The MC34SB0800 octal valve and pump controller System-on-Chip (SoC) from NXP Semiconductors provides a highly integrated solution for driving proportional and digital valves, as well as a pump. It is ideal for applications which are required to drive hydraulic or pneumatic valves with a simple electronic circuit.
The MC34SB0800 consists of four regulated low-side drivers and four low-side digital drivers, plus a high-side driver to control a DC motor.
NXP also supplies a valve and pump control reference design based on the MC34SB0800 SoC together with a Kinetis® microcontroller and two power MOSFETs. Monitoring and protection features are implemented to protect the system from hazards such as short-circuits, over-current or over-voltage events and other abnormal conditions. A predriver MOSFET increases safety by turning off all valves in the event of system problems.
The reference design is supported by an NXP Processor Expert® embedded component for the MC34SB0800. This component provides access to all the valve driver features such as writing/reading SPI registers, initialisation, monitoring and control of drivers.
The MC34SB0800 is suitable for loads with a high inrush current, and can drive them at frequencies up to 5kHz.
The device is suited to use in harsh environments.
- Supply-voltage range: 6V to 36V
- Valve drivers have low on-resistance
- Switch-off energy drained by digital valve driver so no freewheeling diode required
- All actuators controllable via SPI
- 10-bit ADC
- Integrated DC pump motor predriver controller
- Oxygen flow control
- Blood pressure monitoring
- Heavy equipment
- Irrigation systems
- Cooling systems
- Petrol pump
- Consumer devices
- Soda dispensers
- 3D printers
- Shower/bath systems
Orderable Part Number: TWR-SB0800-36EVB