CY2570
USB PD Sink Controller With I2C Interface
Description
The CY2570, a highly integrated USB Type-C PD3.0/PPS sink controller, is targeted for DC power request and control through Configuration Channel (CC) communication for a Type-C Connector equipped Devices (TCD). To leveraging increasing popularity of standard Type-C PD3.0 power Chargers or adaptors (PDC), the CY2570 negotiates with a PD3.0 compliance adaptor to acquire the required power profile to power the TCD.
For more flexible PD3.0 and PPS power applications where direct voltage and current request with fine tuning capability (20mV/step, 50mA/step) are required, the CY2570 supports I2C communication – I2C Interface pins (SCL, SDA), Interrupt (GPIO3), I2C registers and command setting, for the host CPU of the TCD to communicate with.
There are rich power functions embedded in the chip with built-in firmware so as to reduce total BOM while maintain maximum flexibility. Over-Voltage Protection (OVP), Over-Current Protection (OCP), and Over-Temperature Protection (OTP) and Thermal Power De-rating options are provided. A one-time–programming ROM is provided to store PD sink controller firmware, and multi-time-programming ROM will be provided for user configuration purpose.
For more flexible PD3.0 and PPS power applications where direct voltage and current request with fine tuning capability (20mV/step, 50mA/step) are required, the CY2570 supports I2C communication – I2C Interface pins (SCL, SDA), Interrupt (GPIO3), I2C registers and command setting, for the host CPU of the TCD to communicate with.
There are rich power functions embedded in the chip with built-in firmware so as to reduce total BOM while maintain maximum flexibility. Over-Voltage Protection (OVP), Over-Current Protection (OCP), and Over-Temperature Protection (OTP) and Thermal Power De-rating options are provided. A one-time–programming ROM is provided to store PD sink controller firmware, and multi-time-programming ROM will be provided for user configuration purpose.
Features
- USB-IF certificated TID: 6071
- Compliant with USB PD Rev 3.0 v1.2 with PPS (20mV/step and 50mA/step)
- PD Sink controller with I2C bus communication
- Support Interrupt and its Mask to a Host MCU
- Support Status Register for system monitor and control
- LED lighting Indication for Charging and Fault status
- OTP and Thermal Power De-rating function
- OVP with auto restart
- OCP with auto restart
- Gate Driver for N-MOS VBUS Power Switch
- One-Time-Programming ROM for main firmware
- Support Dead-battery mode
- Operating Voltage Range: 3.3V to 24V
- Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
- Halogen and Antimony Free. “Green” Device (Note 3)
Pin Assignments
W-QFN4040-24 (Type A1)Applications
- Type-C Connector Equipped Battery-Powered Devices
- Type-C Connector Equipped DC-Power Input Devices
- USB Type C PD3.0 PPS Testers
- Type-C-to-Traditional Barrel Connector Power Adaptor Cables
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. Contact http://www.canyon-semi.com.tw for more information 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) compliant.
2. Contact http://www.canyon-semi.com.tw for more information 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 CY2570 is a USB Type-C power delivery sink controller and used to request power from a standard PDC, as shown in the figure 1 below.
Figure 1. Typical Application structure of CY2570The CY2570 requests a power profile through I2C communication controlled by the host CPU of the TCD device. A typical CY2570 application circuit which uses I2C bus is shown as below.
Figure 2. Typical Application Circuit of CY2570Functional Block Diagram
Figure 3. Functional Block Diagram of CY2570