Technical Explanation
SKiiP
®
4 F-Option Board
© by SEMIKRON
2017-08-30 - Rev02
13 / 21
7.2
Not used Signals
For more details please see Technical Explanation SKiiP
®
4 Rev.3 Chapter 5.2.11 ”Reserved or not used
signals”.
8
Pin Description of optical connectors X4, X5, X6
Table 1: Description of optical connectors X4, X5, X6
Connector Type
Signal description
X4
Optical Receiver
Type: HFBR-2521ETZ, horizontal
Receives the PWM control signal for TOP-
IGBT from the controller
X5
Optical Transmitter
Type: HFBR-1521ETZ, horizontal
Transmits the GPIO error signal from SKiiP4
driver to controller
X6
Optical Receiver
Type: HFBR-2521ETZ, horizontal
Receives the PWM control signal for BOT-
IGBT from the controller
The following fiber optical cable type was used for the qualification: Leoni KHPS-HPS11005m. This fiber optic
cable consists of:
2 optical connectors SXHP-SSO-19-0040 (incl. crimp barrel)
5m long optical fiber cable V2Y 1P980/1000.
9
Power Supply
Please refer to SKiiP
®
4 Technical Explanation Rev.3 Chapter 5.2 “Gate driver interface SkiFace” for further
information and pin out of connector X2.
The pin assignment of power supply connector X3 is shown in the Table 2.
Table 2: Power supply connector X3 pin assignment
Pin
Signal name
Function
01
n.c.
02
GND
Ground
03
+24V
Supply voltage input for F-Option Board and SKiiP
®
4
Table 3 shows the required features of an appropriate power supply for a SKiiP
®
4 system.
Table 3: Requirements of the power supply
Power supply
Supply voltage should be +24V (+/- 20%). The supply is defined at the F-Option
Board input.
Maximum rise time of 24V
< 2s
Rated current
1.5 times of the maximum SKiiP driver input current
Minimum peak
2 times of the maximum SKiiP driver input current (at least 1,5A)
For further information please refer to the Technical Explanation SKiiP
®
4.
Please note:
The supply voltage for SKiiP
®
4 F-Option Board and SKiiP
®
4 system can be provided over
power supply connector X2 if the voltage drop over the ribbon cable will not be too high due to the supply
current (please see data sheet SKiiP
®
4 for supply current formula). Otherwise supply connector X3
should be used.
Please note:
Power supply cable should be twisted or shielded to enhance the EMI robustness.
