Overview
The SN65HVD3088EDR is a low-power half-duplex RS-485 transceiver produced by Texas Instruments. This device is designed for RS-485 data bus networks and is fully compliant with the TIA/EIA-485A standard. It operates on a 5-V supply and is optimized for high-speed data transmission, making it suitable for various demanding applications. The SN65HVD3088EDR is characterized by its low quiescent power consumption, high ESD protection, and wide common-mode range, which are essential for noise-tolerant environments.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 4.5 | 5.5 | 5.5 | V |
| Operating Temperature (TA) | -40 | 85 | °C | |
| Signaling Rate | 20 | Mbps | ||
| Quiescent Current (Active Mode) | 0.3 | mA | ||
| Quiescent Current (Shutdown Mode) | 1 | nA | ||
| Bus-Pin ESD Protection | ±15 kV | |||
| Differential Load Resistance (RL) | 54 | 60 | Ω | |
| Output Current (IO) | -60 | 60 | mA |
Key Features
- Meets or exceeds the requirements of the TIA/EIA-485A standard
- Low quiescent power: 0.3 mA in active mode and 1 nA in shutdown mode
- Supports up to 256 nodes on a bus with 1/8 unit load
- Bus-pin ESD protection up to ±15 kV
- Industry-standard SN75176 footprint
- Fail-safe receiver for bus open, bus shorted, or bus idle conditions
- Glitch-free power-up and power-down bus inputs and outputs
- Thermal-shutdown function to protect against overtemperature conditions
- Power-on-reset circuits to keep outputs in a high-impedance state until supply voltage stabilizes
Applications
- Energy meter networks
- Motor control
- Power inverters
- Industrial automation
- Building automation networks
- Battery-powered applications
- Telecommunications equipment
- Cabled chassis interconnects
Q & A
- What is the operating temperature range of the SN65HVD3088EDR?
The operating temperature range is from -40°C to 85°C, with some packages characterized up to 105°C.
- What is the signaling rate capability of the SN65HVD3088EDR?
The SN65HVD3088EDR is suitable for applications that require signaling rates up to 20 Mbps.
- How much quiescent current does the SN65HVD3088EDR consume in active and shutdown modes?
In active mode, it consumes 0.3 mA, and in shutdown mode, it consumes 1 nA.
- What level of ESD protection does the SN65HVD3088EDR offer?
The device offers bus-pin ESD protection up to ±15 kV.
- Is the SN65HVD3088EDR compliant with industry standards?
Yes, it meets or exceeds the requirements of the TIA/EIA-485A standard.
- What is the maximum number of nodes supported on a bus by the SN65HVD3088EDR?
Up to 256 nodes can share a common RS-485 bus.
- Does the SN65HVD3088EDR have thermal protection?
Yes, it features a thermal-shutdown function to protect against overtemperature conditions.
- What is the typical hysteresis of the receiver input thresholds in the SN65HVD3088EDR?
The typical hysteresis is 30 mV to improve noise immunity.
- What packages are available for the SN65HVD3088EDR?
The device is available in SOIC (D), VSSOP (DGK), and PDIP (P) packages.
- How does the power-on-reset feature work in the SN65HVD3088EDR?
The power-on-reset circuits keep the outputs in a high-impedance state until the supply voltage has stabilized.
