STR-USBC-4PORT-200W-EVK

Universal Offline 200W 4-Port Type-C USB-PD Source User Guide © Semiconductor Component Industries, LLC, 2019 March, 2019 – Rev. 0 1 200W 4-Port USB-PD Type-C Source Table of Contents WARNINGS .................................................................................................................................................. 3 INSTALLATION .......................................................................................................................................... 3 STARTUP PROCEDURE ............................................................................................................................. 3 BASIC VIEW ................................................................................................................................................ 4 ADVANCED VIEW ..................................................................................................................................... 5 Default View ............................................................................................................................................. 5 System Settings ......................................................................................................................................... 6 Port Settings .............................................................................................................................................. 6 SYSTEM SETTINGS .................................................................................................................................... 7 Power Management .................................................................................................................................. 7 Max System Power ................................................................................................................................................................ 7 First Come First Served Algorithm........................................................................................................................................ 7 Sleep State ............................................................................................................................................................................. 7 Assured Power ....................................................................................................................................................................... 7 Faults ......................................................................................................................................................... 8 Fault Protection ...................................................................................................................................................................... 8 Thermal Fault Protection ....................................................................................................................................................... 8 Thermal Foldback Protection................................................................................................................................................. 8 Input Voltage Fault ................................................................................................................................................................ 8 INDIVIDUAL PORT CONTROLS .............................................................................................................. 9 Assured Port Power (Port 1 only) ............................................................................................................. 9 Max Port Power ........................................................................................................................................ 9 Current limit .............................................................................................................................................. 9 Cable compensation .................................................................................................................................. 9 Advertised Profiles.................................................................................................................................... 9 http://onsemi.com 2 200W 4-Port USB-PD Type-C Source Warnings • • High voltage exists on the AC/DC supply. Exercise extreme caution when evaluating this system. The connectors between these two boards is not compatible with any other system. Connecting these boards to any other system risks damage to both device. Installation Go to www.onsemi.com/strata to download the most recent version of Strata and follow the installation prompts. Startup Procedure 1. 2. 3. 4. Apply AC voltage to the input of the board Connect your computer to the board using a USB Mini-B cable. Login with your credentials or click “Login” with empty fields to login as guest Your board will be detected and relevant content will be downloaded to your computer. http://onsemi.com 3 200W 4-Port USB-PD Type-C Source Basic View The basic view is comprised of two main sections… 1. 2. Input a. Bottom left is the voltage output and max power capability from the AC supply b. Top left is the input voltage and instantaneous power to the USB type-C ports Output a. Telemetry from ports 1 through 4 i. Profile – PD Contract voltage ii. Voltage Out - Measured voltage at type-C connector iii. PD Contract – Negotiated power contract iv. Temperature – Measured temperature next to high side MOSFET v. Power In – Measured port input voltage multiplied by measured port input current vi. Power Out – Measured output voltage multiplied by measured output current vii. Efficiency – Power out / Power in * 100 b. Graphs are available by clicking the button beneath the Port # title http://onsemi.com 4 200W 4-Port USB-PD Type-C Source Advanced View The advanced view is broken up into 3 main sections: 1. 2. 