Power Supplies

1W Isolated & Unregulated DC-DC for Automotive Systems

Mornsun recently launched a new SMD dc-dc converter module CF0505XT-1WR3, which is specifically designed for automotive applications. This new module CF0505XT-1WR3 meets the AEC-Q100 requirements and is an upgraded in design and production technology based on earlier generation module CF0505XT-1WR2.

From design, verification to production processes, CF0505XT-1WR3 module are completely in accordance with IATF16949 system requirements.

Moreover, this new module CF0505XT-1WR3 is compatible with Mornsun previous one CF0505XT-1WR2 in package and size, and is an ideal solution for automotive applications with efficiency up to 82% and output continuous circuit protection (self-recovery).

The CF0505XT-1WR3 is designed for application where isolated output is required from a distributed power system. It can be used in automobile motor control and drive system.

Anticipated applications include motor vehicle communication system controller, engine control system, the ignition system, the motor voltage monitoring, the electronic accelerator pedal, automobile tire pressure detection system, doors and tail lights controller, air conditioning control and battery management system (BMS), etc.

Application Example: BMS for New Energy Vehicles

In the diagram below, 6 CF0505XT-1WR3 modules are used to power 4 communication circuits, voltage and insulation detection circuit, current detection circuit, and achieve the insulation of power circuit, communication circuit and detection circuit to reduce the interference and improve the stability and reliability of the system.

(click on diagram to enlarge)

Summary of features:

  • Meet the AEC-Q100 requirements
  • Compliant to IATF16949
  • Output continuous short-circuit protection
  • Operating temperature range: -40 to +105 degrees C
  • Isolation voltage 3500Vdc
  • Compact SMD package
  • Internal SMD design
  • International standard pin-ou
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