See datasheet for actual packaging/pinout drawings

Packaging

Package | PIN:

D | 8

Temp:

Q (-40 to 125)

ECO Plan:

Green (RoHS & no Sb/Br)

SN65HVDA100QDRQ1


LIN Physical Interface

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Texas Instruments SN65HVDA100QDRQ1

The SN65HVDA100 device is the Local Interconnect Network (LIN) physical interface, which integrates the serial transceiver with wakeup and protection features. The LIN bus is a single-wire bidirectional bus typically used for low-speed in-vehicle networks using data rates from 2.4 kbps to 20 kbps. The LIN protocol output data stream on TXD is converted by the SN65HVDA100 into the LIN bus signal through a current-limited wave-shaping driver as outlined by the LIN Physical Layer Specification. The receiver converts the data stream from the LIN bus and outputs the data stream through RXD. The LIN bus has two states: dominant state (voltage near ground) and recessive state (voltage near battery). In the recessive state, the LIN bus is pulled high by the internal pullup resistor (30 kΩ) and series diode, so no external pullup components are required for slave applications. Master applications require an external pullup resistor (1 kΩ) plus a series diode per the LIN specification.

In sleep mode, low quiescent current is needed even though the wake-up circuits remain active and allow for remote wake up through the LIN bus or local wake up through the NWake or EN pins.

The SN65HVDA100 has been designed for operation in the harsh automotive environment. The device also prevents back-feed current through LIN to the supply input in case of a ground shift or supply voltage disconnection. The device also features undervoltage, overtemperature, and loss-of-ground protection. In the event of a fault condition, the transmitter is immediately switched off and remains off until the fault condition is removed.

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