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OBD SERIES - DUAL OUTPUT, 25 WATT
DESCRIPTION
OBD dual output DC/DC converters provide up to 25
Watts of output power in an industry standard package
and footprint. These units feature excellent efficiency,
six-sided shielding, and fixed switching frequency. With
100°C case operation, the OBD units are especially suited
to telecom, networking, and industrial applications.
These units are 100% surface-mount construction and
fully compatible with production board washing
processes.
TECHNICAL SPECIFICA TIONS
Voltage Range
48 VDC Nominal 34 - 75 VDC
Reflected Ripple 25 mA
Input Reverse Voltage Protection Shunt Diode
Setpoint Accuracy ±1%
Line Regulation Vin Min. - Vin Max., I
Load Regulation I
Min. - I
out
out
Minimum Output Current 10 % I
Dynamic Regulation, Loadstep 25% I
Pk Deviation 4% V
Settling Time 500 µs
Voltage Trim Range ±10%
Short Circuit / Overcurrent Protection Hiccup
Current Limit Threshold Range, % of I
OVP Trip Range 115 - 140% V
OVP and UVP Type Second Control Loop
Turn-On Time: 24 & 48V Input 10 ms
Remote Shutdown Positive
Remote Shutdown Reference Vin Negative
Switching Frequency 400 kHz
Isolation
Input - Output 1500 VDC
Input - Case (12 V
and 24 Vin units) 1050 VDC
in
Output - Case (48 Vin units) 500 VDC
Temperature Coefficient 0.03%/°C
Case Temperature
Operating Range (12V Input Max. Temp +85°C) -40 to +100°C
Storage Range -40 to +125°C
Vibration, 3 Axes, 5 Min. Each 5 g, 10 - 55 Hz
MTBF† (Bellcore TR-NWT-000332) 1.9 x 106 hrs
Safety UL, CUL, TUV
Weight (Approx.) 1.4 oz
Input
Output
Rated 0.2% V
out
Max., Vin Nom. 0.5% V
Rated
out
Rated 110 - 140%
out
out
Nom.
General
out
out
out
out
FEA TURES
• Industry Standard
Package
• 48V Input
• Fixed-Frequency Design
• 100°C Case Operation
Efficiency vs. Load (24V Input)
90
85
80
75
EFFICIENCY %
70
65
10 20 30 40 50 60 70 80 90 100
Efficiency vs. Load (48V Input)
100
90
80
70
EFFICIENCY %
60
50
40
10 20 30 40 50 60 70 80 90 100
†
MTBF predictions may vary slightly from model to model.
††
Industrial temp range available
Specifications typically at 25°C, normal line, and full load, unless otherwise stated.
Soldering Conditions: I/O pins, 260°C, ten seconds; fully compatible with
commercial wave-soldering equipment.
Units are water-washable and fully compatible with commercial spray or immersion
post wave-solder washing equipment.
• Trim and Enable Pins
• Fixed Switching
Frequency
• 1500V Isolation
• 6-Sided Shielding
EFF. OBD25YJJ
EFF. OBD25YHH
LOAD %
EFF. OBD025ZJJ
EFF. OBD025ZGG
EFF. OBD025ZHH
LOAD %
Notes
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OBD SERIES - DUAL OUTPUT, 25 WATT
MODELS - (See the last page of this file for options.)
Vin
(Volts)
24
24
48
48
48
Vin Range
(Volts)
18 - 36
18 - 36
36 - 75
36 - 75
36 - 75
Iin Max.*
(Amps)
1.8
1.7
0.93
0.91
0.91
† Deno tes ad vanc e d p rod uc t rel e ase . Co n s ul t fac tory fo r pro duct av ailability.
* Maxi mum i np ut c urre nt at mi ni mum i np ut v o l tag e , maxi mum rate d outp ut p ower.
