10Mbps, 3.3-5V powered, Half-duplex RS-485 Transceiver --- SCM3406ASA
Introduction
SCM3406ASA is a half-duplex low-power consumption transceiver that is fully compliant with TIA/EIA-485A standard.
Powered by a 3-5.5VDC supply, its Bus-Pin ESD protection is up to 15 kV HBM and the bus fault-tolerant voltage range is -15V to +15V.
It consists of a driver and a receiver, both of which can be enabled and disabled independently, and when both are disabled, the driver and receiver output a high resistance state.
SCM3406ASA has only 1/8 of the standard load, which allows up to 256 nodes on a bus, making it suitable for data transmission up to 10 Mbps. And the SCM3406ASA features fail-safe and short-circuit (current-limiting) protection.
Applications
RS-485 transceiver can be widely used in the fields of industrial automation, building automation, intelligent electricity meters, remote signal interaction, transmission, etc.
Typical circuit 1: Half-duplex network topology
Typical circuit 2: Typical transceiver design
Typical circuit 3: RS485 protocol transceiver integrating power isolation, signal isolation, RS485 communication and bus protection
MORNSUN has well-matched solution for Fixed-input IC + 485 IC + Digital isolation IC + Transformer + Surge protection module
Features
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3.0-5.5V wide power supply range
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Operating temperature range: -40℃ to +125℃
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Bus-Pin ESD: 15 kV HBM
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Bus fault-tolerant voltage range is -15V to +15V
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Baud rate up to 10 Mbps in an electrical noise environment
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1/8 Unit Load: up to 256 Nodes on a Bus
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Driver short circuit protection
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Receiver open circuit failure protection
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Strong resistance to noise
