ISOLATED DC/DC CONVERTERS
48 Vdc Input Apr. 13, 2011 3.3 Vdc/50 A, 5.0 Vdc/30 A Output
Bel Power Inc., a subsidiary of Bel Fuse Inc.
RoHS Compliant Rev.B
0RHB-C5T Series Features
Isolated High Efficiency High Power Density Fixed Frequency (300 kHz) Low Cost
Output Over Voltage Shutdown Over Temperature Protection OCP/SCP Remote On/Off Output Voltage Trim Positive/Negative Remote Sense
Input Under-Voltage Lockout Input Over-Voltage Lockout UL60950-1 Recognized (UL/cUL)
Applications
Networking Computers and peripherals Telecommunications
Description
The 0RHB-C5T Series are isolated dc/dc converters that operate from a nominal 48 Vdc source. This unit will provide up to 165 W of output power from a nominal 48 Vdc input. This unit is designed to be highly efficient and low cost. It is provided in an industry standard half-brick package.
Part Selection
Output Voltage 5.0 V 3.3 V Input Voltage 48 V 48 V Max. Output Current 30 A 50 A Max. Output Power 150 W 165 W Typical Efficiency 93.0% 92.5% Model Number Active High 0RHB-C5T050 0RHB-C5T033 Model Number Active Low 0RHB-C5T05L 0RHB-C5T03L
Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging.
Part Number Explanation 0 R HB – 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, 1/2 Brick 4---Series code 5---Input range 48V wide (36-75V) 6---Output voltage 7---Suffix
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 Apr. 13, 2011 3.3 Vdc/50 A, 5.0 Vdc/30 A Output
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Min -0.3 -0.3 -40 -55 Typ Max 80 18 2000 85 125 Unit V V V C C Notes
Absolute Maximum Ratings
Parameter Input Voltage (continuous) Remote On/Off I/O Isolation Voltage 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) Vo=5.0 V Vo=3.3 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 Threshold
2
Min 36 31 29 76
Typ 48 120 5 20 5 0.05 -
Max 75 5.0 5.2 180 20 40 10 0.1 35 33 80
Unit V A A mA mA mA mA As V V V
2
Notes
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 25 C unless otherwise stated.
Output Specifications
Parameter Output Voltage Set Point Vo=5.0 V Vo=3.3 V Line Regulation Vo=5.0 V Vo=3.3 V Load Regulation Vo=5.0 V Vo=3.3 V Regulation Over Temperature (-40 C to +85 C) Vo=5.0 V Vo=3.3 V Output Current Vo=5.0 V Vo=3.3 V Current Limit Threshold Vo=5.0 V Vo=3.3 V Min 4.925 3.250 Typ 5.000 3.300 5 3 10 7 Max 5.075 3.350 10 7 20 15 Unit V V mV mV mV mV Notes Vin=48V, Io=50% load
0 0 32 55
45 30 38 65
75 50 30 50 45 75
mV mV A A A A
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 Apr. 13, 2011 3.3 Vdc/50 A, 5.0 Vdc/30 A Output
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Min Vo=5.0 V Vo=3.3 V 0 0 Vo=5.0 V Vo=3.3 V Typ 3 25 15 70 55 15 0 250 250 250 250 100 200 100 200 Max 5 50 30 140 100 20 5 10000 20000 400 400 400 400 200 300 200 300 Unit As mV mV mV mV mS % uF uF mV uS mV uS mV mS mV mS 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. Test conditions: 0-20MHz BW, with a 1uF ceramic capacitor and a 10uF Tantalum capacitor at the output.
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Output Specifications (continued)
Parameter Short Circuit Surge Transient Ripple and Noise (rms) Vo=5.0 V Vo=3.3 V Ripple and Noise (pk-pk) Vo=5.0 V Vo=3.3 V Turn on Time Overshoot at Turn on Output Capacitance Notes
Transient Response 75% ~ 50% Max Load 50% ~ 75% Max Load 75% ~ 50% Max Load 50% ~ 75% Max Load 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 otherwise stated.
