ISOLATED DC/DC CONVERTERS 48 V Input 3.3 V/50 A, 5.0 V/30 A Output 0RHB-C5T Series RoHS Compliant PRELIMINARY • Isolated • Output Over Voltage Shutdown • High Efficiency • OCP/SCP • High Power Density • Over Temperature Protection • Low Cost • Remote On/Off • Fixed Frequency (330 kHz) • Output Voltage Trim • Input Under/Over Voltage Lockout • Positive/Negative Remote Sense • UL60950 Recognized (UL/cUL) Description The 0RHB-C5T Series are isolated dc/dc converters that operate from a nominal 48 V source. This unit will provide up to 165 W of output power from a nominal 48 V 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 Note: Add “G” suffix at the end of the model number to indicate Tray Packaging. Absolute Maximum Ratings Parameter Input Voltage (continuous) Remote On/Off I/O Isolation Voltage Ambient Temperature Storage Temperature Min -0.3 V -0.3 V -40 °C -55 °C Typ - Max 80 V 18 V 2000 V 85 °C 125 °C Notes Input Specifications Parameter Input Voltage Input Current (full load) Min 36V Typ 48 V Max 75 V - 120 mA 5 mA 5.0 A 5.2 A 180 mA 20 mA Input Reflected Ripple Current (pk-pk) - 20 mA 40 mA Input Reflected Ripple Current (rms) - 5 mA 10 mA Vo=5.0 V Vo=3.3 V Input Current (no load) Remote Off Input Current 2 I t Inrush Current Transient Turn-on Voltage Threshold Turn-off Voltage Threshold Input Over Voltage Threshold 31 V 29 V 76 V 2 0.05 A s - 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. 2 0.1 A s 35 V 33 V 80 V 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 ISOLATED DC/DC CONVERTERS 48 V Input 3.3 V/50 A, 5.0 V/30 A Output Output Specifications Parameter Output Voltage Set Point Min Typ Max Notes Vo=5.0 V Vo=3.3 V 4.925 V 3.250 V 5.000 V 3.300 V 5.075 V 3.350 V Vin=48 V, Io=50% load Vo=5.0 V Vo=3.3 V - ±5 mV ±3 mV ±10 mV ±7 mV Vo=5.0 V Vo=3.3 V - ±10 mV ±7 mV ±20 mV ±15 mV Vo=5.0 V Vo=3.3 V - ±45 mV ±30 mV ±75 mV ±50 mV Vo=5.0 V Vo=3.3 V 0A 0A - 30 A 50 A Vo=5.0 V Vo=3.3 V 32 A 55 A 38 A 65 A 45 A 75 A - 3A s 5A s Vo=5.0 V Vo=3.3 V - 25 mV 15 mV 50 mV 30 mV Vo=5.0 V Vo=3.3 V - 70 mV 55 mV 140 mV 100 mV Turn on Time - 15 mS 20 mS Overshoot at Turn on - 0% 5% 0 uF 0 uF - 10000 uF 20000 uF - 250 mV 400 mV - 250 uS 400 uS - 250 mV 400 mV Settling Time - 250 uS 400 uS Overshoot - 100 mV 200 mV Settling Time - 200 uS 300 uS - 100 mV 200 mV - 200 uS 300 uS Line Regulation Load Regulation Regulation Over Temperature (-40 °C to +85 °C) Output Current Current Limit Threshold Short Circuit Surge Transient 2 2 Ripple and Noise (rms) Ripple and Noise (pk-pk) Test conditions: 0-20MHz BW, with a 1uF ceramic capacitor and a 10uF Tantalum capacitor at the output. Output Capacitance Vo=5.0 V Vo=3.3 V Transient Response 75% ~ 50% Max Load 50% ~ 75% Max Load 75% ~ 50% Max Load 50% ~ 75% Max Load Overshoot Settling Time Overshoot Overshoot Settling Time Vo=5.0 V Vo=3.3 V 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. 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 ISOLATED DC/DC CONVERTERS 48 V Input 3.3 V/50 A, 5.0 V/30 A Output General Specifications Parameter Min Typ Max 90% 90% 300 kHz 80% Vo - 93.0% 92.5% 330 kHz 1500 pF 120 °C 130% Vo - 360 kHz 110% Vo 2000 V Notes Efficiency Vo=5.0 V Vo=3.3 V Switching Frequency Isolation capacitance Output Voltage Trim Range Over Temperature Protection 1 Over Voltage Protection 2 Input to Output Isolation Voltage MTBF Vin=48V, full load , Ta=25°C Calculated Per Bell Core SR-332 (IO = Nominal; Ta = 25 °C) TBD Dimensions Inches millimeters Weight - 2.28 x 2.4 x 0.42 57.51 x 60.98 x 10.67 76 g - 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. Control Specifications Parameter Min Typ Max Notes -0.3 V 2.4 V -0.3 V 2.4 V - 0.8 V 18 V 0.8 V 18 V The remote on/off pin open, Unit off. Remote On/Off Signal Low (Unit On) Signal High (Unit Off) Signal Low (Unit Off) Signal High (Unit On) Active Low Active High The remote on/off pin open, Unit on. 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. Rtrimdown = Rtrimup = Notes: delta = 100 − 2[kΩ] delta (100 + delta) ⋅ Vo − 122.5 − 2[kΩ] 1.225 ⋅ 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. Vout Module Trim GND Rtrimdown Vout Module Trim Rtrimup GND 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 V Input 3.3 V/50 A, 5.0 V/30 A Output Efficiency Data Efficiency Curve 94% 94% 90% 90% 86% 86% 36 V 48 V 75 V 82% 78% 74% Efficiency Efficiency Efficiency Curve 36 V 48 V 75 V 82% 78% 74% 70% 70% 5 10 15 20 25 30 35 40 45 Output Current (A) 0RHB-C5T03x 50 5 10 15 20 25 30 Output Current (A) 0RHB-C5T05x Thermal Derating Curves 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 ISOLATED DC/DC CONVERTERS 48 V Input 3.3 V/50 A, 5.0 V/30 A Output 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,. 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 ISOLATED DC/DC CONVERTERS 48 V Input 3.3 V/50 A, 5.0 V/30 A Output 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" RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. ©2006 Bel Fuse Inc. Specifications subject to change without notice. 032206 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