CY2336
Dual-Channel USB Type-C PD3.1 Protocol Decoder
Description
The CY2336 is a highly integrated, dual-channel, USB Type-C®, PD3.1 SPR/PPS, BC 1.2, and QC protocol decoder. It passes certification of USB Type-C power delivery specification Rev 3.1 with PPS and Quick ChargeTM QC5 protocol.
The device can support the full range of PPS APDO (augmented power data object) from 3.3V to 21V with 20mV/step voltage resolution and up to 6A current with 50mA/step resolution for power management. To enable output current beyond 3A, the CY2336 supports e-Marker cable detection with built-in VCONN switch with 30mA driving capability and over-current protection (OCP). Cable-loss compensations are also embedded.
During the power charging, the CY2336 can support Display Port Alternate Mode by decoding out the CC signal and deliver the routing information to the mux switch through I2C interface. Meanwhile, the CY2336 also supports BC1.2 CDP handshaking.
The CY2336 provides an embedded MCU and built-in ADC converters for voltage and temperature measurement, where over-temperature protection (OTP) and other specific functions can be implemented through I2C pins and rich GPIO pins. Working in conjunction with two I2C-equipped Buck-Boost controllers or converters which have PD3.1 PPS output circuitry, the CY2336 serves as the I2C master and supports two independent PD3.1 PPS charging applications without using additional output enable MOS chips for each PD3.1 output port.
With built-in firmware, the CY2336 can support various smart power-management functions such as power-sharing scheme between two attached USB Type-C PD devices, low-battery power de-rating, thermal power de-rating, LED light indication, etc. Two CY2336 devices can also be interconnected through a UART (GPIO) pin to implement smart power-sharing scheme for all four connected USB Type-C ports attached to a fixed power source.
The device can support the full range of PPS APDO (augmented power data object) from 3.3V to 21V with 20mV/step voltage resolution and up to 6A current with 50mA/step resolution for power management. To enable output current beyond 3A, the CY2336 supports e-Marker cable detection with built-in VCONN switch with 30mA driving capability and over-current protection (OCP). Cable-loss compensations are also embedded.
During the power charging, the CY2336 can support Display Port Alternate Mode by decoding out the CC signal and deliver the routing information to the mux switch through I2C interface. Meanwhile, the CY2336 also supports BC1.2 CDP handshaking.
The CY2336 provides an embedded MCU and built-in ADC converters for voltage and temperature measurement, where over-temperature protection (OTP) and other specific functions can be implemented through I2C pins and rich GPIO pins. Working in conjunction with two I2C-equipped Buck-Boost controllers or converters which have PD3.1 PPS output circuitry, the CY2336 serves as the I2C master and supports two independent PD3.1 PPS charging applications without using additional output enable MOS chips for each PD3.1 output port.
With built-in firmware, the CY2336 can support various smart power-management functions such as power-sharing scheme between two attached USB Type-C PD devices, low-battery power de-rating, thermal power de-rating, LED light indication, etc. Two CY2336 devices can also be interconnected through a UART (GPIO) pin to implement smart power-sharing scheme for all four connected USB Type-C ports attached to a fixed power source.
Features
- Dual-channel independent USB Type-C PD3.1/PPS decoder
- USB-IF PD3.1 SPR/PPS certified TID: 9440
- Quick Charge™ QC5 certificated No.: QC20211008263
- Supports PD3.1/ full range of PPS VOUT (3.3V to 21V)
- Compliant with BC1.2 DCP mode for QC2.0/3.0/4/4+/5
- Support Type-C PD Display Port Alternative mode
- Support BC 1.2 CDP mode for Charging Downstream devices and allow data transfer
- Built-in ADC and multi-channel multiplexer for voltage and temperature measurement
- Supports e-Marker detection and VCONN 30mA capability
- Supports cable-loss compensations
- I2C Interface and Interrupt
- Multi-purpose I/Os to support different applications
- Supports CC1/CC2 to VBUS short protection up to 24V
- Supports moisture detection between DP and DN
- Supports thermal protection through external NTC
- Support output power de-rating for low battery
- Built-in MCU with 12KB OTP ROM for main application program with multi-time-programmable ROM (MTP ROM) blocks for customization
- W-QFN4040-20 (4x4, 0.5mm pitch) package
- Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
- Halogen and Antimony Free. “Green” Device (Note 3)
- For automotive applications requiring specific change control, please contact us or your local Canyon-semi representative.
