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STW4810 датащи(PDF) 34 Page - STMicroelectronics |
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STW4810 датащи(HTML) 34 Page - STMicroelectronics |
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34 / 72 page ![]() 4 Functional description STw4810 34/72 Rev3 Figure 11. Thermal threshold temperatures for ‘it_warn’ bit and VDDOK ball 4.4 USB OTG module This transceiver complies with the USB specification: ● Universal Serial Bus Specification Rev 2.0 ● On the Go supplement to the USB specification Rev 1.0-a ● Car kit Interface Specification (see: OTG transceiver specification rev0.92) The USB OTG Transceiver has two modes: USB mode and UART mode. It includes: ● Full and low speed transceiver (12 Mbit/s and 1.5 Mbit/s data rate) ● Support data line and VBUS pulsing session request ● Contains Host Negotiation Protocol (HNP) command and status register ● Charge pump regulator (5 V at 100 mA) to supply VBUS line of the USB cable ● VBUS Pull-up and pull-down resistors as defined by Session Request Protocol (SRP) ● VBUS threshold comparators ● VUSB LDO internal regulator which provides power supply for the bus driver and receiver. ● ID line detector and interrupt generator ● Dedicated I²C serial control interface Thermal Shutdown Threshold 2 Rising threshold 149 155 164 °C Falling threshold 129 135 143 °C Table 29. Thermal threshold values Description Min Typ Max Unit ‘it_warn’ bit VDDOK ball Temperature Rising Warning Threshold 1 Rising Shutdown Threshold 2 All supplies are turn “OFF” |
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