Overview
The SN65HVD72DRBR is a 3.3-V half-duplex RS-485 transceiver manufactured by Texas Instruments. This device is designed for demanding industrial applications, offering robust drivers and receivers in a compact package. It operates from a single 3.3-V power supply and features a wide common-mode voltage range, making it suitable for multi-point applications over long cable runs. The device is characterized over an extended industrial temperature range of –40°C to 125°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SON-8 (3x3) | |
| Operating Temperature Range | –40 to 125 | °C |
| Supply Voltage (VCC) | 3 to 3.6 | V |
| Signaling Rate | 250 kbps | |
| ESD Protection | ±15 kV HBM, ±12 kV IEC 61000-4-2, ±4 kV IEC 61000-4-4 | |
| Differential Input Voltage | –12 to 12 | V |
| Output Current, Driver | –60 to 60 | mA |
| Output Current, Receiver | –8 to 8 | mA |
| Differential Load Resistance | 54 to 60 | Ω |
| Differential Load Capacitance | 50 | pF |
Key Features
- Small-size VSSOP and SOIC packages for board space savings and drop-in compatibility.
- Bus I/O protection with high levels of ESD protection (±15 kV HBM, ±12 kV IEC 61000-4-2, ±4 kV IEC 61000-4-4).
- Extended industrial temperature range of –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 current (< 1 mA).
- 5-V tolerant logic inputs compatible with 3.3-V or 5-V controllers.
- Glitch-free power-up and power-down bus inputs and outputs.
Applications
The SN65HVD72DRBR is suitable for various industrial applications, including:
- Multi-point applications over long cable runs due to its wide common-mode voltage range.
- Industrial automation and control systems requiring robust ESD protection and reliable communication.
- Remote sensors and actuators in harsh environments.
- Building automation and control systems.
Q & A
- What is the operating temperature range of the SN65HVD72DRBR?
The operating temperature range is –40°C to 125°C.
- What is the signaling rate of the SN65HVD72DRBR?
The signaling rate is 250 kbps.
- What type of ESD protection does the SN65HVD72DRBR offer?
The device offers ±15 kV HBM, ±12 kV IEC 61000-4-2, and ±4 kV IEC 61000-4-4 ESD protection).
- What is the supply voltage range for the SN65HVD72DRBR?
The supply voltage range is 3 to 3.6 V).
- Is the SN65HVD72DRBR compatible with 5-V logic inputs?
Yes, it is 5-V tolerant and compatible with 3.3-V or 5-V controllers).
- What is the maximum number of nodes that can be connected to the SN65HVD72DRBR?
It allows over 200 connected nodes due to low unit-loading).
- What is the quiescent current of the SN65HVD72DRBR during operation?
The quiescent current is less than 1 mA).
- Does the SN65HVD72DRBR have glitch-free power-up and power-down capabilities?
Yes, it features glitch-free power-up and power-down bus inputs and outputs).
- What types of packages are available for the SN65HVD72DRBR?
The device is available in VSSOP, SOIC, and VSON packages).
- Is the SN65HVD72DRBR RoHS compliant?
Yes, the device is RoHS compliant).
