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Isahaya Electronics |
DESCRIPTION
The VLA124 is an isolated DC-DC converter module.
Its output power is 1.5W and the input is isolated from
the output. The over-current protection circuit is built-in
and it is the best for on-board power supplies, such as
industrial equipment and control equipment.
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FEATURES
-Input voltage range : 21.6 to 26.4V
-Output : +15V+/-5%, 100mA (output power : 1.5W)
-Isolation voltage strength
4000Vrms, 1 minute (Input to output)
-Low noise
-Built-in over current protection
-ROHS compliance
HYBRID IC
VLA124-24151R
ISOLATED DC-DC CONVERTER
OUTLINE DRAWING
Type Number
Lot No. and Pin No.1
Max 42.0
VLA124-24151R
Dimensions: mm
Mark Surface
Pin No.
2.54
0.75
+0.15
- 0.10
Max 6.0
Max 6.0
Max 7.5
0.5
+0.20
- 0.10
Max 11.0
Max 18.0
APPLICATIONS
On-board power supplies for control equipment
BLOCK DIAGRAM
VIN+ 9
10
VIN- 12
13
INVERTER
TRANSFORMER
RECTIFIER
CONSTANT
VOLTAGE
CONTROL
4 Vo+
3 Vo-
1,2,5pin:N.C.
1
HYBRID IC
VLA124-24151R
ISOLATED DC-DC CONVERTER
MAXIMUM RATINGS (Unless otherwise noted, Ta=25deg)
Symbol
Parameter
Conditions
VIN Input voltage
IO Output current
Topr Operating temperature
Pin 9,10–12,13
Pin 3–4
No condensation(*1)
Tstg Storage temperature
No condensation
Viso
Isolation voltage between input
and output
Sine wave voltage, 60Hz, 1min
(*1) Please refer to de-rating characteristics.
Ratings
27
100
-20 ~ +80(*1)
-25 ~ +85
4000
Unit
V
mA
deg
deg
Vrms
ELECTRICAL CHARACTERISTICS (Unless otherwise noted, VIN=24V, Ta=25deg)
Symbol
VIN
VO
Reg-I
Reg-L
Vp-p
η
Parameter
Input voltage
Output voltage
Input regulation
Load regulation
Output ripple
Efficiency
Test conditions
Recommended range
IO=0 ~ 100mA
IO=100mA, VIN=21.6 ~ 26.4V
IO=0 ~100mA
IO=100mA
IO=100mA
MIN.
21.6
14.25
-
-
-
Limits
TYP.
-
15
-
-
50
MAX.
26.4
15.75
50
400
50
-
Unit
V
V
mV
mV
mV
%
TEST CIRCUIT
VIN
100μF +
9,10 4
IO
A
VLA124
47μF +
LOAD V VO
12,13
3
※It is used the electrolytic capacitors which has the low impedance for output capacitor.
2
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