Overview
The SN65HVD11DG4, produced by Texas Instruments, is a 3.3-V RS-485 transceiver designed for bidirectional data communication on multipoint bus-transmission lines. This integrated circuit operates with a single 3.3-V power supply and is compatible with the ANSI standard TIA/EIA-485-A and ISO 8482:1993. The device features a 3-state differential line driver and a differential input line receiver, making it suitable for various industrial and commercial applications.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Supply Voltage | 3-V to 3.6-V | 3-V to 3.6-V |
| Signaling Rate | Maximum data rate | 10 Mbps |
| Package Type | SOIC (8-pin) | SOIC (8-pin) |
| Body Size | 4.90 mm × 3.91 mm | 4.90 mm × 3.91 mm |
| Operating Temperature | –40°C to 125°C | –40°C to 125°C |
| Bus-pin ESD Protection | HBM (Human Body Model) | 16 kV |
| Differential Input Voltage | –12 V to 12 V | –12 V to 12 V |
| Differential Load Resistance | 54 Ω to 60 Ω | 54 Ω to 60 Ω |
| Differential Load Capacitance | 50 pF | 50 pF |
| High-level Output Current (Driver) | –60 mA | –60 mA |
| Low-level Output Current (Driver) | 60 mA | 60 mA |
| High-level Output Current (Receiver) | –8 mA | –8 mA |
| Low-level Output Current (Receiver) | 8 mA | 8 mA |
| Propagation Delay Time | 30 ns to 55 ns | 30 ns to 55 ns |
| Thermal Shutdown Junction Temperature | 165 °C | 165 °C |
Key Features
- Operates with a single 3.3-V power supply.
- Bus-pin ESD protection exceeds 16-kV HBM.
- 1/8 Unit-load option available, supporting up to 256 nodes on the bus.
- Optional driver output transition times for signaling rates of 1 Mbps, 10 Mbps, and 32 Mbps.
- Meets or exceeds ANSI TIA/EIA-485-A and ISO 8482:1993 standards.
- Bus-pin short-circuit protection from –7 V to 12 V.
- Low-current standby mode: 1 µA, typical.
- Open-circuit, idle-bus, and shorted-bus fail-safe receiver.
- Thermal shutdown protection.
- Glitch-free power-up and power-down protection for hot-plugging applications.
- SN75176 footprint compatibility.
Applications
- Digital motor control.
- Utility meters.
- Chassis-to-chassis interconnects.
- Electronic security stations.
- Industrial process control.
- Building automation.
- Point-of-Sale (POS) terminals and networks.
Q & A
- What is the operating voltage of the SN65HVD11DG4?
The SN65HVD11DG4 operates with a single 3.3-V power supply.
- What is the maximum signaling rate of the SN65HVD11DG4?
The maximum signaling rate of the SN65HVD11DG4 is 10 Mbps.
- What type of package does the SN65HVD11DG4 come in?
The SN65HVD11DG4 comes in an 8-pin SOIC package.
- What is the ESD protection level of the SN65HVD11DG4?
The bus-pin ESD protection exceeds 16-kV HBM.
- What is the thermal shutdown junction temperature of the SN65HVD11DG4?
The thermal shutdown junction temperature is 165 °C.
- Does the SN65HVD11DG4 support hot-plugging applications?
Yes, it features glitch-free power-up and power-down protection for hot-plugging applications.
- What are the common applications of the SN65HVD11DG4?
Common applications include digital motor control, utility meters, chassis-to-chassis interconnects, electronic security stations, industrial process control, building automation, and POS terminals and networks.
- How many nodes can be supported on the bus with the 1/8 unit-load option?
The 1/8 unit-load option supports up to 256 nodes on the bus.
- What is the standby current of the SN65HVD11DG4 when the driver and receiver are disabled?
The standby current is typically 1 µA when the driver and receiver are disabled.
- Does the SN65HVD11DG4 meet any specific industry standards?
Yes, it meets or exceeds ANSI TIA/EIA-485-A and ISO 8482:1993 standards.
