CY53781(H)
USB PD3.1 DRP Controller
Description
The CY53781/CY53781H (CY53781(H)) is a highly integrated USB Type-C® PD3.1 Dual-Role Power (DRP) controller to support Extended Power Range (EPR) / Adjustable Voltage Supply (AVS) up to 36V and Standard Power Range (SPR) / Programmable Power Supply (PPS) up to 21V.
The CY53781(H) can play as a power consumer by requesting power from a PD3.1 compliant adaptor, and play as a power provider to supply devices equipped with Type-C connector. The CY53781(H) could consume as low as 50uA during the power down mode.
The CY53781(H) is operating in a system without MCU. To be a power consumer, its desired Request Data Object (RDO) can be selected by the corresponding resistance values for voltage and current on the VSEL and ISEL pins respectively. To be a power provider, its Power Data Object (PDO) capability can be selected from a pre-determined power profiles by a suitable resistance on the PDOSEL pin. The CY53781 and CY53781H have different selection tables of RDO and PDO, where CY53781 supports SPR/PPS range only, while CY53781H can cover EPR/AVS range up to 36V.
Meanwhile, the CY53781(H) integrates Rp/Rd termination resistors for DRP with QC2.0/3.0 functions and dead battery supported during the sink role, and VFB feedback for DC/DC controller during the source role. In addition, the CY53781(H) operates from 3.3V up to 36V with low side current sense topology.
Based on high-voltage process, the CY53781(H) offers VBUS short protection for CC1/CC2 pins up to 34V. The smart built-in firmware of the CY53781(H) offers comprehensive safety protection schemes, including over-voltage protection (OVP), under-voltage protection (UVP), over-current protection (OCP), and moisture detection between DP and DN.
The CY53781(H) can play as a power consumer by requesting power from a PD3.1 compliant adaptor, and play as a power provider to supply devices equipped with Type-C connector. The CY53781(H) could consume as low as 50uA during the power down mode.
The CY53781(H) is operating in a system without MCU. To be a power consumer, its desired Request Data Object (RDO) can be selected by the corresponding resistance values for voltage and current on the VSEL and ISEL pins respectively. To be a power provider, its Power Data Object (PDO) capability can be selected from a pre-determined power profiles by a suitable resistance on the PDOSEL pin. The CY53781 and CY53781H have different selection tables of RDO and PDO, where CY53781 supports SPR/PPS range only, while CY53781H can cover EPR/AVS range up to 36V.
Meanwhile, the CY53781(H) integrates Rp/Rd termination resistors for DRP with QC2.0/3.0 functions and dead battery supported during the sink role, and VFB feedback for DC/DC controller during the source role. In addition, the CY53781(H) operates from 3.3V up to 36V with low side current sense topology.
Based on high-voltage process, the CY53781(H) offers VBUS short protection for CC1/CC2 pins up to 34V. The smart built-in firmware of the CY53781(H) offers comprehensive safety protection schemes, including over-voltage protection (OVP), under-voltage protection (UVP), over-current protection (OCP), and moisture detection between DP and DN.
Features
- Compliant with USB PD Rev 3.1 V1.4 EPR mode
- USB PD3.1 DRP controller
- Support EPR / AVS up to 36V with 100mV/step (CY53781H only)
- Support SPR / PPS up to 21V with 20mV/step and 50mA/step
- Support power down consumption as low as 50uA
- Source PDO capability selected through resistor setting
- Sink RDO voltage/current selected through resistors settings
- Support QC2.0/3.0 sink controller
- Support gate driver for N-MOS VBUS power switch
- Support VFB CC/CV control for DC/DC controller/converter
- Operating voltage 3.3V to 36V with low side current sense
- Support VBUS and VOUT discharge paths
- Support dead-battery mode
Features (Continued)
- Support OVP/UVP/OCP with auto restart
- VBUS short protection on CC1/CC2 pins up to 36V
- Support moisture detection between DP and DN
- Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
- Halogen and Antimony Free. “Green” Device (Note 3)
Pin Assignments
W-QFN3030-16 (Type A1)Applications
- Power Banks/Power Tools
- Type-C Connector Equipped Devices
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.canyon-semi.com.tw for more information about definitions of Halogen- and Antimony-free, "Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds.
USB Type-C® and USB-C® are registered trademarks of USB Implementers Forum.
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.
2. See https://www.canyon-semi.com.tw for more information about definitions of Halogen- and Antimony-free, "Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds.
USB Type-C® and USB-C® are registered trademarks of USB Implementers Forum.
Typical Applications Circuit
The CY53781(H) plays as a DRP controller after the power-on initialization. The CY53781(H) alternates periodically the Type-C CC1/CC2 pin connections between the pull-down resistance, Rd, and pull-up resistance, Rp.
The CY53781(H) is operating in a system without MCU as shown in Figure 1 below. When it plays as a power sink role, its desired RDO can be selected by the corresponding resistance values on the VSEL and ISEL pins for voltage and current respectively. When it plays as a power source role, its PDO capability can be selected from a pre-determined 8 power profiles by a suitable resistance on the PDOSEL pin.
Meanwhile, the CY53781(H) supports QC2.0/3.0 functions and dead battery operation during the sink role, and support VFB control for DC/DC controller during the source role. In addition, the CY53781(H) operates from 3.3V up to 36V with 5mΩ low side current sense topology.
The CY53781(H) provides a gate driver for the external VBUS MOS switch control of a bi-direction DC/DC controller, or an extra GPIO pin is used for the VBUS MOS switch control of the source provider path. The discharge paths for VOUT and VBUS are provided.
The CY53781(H) is operating in a system without MCU as shown in Figure 1 below. When it plays as a power sink role, its desired RDO can be selected by the corresponding resistance values on the VSEL and ISEL pins for voltage and current respectively. When it plays as a power source role, its PDO capability can be selected from a pre-determined 8 power profiles by a suitable resistance on the PDOSEL pin.
Meanwhile, the CY53781(H) supports QC2.0/3.0 functions and dead battery operation during the sink role, and support VFB control for DC/DC controller during the source role. In addition, the CY53781(H) operates from 3.3V up to 36V with 5mΩ low side current sense topology.
The CY53781(H) provides a gate driver for the external VBUS MOS switch control of a bi-direction DC/DC controller, or an extra GPIO pin is used for the VBUS MOS switch control of the source provider path. The discharge paths for VOUT and VBUS are provided.
Figure 1 – The CY53781(H) is a DRP controller without the need of an external host MCUFunctional Block Diagram
The CY53781(H) block diagram is shown in Figure 2 as below, where the embedded MCU is used for the mainframe operation of this DRP controller. Both source and sink roles support USB PD3.1 and QC protocols.
Figure 2 – The CY53781(H) Block Diagram is shown as above 