Overview
The SN65HVD30DRG4, produced by Texas Instruments, is a 3.3-V full-duplex RS-485 driver and receiver. This device is part of the SN65HVD3x family, designed for reliable data transmission over long cable lengths, up to 1500 meters, and is suitable for both RS-422 and RS-485 applications. The SN65HVD30 is fully enabled without the need for external enabling pins and operates over a wide temperature range from –40°C to 85°C, with low power dissipation allowing operation up to 105°C or 125°C depending on the package option.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 3 | 3.3 | 3.6 | V |
| Signaling Rate | - | 26 | - | Mbps |
| Differential Load Resistance (RL) | 54 | 60 | - | Ω |
| High-Level Input Voltage (VIH) | - | 2 VCC | - | V |
| Low-Level Input Voltage (VIL) | 0 | 0.8 | - | V |
| Differential Input Voltage (VID) | -12 | - | 12 | V |
| High-Level Output Current (IOH) | -60 | - | - | mA |
| Low-Level Output Current (IOL) | 60 | - | - | mA |
| Junction Temperature (TJ) | -40 | - | 150 | °C |
Key Features
- Full-duplex operation for simultaneous transmit and receive capabilities.
- High signaling rates up to 26 Mbps.
- 1/8 unit-load option, allowing up to 256 nodes on the bus.
- Bus-pin ESD protection exceeds 15 kV HBM.
- No external enabling pins required for the SN65HVD30.
- Low standby current of less than 1 μA when both driver and receiver are disabled.
- Operation over a wide temperature range from –40°C to 85°C.
- Low power dissipation, allowing operation up to 105°C or 125°C depending on the package option.
Applications
The SN65HVD30DRG4 is suitable for various applications requiring reliable and high-speed data transmission over long distances, including:
- Industrial automation and control systems.
- Building automation and control systems.
- Point-of-sale terminals and other commercial equipment.
- Medical devices requiring robust communication.
- Automotive systems where reliable data transmission is critical.
Q & A
- What is the maximum signaling rate of the SN65HVD30DRG4?
The maximum signaling rate of the SN65HVD30DRG4 is 26 Mbps.
- How many nodes can be connected on the bus with the SN65HVD30DRG4?
The SN65HVD30DRG4 supports up to 256 nodes on the bus due to its 1/8 unit-load option.
- What is the ESD protection level of the SN65HVD30DRG4?
The bus-pin ESD protection of the SN65HVD30DRG4 exceeds 15 kV HBM.
- Does the SN65HVD30DRG4 require external enabling pins?
No, the SN65HVD30DRG4 does not require external enabling pins.
- What is the standby current of the SN65HVD30DRG4 when both driver and receiver are disabled?
The standby current is less than 1 μA when both the driver and receiver are disabled.
- What is the operating temperature range of the SN65HVD30DRG4?
The SN65HVD30DRG4 operates over a temperature range from –40°C to 85°C.
- What are the typical package options for the SN65HVD30DRG4?
The typical package options include SOIC (8-pin) and other variants like SOIC (14-pin) and VQFN (20-pin).
- What are some common applications for the SN65HVD30DRG4?
Common applications include industrial automation, building automation, point-of-sale terminals, medical devices, and automotive systems.
- How does the SN65HVD30DRG4 handle differential input voltage?
The SN65HVD30DRG4 can handle differential input voltages from –12 V to 12 V.
- What is the high-level output current capability of the SN65HVD30DRG4?
The high-level output current capability is up to –60 mA.
