Core Functions

1. Half-Duplex CommunicationIntegrated with one differential driver and one differential receiver, it supports half-duplex communication mode, enabling data transmission and reception via the RS-485 bus.

2. Wide Voltage Power SupplyIt has an operating voltage range of 3.15V to 5.5V, which is compatible with 3.3V and 5V systems, and supports lithium battery or industrial bus input.

3. Fault ProtectionThe bus pins feature ±70V fault protection capability, withstanding overvoltage conditions such as direct power short circuits, incorrect wiring, and connector failures. Meanwhile, it is equipped with a fail-safe receiver for open-circuit, short-circuit, and idle bus scenarios, ensuring system stability under various fault conditions.

4. ESD ProtectionThe bus pins provide ±16kV HBM (Human Body Model) electrostatic discharge protection, enhancing the chip’s anti-static capability and improving product reliability.

Main Application Fields

1. Automotive ElectronicsCompliant with the AEC-Q100 standard, it is suitable for on-board diagnostic systems (OBD), battery management systems (BMS), body control modules, etc. It can operate stably within the ambient temperature range of -40°C to 125°C, withstanding vibration and high temperatures.

2. Industrial AutomationApplicable to PLC control modules, sensor networks, motor drives, etc., it has strong electromagnetic interference (EMI) resistance, making it ideal for long-distance cable communication, and can support up to 320 node connections.

3. Building AutomationIt plays a role in scenarios such as intelligent lighting control, HVAC systems, and security sensor networks. Its half-duplex communication and fault protection functions can prevent equipment damage caused by incorrect installation operations.

4. Communication EquipmentUsable for base station signal relaying, optical fiber module power supply control, etc., its 1Mbps transmission rate can meet the needs of real-time data transmission.

Technical Advantages

1. Low-Power DesignThe maximum standby current is 1μA, and the quiescent current during operation is 4mA. The low-power feature helps extend battery life, making it suitable for applications with strict power consumption requirements.

2. High CompatibilityIt is pin-compatible with the industry-standard SN75176 transceiver, enabling direct upgrade and replacement in most systems, which reduces the cost and difficulty of product upgrading.

3. High-Speed Data TransmissionThe maximum signal transmission rate reaches 1Mbps, which can meet the needs of medium-to-high-speed communication scenarios, such as real-time data transmission in industrial buses.

4. Multi-Node SupportWith low unit load, it can support up to 320 node connections in a network, making it suitable for complex systems that need to connect multiple devices.