ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
RoHS Compliant Rev.C
0RQB-C5T Series Features
Isolated High Efficiency High Power Density Low Cost Input Under Voltage Lockout Fixed Frequency (330 kHz) Active Low/High (Option)
Output Over Voltage Shutdown OCP/SCP Over Temperature Protection Remote On/Off Output Voltage Trim Positive/Negative Remote Sense Input Over Voltage Lockout Basic Isolation
UL60950-1 Recognized (UL/cUL)
Applications
Networking Computers and peripherals Telecommunications
Description
The 0RQB-C5T Series are isolated dc/dc converters that operate from a nominal 48 Vdc source. These units will provide up to 150 W of output power from a nominal 48 Vdc input. These units are designed to be highly efficient and low cost. Typical efficiency of 12 Vdc output at 48 Vdc input at full load is 93%. Features include remote on/off, over current protection and under-voltage lockout. These converters are provided in an industry standard quarter brick package.
Part Selection
Output Voltage 12 V 5.0 V 3.3 V 2.5 V 1.8 V 1.5 V 1.2 V Input Voltage 36 V - 75 V 36 V - 75 V 36 V - 75 V 36 V - 75 V 36 V - 75 V 36 V - 75 V 36 V - 75 V Max. Output Current 12 A 30 A 46 A 50 A 50 A 50 A 50 A Max. Output Power 144 W 150 W 152 W 125 W 90 W 75 W 60 W Typical Efficiency 93.0% 92.5% 91.0% 90.5% 88.0% 85.0% 83.0% Model Number Active High 0RQB-C5T120 0RQB-C5T050 0RQB-C5T033 0RQB-C5T025 0RQB-C5TV80 0RQB-C5TV50 0RQB-C5TV20 Model Number Active Low 0RQB-C5T12L 0RQB-C5T05L 0RQB-C5T03L 0RQB-C5T02L 0RQB-C5TV8L 0RQB-C5TV5L 0RQB-C5TV2L
Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
1
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Part Number Explanation 0 R QB – C5 T xx x
12 3 4 5 67 1---Through hole 2---RoHS 6, change “R” to “7” means RoHS 5 3---Series name, 1/4 Brick 4---Series code 5---Input range 48V wide (36-75V) 6---Output voltage 7---Option, “x” of the model part number to be 0-9, A-Z, which will represent the special request of customer.
Absolute Maximum Ratings
Parameter Input Voltage (continuous) Remote On/Off I/O Isolation Voltage Ambient Temperature Storage Temperature Min -0.3 -0.3 -40 -55 Typ Max 80 18 2000 85 125 Unit V V V C C Notes
Note: All specifications are typical at nominal input, full load at 25 C unless noted.
Input Specifications
Parameter Input Voltage Input Current (full load) VO=12 V VO=5.0 V VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V Input Current (no load) Remote Off Input Current Input Reflected Ripple Current (pk-pk) Input Reflected Ripple Current (rms) I t Inrush Current Transient Turn-on Voltage Threshold Turn-off Voltage Threshold Input over voltage Lockout
2
Min 36 -
Typ 48 120 10
Max 75 4.5 4.9 4.9 4.1 3.0 2.6 2.1 180 15 15 3 0.1 35 34 80
Unit V A A A A A A A mA mA mA mA As V V V
2
Notes
32 30 76
10 1.5 0.05 34 32 78
Tested 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 200 kHz at 25 C.
Note: All specifications are typical at nominal input, full load at 25 C unless noted.
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 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Parameter Min VO=12 V VO=5.0 V VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V 11.790 4.925 3.260 2.450 1.770 1.477 1.176 -3.5 Typ 12.030 5.004 3.308 2.503 1.808 1.500 1.200 8 5 3 10 5 2 60 40 30 20 15 15.5 40 60 60 3 25 20 20 15 70 60 50 45 40 55 40 0 Max 12.270 5.075 3.360 2.550 1.844 1.523 1.224 3.5 15 15 6 20 10 5 100 65 50 40 30 12 30 46 50 18 45 65 65 5 30 25 20 20 90 80 70 60 60 70 60 100 5 Unit V V V V V V V %Vo,set Notes
Output Specifications
Output Voltage Set Point
Vin=48V, Io=50% load
Output Voltage Set Point Line Regulation VO=12 V VO=5.0 V VO=1.2 V-3.3 V Load Regulation VO=5.0 V-12 V VO=2.5 V-3.3 V VO=1.2 V-1.8 V Regulation Over Temperature (-40 C to +85 C) VO=12 V VO=5.0 V VO=3.3 V VO=2.5 V VO=1.8 V-1.2 V Output Current Vo=12 V Vo=5.0 V Vo=3.3 V Vo=1.2 V-2.5 V Current Limit Threshold VO=12 V VO=5.0 V VO=3.3 V VO=1.2 V-2.5 V Short Circuit Surge Transient Ripple and Noise (rms) VO=12 V VO=5.0 V VO=3.3 V VO=1.2 V-2.5 V Ripple and Noise (pk-pk) VO=12 V VO=5.0 V VO=3.3 V VO=1.8 V Vo=2.5 V VO=1.5 V VO=1.2 V Turn on Time Overshoot at Turn on
Over all operating input voltage, resistive load, and temperature conditions.
