A PDM is a device used to replace conventional relays and fuses in a vehicle electrical system. The Hardwire Electronics PDM35 takes inputs from physical switches, analogue voltages, or the CAN bus, and provides power to different electronic devices such as radiator fans, fuel pumps and head lights.

The current being drawn from each connected device is continuously monitored. If the measured current is too high due to a fault, the PDM switches off the respective output to prevent further damage to the wiring loom or the connected device. The PDM can then retry the output to see if the fault has cleared.

A wide option of keypads available from 4-15 Button, they are a perfect accompaniment  to the Hardwire Electronics PDMs.

Product Details: - Included

• PDM35
• 4x DT/AT Connectors + Contacts + Wedgelocks
• 1x M8 Ring Terminal
• 1x Ring Terminal Cover
• USB Flash Drive with Pro PDM Configurator Software and Instruction preloaded
• 2m USB Cable
• Printed A4 instruction manual
• 2x Hardwire Electronics Stickers

GENERAL FEATURES

• Size: 200x160x54mm.

• Weight: PDM15 645g | PDM25 690g | PDM35 735g.

• Operating Voltage: 12/24V (4V to 32V).

• Quiescent Current Draw: 4-5mA

• Operating Current Draw: 210mA @12V

• Operating Temperature:-55°C to 90°C (-67°F to 194°F).

• Construction: Glass Fibre reinforced plastic.

• IP Rating: IP67 water and dust resistant.

• Connectors: 4x DT/AT 12-Pin, M8 Power Stud.

• Update Rate: Up to 2000Hz.​

• USB connection to a Windows PC. No external programmer is required. 

• Free and easy to use configuration software. 

• 9-Axis IMU

INPUTS

​16x Analogue inputs, which can also serve as digital inputs.

• Measurement Range: Each input can measure between 0V-25V.

• Measurement Resolution: 12-Bit, or 0.01V

• Fully protected for input voltages from -24V to 40V.

• Integrated 200K Pull up, 40K down resistors allow for positive and ground switching. 

• Inputs can be configured as Momentary or Latched, allowing for different types of switches to be used.

• Hysteresis voltage can be added for extra resilience to voltage noise.

• Frequency Measurement up to 300Hz with automatic triggering. 

• Software defined filters.

OUTPUTS​

• 4x High/Low side, reverse current blocking outputs capable of supplying 20A continuous (Pin-limited to 13A @125degC) and 80A Peak

• (PDM15 has 11x, PDM25 has 21x, PDM35 has 31x) High side outputs capable of supplying 20A continuous (Pin-limited to 13A @125degC) and 80A Peak.

• 120A combined output maximum current

• Protection: Each output is overcurrent, overtemperature, load dump and reverse polarity protected.

• Output Current Control Steps: 100mA (0.1A).

• Output Current Measurement resolution: 3mA

• Peak fuse and High fuse thresholds can be set to allow for inrush current. 

• Trip Mode can be set to Instant (output trips immediately if the current exceeds the threshold) or Normal (acts like a normal physical fuse and allows short current spikes). 

• Outputs can be configured to stay on for a specified time after the input is removed, useful for radiator fans or water pumps. 

• Outputs can be retried multiple times after an over-current event is detected.

• 1000Hz PWM on each output, with variable duty cycle mapping. 

• Soft start on each output for smoother turn on of devices. 

• Advanced logic functions can be made to control the output as desired. 

• Automatic output current trip threshold tuning.