ISOLATED DC/DC CONVERTERS 48 Vdc Input 53 Vdc/8 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Sep. 19, 2011 0RHB-Q2T53x RoHS Compliant PRELIMINARY Rev.D Isolated Fixed Frequency High Efficiency OCP/SCP High Power Density Over Temperature Protection Low Cost Remote On/Off Input Under Voltage Lockout Output Voltage Trim Output Over-Voltage Shut Down Basic Insulation Class 2, Category 2, Isolated DC/DC Converter (refer to IPC-9592) Description The 0RHB-Q2T53x is isolated DC/DC converters that operate from a nominal 48 Vdc source. These units will provide up to 424W of output power from a nominal 48 Vdc input. This unit is designed to be highly efficient and low cost . Features include remote on/off, over current protection and input undervoltage lockout. This converter is provided in an industry standard half- brick package. Part Selection Output Voltage 53 Vdc Input Voltage 48 Vdc Max. Output Current 8A Max. Output Power 424W Typical Efficiency 94% Model Number Active High 0RHB- Q2T530 Model Number Active Low 0RHB- Q2T53L 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 Input Voltage (continuous) Min -0.3 V Typ - Remote On/Off -0.3 V - 18 V - - 1500 V Ambient Temperature -40 C - 85 C Storage Temperature -55 C - 125 C I/O Isolation Voltage Max 80 V Notes 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) Min 36 V - Typ 48 V 80 mA Max 72 V 12.6 A 120 mA Remote Off Input Current - 20 mA 30 mA Input Reflected Ripple Current (rms) - - 200 mA - - 1A s 33 V 32 V - 35 V 34 V 2 I t Inrush Current Transient 2 Turn-on Voltage Threshold 2 Turn-off Voltage Threshold Notes Tested with simulated source impedance of 12 uH, 5 Hz to 20 MHz; Use 150 uF/100 V electrolytic capacitor with ESR=1 ohm max, at 200 kHz@25°C. 2 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 1 ISOLATED DC/DC CONVERTERS 48 Vdc Input 53 Vdc/8 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Sep. 19, 2011 Output Specifications Parameter Output Voltage Set Point Min 52.0 V Typ 53.0 V Max 54.0 V Line Regulation - - 100 mV Load Regulation Regulation Over Temperature (-40deg.C-85deg.C) Ripple and Noise (pk-pk) - - 100 mV - - 600 mV - - 300 mV Ripple and Noise (rms) - - 60 mV Output Current Range 0A Output DC Current Limit 9A - 12A Turn On Time - 80 mS 150 mS Overshoot at Turn on - 0% 3% 300 uF - 1000 uF 50% ~ 75% of Max Load - - 800 mV Settling Time - - 800 uS 75% ~ 50% of Max Load - - 800 mV Settling Time - - 800 uS Output Capacitance Notes Vin=48 V, Io=50%load 8A Transient Response di/dt=0.1 A/us, Vin=48 Vdc, Ta=25°C, with a 1µF ceramic capacitor and 300 uF low ESR aluminum capacitor output. Note: All specifications are typical at nominal input, full load at 25°C with a 1µF ceramic capacitor and a 300uF Aluminum cap at output unless otherwise stated. General Specifications Parameter Min Typ Max 92.5% 94% - Switching Frequency - 275 kHz - Input to Output Input to Case Output to Case - - 1500 V 500 V 1500 V Output Voltage Trim Range 42 V - 56 V Isolation Capacitance Over Temperature Protection Over Voltage Protection 57 V 105 ℃ - 15 nF 60 V Efficiency FIT Notes Vin=48 V, full load , Ta=25C It’s the temperature of baseplate. Calculated Per Bell Core SR-332 (Vin=48 V, Vo=53 V, Io=8 A, Ta = 25C, 9 FIT=10 /MTBF) 258 Dimensions Inches millimeters Weight 2.28 x 2.40x 0.512 57.91 x 60.96 x 13.00 - 110 g - Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 2 ISOLATED DC/DC CONVERTERS 48 Vdc Input 53 Vdc/8 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Sep. 19, 2011 Note: 1.When Remote On/Off pin is open, for active low option, unit is off; for active high option, unit is on. 2. The efficiency is measured at Vin=48V, full load and Ta=25°C. 3.Test the temperature of baseplate. 