CA-IS3440
Isolated LIN transceiver with 5kVrms isolation, 20kbps data rate, and automotive qualification for body electronics a...
Product Overview
Description
CA-IS3440 is an isolated LIN transceiver featuring reinforced isolation rated at 5kVrms. The device provides complete isolation for LIN communication in automotive body electronics applications.
With support for LIN protocol up to 20kbps and comprehensive fault protection, this transceiver ensures reliable communication in harsh automotive environments.
The device includes wake-up detection, bus dominant timeout protection, and thermal shutdown for safe operation in automotive systems.
Product Series
CA
Primary Application
Automotive body electronics
Key Features
- 5kVrms reinforced isolation
- LIN 2.2A compliant
- 20kbps data rate
- Wake-up detection
- Dominant timeout protection
- Thermal shutdown
- AEC-Q100 Grade 1 qualified
- Low standby current
Specifications
| Protocol | LIN 2.2A |
|---|---|
| Isolation Voltage | 5kVrms (reinforced) |
| Data Rate | Up to 20kbps |
| Bus Protection | ±8kV ESD |
| Supply Voltage | 3.3V or 5V (logic side) |
| Operating Temperature | -40°C to +125°C |
| Package | SOIC-8 |
Applications
Automotive body electronics
Automotive and EV electronics
Door control modules
Industrial automation and control
Seat control systems
Industrial automation and control
Climate control
Industrial automation and control
Lighting control
Industrial automation and control
Sensor interfaces
Sensor signal conditioning
Diagnostic systems
Electronic system design
FAE Expert Insights
"CA-IS3440 is purpose-built for automotive LIN applications. The 5kVrms isolation provides excellent protection in automotive environments where ground differences and transients are common. I've used this part in body control modules where reliable LIN communication is critical. The AEC-Q100 qualification gives confidence for automotive deployment."
AEC-Q100 qualified isolated LIN for automotive body electronics
— Dr. Chen Wei, BeiLuo
Frequently Asked Questions
What is LIN protocol used for in automotive?
LIN (Local Interconnect Network) is a low-cost serial communication protocol used in automotive for body electronics applications where bandwidth requirements are modest. Typical uses include: Door modules (locks, windows, mirrors); Seat control (position, heating); Climate control (sensors, actuators); Lighting control; and Sensor interfaces. LIN operates at up to 20kbps with single-wire communication, making it cost-effective for these applications.
Use LIN for low-cost body electronics where CAN bandwidth is not needed.