QA121 Datasheet, PDF (3/4 Pages) MORNSUN Science& Technology Ltd. – Ultra Compact SIP package

DC/DC Converter for IGBT Driver
QAxx1 Series
Fig. 2
Fig. 3
Note:Take QA121 as an example, other models can be corresponding reference
Design Reference
1. Typical application
Control Signal
IGBT
Rg
Drive r
I GB T
C1/ C2 /C3
100uF/35V (Low internal resistance capacitance)
1
Vin +Vo
7
C2
Vin ^C1
DC/DC
0V 6
C3
2 GND _{- Vo 5}
Note: On both ends of capacitance C2 and C3 shunt respectively a
capacitance value in 1uF -10uF ceramic capacitors.
Fig. 4
2. It is not allowed to connect modules output in parallel to enlarge the power
3.For more information please find DC-DC converter application notes on www.mornsun-power.com
2015.09.14-A/0
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