ISAHAYA VLA312-2425

HYBRID IC
VLA312-2425
ISOLATED TYPE DC-DC CONVERTER
DESCRIPTION
The VLA312-2425 is an isolated DC-DC converter designed
to control the industrial equipment. It can input the rectified
AC480V (DC850Vmax) directly and convert to low voltage.
Total output power is 25W.
FEATURES
•Input ------------
475V to 850V DC
•Output----------- +24V, 1.05A (25.2W)
•Electrical isolation (between input and output)
------------- 2500Vrms 1 minute
•Over current protection (auto resumption)
•Over voltage protection
APPLICATIONS
On-board pre-regulator for industrial control equipment
BLOCK DIAGRAM
+VIN
+Vo
RECTIFIER
-Vo
CURRENT
SENSING
-VIN
GATE
CONTROL
POWER
POWER
HIGH SIDE
DRIVE
LOW SIDE
DRIVE
MAIN
CONTROL
FG
HYBRID IC
VLA312-2425
ISOLATED TYPE DC-DC CONVERTER
MAXIMUM RATINGS (unless otherwise noted, Ta=25°C)
Symbol
Parameter
Conditions
Ratings
Unit
VIN
Input voltage
-
850
V
IO
Output current
-
1.05
A
Topr
Operating temperature
-10 ~ +55
°C
Tstg
Storage temperature
No condensation
-20 ~ +75
°C
Sine wave voltage, 60Hz, 1min
2500
Vrms
Viso
(*1)
No condensation
Electrical isolation
between input and output
Please refer to de-rating characteristics.
(*1)
ELECTRICAL CHARACTERISTICS (unless otherwise noted, VIN=680V, Ta=25°C)
Symbol
Parameter
VIN
Input voltage
Vo
Test conditions
Limits
Unit
Min.
Typ.
Max.
Recommended range
475
680
850
V
Output voltage
Io=0.1 ~ 1.05A
22.8
24.0
25.2
V
Reg-I
Input regulation
Io=1.05A, VIN=475~850V
-
-
100
mV
Reg-L
Load regulation
Io=0.1 ~ 1.05A
-
-
150
mV
Vp-p
Ripple voltage
Io=1.05A (*2)
-
-
240
mV
η
Efficiency
Io=1.05A
-
77
-
%
(*2)
Not contain the spike noise.
TEST CIRCUIT DIAGRAM
Io
+V IN
V IN
A
+V O
V Vo
VLA312 -2425
-V IN
-VO
2
Load
HYBRID IC
VLA312-2425
ISOLATED TYPE DC-DC CONVERTER
TYPICAL CHARACTERISTICS
OUTPUT VOLTAGE - OUTPUT CURRENT
CHARACTERISTICS
30
OUTPUT VOLTAGE Vo (V)
120
100
80
60
40
20
0
24
21
18
15
VIN=600V
12
VIN=680V
9
6
0
-10
100
EFFICIENCY η (%)
27
3
0
10
20
30
40
50
60
70
80
0
1
1.5
2
OUTPUT CURRENT Io (A)
EFFICIENCY - OUTPUT CURRENT
CHARACTERISTICS
EFFICIENCY - INPUT VOLTAGE
CHARACTERISTICS
100
90
90
80
80
70
70
60
50
VIN=600V
40
VIN=680V
30
20
10
2.5
60
Io=1.05A
50
40
30
20
10
0
0
0.0
0.2
0.4
0.6
0.8
1.0
1.2
400
OUTPUT CURRENT Io (A)
0.10
27
0.09
24
0.08
INPUT CURRENT IIN (A)
30
21
18
RL=22.9ohm
(Io=1.05A)
15
12
9
6
600
700
800
900
INPUT CURRENT - INPUT VOLTAGE
CHARACTERISTICS
0.07
0.06
0.05
0.04
0.03
RL=22.9ohm
(Io=1.05A)
0.02
3
0.01
0
0.00
0
500
INPUT VOLTAGE V IN (V)
OUTPUT VOLTAGE - INPUT VOLTAGE
CHARACTERISTICS
OUTPUT VOLTAGE Vo (V)
0.5
AMBIENT TEMPERATURE (℃)
EFFICIENCY η (%)
OUTPUT CURRENT DE-RATING (%)
DE-RATING CHARACTERISTICS
0
100 200 300 400 500 600 700 800 900
100 200 300 400 500 600 700 800 900
INPUT VOLTAGE V IN (V)
INPUT VOLTAGE V IN (V)
3
HYBRID IC
VLA312-2425
ISOLATED TYPE DC-DC CONVERTER
OUTLINE DIMENSION
CONNECTOR
90mm
Parts No.
