CAN transceiver SN65HVD230

harsh environmentautomationdata transmission

Overview
The SN65HVD230 is a 3.3 V CAN transceiver compliant with the ISO 11898-2 high‑speed CAN physical‑layer standard. Designed for data rates up to 1 Mbps, it interfaces 3.3‑V microcontrollers and CAN controllers to a differential CAN bus for industrial, building‑automation and automotive applications. The device is built for harsh environments and includes multiple protection features and a wide common‑mode range.

Operating modes and R_S pin
The R_S pin (pin 8) supports three modes: high‑speed (R_S tied to ground), slope‑control (external resistor between R_S and ground to set slew rate) and low‑power. Example slew rates: ~15 V/µs with 10 kΩ, ~2 V/µs with 100 kΩ. SN65HVD230 provides a low‑current standby (listen‑only) mode where the driver is off and the receiver remains active; SN65HVD231 implements a sleep mode with both driver and receiver off.

Protections and robustness
The transceiver operates over a −2 V to 7 V common‑mode range and withstands common‑mode transients of ±25 V. Integrated protections include cross‑wire, loss‑of‑ground, overvoltage, overtemperature and thermal‑shutdown. The device also features open‑circuit fail‑safe and glitch‑free power‑up/power‑down protection suitable for hot‑plugging.

Features

• Single 3.3 V supply operation
• Compatible with ISO 11898‑2 (High‑Speed CAN)
• Low‑power replacement for PCA82C250 footprint
• Bus‑pin ESD protection exceeds ±16 kV HBM
• High input impedance — supports up to 120 nodes on a bus
• Adjustable driver transition times via R_S for emissions control
• SN65HVD230: low‑current standby (~370 µA typical)
• SN65HVD231: ultra‑low‑current sleep (~40 nA typical)
• Designed for data rates up to 1 Mbps
• Thermal shutdown and open‑circuit fail‑safe
• Glitch‑free power‑up/power‑down protection

Technical specifications

• Protocols — CAN
• Number of channels — 1
• Supply voltage — 3.0 to 3.6 V
• Bus fault voltage — -4 to 16 V
• Common‑mode bus range — -2 V to 7 V; transient withstand ±25 V
• Signaling rate (max) — 1 Mbps
• Bus‑pin ESD protection — > ±16 kV HBM
• Max nodes on bus — up to 120 (high input impedance)
• Standby current (SN65HVD230) — ~370 µA (typ.)
• Sleep current (SN65HVD231) — ~40 nA (typ.)
• Package — typical: 8‑pin SOIC (D)

Package and documentation
Typical package: 8‑pin SOIC. Datasheet, application notes, IBIS models and evaluation module information are available for design, simulation and evaluation.