0 0 0 0 14 35 50 55 10 -
mV mV mV mV mV mV mV mV mV mV mV A A A A A A A A As mV mV mV mV mV mV mV mV mV mV mV mS %
2
Test conditions: 0-20 MHz BW, with a 1 uF ceramic capacitor and a 10 uF Tantalum 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 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Min 0 0 0 VO=12.0 V VO=5.0 V VO=3.3 V VO=2.5 V Vo=1.8 V VO=1.5 V VO=1.2 V Typ 600 200 600 200 250 100 250 100 100 200 100 200 100 300 100 300 100 200 100 200 100 200 100 200 Max 2200 10000 20000 800 300 800 300 375 200 375 200 200 300 200 300 200 400 200 400 140 300 140 300 120 300 120 300 Unit uF uF uF mV uS mV uS mV uS mV uS mV uS mV uS mV uS mV uS mV uS mV uS mV uS mV uS Test conditions: di/dt = 0.1 A/uS, Vin=48 V, with a 1 uF ceramic capacitor and a 10 uF Tantalum capacitor at the output. Notes
Output Specifications (continued)
Parameter Output Capacitance VO=12.0 V VO=5.0 V VO=1.2 V-3.3 V Transient Response 50% ~ 75% Max Load 75% ~ 50% Max Load 50% ~ 75% Max Load 75% ~ 50% Max Load 50% ~ 75% Max Load 75% ~ 50% Max Load 50% ~ 75% Max Load 75% ~ 50% Max Load 50% ~ 75% Max Load 75% ~ 50% Max Load 50% ~ 75% Max Load 75% ~ 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 Overshoot Settling Time Overshoot Settling Time
Note: All specifications are typical at nominal input, full load at 25 C unless noted.
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 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Min VO=12 V VO=5.0 V VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V 90 89 88 87 85 82 80 280 80 Typ 93 92.5 91 90.5 88 85 83 330 1500 125 130 1,109,917 Max 380 2000 10 110 Unit % % % % % % % kHz pF V % Vo % Vo C % Vo Hours Vin=48V, full load, Hiccup mode Calculated Per Bell Core SR-332 (IO =80% load, Vin=48 V, Vo=3.3 V; Ta = 25 C) The total voltage increased by trim and remote sense should not exceed 10%Vo. Notes
General Specifications
Parameter Efficiency
Vin=48V, full load
Switching Frequency Isolation capacitance Input to Output Isolation Voltage Remote Sense Compesation Output Voltage Trim Range Over Temperature Protection Over Voltage Protection MTBF Dimensions Inches (L × W × H) Millimeters (L × W × H) Weight
2.30 x 1.45 x 0.395 58.42 x 36.83 x 10.03 41 -
g
Note: All specifications are typical at nominal input, full load at 25 C unless noted.
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 Min -0.3 2.4 -0.3 2.4 0 Typ Max 0.8 18 0.8 18 0.75 Unit V V V V mA Notes 0RQB-C5TxxL. The remote on/off pin open, Unit off. 0RQB-C5Txx0. The remote on/off pin open, Unit on.
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 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Output Trim Equations
Trim Resistor Calculate
Equations for calculating the trim resistor are shown below (Unit: kΩ). The Trim Down resistor should be connected between the Trim pin and Ground pin. The Trim Up resistor should be connected between the Trim pin and the Vout. Only one of the resistors should be used for any given application.
1) For Vo=1.5 V – 12 V:
511 Rtrimdown 10.22 delta
(100 delta ) Vo 5.11 626 10.22 1.225 delta
Vout Module Trim GND Rtrimdown
Rtrimup
Note:
Vout Module Trim GND Rtrimup
delta
Vo _ req Vo
Vo
100%
Vo_req=Desired (trimmed) output voltage [V]; Vo=output voltage Vo=12.006 V for 12 V output; Vo=5.000 V for 5 V output; Vo=3.308 V for 3.3 V output; Vo=2.505 V for 2.5 V output; Vo=1.804 V for 1.8 V output; Vo=1.503 V for 1.5 V output
2) For Vo=1.2 V:
Rtrimdown
Note:
511 10.22 delta
Rtrimup
(100 delta ) Vo 5.11 313 10.22 0.6125 delta
delta
Vo _ req Vo
Vo
100%
Vo_req=Desired (trimmed) output voltage [V]; Vo=output voltage Vo=1.202 V for 1.2 V 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 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Output Trim Equations (continued)
Trim Voltage Calculate
Equations for calculating the external trim voltage are shown below (Unit: V).
