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ISOLATED DC/DC CONVERTERS
48 Vdc Input, 3.3 Vdc/2 A, 5 Vdc/2 A, 12 Vdc/1 A, 24 Vdc/0.5 A Output
0RLC-10TXXX Series
* * * * * *
RoHS Compliant
* * * * *
Rev.A
Isolated Fixed Frequency High Power Density High Efficiency Output Over-Voltage Shutdown Safety Approval to UL60950-1 (Pending)
Low Cost Trim OCP/SCP Remote On/Off Active Low/High (Option)
Description
The 0RLC-10T Series are isolated dc/dc converters that operate from a nominal 48 Vdc source. These units will provide up to 12 W of output power from a nominal 48 Vdc input. These units are designed to be highly efficient and very low cost. Features include remote on/off, over current protection and short circuit protection. These converters are provided in an industry standard package.
Part Selection
Output Voltage 3.3 Vdc 5.0 Vdc 12 Vdc 24 Vdc Input Voltage 36 Vdc - 75 Vdc 36 Vdc - 75 Vdc 36 Vdc - 75 Vdc 36 Vdc - 75 Vdc Max. Output Current 2A 2A 1A 0.5 A Max. Output Power 6.6 W 10 W 12 W 12 W Typical Efficiency 77% 82% 83% 85% Model Number Active High 0RLC-10T033 0RLC-10T050 0RLC-10T120 0RLC-10T240 Model Number Active Low 0RLC-10T03L 0RLC-10T05L 0RLC-10T12L 0RLC-10T24L
Notes: 1. Add "G" suffix at the end of the model number to indicate Tray Packaging. 2. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.
Absolute Maximum Ratings
Parameter Continuous Input Voltage Peak/Surge Input Voltage Remote On/Off (Active Low) Remote On/Off (Active High) Ambient Temperature Storage Temperature Min -0.3 V -0.3 V -0.3 V -0.3 V 0 C -40 C Typ Max 75 V 100 V 18 V 7V 70 C 125 C Notes Transients of 100 ms or less in duration
Input Specifications
Parameter Input Voltage Input Current (no load) Input Current (full load) Remote Off Input Current (Active Low) Remote Off Input Current (Active High) Input Reflected Ripple Current (pk-pk) Input Reflected Ripple Current (rms) I t Inrush Current Transient Turn-on Voltage Threshold
2
Min 36 V -
Typ 5 mA 15 mA 5 mA 0.039 A s 30 V
2
Max 75 V 40 mA 0.45 A 10 mA 10 mA 30 mA 10 mA 0.062 A s 2
Notes
With simulated source impedance of 10 uH, 5 Hz to 20 MHz; use a 47uF/100 V electrolytic capacitor with ESR = 1 ohm max. at 200 kHz at 25 C.
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
48 Vdc Input, 3.3 Vdc/2 A, 5 Vdc/2 A, 12 Vdc/1 A, 24 Vdc/0.5 A Output
Output Specifications
Parameter Output Voltage Set Point VO=3.3 V VO=5.0 V VO=12 V VO=24 V Line Regulation VO=3.3 V VO=5.0 V VO=12 V VO=24 V Load Regulation VO=3.3 V VO=5.0 V VO=12 V VO=24 V Regulation Over Temperature (0 C to 70 C) Output Current VO=3.3 V VO=5.0 V VO=12 V VO=24 V Current Limit Threshold VO=3.3 V VO=5.0 V VO=12 V VO=24 V Short Circuit Surge Transient Ripple and Noise (rms) VO=3.3 V VO=5.0 V VO=12 V VO=24 V Ripple and Noise (pk-pk) VO=3.3 V VO=5.0 V VO=12 V VO=24 V Turn on Time Power On Remote On Overshoot at Turn on Output Capacitance VO=3.3 V VO=5.0 V VO=12 V VO=24 V 0.5 mS 0 uF 0 uF 0 uF 0 uF 0% 200 mS 40 mS 3% 800 uF 800 uF 100 uF 20 uF 40 mV 60 mV 80 mV 120 mV 60 mV 100 mV 120 mV 180 mV 10 mV 18 mV 21 mV 45 mV 15 mV 30 mV 40 mV 70 mV 0 - 20 MHz BW , with 1 uF ceramic load capacitance 3.0 A 3.0 A 1.5 A 0.75 A TBD As
2
Min 3.201 V 4.850 V 11.64 V 23.28 V 0.2 A 0.2 A 0.1 A 0.05 A
Typ 3.30 V 5.00 V 12.00 V 24.00 V 5 mV 10 mV 20 mV 35 mV 10 mV 15 mV 36 mV 48 mV 75 mV -
Max 3.399 V 5.150 V 12.36 V 24.72 V 10 mV 15 mV 36 mV 48 mV 15 mV 25 mV 60 mV 80 mV 150mV 2.0 A 2.0 A 1.0 A 0.5 A
Notes
Vin=48 V for all outputs
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
48 Vdc Input, 3.3 Vdc/2 A, 5 Vdc/2 A, 12 Vdc/1 A, 24 Vdc/0.5 A Output
Output Specifications (continued)
Parameter Transient Response 50% ~ 100% Max Load 100% ~ 50% Max Load 50% ~ 100% Max Load 100% ~ 50% Max Load 50% ~ 100% Max Load 100% ~ 50% Max Load 50% ~ 100% Max Load 100% ~ 50% Max Load Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time 100 mV 200 uS 100 mV 200 uS 100 mV 100 uS 100 mV 100 uS 150 mV 150 uS 150 mV 150 uS 350 mV 200 uS 350 mV 200 uS 150 mV 300 uS 150 mV 300 uS 150 mV 150 uS 150 mV 150 uS 250 mV 200 uS 250 mV 200 uS 500 mV 250 uS 500 mV 250 uS Min Typ Max Notes
VO=3.3 V
VO=5.0 V
di/dt = 0.1 A/uS; Vin = 48 V; Ta = 25 C and 1 uF ceramic capacitor
VO=12 V
VO=24 V
Note: All specifications are typical at nominal input, full load at 25 C unless otherwise stated.
