ISOLATED DC/DC CONVERTERS
48 Vdc Input Nov. 29, 2010 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Series RoHS Compliant
0RLC-25T Features
Isolated
Rev.B
Output Over Voltage Shutdown Output Voltage Trim OCP/SCP Over Temperature Protection Remote On/Off Remote On/Off Logic (Optional)
High Efficiency High Power Density Fixed Frequency (230 KHz) Low Cost Input Under Voltage Lockout
Class 1, Category 2, Isolated DC/DC Converter (refer to IPC-9592)
Applications
Networking Computers and peripherals Telecommunications
Description
The 0RLC-25T series are isolated dc/dc converters that operate from a nominal 48 Vdc source. These units will provide up to 30 W of output power. These units are designed to be high efficient and very low cost. Features include remote on/off, over current protection, and under voltage lockout. These converters are provided in an industry standard package.
Part Selection
Output Voltage 3.3 Vdc 5.0 Vdc 12.0 Vdc 15.0 Vdc 24.0 Vdc Input Voltage 36 Vdc - 75 Vdc 36 Vdc - 75 Vdc 36 Vdc - 75 Vdc 36 Vdc - 75 Vdc 36 Vdc - 75 Vdc Max. Output Current 7A 5A 2.5 A 2.0 A 1.25 A Max. Output Power 23 W 25 W 30 W 30 W 30 W Typical Efficiency 88% 90% 90% 90% 89% Model Number Active High 0RLC-25T033 0RLC-25T050 0RLC-25T120 0RLC-25T150 0RLC-25T240 Model Number Active Low 0RLC-25T03L 0RLC-25T05L 0RLC-25T12L 0RLC-25T15L 0RLC-25T24L
Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Part Number Explanation 0 R LC – 25 T xx x
12 3 4 5 67 1---Through hole mount 2---RoHS 6, change “R” to “7” means RoHS 5 3---Series name 4---Series code 5---Input range (36-75V) 6---Output voltage 7---Enable, “0” or “3” mean active high, and “L” means active low
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
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ISOLATED DC/DC CONVERTERS
48 Vdc Input Nov. 29, 2010 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Min -0.3 -0.3 -40 -55 Typ Max 80 12 85 125 Unit V V C C Notes
Absolute Maximum Ratings
Parameter Input Voltage (continuous) Remote On/Off Ambient Temperature Storage Temperature
Note: Ratings used beyond the maximum ratings may cause a reliability degradation of the converter or may permanently damage the device.
Input Specifications
Parameter Input Voltage Input Current (full load) Input Current (no load) Remote Off Input Current Input Reflected Ripple Current (rms) Input Reflected Ripple Current (pk-pk) I t Inrush Current Transient Turn-on Voltage Threshold Turn-off Voltage Threshold
2
Min 36 31 30
Typ 25 3 10 40 0.1 34 33
Max 75 1.1 40 10 20 60 0.5 36 35
Unit V A mA mA mA mA As V V
2
Notes
With simulated source impedance of 10 uH, 5 Hz to 20 MHz. And use a 100 uF/ 100 V electrolytic capacitor with ESR=1 ohm max, at 200 kHz.
Note: All specifications are typical at 25 C unless otherwise stated.
