Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
ISOLATED DC/DC CONVERTERS
24 V Input
22.5 V/28 mA or 27 V/25 mA Dual Outputs
Isolated
High
Efficiency
Excellent Thermal Performance
Low
Cost
Low Profile Package
Dual
Outputs
Description
The V7XZ-01RD series are isolated dc/dc converters that operate from a nominal 24 V source. These
converters provide up to 1.3 W of output power, using a SIP package for ease of layout and space savings. The
efficiency is typically 82% at full load.
Note: All specifications are typical at nominal input, full load at 25
C
unless otherwise stated.
Part Selection
Output
Voltage
Input Voltage
Max. Output
Current
Max. Output
Power
Typical
Efficiency
Model Number
22.5 V (dual)
24 V
28 mA
1.3 W
82%
V7XZ-01RD10
27 V (dual)
24 V
25 mA
1.3 W
82%
V7XZ-01RD20
Note: Add "G" suffix at the end of the model number to indicate "Tray Packaging".
Absolute Maximum Ratings
Parameter
Min
Typ
Max
Notes
Input Voltage (continuous)
-0.3 V
-
28 V
Output Power
-
-
1.3 W
Ambient Temperature
0
C
-
70
C
Storage Temperature
-40
C
-
125
C
Input Specifications
Parameter
Min
Typ
Max
Notes
Input Voltage
24 V
-
28 V
Input Current (no load)
-
-
15 mA
Input Current (full load)
-
-
70 mA
V7XZ-01RD Series
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
ISOLATED DC/DC CONVERTERS
24 V Input
22.5 V/28 mA or 27 V/25 mA Dual Outputs
Output Specifications
Parameter
Min
Typ
Max
Notes
Output Voltage Set Point
V
O
=22.5 V
V
O
=27 V
22.5 V
26 V
-
-
24 V
27 V
Vin=24 V, Iout=full load, Ta=25
C
V
O
=22.5 V
-
0.7 V
1 V
Vin=24 V, Iout=6 mA ~ 28 mA
Load Regulation
V
O
=27 V
-
0.7 V
1 V
Vin=24 V, Iout=4 mA ~ 25 mA
Regulation Over Temperature
(0
C to 70
C)
-
0.2 V
0.5 V
For both outputs
Output Current
V
O
=22.5 V
V
O
=27 V
0 mA
0 mA
-
-
28 mA
25 mA
Ripple and Noise (rms)
-
14 mV
25 mV
Ripple and Noise (pk-pk)
-
55 mV
120 mV
0 20 MHz Bandwidth with 0.1 uF
ceramic capacitor at output
Overshoot at Turn on
-
0%
3%
General Specifications
Parameter
Min
Typ
Max
Notes
Efficiency
V
O
=22.5 V
V
O
=27 V
80%
80%
82%
82%
-
-
Vin=24 V, I
O
= I
O-
max, at full load and
Ta=25
C
Switching Frequency
-
190 kHz
-
Isolation -
-
2000
V
MTBF
3,000,000 hours
Calculated Per Bell Core TR-332 (I
O
=
Nominal; T
a
= 25
C)
Dimensions
Inches (L
W
H)
Millimeters (L
W
H)
0.9 x 0.338 x 0.4
22.86 x 8.59 x 10.16
Weight -
2.5
g
-
Thermal Derating Curve
2005 Bel Fuse Inc. Specifications subject to change without notice. 040805
CORPORATE FAR
EAST
EUROPE
Bel Fuse Inc.
Bel Fuse Ltd.
Bel Fuse Europe Ltd.
206 Van Vorst Street
8F/ 8 Luk Hop Street
Preston Technology Management Centre
Jersey City, NJ 07302
San Po Kong
Marsh Lane, Suite G7, Preston
Tel 201-432-0463
Kowloon, Hong Kong
Lancashire, PR1 8UD, U.K.
Fax 201-432-9542
Tel 852-2328-5515
Tel 44-1772-556601
www.belfuse.com
Fax 852-2352-3706
Fax 44-1772-888366
www.belfuse.com
www.belfuse.com
ISOLATED DC/DC CONVERTERS
24 V Input
22.5 V/28 mA or 27 V/25 mA Dual Outputs
Pin Connections
Pin
Function
1 Vin+
2 Vin-
3 Vo1-
4 Vo
1
+
5 Vo2-
6 Vo2+
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