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BM92T20MWV Fiches technique(PDF) 4 Page - Rohm |
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BM92T20MWV Fiches technique(HTML) 4 Page - Rohm |
4 / 32 page BM92T20MWV 4/28 TSZ02201-0232AA000210 -1-2 16, Jul.2015, Rev.001 © 2015 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001 www.rohm.com 1 Introduction BM92T20 is a full function Type-C USB-PD controller that supports USB Power Delivery using base-band communication. It is compatible with USB Type-C specification rev1.1 and USB Power Delivery specification rev2.0 BM92T20 includes the following functional blocks: Type-C Physical Layer (base-band PHY), BMC encoder / decoder, USB-PD Protocol engine, two N-ch MOSFET switch drivers to control two MOSFETS each, OVP FET and SMBus interface for communicating with the host controller. It requires an external embedded controller that includes Device Policy Manager and GPIOs for Type-C USB-PD operation. BM92T20 is able to operate independently in an AC adapter or in a dead battery condition where the embedded controller is not operational. BM92T20 includes an EEPROM, enabling code updates via the SPI interface during prototyping phase. BM92T20 controller comes in four variations depending on Technical Note for their circuit design. Please refer for additional details Figure 1-1 shows the block diagram. Type-C Physical Layer Protocol BB PD Physical Layer SMbus NchFET Switch Driver Type-C USBPD SPI I/F EEPROM VDDIO GPIO1 GPIO0 DBGMODDT DBGRSTCK LDO15ACAP LDO28CAP LDO15DCAP GPIO5 (UPSDIN) GPIO6 (UPSDO) GPIO7 (UPSCLK) SMCLK SMDATA VCONN_IN CSENSEN CSENSEP XCLPOFF1 XCLPOFF2 CC2 CC1 Device Policy Manager Figure 1-1. Block Diagram |
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