Output Specifications
Parameter Output Voltage Set Point VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V Line Regulation VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V Load Regulation VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V ±2 ±4 ±9 ±10 ±15 ±5 ±8 ±18 ±20 ±30 mV mV mV mV mV ±1 ±2 ±5 ±8 ±10 ±3 ±5 ±10 ±15 ±20 mV mV mV mV mV 3.234 4.900 11.76 14.70 23.52 3.3 5.0 12.0 15.0 24.0 3.366 5.100 12.240 15.300 24.480 V V V V V Test condition: Vin=48 V, IO=50% load at the output. Min Typ Max Unit Notes
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
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ISOLATED DC/DC CONVERTERS
48 Vdc Input Nov. 29, 2010 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Min Typ Max Unit Notes
Output Specifications (continued)
Parameter Regulation Over Temperature (-40 C to +85 C) VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V Total Regulation VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V Ripple and Noise (pk-pk) VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V Ripple and Noise (rms) VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V Output Current Range VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V Output DC Current Limit VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V Short Circuit Surge Transient Turn on Time Overshoot at Turn on Output Capacitance VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V 0 0 0 0 0 3300 2200 330 330 330 uF 7.7 5.5 3.0 2.2 1.5 0.5 10 0 12.0 8.0 4.2 3.4 2.2 1 25 5 A A A A A As mS %
2
0 0 0 0 0
30 40 100 120 150 33 46 114 140 150 40 40 40 80 85 10 10 10 15 20 -
50 70 170 200 240 58 83 198 250 330 75 75 75 120 150 20 20 20 30 40 7.0 5.0 2.5 2.0 1.25
mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV mV A A A A A
Test condition of the output ripple and noise: 0-20 MHz BW, with a 1 µF ceramic capacitor and a 10 uF/35 V electrolytic capacitor at the output.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
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ISOLATED DC/DC CONVERTERS
48 Vdc Input Nov. 29, 2010 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Min VO= 12.0 V VO= 24.0 V Typ 75 150 75 150 100 150 100 150 150 150 150 150 100 200 100 200 150 300 150 300 Max 100 200 100 200 150 200 150 200 200 200 200 200 200 300 200 300 300 500 300 500 Unit mV uS mV uS mV uS mV uS mV uS mV uS mV uS mV uS mV uS mV uS Notes
Output Specifications (continued)
Parameter Transient Response 50% ~ 75% Max Load 25% ~ 50% Max Load 50% ~ 75% Max Load 25% ~ 50% Max Load 50% ~ 75% Max Load 25% ~ 50% Max Load 50% ~ 75% Max Load 25% ~ 50% Max Load 50% ~ 75% Max Load 25% ~ 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 Overshoot Settling Time Overshoot Settling Time VO= 3.3 V
VO= 5.0 V
Test condition of the transient response: di/dt=0.1 A/us, Vin=48 V, with a 220 uF/35 V electrolytic capacitor at the output.
VO= 15.0 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=12.0 V VO=15.0 V VO=24.0 V Switching Frequency I/O Isolation Voltage Isolation Capacitance Output Voltage Trim Range Over Temperature Protection Over Voltage Protection VO=3.3 V VO=5.0 V VO=12.0 V VO=15.0 V VO=24.0 V Weight MTBF Dimensions Inches (L × W × H) Millimeters (L × W × H) 2.0 x 1.0 x 0.438 50.8 x 25.4 x 11.14 85 87 87 87 86 200 1500 90 3.90 5.70 13.60 17.25 27.60 88 90 90 90 89 230 1500 110 20 2,602,427 260 110 5.0 7.0 14.2 22.5 36.0 % % % % % kHz V pF % C V V V V V g hours Test condition of Over Voltage Protection: Vin=48 V, Io=100% load at 25 C ambient. Measured at Vin=48 V, IO=Io, max Min Typ Max Unit Notes
Calculated Per Bell Core SR-332 (IO = 80% load; Vin=48 V; Vo=3.3 V, Ta = 25 C)
Note: All specifications are typical 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
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ISOLATED DC/DC CONVERTERS
48 Vdc Input Nov. 29, 2010 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Min -0.3 3.5 -0.3 3.5 0.3 Typ Max 0.8 12 0.8 12 0.75 Unit V V V V mA Notes The remote on/off pin open, Unit off The remote on/off pin open, Unit on
Remote On/Off
Parameter Signal Low (Unit On) Signal High (Unit Off) Signal Low (Unit Off) Signal High (Unit On) Current Sink Active Low Active High
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 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
Rtrim _ down
A B Vnom Vadj
Rtrim_down
Module
Trim
GND
Rtrim _ up
C D Vadj Vnom
Vout
Module Trim
Rtrim_up
GND
Vnom