1) For Vo=1.5 V – 12 V:
Vout
Vtrim
2.45 Vo _ req 1.225 [V ] Vo
Module
Trim GND Vtrim
Note: Vo_req=Desired (trimmed) output voltage [V]; Vo=output voltage Vo=12.006 V for 12 V output; Vo=5.000 V for 5 V output; Vo=3.308 V for 3.3 V output; Vo=2.505 V for 2.5 V output; Vo=1.804 V for 1.8 V output; Vo=1.503 V for 1.5 V output
2) For Vo=1.2 V:
Vout
Vtrim
1.226 Vo_ req 0.614 V Vo
Module
Trim GND Vtrim
Note: Vo_req=Desired (trimmed) output voltage [V]; Vo=output voltage Vo=1.202 V for 1.2 V 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 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Efficiency Data
90.0% 85.0%
EFFICIENCY
EFFICIENCY
90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 36 V 48 V 75 V
80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% 5.00 12.50 25.00 37.50 50.00 OUTPUT CURRENT(A) 36 V 48 V 75 V
50.0% 5.00
12.50
25.00
37.50
50.00
OUTPUT CURRENT(A)
0RQB-C5TV2x
0RQB-C5TV5x
95% 90%
EFFICIENCY
EFFICIENCY
95% 90%
85% 80% 75% 70% 5 13 25 38 50 OUTPUT CURRENT (A)
36 V 48 V 75 V
85% 80% 75% 70% 5 13 25 38 50 OUTPUT CURRENT (A)
36 V 48 V 75 V
0RQB-C5TV8x
0RQB-C5T02x
95% 90%
EFFICIENCY
95% 90%
85% 80% 75% 70% 5 11 23 34 46 OUTPUT CURRENT (A)
36 V 48 V 75 V
EFFICIENCY
85% 80% 75% 70% 3 8 15 23 30 OUTPUT CURRENT (A)
36 V 48 V 75 V
0RQB-C5T03x
0RQB-C5T05x
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 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Efficiency Data (continued)
95% 90%
EFFICIENCY
85% 80% 75% 70% 1 3 6 9 12 OUTPUT CURRENT (A)
36 V 48 V 75 V
0RQB-C5T12x
Thermal Derating Curves
Vin=48V, with maximum junction temperature of semiconductors derated to 120 degree C.
0RQB-C5Txxx
0RQB-C5T12x
0RQB-C5T05x
0RQB-C5T03x
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
9
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Thermal Derating Curves (continued)
0RQB-C5T02x
0RQB-C5TV8x
0RQB-C5TV5x
0RQB-C5TV2x
Thermal Reference
Note: TH1, TH2, TH3 and TH4 are hot spots which should not exceed 115 degree 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 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs May 17, 2011
Ripple and Noise Waveforms
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Ripple and noise at full load, 1.2 V/50 A output
Ripple and noise at full load, 1.5 V/50 A output
Ripple and noise at full load, 1.8 V/50 A output
Ripple and noise at full load, 2.5 V/45 A output
Ripple and noise at full load, 3.3 V/46 A output
Ripple and noise at full load, 5.0 V/30 A output
Ripple and noise at full load, 12 V/12 A output Note: Ripple and noise is tested with a 1 uF ceramic cap and a 10 uF tantalum capat 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
11
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs May 17, 2011
Transient Response Waveforms
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Vout= 1.2 V 50%-75% Load Transients
Vout= 1.2 V 75%-50% Load Transients
Vout= 1.5 V 50%-75% Load Transients
Vout= 1.5 V 75%-50% Load Transients
Vout= 1.8 V 50%-75% Load Transients
Vout= 1.8 V 75%-50% Load Transients
Vout= 2.5 V 50%-75% Load Transients
Vout= 2.5 V 75%-50% Load Transients
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
12
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Transient Response Waveforms (continued)
Vout= 3.3 V 50%-75% Load Transients
Vout= 3.3 V 75%-50% Load Transients
Vout= 5.0 V 50%-75% Load Transients
Vout= 5.0 V 75%-50% Load Transients
Vout= 12 V 50%-75% Load Transients
Vout= 12 V 75%-50% Load Transients
Note: Transient response at Vin=48 V, di/dt = 0.1 A/uS, with a 1 uF ceramic capacitor and a 10 uF Tantalum 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
13
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Mechanical Outline
Pin Connections
Pin 1 2 3 4 5 6 7 8 Function Vin (+) Remote On/Off Vin (-) Vout (-) Remote Sense (-) Trim Remote Sense (+) Vout (+) Pin Size 0.04" 0.04" 0.04" 0.062" 0.04" 0.04" 0.04" 0.062"
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
14
ISOLATED DC/DC CONVERTERS
48 Vdc Input 12 Vdc/12 A, 3.3 Vdc/46 A, 5 Vdc/30 A, 1.2-2.5 Vdc/50 A Outputs May 17, 2011
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Revision History
Date 2011-05-17 Revision C Changes Detail Add trim equation for external trim voltage. Approval JZ Wang
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products.
2011 Bel Fuse Inc. Specifications subject to change without notice. 051711
15
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
