STW4810 datasheet(34/72 Pages) STMICROELECTRONICS

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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