BEL 0RXU

ISOLATED DC/DC CONVERTERS
36 Vdc - 75 Vdc Input
+12 Vdc/5 A, -12 Vdc/1.5 A Dual Outputs
0RXU-75TD10
RoHS Compliant
Rev.A
•
Isolated
•
Low Cost
•
Fixed Frequency (300 kHz)
•
SCP/OCP
•
High Efficiency
•
Remote On/Off
•
High Power Density
•
Output Voltage Trim
•
Input Under- Voltage Lockout
(UVLO)
•
Output Over-Voltage
Protection (OVP)
•
UL60950-1 Recognized
(UL/cUL) and CE Mark
•
Over Temperature Protection
Description
The 0RXU-75TD10 is an isolated dc/dc converter that operates from a nominal 48 Vdc source. It provides up to
78 W of output power with two output voltages. Features include remote on/off, output adjust, short circuit
protection, over current protection, over-temperature shutdown, output over voltage protection, and input under
voltage lockout. This converter is provided in a compact, though-hole package that is easy to use and provides
good thermal performance.
Part Selection
Output Voltage
Input Voltage
+12 Vdc/-12 Vdc
36 Vdc - 75 Vdc
Max. Output
Current
5 A/1.5 A
Max. Output
Power
78 W
Typical
Efficiency
90%
Model Number
0RXU-75TD10
Notes: 1. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.
2. Add “G” suffix at the end of the model numbers listed above to indicate “Tray Packaging”.
Absolute Maximum Ratings
Parameter
Input Voltage
Min
-0.3 V
Typ
-
Max
100 V
Remote On/Off
Ambient Temperature
Storage Temperature
Notes
100 V for 10 mS Max.
-0.3 V
-
30 V
-40 °C
-
85 °C
-40 °C
-
125 °C
Input Specifications
Parameter
Input Voltage
Min
36 V
Typ
-
Max
75 V
Input Current (no load)
-
-
200 mA
Input Current (full load)
-
-
3A
Remote Off Input Current
-
10 mA
20 mA
Input Reflected Ripple Current
(rms)
-
10 mA
30 mA
Input Reflected Ripple Current
(pk-pk)
-
50 mA
100 mA
Turn On Voltage Threshold
32 V
34 V
35 V
Turn Off Voltage Threshold
30 V
31 V
33 V
Notes
With simulated source impedance of 10
uH, 5 Hz to 20 MHz; use a 100 uF/100 V
electrolytic capacitor with ESR=1 ohm max
at 200k Hz
Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.
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
36 Vdc - 75 Vdc Input
+12 Vdc/5 A, -12 Vdc/1.5 A Dual Outputs
Output Specifications
Parameter
Output Voltage Set Point
Min
Typ
Max
Notes
VO1=+12 V
VO2=-12 V
+11.76 V
-11.86 V
+12 V
-12.1 V
+12.24 V
-12.34 V
VO1=+12 V
VO2=-12 V
-
-
2% VO
4% VO
ΔIo1=50% Imax1; Io2=50% Imax2
ΔIo2=50% Imax2; Io1=50% Imax1
VO1=+12 V
VO2=-12 V
-
-
1% VO
1% VO
Io1=50% Imax1; Io2=50% Imax2
-
-
0.02% /°C
VO1=+12 V
VO2=-12 V
0.06 A
0.06 A
-
5A
1.5 A
VO1=+12 V
VO2=-12 V
6A
1.8 A
-
7.5 A
2.25 A
Hiccup Mode
-
-
-
Hiccup Mode
-
10 mS
7 mS
20 mS
20 mS
-
-
5%
VO1=+12 V
VO2=-12 V
-
25 mV
10 mV
50 mV
50 mV
VO1=+12 V
VO2=-12 V
-
75 mV
40 mV
150 mV
150 mV
0 uF
-
1,000 uF
Vin=48 V, lo=50% load
Load Regulation
Line Regulation
Regulation Over Temperature
(-40 °C to +85 °C)
Output Current
Output Current Limit
Short Circuit Protection
Startup Time
Power Up
Remote On/Off
Overshoot at Turn On
Ripple and Noise (rms)
Test conditions:
0-20 MHz Bandwidth, with a 1 uF
ceramic capacitor at the output.
Ripple and Noise (pk-pk)
Output Capacitance
For both VO1 and VO2
Transient Response
50% ~ 75%
Max Load
-
Overshoot
-
Settling Time
VO1=+12 V
75% ~ 50%
Max Load
50% ~ 75%
Max Load
Overshoot
-
Settling Time
-
Overshoot
-
Settling Time
VO2=-12 V
75% ~ 50%
Max Load
Overshoot
Settling Time
-
-
300 mV
600 mV
150 uS
300 uS
300 mV
600 mV
150 uS
300 uS
300 mV
600 mV
150 uS
300 uS
300 mV
600 mV
150 uS
300 uS
Test conditions:
di/dt=0.5 A/us, Vin=48 V
Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.
