Supports Qualcomm Quick Charge 4+ Technology provides additional protection for over-load fault Supports up to 7 Power Data Objects (PDOs) Uses external NTC for power adapter temperature sensing Supports wide output voltage range from 3.3 to 21V Programmable active fast discharge from a high Compatible with USB Type-C specification Rev 1.2 voltage V level to 5V at MD unplug or upon BUS for MD attach/detach detection and V support for request with built-in switch or external switch CONN smart cables Intelligent circuits helps achieve < 20mW system no- Integrated charge pump supports single NFET V switch load power at 5V steady-state operation. BUS 9-bit ADC provides accurate current (optional) and 14-pin 4x3mm TDFN package voltage sensing 3 Applications Rapid-charging AC/DC adapters for smart phones, tablets and other portable devices Qualcomm Quick Charge is a product of Qualcomm Technologies, Inc. 30-Mar-2020 Product Summary Rev. 1.0 www.dialog-semiconductor.com 1 of 7 2020 Dialog SemiconductoriW657P USB Power Delivery 3.0 Controller with Integrated Current Sense Supports Qualcomm Quick Charge 4+ L V BUS + + + + N GND - U3 iW676 1 DRAIN 6 V IN 2 5 SOURCE V CC + 3 OUT GND 4 U1 iW1791 1 GND V 8 CC 2 DLNK GATE 7 3 SOURCE 6 V SENSE 4 CFG I 5 SENSE U2 iW657P 1 D+ 14 D+ DIS 2 DRV GND 13 3 D- 12 D- V CC 4 SD 11 DET 5 V IS+ 10 BUS 6 IS- 9 V BUS G CC1 7 CC2 8 CC1 CC2 USB Type-C Socket Figure 3.1 : iW657P Typical Application Circuit with Secondary-Side Current Sensing (with iW1791 as the Primary-Side Controller and the iW676 as the Synchronous Rectifier Controller) L V BUS + + + + N GND - U3 iW676 1 DRAIN 6 V IN 2 SOURCE V 5 CC + 3 4 OUT GND U1 iW1791 1 GND V 8 CC 2 DLNK GATE 7 3 6 V SOURCE SENSE 4 CFG I 5 SENSE U2 iW657P 1 D+ 14 DIS D+ 2 DRV GND 13 3 12 V D- D- CC 4 SD 11 DET 5 V IS+ 10 BUS 6 IS- 9 V BUS G 7 CC2 CC1 8 CC1 CC2 USB Type-C Socket Figure 3.2 : iW657P Typical Application Circuit without Secondary-Side Current Sensing (with iW1791 as the Primary-Side Controller and the iW676 as the Synchronous Rectifier Controller) 30-Mar-2020 Product Summary Rev. 1.0 www.dialog-semiconductor.com 2 of 7 2020 Dialog Semiconductor