TSS721A - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

TSS721A
Manufacturer

TI
ChipWorker Part#

CW578114241
RoHS

Lead free / RoHS Compliant
Description

Meter-Bus Transceiver 16-SOIC
Documentation

Datasheet

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TSS721A Specifications

Attribute	Attribute Value

Part Number	TSS721A
Manufacturer	TI
ChipWorker Part#	CW578114241
Documentation	Datasheet
	expand all
RoHS	RoHS Compliant
Lead-Free Status	Lead Free

Product Description

TSS721A is a single chip transceiver developed for Meter-Bus standard (EN1434-3) applications.
The TSS721A interface circuit adjusts the different potentials between a slave system and the Meter- Bus master. The connection to the bus is polarity independent and supports full galvanic slave isolation with optocouplers.
The circuit is supplied by the master via the bus. Therefore, this circuit offers no additional load for the slave battery. A power-fail function is integrated.
The receiver has dynamic level recognition, and the transmitter has a programmable current sink.
A 3.3-V voltage regulator, with power reserve for a delayed switch off at bus fault, is integrated.
Meter-Bus Transceiver (for Slave) Meets Standard EN1434-3
Receiver Logic With Dynamic Level Recognition
Adjustable Constant-Current Sink via Resistor
Polarity Independent
Power-Fail Function
Module Supply Voltage Switch
3.3-V Constant Voltage Source
Remote Powering
Up to 9600 Baud in Half Duplex for UART Protocol
Slave Power Support
Supply From Meter-Bus via Output VDD
Supply From Meter-Bus via Output VDD or From Backup Battery
Supply From Battery – Meter-Bus Active for Data
Transmission Only

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