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
36 Vdc - 75 Vdc Input
+12 Vdc/5 A, -12 Vdc/1.5 A Dual Outputs
General Specifications
Parameter
Min
84%
Typ
90%
Max
-
Switching Frequency
270k Hz
300k Hz
330k Hz
I/O Isolation Voltage
-
1500 V
-
Isolation Capacitance
-
1500 pF
-
90%
-
110%
+13.5 V
-13.5 V
-
+15 V
-15 V
130 °C
+17 V
-17 V
-
Efficiency
Output Trim Range
Output Over Voltage Protection
VO1=+12 V
VO2=-12 V
Over-temperature
MTBF
Notes
Vin = 48 V; Full Load
Hiccup Mode
Hiccup Mode
Calculated Per Bell Core SR-332 (IO =
80% Imax; TA = 25 °C)
2,366,749 hours
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
Weight
2.28 x 2.4 x 0.48
57.9 x 61.0 x 12.09
45 g
-
-
Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated.
Control Specifications
Parameter
Remote On/Off
Min
Typ
Max
Signal Low (Unit On)
-0.3 V
-
1.8 V
Signal High (Unit Off)
3.5 V
-
12 V
Notes
Active Low; Remote On/Off pin open, Unit off.
Output Trim Equations
Equations for calculating the trim resistor (in kΩ) given the desired adjusted voltage (Vadj) and the nominal output
voltage of the converter (Vnom) are shown below. The Trim Down resistor should be connected between the Trim
pin and Vo1. The Trim Up resistor should be connected between the Trim pin and COM. Only one of the resistors
should be used for any given application.
Rtrim _ down =
99.86
− 20.5
Vnom − Vadj
Vout1
Rtrim_down
Module
Trim
COM
Rtrim _ up =
26.25
− 10
Vadj − Vnom
Vout1
Module Trim
Rtrim_up
Note: Output voltage Vo=12.012 V
COM
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
36 Vdc - 75 Vdc Input
+12 Vdc/5 A, -12 Vdc/1.5 A Dual Outputs
Efficiency Data
0RXU-75TD10 module
0.950
Efficiency
0.900
0.850
Vin=36V
0.800
Vin=48V
0.750
Vin=75V
0.700
0.650
0.600
10%load
25%load
50%load
75%load
100%load
Output Current
Thermal Derating Curve (Vin=48 V)
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
36 Vdc - 75 Vdc Input
+12 Vdc/5 A, -12 Vdc/1.5 A Dual Outputs
Ripple and Noise Waveforms
Ripple and noise at full load, 36 V input, ch1 (+)12 V/5 A output, (-)12 V/1.5 A
Ripple and noise at full load, 48 V input, ch1 (+)12 V/5 A output, (-)12 V/1.5 A
Ripple and noise at full load, 75 V input, ch1 (+)12 V/5 A output, (-)12 V/1.5 A
Note: With a 1uF ceramic capacitor at the output, Ta=25 deg C.
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
36 Vdc - 75 Vdc Input
+12 Vdc/5 A, -12 Vdc/1.5 A Dual Outputs
Transient Response Waveforms
Vout=(+)12 V 50%-75% Load Transients at Vin=36 V
Vout=(+12) V 75%-50% Load Transients at Vin=36 V
Vout=(-)12 V 50% - 75% Load Transients at Vin=36 V
Vout=(-)12 V 75% -50% Load Transients at Vin=36 V
Vout=(+)12 V 50%-75% Load Transients at Vin=48 V
Vout=(+12) V 75%-50% Load Transients at Vin=48 V
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
36 Vdc - 75 Vdc Input
+12 Vdc/5 A, -12 Vdc/1.5 A Dual Outputs
Transient Response Waveforms (continued)
Vout=(-)12 V 50% - 75% Load Transients at Vin=48 V
Vout=(-)12 V 75% -50% Load Transients at Vin=48 V
Vout=(+)12 V 50%-75% Load Transients at Vin=75 V
Vout=(+12) V 75%-50% Load Transients at Vin=75 V
Vout=(-)12 V 50% - 75% Load Transients at Vin=75 V
Vout=(-)12 V 75% -50% Load Transients at Vin=75 V
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
36 Vdc - 75 Vdc Input
+12 Vdc/5 A, -12 Vdc/1.5 A Dual Outputs
Mechanical Outline
Pin Connections
Pin
Function
Pin
Function
1
-Vin
6
COM
2
FG
7
Trim
3
REM
8
COM
4
+Vin
9
-Vo1 (-12 V)
5
+Vo1 (+12 V)
10
No Connection
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and
other hazardous substances from electronic products.
©2007 Bel Fuse Inc. Specifications subject to change without notice. 030107
CORPORATE
FAR EAST
EUROPE
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
Bel Fuse Ltd.
8F/ 8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel 852-2328-5515
Fax 852-2352-3706
www.belfuse.com
Bel Fuse Europe Ltd.
Preston Technology Management Centre
Marsh Lane, Suite G7, Preston
Lancashire, PR1 8UD, U.K.
Tel 44-1772-556601
Fax 44-1772-888366
www.belfuse.com