24.0 15.0 12.0 5.0 3.3
A
272.305 92.125 53.320 19.300 21.711
B
15.664 9.360 9.260 15.120 40.610
C
31.634 18.400 14.025 6.350 13.032
D
3.010 2.000 3.650 10.000 30.100
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
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ISOLATED DC/DC CONVERTERS
48 Vdc Input Nov. 29, 2010 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Efficiency Data
95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 0.5A 1.25A 2.5A 3.75A 5A OUTPUT CURRENT (A)
90% 85%
EFFICIENCY
EFFICIENCY
80% 75% 70% 65% 60% 55% 50% 0.7A 1.75A 3.5A 5.25A 7A 36V 48V 75V
36 48 75
OUTPUT CURRENT (A)
0RLC-25T033
0RLC-25T050
95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 0.25A 0.625A 1.25A 1.875A 2.5A OUTPUT CURRENT (A)
36 48 75
95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 0.2A 0.5A 1.0A 1.5A 2.0A OUTPUT CURRENT (A)
EFFICIENCY
0RLC-25T120
EFFICIENCY
36 48 75
0RLC-25T150
95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 0.125A 0.3215A 0.625A 0.9375A 1.25A OUTPUT CURRENT (A)
EFFICIENCY
36 48 75
0RLC-25T240
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
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ISOLATED DC/DC CONVERTERS
48 Vdc Input Nov. 29, 2010 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Thermal Derating Curves
0RLC-25T033
0RLC-25T050
0RLC-25T120
0RLC-25T150
0RLC-25T240
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
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ISOLATED DC/DC CONVERTERS
48 Vdc Input Nov. 29, 2010 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Ripple and Noise Waveforms
Ripple and noise at full load, 3.3 Vdc/7 A output
Ripple and noise at full load, 5.0 Vdc/5 A output
Ripple and noise at full load, 12 Vdc/2.5 A output
Ripple and noise at full load, 15 Vdc/2 A output
Ripple and noise at full load, 24 Vdc/1.25 A output Note: Ripple and noise at 48 Vdc input, with a 0.47 uF ceramic cap 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
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ISOLATED DC/DC CONVERTERS
48 Vdc Input Nov. 29, 2010 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Transient Response Waveforms
Transients 25% to 50% load 3.3 Vdc output
Transients 50% to 75% load 3.3 Vdc output
Transients 25% to 50% load 5.0 Vdc output
Transients 50% to 75% load 5.0 Vdc output
Transients 25% to 50% load 12 Vdc output
Transients 50% to 75% load 12 Vdc output
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
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ISOLATED DC/DC CONVERTERS
48 Vdc Input Nov. 29, 2010 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Transient Response Waveforms (continued)
Transients 25% to 50% load 15 Vdc output
Transients 50% to 75% load 15 Vdc output
Transients 25% to 50% load 24 Vdc output
Transients 50% to 75% load 24 Vdc output
Note: Transient response at 48 Vdc input, di/dt=0.1 A/uS, with external 220 uF electrolytic cap and 0.47 uF ceramic cap 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
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ISOLATED DC/DC CONVERTERS
48 Vdc Input Nov. 29, 2010 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output
Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.
Mechanical Outline
Pin Connections
Pin 1 2 3 4 5 6 Function Vin+ VinCNT Vo+ VoTrim
Note: This module is recommended and compatible with Pb-Free Wave Soldering and must be soldered using a peak solder temperature of no more than 260 ºC for less than 5 seconds. Note: 1) All Pins: Material - Copper Alloy; Finish – 3 micro inches minimum Gold over 50 micro inches minimum Nickel plate. 2) Undimensioned components are shown for visual reference only. 3) All dimensions in inches (mm); Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm) x.xxx +/-0.010 in. (x.xx +/-0.25mm).
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
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ISOLATED DC/DC CONVERTERS
48 Vdc Input 3.3 Vdc - 24 Vdc/7 A - 1.25 A Output OutputConverter Nov. 29, 2010 Bel Power,
Inc. , a subsidiary of Bel Fuse, Inc.
Revision History
Date 2007-03-02 2010-11-29
Revision A B First Release.
Changes Detail
Approval XF Jiang XF Jiang
Update the notes in Remote On/Off.
.
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products.
2010 Bel Fuse Inc. Specifications subject to change without notice. 112910
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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