THVD8010 RS-485 Transceiver with OOK Modulation for Power Line Communication

1 Features

• 3-V – 5.5-V supply voltage

• Half-duplex communication

– Up to 30 Kbps data rate (OOK)

• RS-485 electrical signaling with on-off keying

(OOK) modulation

• Polarity Free

• Good noise immunity

• Pin selectable carrier frequency: 125 kHz – 300

KHz

• Spread spectrum clocking for excellent EMI

performance

• TX timeout to avoid stuck bus conditions

• Operational common-mode range: –7 V to 12 V

• Bus I/O protection

– ± 18-V DC fault protection

– ± 16 kV HBM ESD

– ± 8 kV IEC 61000-4-2 contact discharge

– ± 15 kV IEC 61000-4-2 air gap discharge

– ± 4 kV IEC 61000-4-4 fast transient burst

• Extended temperature range: -40°C to 125°C

• 8-Pin SOT-23 package for space constrained

applications

2 Applications

• HVAC systems

• Building automation

• Factory automation & control

• Appliances

• Lighting

• Grid infrastructure

3 Description

THVD8010 is an RS-485 transceiver with on-off

keying (OOK) modulation and demodulation built in

for power line communication. Modulating data onto

existing power lines allows power delivery and data

communication to share a common pair of wires,

resulting in a significant reduction of the system cost.

A pin programmable interface simplifies the system

design. The carrier frequency can be adjusted by

changing an external resistor on the F_SET pin. A

broad range of carrier frequencies gives the system

designer the flexibility to choose the external inductors

and capacitors. In addition, OOK modulation operates

with immunity to data polarity for ease of system

installations.

Device Information

PART NUMBER

PACKAGE(1)

BODY SIZE (NOM)

THVD8010

SOT-23 (8)

2.90 mm × 1.60 mm

(1)

For all available packages, see the orderable addendum at

the end of the data sheet.

Spacer

AC/DC

supply

THVD8010

L1

L2

L3

L4

C3

C4

C1

C2

D

R

MODE

Vcc

GND

THVD8010

D

R

MODE MCU

Vcc

GND

MCU

Load

Simplified Schematic

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THVD8010

SLLSFK4 – NOVEMBER 2020

Copyright © 2020 Texas Instruments Incorporated

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THVD8010

SLLSFK4 – NOVEMBER 2020

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.