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CUI |
SERIES: VQA │ DESCRIPTION: DC-DC CONVERTER
FEATURES
• designed for IGBT driver modules
• small footprint
• 3,000 Vac isolation
• short circuit protection
• temperature range (-40~85°C)
• efficiency up to 80%
date 02/05/2013
page 1 of 5
MODEL
input
voltage
range
(Vdc)
output
voltage (Vo1)
typ
(Vdc)
output
voltage (Vo2)
typ
(Vdc)
VQA-S9-D15-SIP
9 ~ 15
15
-8
VQA-S12-D15-SIP
11.6 ~ 12.4
15
-8.7
VQA-S15-D15-SIP
14.5 ~ 15.5
15
-8.7
VQA-S15-D17-SIP
14.5 ~ 15.5
17
http://www.DataSheet4U.net/
-8.6
VQA-S24-D15-SIP
23.3 ~ 24.7
15
-8.7
Note:
1. ripple and noise measured at 20 MHz bandwidth, between pin 6 & 7 (Vo1), full load
2. between pin 6 & 7 (Vo1), full load
3. all specifications are measured at 25°C unless otherwise specified
output current
(Io1) (Io2)
max
(mA)
max
(mA)
100 80
80 40
80 40
80 40
80 40
ripple
and noise1
max
(mVp-p)
200
200
150
150
300
efficiency2
typ
(%)
80
80
80
80
80
PART NUMBER KEY
VQA-S XX -D XX -SIP
Base Number
Input Voltage
Output Voltage
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datasheet pdf - http://www.DataSheet4U.net/
CUI Inc │ SERIES: VQA │ DESCRIPTION: DC-DC CONVERTER
date 02/05/2013 │ page 2 of 5
INPUT
parameter
input voltage
conditions/description
VQA-S9-D15-SIP
VQA-S12-D15-SIP
all other models
VQA-S24-D15-SIP
OUTPUT
parameter
line regulation
conditions/description
for Vin change of 1%
VQA-S12-D15-SIP
VQA-S15-D15-SIP
VQA-S15-D17-SIP
VQA-S24-D15-SIP
for Vin change of 25%
VQA-S9-D15-SIP
PROTECTIONS
parameter
short circuit protection
conditions/description
yes
SAFETY AND COMPLIANCE
parameter
isolation voltage
isolation capacitance
RoHS compliant
conditions/description
tested for 1 minute at 1 mA max.
input to output, 1 kHz / 1 V
all other models
VQA-S15-D17-SIP
VQA-S9-D15-SIP
yes
ENVIRONMENTAL
parameter
operating temperature
storage temperature
TEST CIRCUIT
conditions/description
VQA-S9-D15-SIP
all other models
http://www.DataSheet4U.net/
min
9
11.6
14.5
23.3
min
min
typ
12
12
15
24
typ
1.2
1.3
1.2
1.2
1.2
typ
min
3,000
typ
6.6
8
10
min
-40
-40
-50
typ
VIN
1
C1 +
DC-DC
converter
7
C2 + V
6
A
Load
25
17
VIN C1 +
DC-DC
converter
6
C3 + V
A
Load
25
max
15
12.4
15.5
24.7
max
1.5
1.5
1.5
1.5
1.5
max
max
10
max
105
85
125
units
Vdc
Vdc
Vdc
Vdc
units
%
%
%
%
%
units
units
Vac
pF
pF
pF
units
°C
°C
°C
APPLICATION CIRCUIT
Control Signal
IGBT Driver
Rg
17
C2 +
VIN C1 +
DC-DC
converter
6
C3 +
25
C1*, C2, C3: 100 F/35V (low impedance)
* C1: 100 F/65V for S24 version
IGBT
VIN: S9, S12, S15
C1: 100 F/35V (low impedance)
C2: 100 F/35V (low impedance)
C3: 100 F/35V (low impedance)
VIN: S24
C1: 100 F/65V (low impedance)
C2: 100 F/35V (low impedance)
C3: 100 F/35V (low impedance)
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1. The wire between the converter and IGBT driver must as
short as possible.
2. External filter capacitors should be connected as close as
possible to the converter and the IGBT driver.
3. To ensure the high peak gate current, the filter capacitors
should be low impedance.
4. The output average power of the IGBT driver should be less
than the output power of DC-DC module.
5. In order to avoid over temperature damage for long time
short-circuit, the recommended short-circuit time is less
than ten minutes at 25°C.
datasheet pdf - http://www.DataSheet4U.net/
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