General Specifications
Parameter Efficiency Vo=5.0 V Vo=3.3 V Switching Frequency Isolation capacitance Output Voltage Trim Range Over Temperature Protection Over Voltage Protection Weight MTBF Dimensions Inches (L × W × H) Millimeters (L × W × H) 2.28 x 2.4 x 0.42 57.51 x 60.98 x 10.67 1 2
Min 90 90 300 80 -
Typ 93.0 92.5 330 1500 120 130 76 1,113,071
Max 360 110 2000 -
Unit % % kHz pF % Vo C % Vo V g Hours
Notes Vin=48V, full load
Input to Output Isolation Voltage
Calculated Per Bell Core SR-332 (IO = Nominal; Ta = 25 C)
Notes: All specifications are typical at 25 C unless otherwise stated. 1. OVP is tested under 48 Vin and full load with photo coupler short. The output will be latched off if the output voltage exceeds over voltage specification. To turn the converter on requires either cycling the ON/OFF pin or power to the converter. 2. Isolation between input and output is basic isolation, test duration is 60 seconds.
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 Apr. 13, 2011 3.3 Vdc/50 A, 5.0 Vdc/30 A Output
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Parameter Min -0.3 2.4 -0.3 2.4 Typ Max 0.8 18 0.8 18 Unit V V V V Notes The remote on/off pin open, Unit off. The remote on/off pin open, Unit on.
Control Specifications
Remote On/Off Signal Low (Unit On) Signal High (Unit Off) Signal Low (Unit Off) Signal High (Unit On) Active Low Active High
Output Trim Equations
Equations for calculating the trim resistor (in kΩ) are shown below. 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.
Vout
100 Rtrimdown 2k delta
Rtrimup
Notes:
Module
Trim GND Rtrimdown
(100 delta) Vo 122.5 2k 1.225 delta
Vout Module Trim GND Rtrimup
delta
Vo _ req Vo 100%
Vo
Vo_req=Desired(trimmed) output voltage[V] Output voltage Vo=3.304 V for 3.3 V; Vo=5.008 V for 5 V.
Efficiency Data
Efficiency Curve 94% 90%
Efficiency
Efficiency
Efficiency Curve
94% 90% 86% 82% 78% 74% 70%
86% 82% 78% 74% 70% 5 10 15 20 25 30 35 40 45 50 36 V 48 V 75 V
36 V 48 V 75 V
5
10
15
20
25
30
Output Current (A)
Output Current (A)
0RHB-C5T03x
0RHB-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 Apr. 13, 2011 3.3 Vdc/50 A, 5.0 Vdc/30 A Output
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Thermal Derating Curves
0RHB-C5T03x
0RHB-C5T05x
Ripple and Noise Waveforms
Ripple and noise at full load 3.3 V/50 A output
Ripple and noise at full load 5.0 V/30 A output
Note: Ripple and noise at 48 V input, with a 1 uF ceramic capacitor and a 10 uF tantalum 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
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ISOLATED DC/DC CONVERTERS
48 Vdc Input Apr. 13, 2011 3.3 Vdc/50 A, 5.0 Vdc/30 A Output
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Transient Response Waveforms
Vout=3.3 V, 50% to 75% Load Transients
Vout=3.3 V, 75% to 50% Load Transients
Vout=5.0 V, 50% to 75% Load Transients
Vout=5.0 V, 75% to 50% Load Transients
Note: Transient Response is tested at di/dt=0.1 A/us (Vo=3.3 V), di/dt=0.5 A/us (Vo=5.0 V), Vin=48 V, Ta=25°C, with a 1 µF ceramic capacitor and a 10 µF 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 Apr. 13, 2011 3.3 Vdc/50 A, 5.0 Vdc/30 A Output
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Mechanical Outline
Pin Connections
pin# 1 2 3 4 5 function -Input N/A On/Off +Input +Output pin size 0.04" 0.04" 0.04" 0.08" pin# 6 7 8 9 10 11 function N/A +Sense Trim -Sense N/A -Output pin size 0.04" 0.04" 0.04" 0.08"
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 Apr. 13, 2011 3.3 Vdc/50 A, 5.0 Vdc/30 A Output
Bel Power Inc., a subsidiary of Bel Fuse Inc.
Revision History
Date 2010-04-13 Revision B Updated MTBF. Changes Detail Approval XF Jiang
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimina tion of lead and other hazardous substances from electronic products.
2011 Bel Fuse Inc. Specifications subject to change without notice. 041311
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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
