iW656P USB Power Delivery 3.0 Controller Supports Qualcomm Quick Charge 4+ 1 Description The iW656P 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 iW656P 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 iW656P 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 iW656P 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 iW656P 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 iW656P 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 iW656P 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 iW656P is fully protected. Using over-voltage protection on the D+/D-/CC1/CC2 pins, the iW656P 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. 2 Features Supports USB PD 3.0 and PPS Proprietary V NFET protection to protect V BUS BUS switch from damage due to an output short circuit x Maximum power limit in PPS to minimize power adapter size Proprietary secondary-to-primary digital communication eliminates discrete decoders on the x Integrated CC transmitter/receiver supports BMC primary side and simplifies system designs communication D+/D-/CC1/CC2 over-voltage protection (OVP) address x Backwards-compatible with USB PD 2.0 soft short issues in the output cables and connectors Supports Qualcomm Quick Charge 4+ Technology Uses external NTC for power adapter temperature sensing Supports up to 7 Power Data Objects (PDOs) Programmable active fast discharge from a high Supports wide output voltage range from 3.3 to 21V voltage V level to 5V at MD unplug or upon BUS request with built-in switch or external switch Compatible with USB Type-C specification Rev 1.2 for MD attach/detach detection and V support for Intelligent circuits helps achieve < 20mW system no- CONN smart cables load power at 5V steady-state operation. Integrated charge pump supports single NFET V 12-pin 3x3mm TDFN package BUS switch 9-bit ADC provides accurate 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. 21-Feb-2019 Product Summary Rev. 1.0 www.dialog-semiconductor.com 1 of 6 2019 Dialog SemiconductoriW656P USB Power Delivery 3.0 Controller Supports Qualcomm Quick Charge 4+ L V BUS + + + + N GND - U3 iW676 1 DRAIN V 6 IN 2 SOURCE V 5 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 iW656P 1 DIS D+ 12 D+ 2 DRV GND 11 3 V D- 10 D- CC 4 DET SD 9 5 V CC1 8 CC1 BUS 6 V CC2 7 CC2 BUS G USB Type-C Socket Figure 3.1 : iW656P Typical Application Circuit (with iW1791 as the Primary-Side Controller and the iW676 as the Synchronous Rectifier Controller) V BUS + + + GND - U3 iW676 U1 1 DRAIN V 6 IN iW1799 2 SOURCE V 5 1 V DET 8 CC + SENSE 3 4 OUT GND 2 DLNK CS/CDC 7 NTC 3 GATE 6 SD U2 4 V GND 5 CC iW656P 1 DIS D+ 12 D+ 2 DRV GND 11 3 V D- 10 CC D- 4 SD 9 DET 5 V CC1 8 CC1 BUS 6 V CC2 7 CC2 BUS G USB Type-C Socket Figure 3.2 : iW656P Typical Application Circuit (with iW1799 as the Primary-Side Controller and the iW676 as the Synchronous Rectifier Controller) 21-Feb-2019 Product Summary Rev. 1.0 www.dialog-semiconductor.com 2 of 6 2019 Dialog Semiconductor