QA121 Datasheet, PDF (1/4 Pages) MORNSUN Science& Technology Ltd. – Ultra Compact SIP package

DC/DC Converter for IGBT Driver
QAxx1 Series
DC/DC Converter for IGBT driver
FEATURES
 High efficiency up to 81%
 Ultra Compact SIP package
 Isolation voltage: 3K VAC
 Max. Capacitive Load:1000uF
 Ultra low isolation capacitance
 Operating temperature range: -40℃ to +105℃
Patent Protection RoHS
 No-load operation allowed
QAxx1 series are DC-DC converters for IGBT drivers. Their ultra low isolation capacitance can improve the capability of anti-interference.
The built-in common-ground mode of the unique asymmetric voltage output mode reduces the driver loss of IGBT driver. They feature
short-circuit protection and auto-recovery, and can be widely used in:
1. General inverter
2. AC servo drive system
3. Electric welding machine
4. Uninterruptible power supply (UPS)
Selection Guide
Part No.
QA121
QA151
QA241
Input
Input Voltage(VDC)
Nominal(Range)
12
(11.4-12.6)
15
(14.25-15.75)
24
(22.8-25.2)
Input Current(mA, Typ.)
full load/no-load
280/40
230/35
144/30
Output
Output Voltage Output Current
(VDC)+Vo/-Vo (mA)+Io/-Io
Efficiency
(%,Min./Typ)
@ Full Load
+15/-8.0
+120/-120
78/81
Max.
Capacitive
Load (µF)
1000
Input Specifications
Item
QA121
Input Surge Voltage QA151
QA241
Input Filter
Hot Plug
Operating Conditions
DC
DC
DC
Min.
Typ.
Max.
Unit
-0.7
--
14
-0.7
--
16
VDC
-0.7
--
26
Filter capacitor
Unavailable
Output Specifications
Item
+Vo
QA121
-Vo
+Vo
Output Voltage QA151
-Vo
+Vo
QA241
-Vo
Output Voltage Accuracy
Operating Conditions
Vin=12VDC，Pin6 & Pin7 +Io= +120mA
Vin=12VDC，Pin5 & Pin6 -Io= -120mA
Vin=15VDC，Pin6 & Pin7 +Io= +120mA
Vin=15VDC，Pin5 & Pin6 -Io= -120mA
Vin=24VDC，Pin6 & Pin7 +Io= +120mA
Vin=24VDC，Pin5 & Pin6 -Io= -120mA
100mA load
Positive output
Negative output
10% -100% load
Line Regulation
Load Regulation
Input voltage range
10%-100% load
Positive output
Negative output
Positive output
Negative output
Min.
Typ.
Max.
14.25
15
15.75
-6.4
-8
-9.6
14.25
15
15.75
-6.4
-8
-9.6
14.25
15
15.75
-6.4
-8
-9.6
-5
--
+5
-20
--
+20
See tolerance envelope
Curve(Fig. 2,Fig. 3)
-5
--
+5
-20
--
+20
--
8
15
--
10
15
Unit
VDC
%
%
%
2015.09.14-A/0
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