General Specifications
Parameter Efficiency VO=3.3 V VO=5.0 V VO=12 V VO=24 V Switching Frequency Output Trim Range MTBF Dimensions Inches (L x W x H) Millimeters (L x W x H) Weight 1.91 x 0.98 x 0.477 48.51 x 24.89 x 12.12 10.3 g 73% 78% 79% 81% 200 kHz 95%VO 77% 82% 83% 85% 250 kHz TBD 300 kHz 105%VO Vin=48 V, IO= IOmax Min Typ Max Notes
For all outputs Calculated Per Bell Core SR-332 (IO = Nomal; Ta = 25 C)
-
Note: All specifications are typical at 25 C unless otherwise stated.
Control Specifications
Parameter Remote On/Off Signal Low (Unit On) Signal High (Unit Off) Signal Low (Unit Off) Signal High (Unit On) Active Low Active High -0.3 V 3.5 V -0.3 V 3.5 V 0.8 V 18 V 0.8 V 7V The remote on/off pin open, Unit On. Min Typ Max Notes
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
48 Vdc Input, 3.3 Vdc/2 A, 5 Vdc/2 A, 12 Vdc/1 A, 24 Vdc/0.5 A Output
Output Trim Equations
Equations for calculating the trim resistor (in k) 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 Vout. The Trim Up resistor should be connected between the Trim pin and Ground. Only one of the resistors should be used for any given application.
Vout Trim GND
RTrimDown
A = -B Vnom - Vadj
Rtrimdown Module
RTrimUp =
Vadj
C -D - Vnom
A
489.490 113.550 56.410 21.628
Vout Module Trim Rtrimup GND
Vnom
24 12 5.0 3.3
B
28.310 16.990 51.200 75.400
C
26.660 13.020 18.228 13.020
D
6.810 6.490 36.500 64.900
Efficiency Data
90.0% 85.0% EFFICIENCY 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% 0.20 0.50 1.00 1.50 OUTPUT CURRENT(A) 2.00
36V 48V 75V
90.00% 85.00% 80.00% 75.00% 70.00% 65.00% 60.00% 55.00% 50.00%
36V 48V 75V
EFFICIENCY
0.00
0.50 1.00 1.50 OUTPUT CURRENT (A)
2.00
0RLC-10T033
90.00% 85.00% 80.00% 75.00% 70.00% 65.00% 60.00% 55.00% 50.00% 0.00
90.00% 85.00% EFFICIENCY
36V 48V 75V
0RLC-10T050
EFFICIENCY
80.00% 75.00% 70.00% 65.00% 60.00% 55.00% 50.00%
36V 48V 75V
0.20 0.40 0.60 0.80 OUTPUT CURRENT (A)
1.00
0.05
0.13 0.25 0.38 OUTPUT CURRENT (A)
0.50
0RLC-10T120
0RLC-10T240
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
48 Vdc Input, 3.3 Vdc/2 A, 5 Vdc/2 A, 12 Vdc/1 A, 24 Vdc/0.5 A Output
Thermal Derating Curves
Vo=3.3 V, Io=2 A
Vo=5 V, Io=2 A
Vo=12 V, Io=1 A
Vo=24 V, Io=0.5 A
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
48 Vdc Input, 3.3 Vdc/2 A, 5 Vdc/2 A, 12 Vdc/1 A, 24 Vdc/0.5 A Output
Ripple and Noise Waveforms
Vo=3.3 V
Vo=5.0 V
Vo=12 V
Vo=24 V
Note: Ripple and noise at full load, 48 Vdc input, with a 1 uF ceramic capacitor at the output, and 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
48 Vdc Input, 3.3 Vdc/2 A, 5 Vdc/2 A, 12 Vdc/1 A, 24 Vdc/0.5 A Output
Transient Response Waveforms
Vout=3.3 V 50% to 100% Load Transients
Vout=3.3 V 100% to 50% Load Transients
Vout=5.0 V 50% to 100% Load Transients
Vout=5.0 V 100% to 50% Load Transients
Vout=12 V 50% to 100% Load Transients
Vout=12 V 100% to 50% Load Transients
Vout=24 V 50% to 100% Load Transients
Vout=24 V 100% to 50% Load Transients
Note: Transient response at Vin=48 V, di/dt=0.1 A/uS, with external 1 uF ceramic capacitor, and 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
48 Vdc Input, 3.3 Vdc/2 A, 5 Vdc/2 A, 12 Vdc/1 A, 24 Vdc/0.5 A Output
Mechanical Outline
Pin Connections
Pin 1 2 3 4 5 6 Function Vin+ VinEnable Vo+ Trim Vo-
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products.
(c)2007 Bel Fuse Inc. Specifications subject to change without notice. 030207
CORPORATE Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
FAR EAST 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
EUROPE 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

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