SCALE™-2 1SC0450E2B0
Preliminary Description & Application Manual
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Page 8
Recommended Interface Circuitry for the Primary-Side Connector
Fig. 5
Recommended user interface of the 1SC0450E2B0 (primary side)
Description of Primary-Side Interface
General
The primary-side interface of the 1SC0450E2B0 driver is very simple and easy to use.
The driver primary side is equipped with a 5-pin interface connector with the following terminals:
2x power-supply terminals VCC and VDC
2x ground terminals GND
1x status output SO (indicating a fault during primary-side under-voltage)
All inputs and outputs are ESD-protected.
VCC
terminal
The driver has one VCC terminal on the interface connector to supply the primary-side electronics with 15V.
VDC terminal
The driver has one VDC terminal on the interface connector to supply the DC/DC converter for the secondary
side.
VDC should be supplied with 15V. It is recommended to connect the VCC and VDC terminals to a common
15V power supply. In that case, the driver limits the inrush current at startup and no external current
limitation of the voltage source for VDC is needed.