Overview
The SN65HVD72DGKR from Texas Instruments is a half-duplex transceiver designed for RS-485 applications. It features robust 3.3-V drivers and receivers in a small VSSOP package, making it suitable for demanding industrial environments. The device operates from a single 3.3-V power supply and is characterized over a wide ambient temperature range from –40°C to 125°C. It is ideal for multi-point applications over long cable runs due to its wide common-mode voltage range and internal bus port configuration for two-wire bus communication.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | VSSOP (8) | - |
| Operating Temperature Range | –40°C to 125°C | °C |
| Supply Voltage | 3.0 V to 3.6 V | V |
| Signaling Rate | Up to 250 kbps | kbps |
| Driver Differential Output Voltage | 1.5 V to 2 V | V |
| Receiver Hysteresis | 80 mV | mV |
| Quiescent Supply Current | < 1 mA | mA |
| Standby Supply Current | < 2 µA | µA |
| ESD Protection | >±15 kV HBM, >±12 kV IEC 61000-4-2, >±4 kV IEC 61000-4-4 | kV |
Key Features
- Small-size VSSOP packages save board space, or SOIC for drop-in compatibility.
- Bus I/O protection with high levels of ESD protection.
- Extended industrial temperature range: –40°C to 125°C.
- Large receiver hysteresis (80 mV) for noise rejection.
- Low unit-loading allows over 200 connected nodes.
- Low power consumption with low standby supply current (< 2 µA) and quiescent supply current (< 1 mA).
- 5-V tolerant logic inputs compatible with 3.3-V or 5-V controllers.
- Signaling rate options optimized for 250 kbps.
- Glitch-free power-up and power-down bus inputs and outputs.
Applications
- Factory Automation
- Telecommunications Infrastructure
- Motion Control
Q & A
- What is the operating temperature range of the SN65HVD72DGKR?
The operating temperature range is from –40°C to 125°C. - What is the signaling rate of the SN65HVD72DGKR?
The signaling rate is up to 250 kbps. - What type of ESD protection does the SN65HVD72DGKR offer?
The device offers >±15 kV HBM, >±12 kV IEC 61000-4-2, and >±4 kV IEC 61000-4-4 ESD protection. - How many nodes can be connected using the SN65HVD72DGKR?
Over 200 nodes can be connected due to low unit-loading. - What is the quiescent supply current of the SN65HVD72DGKR?
The quiescent supply current is less than 1 mA. - Is the SN65HVD72DGKR compatible with 5-V logic inputs?
Yes, the device is 5-V tolerant and compatible with 3.3-V or 5-V controllers. - What is the receiver hysteresis of the SN65HVD72DGKR?
The receiver hysteresis is 80 mV. - What are the typical applications of the SN65HVD72DGKR?
Typical applications include factory automation, telecommunications infrastructure, and motion control. - What is the package type of the SN65HVD72DGKR?
The package type is VSSOP (8). - Does the SN65HVD72DGKR support glitch-free power-up and power-down?
Yes, the device supports glitch-free power-up and power-down bus inputs and outputs.