Polarity (pin1)
Polarity (pin2)
Polarity (pin3)
CN1
B2P3-VH, JST
-VIN
--+VIN
55mm
CN1
CN2
35mm
5mm
FOR SAFETY USING
Great detail and careful attention are given to the production activity of Hics, such as the development, the quality of production,
and in it’s reliability. However the reliability of Hics depends not only on their own factors but also in their condition of usage.
When handling Hics, please note the following cautions.
CAUTIONS
Packing
Carrying
The materials used in packing Hics can only withstand normal external conditions.
When exposed to outside shocks, rain and certain environmental contaminators, the packing
materials will deteriorates. Please take care in handling.
1)
2)
3)
4)
5)
Don’t stack boxes too high. Avoid placing heavy materials on boxes.
Boxes must be positioned correctly during transportation to avoid breakage.
Don't throw or drop boxes.
Keep boxes dry. Avoid rain or snow.
Minimal vibration and shock during transportation is desirable.
Storage
When storing Hics, please observe the following notices or possible deterioration of their electrical
characteristics, risk of solderability, and external damage may occur.
1) Devices must be stored where fluctuation of temperature and humidity is minimal, and must
not be exposed to direct sunlight. Store at the normal temperature of 5 to 30 degrees Celsius
with humidity at 40 to 60%.
2) Avoid locations where corrosive gasses are generated or where much dust accumulates.
3) Storage cases must be static proof.
4) Avoid putting weight on boxes.
Extended storage
When extended storage is necessary, Hics must be kept non-processed. When using Hics which
have been stored for more than one year or under severe conditions, be sure to check that the
exterior is free from flaw and other damages.
Maximum ratings
To prevent any electrical damages, use Hics within the maximum ratings.
current, voltage, etc. must not exceed these conditions.
Polarity
To protect Hics from destruction and deterioration due to wrong insertion, make sure of polarity in
inserting leads into the board holes, conforming to the external view for the terminal arrangement.
4
The temperature,
CN2
B2P-VH, JST
+VO
-VO
---
HYBRID IC
VLA312-2425
ISOLATED TYPE DC-DC CONVERTER
Marketing division, Marketing planning department
6-41 Tsukuba, Isahaya, Nagasaki, 854-0065 Japan
Keep safety first in your circuit designs!
・ISAHAYA Electronics Corporation puts the maximum effort into making semiconductor products better and more reliable,
but there is always the possibility that trouble may occur with them. Trouble with semiconductors may lead to personal
injury, fire or property damage. Remember to give due consideration to safety when making your circuit designs, with
appropriate measures such as (1)placement of substitutive, auxiliary circuits, (2)use of non-flammable material or
(3)prevention against any malfunction or mishap.
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to ISAHAYA Electronics Corporation or a third party.
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due to product improvements or other reasons. It is therefore recommended that customers contact ISAHAYA Electronics
Corporation or an authorized ISAHAYA products distributor for the latest product information before purchasing a product
listed herein.
・ISAHAYA Electronics Corporation products are not designed or manufactured for use in a device or system that is used
under circumstances in which human life is potentially at stake. Please contact ISAHAYA Electronics Corporation or an
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5
December. 2008