Pin Assignments
W-QFN4040-20Applications
- In-vehicle multi-port USB PD3.1 charging systems
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. Please contact http://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.
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. Please contact http://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.
Typical Applications Circuit
Application 1:
Two USB Type-C ports car charger based on one* CY2336 + two* DC/DC, where I2C bus is used for communications between CY2336 and two DC/DC controllers. It is shown that the USB Type-C output MOS switch is not needed.
Two USB Type-C ports car charger based on one* CY2336 + two* DC/DC, where I2C bus is used for communications between CY2336 and two DC/DC controllers. It is shown that the USB Type-C output MOS switch is not needed.
Figure 1. A two-channel car chargerApplication 2:
A car charger with four USB Type-C ports based on two* CY2336 + four* DC/DC controllers is shown in Figure 2, where the smart power sharing is performed through I2C and UART buses.
A car charger with four USB Type-C ports based on two* CY2336 + four* DC/DC controllers is shown in Figure 2, where the smart power sharing is performed through I2C and UART buses.
Figure 2. A four-channel car chargerTypical Applications Circuit (continued)
An example of 120W Dual-port Type C PD3.1 SPR/PPS car charger is shown in Figure 3. Powered by the VREG pin (internal 5V Regulator output) for the attached DC-DC Controller, detecting Vin through GPIO1, the CY2336 could enter protection mode to disable DC/DC stage by controlling the GPIO2 pin. All PD decoded information through CC1 and CC2 pin as well as measured parameters of the operating conditions, the CY2336 conveys necessary actions, such as Constant Voltage output, Constant Current output and protection functions through I2C interface. With built-in application firmware of the CY2336, VBUS MOS switches are not needed, and GPIO pins are used to do battery detection, power sharing, temperature detection, LED indicator, and so on.
Figure 3. A 120W 2C PD3.1 SPR/PPS car charger design based on 2*DC/DC+1*CY2336Application 3: Alternate Mode and BC 1.2 CDP mode Support
The CY2336 not only supports power protocol decoding, but also provides the data link capability. Figure 4 illustrates the CY2336 application scenarios of power source and data link.
If one of the ports of CY2336 is connected to the Notebook host or smart phone device, then it plays as a Downstream Facing Port (DFP), and power is sourced out to the Notebook/device. Once the PD power is delivered, the monitor and the Notebook host or smart phone device will swap data role. To play as a DFP role, the Notebook host or smart phone device requests the Upstream Facing Port (UFP) monitor to support the DP Alternate mode. The CY2336 can decode out the Alternate mode information of CC commands from TCD device, and then send the information to the high speed multiplexer through I2C interface to switch the data path accordingly, so that the DP video signal can enter the car navigation system correctly.
For the other port, it can be used as a Type-A connector, and can support BC 1.2 CDP mode, where not only power is sourced out for the device, but also the data can be linked to the Car Navigator at the same time.
The CY2336 not only supports power protocol decoding, but also provides the data link capability. Figure 4 illustrates the CY2336 application scenarios of power source and data link.
If one of the ports of CY2336 is connected to the Notebook host or smart phone device, then it plays as a Downstream Facing Port (DFP), and power is sourced out to the Notebook/device. Once the PD power is delivered, the monitor and the Notebook host or smart phone device will swap data role. To play as a DFP role, the Notebook host or smart phone device requests the Upstream Facing Port (UFP) monitor to support the DP Alternate mode. The CY2336 can decode out the Alternate mode information of CC commands from TCD device, and then send the information to the high speed multiplexer through I2C interface to switch the data path accordingly, so that the DP video signal can enter the car navigation system correctly.
For the other port, it can be used as a Type-A connector, and can support BC 1.2 CDP mode, where not only power is sourced out for the device, but also the data can be linked to the Car Navigator at the same time.
Figure 4. The CY2336 supports DP Alternative mode and BC 1.2 CDP mode for data link during the power sourcingFunctional Block Diagram
The CY2336 is an MCU-based, dual-channel, USB Type-C, PD3.1/PPS and QC5 protocol decoder. The device’s functional block diagram is shown below. With its hardware transceivers and multiplexed ADC, the rich multipurpose GPIOs can support many different kinds of applications.
Figure 5. The functional block diagram of the CY2336