SYVECS SYV-X20L Expander X20L

Description SYVECS SYV-X20L Expander X20L

The Syvecs X20L expander controls additional I/O (inputs and outputs) in an automotive electrical installation. Using two CAN controllers, it communicates with master devices and operates as a slave, offering its entire I/O complement. All Syvecs ECUs communicate with the X20L using two wires, while incorporated logic also supports devices from other manufacturers.

Eight outputs support high-side or low-side loads and can be paired to control external DC motors for drive-by-wire and other automotive applications. Twelve low-side outputs can drive solenoids, relays, and external devices, with configurable internal pull-up and flyback diodes. Four DAC outputs convert a binary input number into an analog voltage output, such as mirroring a sensor signal to an external device.

The X20L has 12 flexible AS inputs supporting frequency detection, SENT decoding, thermistors with an internal 3k pull-up, and bipolar operation for VR sensors. The remaining eight inputs are standard 0–5 V ADC inputs. Two NTK lambda sensor circuits allow sensors to connect directly and output the oxygen ratio via CAN to the master device.

Specifications:

• Half Bridge Outputs: 8; support full-bridge, low-side, or high-side drive
• Half Bridge Output Current: 15 A peak for 100 ms; 8 A continuous
• Low-Side Outputs: 12
• Low-Side Output Current: 12 A peak for 100 ms; 6 A continuous
• DAC Outputs: 4; -5 V to 5 V
• Flexible Inputs: 12; support frequency, SENT, thermistor, and bipolar operation
• ADC Voltage Inputs: 8
• NTK Lambda Inputs: 2
• USB Interface: For updates and configuration
• CAN Interfaces: 2 x CAN 2.0B for communication with other controllers or logging systems
• K-Line Interface: 1
• Input Voltage Range: 6–26 V
• Power Supply: Ignition switch logic with high-current supply
• Sealing: IP67 automotive specification
• Operating Temperature: -40°C to 125°C
• Connectors: 2 x 34-way Superseal 1.0
• Dimensions: 150 x 150 mm