4. All specifications are typical at nominal input, full load at 25°C unless noted. Control Specifications Parameter Min Typ Max Notes -0.3 V - 0.8 V 2.4 V - 18 V The remote on/off pin open, Unit off. -0.3 V - 0.8 V Signal High (Unit On) 2.4 V - 18 V Current Sink 0 mA - 2 mA Remote On/Off Signal Low (Unit On) Active Low Signal High (Unit Off) Signal Low (Unit Off) Active High The remote on/off pin open, Unit on. Output Trim Equations Equations for calculating the trim resistor 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. (100 delta ) Vo (100 2 delta) Rtrimup k 1.225 delta delta Vout Module Trim Rtrimup GND Rtrimdown delta 100 2 k delta Vo _ req Vo 100 % Vout Module Trim GND Rtrimdown Vo Note:Vo_req=Desired (trimmed) output voltage[V] Output voltage Vo=53.000 V Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 3 ISOLATED DC/DC CONVERTERS 48 Vdc Input 53 Vdc/8 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Sep. 19, 2011 Efficiency Data EFFICIENCY 95.0% 90.0% 36 V 85.0% 48 V 80.0% 72V 75.0% 70.0% 2.00 4.00 6.00 8.00 OUTPUT CURRENT(A) Thermal Derating Curve Vin=48V, with addition heatsink and with maximum junction temperature of semiconductors derated to 120C. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 4 ISOLATED DC/DC CONVERTERS 48 Vdc Input 53 Vdc/8 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Sep. 19, 2011 Ripple and Noise Waveforms 36 Vdc input, 53 Vdc/8 A output 48 Vdc input, 53 Vdc/8 A output 72 Vdc input, 53 Vdc/8 A output Note: Ripple and noise at full load, with a 1uF ceramic cap and a 300 uF AL cap at 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 5 ISOLATED DC/DC CONVERTERS 48 Vdc Input 53 Vdc/8 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Sep. 19, 2011 Transient Response Waveforms Vout=53V, 50% to 75% Load Transients Vout=53 V, 75% to 50% Load Transients Note: Transient response at di/dt=0.1 A/uS, with external 300uF AL Cap and 1uF Ceramic Cap. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 6 ISOLATED DC/DC CONVERTERS 48 Vdc Input 53 Vdc/8 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Sep. 19, 2011 Mechanical Outline Pin Connections pin function 1 2 3 4 Vin(+) Enable Case Vin(-) pin size 0.040" 0.040" 0.040" 0.040" pin function 5 6 7 8 9 Vo(-) NC Trim NC Vo(+) pin size 0.080" 0.040" 0.040" 0.040" 0.080" Note: Pin 6 and 8 are reserved for differential remote sense (+/- sense). No connection is needed to the pins if this feature is not needed. They are connected internal to the units respective output nodes thru low impedance resistors. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 7 ISOLATED DC/DC CONVERTERS 48 Vdc Input 53 Vdc/8 A Output Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Sep. 19, 2011 Revision History Date Revision Changes Detail 2011-07-22 PA 2011-07-28 PB 2011-08-29 PC Updated maximum height to 13mm and change in mechanical drawing in the bottom of figure. YF Sun 2011-09-19 PD Updata the Ripple and Noise, Input current (no load), Mechanical Outline, Output Trim Equations and Vout setpoint YF Sun Approval First release YF Sun Change Pin6 and Pin8 to NC. YF Sun Change the ambient temperature. 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.091911 8 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