** A t nomi nal V in, rated o u tp u t.
MECHANICAL DRAWING
2.00"
(50.8mm)
0.600"(15.2mm)
0.400"(10.2mm)
0.200"(5.1mm)
1
BOTTOM VIEW
2
3
0
4
Vout
(Volts)
±5
±15
±5
±12
±15
5
6
7
8
Iout Rated
(Amps)
±2.5
±0.85
±2.5
±1.0
±0.85
1.100"(27.9mm)
0.700"(17.8mm)
0.300"(7.6mm)
-0.100"(2.5mm)
2.00"
(50.8mm)
Ripple & No ise
Pk-Pk (mV)
75
150
75
120
150
DIA 0.040"
(1.0mm)
Efficiency
Typ. **
83%
88%
80%
86%
88%
0.18" MIN.
(4.6mm)
Model
OBD025YGG †
OBD025YJJ †
OBD025ZGG
OBD025ZHH
OBD025ZJJ †
-0.50"(-12.7mm)
Thermal Impedance
Natural convection 10.3 °C/W
100 LFM 7.7 °C/W
200 LFM 6.3 °C/W
300 LFM 5.1 °C/W
400 LFM 4.1 °C/W
Note:
Thermal impedance data is dependent on
many environmental factors. The exact
thermal performance should be validated for
specific application.
-0.10"
(-2.5mm)
0
Pin Function
1.800"
(45.7mm)
0.42"
(10.7mm)
Tolerances
Inches: (Millimeters)
1+V
2-V
3 No Conn.
in
in
4 Enable
5+V
6 Common
7-V
8 Trim
out
out
.XX ± 0.020 .X ± 0.5
.XXX ± 0.010 .XX ± 0.25
Pin:
± 0.002 ± 0.05
Case:
+ 0.04, - 0.00 + 1.0, - 0.0
(T olerances as listed unless otherwise specified.)
2

OPTIONS
When ordering equipment options, use the following suffix information. Select the option(s) that
you prefer and add them to the model number. Example ordering options are located below the
options table.
OPTION SUFFIX APPLICABLE SERIES REMARKS
Negative Logic N HAS, HBD, HBS, HES, LES, QBS,
Lucent Compatible Trim T HAS, HBD, HBS, HES, QBS, QES
Terminal Strip TS XWS, XWD, XWT
Trim 1 IAS, LES
Enable 2 IAD, IAS, LES, SMS
Trim and Enable 3 I AS, LES
Current Share 4 SMS
Headerless Y Encapsulated EWS, IWS, OWS
PIN LENGTH AND HEATSINK
OPTIONS
0.110” (2.8mm) Pin Length 8 All Units (Except SMS)
0.150” (3.8mm) Pin Length 9 All Units (Except SMS)
0.24” (6.1mm) Horizontal Heatsink 1H All Units (Except DIP, SIP, and SM
0.24” (6.1mm) Vertical Heatsink 1V All Units (Except DIP, SIP, and SM
0.45” (11.4mm) Horizontal
Heatsink
0.45” (11.4mm) Vertical Heatsink 2V All Units (Except DIP, SIP, and SM
0.95” (24.1mm) Horizontal
Heatsink
0.95” (24.1mm) Vertical Heatsink 3V All Units (Except DIP, SIP, and SM
2H All Units (Except DIP, SIP, and SM
3H All Units (Except DIP, SIP, and SM
QES, TES, TQD
Packages)
Packages)
Packages)
Packages)
Packages)
Packages)
TTL “Low” Turns Module ON
TTL “High” Turns Module OFF
Standard Pin Length is 0.180”
(4.6mm)
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Includes Thermal Pad
Example Options:HBS050ZG-ANT3V = HBS050ZG-A with negative logic, Lucent compatible trim, and
0.95” vertical heatsink.
LES015YJ-3N = LES015YJ with optional trim and enable, negative logic.
QBS066ZG-AT8 = QBS066ZG-A with Lucent compatible trim and 0.110” pin length.
NUCLEAR AND MEDICAL APPLICATIONS Power-One products are not authorized for use as critical components in life support systems,
equipment used in hazardous environments, or nuclear control systems without the express written consent of the President of Power-One, Inc.
TECHNICAL REVISIONS The appearance of products, including safety agency certifications pictured on labels, may change depending on the
date manufactured. Specifications are subject to change without notice.
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