3. Telemetry a. Port Telemetry – Described in “Basic View” i. Additional power bar at top showing PD Contract of each port and instantaneous power consumed 1. E.g. 100W PD Contract with approximately 30W consumed as seen below b. Fault Display – prints out fault information System Settings – Controls regarding system behavior a. Power Management b. Fault Port Settings – Controls relevant to an individual port Default View http://onsemi.com 5 200W 4-Port USB-PD Type-C Source System Settings Port Settings http://onsemi.com 6 200W 4-Port USB-PD Type-C Source System Settings Power Management Max System Power This slider allows for artificially limiting the total power of the device anywhere from 30W to 200W. First Come First Served Algorithm The First Come First Served power management algorithm is an intelligent power management scheme ensuring that the total PD contracts requested from the type-C ports do not exceed the total power that the AC supply is able to source. Using this algorithm, 7.5W is reserved for each remaining open type-C port with the rest available for power contracts up to 100W. Sleep State This front end 200W AC/DC supply has a sleep state feature that must be tested outside the strata software. 1. 2. 3. 4. 5. 6. 7. Disconnect the AC board physically from the downstream DC/DC board Populate the 100 mil header next to SW1 with an option plug Make sure the switch is set to “Normal” Apply AC power to the input of the board through a power monitor Monitor the output voltage using the 24V pad or a test point (do not pull load) Move the switch to “Sleep” and you will see the output waveform as indicated in the test report a. Vout will rise to 24V then slowly drop to 5V, then repeat Integrating power use over a minute or two will show the ultra-low power consumption. Assured Power Multi-port type-C sources can have both assured and shared ports where assured ports will always have an allocated amount of power and shared ports will share a total maximum power between all of them. This system provides the option to include port 1 as a shared port (default operation) or assure port 1 to retain a certain amount of the total power reserve at all times. These controls are both in the power management portion of system settings as well as the port 1 settings. Please see “Individual Port Controls” for more info. http://onsemi.com 7 200W 4-Port USB-PD Type-C Source Faults Fault Protection Retry will cause the board to start back up once the fault is removed. None will disable the fault and no action will occur when the temperature threshold is met. This button affects Thermal Fault and individual port Current Limit. Thermal Fault Protection Choose the temperature at which the over-temperature fault is initiated. The Retry or None buttons will determine how the board will respond to an over-temperature condition. Note: The UI fault protection is a software control that is based on the readings from each port’s temperature sensors. Individual parts may have their own over temperature protection. Hysteresis exists on this setting of 2°C. Thermal Foldback Protection Thermal Foldback Protection is used to force a port to renegotiate the PD contract the % power of that port’s total available power when the temperature threshold is met. Hysteresis exists on this setting of 2°C. Temperature foldback reduces power by observing the max current for a port (3A or 5A) and selecting voltages starting from the lowest available (5V) and working up through the available voltages until a the chosen % power of that port’s contract is exceeded. Once that happens, the last value that did not exceed the % power is chosen. Since the lowest value is 5V @ 3A (15W) or 5V @ 5A (25W), it is possible the new contract will exceed the % power. Input Voltage Fault No controls are available to the user for this fault. If AC power is removed from the board (or 24V is no longer present on the main DC rail) the board will shut down until at least 22V is seen at the input of the DC board. Hysteresis exists on this setting of 0.5V that is unobservable to the user. http://onsemi.com 8 200W 4-Port USB-PD Type-C Source Individual Port Controls Assured Port Power (Port 1 only) This control allows you to switch port one between “Assured” and “Shared” power operation. Note that when the Assure Port 1 Power toggle is enabled and a device is plugged in, you will not be able to change the “Max Port Power” drop down. Max Port Power The port power of each port can be artificially limited by selecting an option in the drop down box. Once this is set, no contract will be offered on that port that exceeds the chosen max port power limit. Current limit The port current limit can be set in Strata to trigger from 0A to 6A. When triggered, the buck controller will be disabled and will hiccup in an attempt to restart until the current limit is increased or the requested current by the sink device decreases to an acceptable value. In addition to the software current limit, there is a fast hardware 6A current limit that exists due to the FPF2895 load switch. Cable compensation The cable compensation feature is intended to reduce voltage droop at the sink device when sourcing higher currents. Cable compensation is set on default to increase the output voltage by 100mV per increment of 1A. Warning: It is possible to exceed the voltage of downstream devices by reducing the current slider and increasing the voltage slider. Care must be taken by the user to ensure the voltage does not violate the specifications of the downstream device. Advertised Profiles At the bottom of each port’s controls there are a number of boxes showing voltage and current. These default to 7.5W until a device is plugged in. Once a device is plugged in, a list of profiles that were offered to the sink device will be displayed. The maximum of these profiles will be the power contract the sink device accepted from our source. Non-PD devices will accept 7.5W contracts after waiting for the PD negotiations to time out. Visual Controls Show Graphs Click on relevant button (e.g. Vout, Pin, etc) and graph will appear below port settings. Open in new window Control in top right to pop out control for customizable view. http://onsemi.com 9 200W 4-Port USB-PD Type-C Source ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent coverage may be accessed at https://www.onsemi.com/site/pdf/Patent-Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein. 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American Technical Support: 800−282−9855 Toll Free USA/Canada ON Semiconductor Website: https://www.onsemi.com/ Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Order Literature: https://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative http://onsemi.com 12