Overview
The SN65HVD3088EDRG4, produced by Texas Instruments, is a low-power RS-485 transceiver designed for half-duplex communication. This device is part of the SNx5HVD308xE family and is optimized for high-speed data transmission up to 20 Mbps. It operates on a 4.5-V to 5.5-V supply and is fully compliant with the TIA/EIA-485A standard. The transceiver features low supply current, typically 0.3 mA, and an ultra-low shutdown current, making it ideal for power-sensitive applications. The device also includes internal ESD protection and power-on reset circuits to ensure stable operation.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 4.5 | 5.5 | 5.5 | V |
| Signaling Rate | - | - | 20 | Mbps |
| Operating Free-Air Temperature (TA) | -40 | - | 85 | °C |
| Junction Temperature (TJ) | -40 | - | 130 | °C |
| High-Level Input Voltage (VIH) | 2 | - | VCC | V |
| Low-Level Input Voltage (VIL) | 0 | - | 0.8 | V |
| Differential Input Voltage (VID) | -12 | - | 12 | V |
| Output Current (IO) | -60 | - | 60 | mA |
| Differential Load Resistance (RL) | 54 | - | 60 | Ω |
Key Features
- Low-power operation with typical supply current of 0.3 mA and ultra-low shutdown current.
- High-speed data transmission up to 20 Mbps.
- Full compliance with TIA/EIA-485A standard.
- Internal ESD protection up to ±15-kV Human Body Model (HBM).
- Wide common-mode range and high noise immunity.
- Power-on reset circuits to keep outputs in a high-impedance state until supply voltage stabilizes.
- Thermal shutdown function to protect against system fault conditions.
- Support for up to 256 units on a common RS-485 bus.
- Available in SOIC, VSSOP, PDIP, and NS packages.
Applications
- Energy meter networks.
- Electrical inverters.
- Status and command signals across telecom racks.
- Cabled chassis interconnects.
- Industrial automation networks where noise tolerance is essential.
Q & A
- What is the maximum signaling rate of the SN65HVD3088EDRG4?
The SN65HVD3088EDRG4 supports signaling rates up to 20 Mbps.
- What is the typical supply current of the SN65HVD3088EDRG4?
The typical supply current is 0.3 mA, exclusive of the load.
- What is the operating temperature range for the SN65HVD3088EDRG4?
The device operates from -40°C to 85°C.
- What is the ESD protection level of the SN65HVD3088EDRG4?
The device has internal ESD protection up to ±15-kV Human Body Model (HBM).
- How many units can share a common RS-485 bus with the SN65HVD3088EDRG4?
Up to 256 units can share a common RS-485 bus.
- What packages are available for the SN65HVD3088EDRG4?
The device is available in SOIC, VSSOP, PDIP, and NS packages.
- What is the purpose of the power-on reset circuits in the SN65HVD3088EDRG4?
The power-on reset circuits keep the outputs in a high-impedance state until the supply voltage has stabilized.
- Does the SN65HVD3088EDRG4 have thermal protection?
Yes, the device includes a thermal shutdown function to protect against system fault conditions.
- What are some typical applications of the SN65HVD3088EDRG4?
Typical applications include energy meter networks, electrical inverters, telecom rack signals, cabled chassis interconnects, and industrial automation networks.
- Is the SN65HVD3088EDRG4 compliant with any industry standards?
Yes, it is fully compliant with the TIA/EIA-485A standard.
