Overview
The SN65HVD12DRG4 is a 3.3-V RS-485 transceiver produced by Texas Instruments. This integrated circuit is designed to operate in harsh environments and is suitable for various industrial and automotive applications. It features a robust set of specifications and protections, making it an ideal choice for reliable data transmission over long distances.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 3.3 | V |
| Signaling Rate | 1 Mbps | |
| Unit Load | 1/8 | |
| Bus-pin ESD Protection | >16 kV HBM | |
| Bus-pin Short-circuit Protection | –7 V to 12 V | |
| Standby Current | 1 µA (typical) | |
| Propagation Delay Time (low-to-high) | 30 - 70 ns | |
| Propagation Delay Time (high-to-low) | 30 - 70 ns | |
| Junction Temperature | 145 °C | |
| Package Type | 8-SOIC |
Key Features
- Operates with a 3.3-V supply.
- Bus-pin ESD protection exceeds 16-kV HBM.
- 1/8 Unit-load option available (up to 256 nodes on the bus).
- Optional driver output transition times for signaling rates of 1 Mbps.
- Meets or exceeds the requirements of ANSI TIA/EIA-485-A.
- 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.
Applications
- Digital motor control.
- Utility meters.
- Chassis-to-chassis interconnects.
- Industrial automation and control systems.
- Automotive systems requiring robust communication.
Q & A
- What is the operating supply voltage of the SN65HVD12DRG4?
The SN65HVD12DRG4 operates with a 3.3-V supply. - What is the maximum signaling rate of the SN65HVD12DRG4?
The maximum signaling rate of the SN65HVD12DRG4 is 1 Mbps. - What is the unit load capability of the SN65HVD12DRG4?
The SN65HVD12DRG4 has a 1/8 unit-load option, allowing up to 256 nodes on the bus. - What level of ESD protection does the SN65HVD12DRG4 offer?
The SN65HVD12DRG4 offers bus-pin ESD protection exceeding 16-kV HBM. - What is the typical standby current of the SN65HVD12DRG4?
The typical standby current of the SN65HVD12DRG4 is 1 µA. - Does the SN65HVD12DRG4 meet industry standards for RS-485 communication?
Yes, the SN65HVD12DRG4 meets or exceeds the requirements of ANSI TIA/EIA-485-A. - What kind of protection does the SN65HVD12DRG4 offer against short circuits?
The SN65HVD12DRG4 offers bus-pin short-circuit protection from –7 V to 12 V. - Is the SN65HVD12DRG4 suitable for hot-plugging applications?
Yes, the SN65HVD12DRG4 features glitch-free power-up and power-down protection for hot-plugging applications. - What is the junction temperature limit of the SN65HVD12DRG4?
The junction temperature limit of the SN65HVD12DRG4 is 145 °C. - In what package type is the SN65HVD12DRG4 available?
The SN65HVD12DRG4 is available in an 8-SOIC package.
