ISOLATED DC/DC CONVERTERS 48 Vdc Input 1.5 Vdc - 12 Vdc / 22 A - 5 A Outputs, 1/16 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 12, 2010 xRSB-50T Series RoHS Compliant Rev.F • Isolated • Input Under Voltage Lockout • Fixed Frequency (600 kHz) • Output Over Voltage Shutdown • High Efficiency • OCP/SCP • High Power Density • Over Temperature Protection • Low Cost • Remote On/Off (option) • Output Voltage Trim • Positive/Negative Remote Sense • Basic Insulation • Through Hole and SMT (option) • UL60950-1 Recognized (UL/cUL) Description The xRSB-50T series are isolated dc/dc converters that operate from a nominal 48 Vdc source. These units will provide up to 60 W of output power from a nominal 48 Vdc input. These units are designed to be highly efficient and low cost. Features include remote on/off, over current protection and under voltage lockout. These converters are provided in an industry standard sixteenth brick package. Part Selection Output Voltage 1.5 V Input Voltage 36 V - 75 V Max. Output Current 22 A Max. Output Power 33 W Typical Efficiency 85% Model Number Active Low xRSB-50TV5L Model Number Active High xRSB-50TV50 1.8 V 36 V - 75 V 20 A 36 W 87% xRSB-50TV8L xRSB-50TV80 2.5 V 36 V - 75 V 18 A 45 W 87% xRSB-50T02L xRSB-50T025 3.3 V 36 V - 75 V 15 A 50 W 89% xRSB-50T03L xRSB-50T033 5.0 V 36 V - 75 V 12 A 60 W 90% xRSB-50T05L xRSB-50T050 12 V 36 V - 75 V 5A 60 W 89% xRSB-50T12L xRSB-50T120 Notes: 1. Add “G” suffix at the end of the model number to indicate Tray Packaging. Replace”x” with “S” to indicate SMT package, or “0” to indicate through hole package. 2. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers. Absolute Maximum Ratings Min Typ Max Input Voltage (continuous) Parameter -0.3 V - 80 V Input Voltage Transient (100 ms) -0.3 V 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 Notes 100 V 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 Vdc Input 1.5 Vdc - 12 Vdc / 22 A - 5 A Outputs, 1/16 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 12, 2010 Input Specifications Parameter Min 36 V Typ 48 V Max 75 V Input Current (full load) - - 2.4 A Input Current (no load) - 70 mA 120 mA Remote Off Input Current - 1 mA 3 mA Input Reflected Ripple Current (pk-pk) - 20 mA 50 mA Input Reflected Ripple Current (rms) - 3 mA 7 mA I t Inrush Current Transient - 0.01 A s 0.02 A s Turn On Voltage Threshold 31 V 32 V 35 V Turn Off Voltage Threshold 30 V 31 V 34 V Input Voltage 2 2 Notes Tested with simulated source impedance of 15 uH, 5 Hz to 20 MHz; use a 100 uF/100 V electrolytic capacitor with ESR=1 ohm max at 200 kHz at the input. 2 Note: All specifications are typical at nominal input, full load at 25 °C unless otherwise stated. Output Specifications Parameter Min Typ Max 1.478 V 1.773 V 2.463 V 3.250 V 4.925 V 11.750 V 1.5 V 1.8 V 2.5 V 3.3 V 5.0 V 12.0 V 1.523 V 1.827 V 2.538 V 3.350 V 5.075 V 12.250 V Vo=1.5 - 1.8 V Vo=2.5 V Vo=3.3 V Vo=5.0 V Vo=12 V - ±0.5 mV ±1 mV ±3 mV ±4 mV ±10 mV ±3 mV ±6 mV ±8 mV ±9 mV ±25 mV Vo=1.5 - 2.5 V Vo=3.3 - 5.0 V Vo=12 V - ±3 mV ±4 mV ±9 mV ±5 mV ±9 mV ±18 mV Regulation Over Temperature(-40 °C to +85 °C) Vo=1.5 - 1.8 V Vo=2.5 - 3.3 V Vo=5.0 V Vo=12 V - ±6 mV ±9 mV ±15 mV ±20 mV ±14 mV ±16 mV ±30 mV ±35 mV 0A 0A 0A 0A 0A 0A - 22 A 20 A 18 A 15 A 12 A 5A Notes Output Voltage Set Point Vo=1.5 V Vo=1.8 V Vo=2.5 V Vo=3.3 V Vo=5.0 V Vo=12 V Line Regulation Load Regulation Test conditions: Vin=48 V; Io=50% load Output Current Vo=1.5 V Vo=1.8 V Vo=2.5 V Vo=3.3 V Vo=5.0 V Vo=12 V 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 Vdc Input 1.5 Vdc - 12 Vdc / 22 A - 5 A Outputs, 1/16 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 12, 2010 Output Specifications (continued) Parameter Current Limit Threshold Min Typ Max 28 A 24 A 22 A 19 A 14 A 5.2 A - 34 A 28 A 26 A 22 A 19 A 6.5 A 2 0.5 A s 40 A 34 A 30 A 26 A 24 A 8.5 A 2 1A s Vo=1.5 - 1.8 V Vo=2.5 V Vo=3.3 V Vo=5.0 V Vo=12 V - 6 mV 10 mV 12 mV 25 mV 30 mV 12 mV 20 mV 25 mV 50 mV 55 mV Vo=1.5 - 1.8 V Vo=2.5 V Vo=3.3 V Vo=5.0 V Vo=12 V Turn on Time - 40 mV 45 mV 55 mV 70 mV 90 mV 35 mS 70 mV 80 mV 90 mV 120 mV 180 mV 70 mS Overshoot at Turn on - 0% 5% 470 uF 470 uF 220 uF 100 uF 22 uF - 15000 uF 10000 uF 5600 uF 4700 uF 470 uF Vo=1.5 V Vo=1.8 V Vo=2.5 V Vo=3.3 V Vo=5.0 V Vo=12 V Short Circuit Surge Transient Ripple and Noise (rms) Ripple and Noise (pk-pk) Notes Tested at 0-20 MHz BW, with a 1 uF ceramic capacitor and a Tantalum capacitor (refer to the min. output capacitance below for each output) at the output. Output Capacitance Vo=1.5 V Vo=1.8 - 2.5 V Vo=3.3 V Vo=5.0 V Vo=12 V Recommend to use AVX TPS series Tantalum capacitor as the min capacitor Transient Response 25% ~ 50% Max Load 50% ~ 25% Max Load 25% ~ 50% Max Load 50% ~ 25% Max Load 25% ~ 50% Max Load 50% ~ 25% Max Load 25% ~ 50% Max Load 50% ~ 25% Max Load Overshoot - 110 mV 150 mV Settling Time - 110 uS 180 uS Overshoot Vo=1.5 - 1.8 V - 110 mV 150 mV Settling Time - 110 uS 180 uS Overshoot - 150 mV 250 mV Settling Time - 120 uS 200 uS 250 mV Overshoot Vo=2.5 - 3.3 V - 150 mV Settling Time - 120 uS 200 uS Overshoot - 220 mV 350 mV Settling Time Overshoot Vo=5.0 V - 120 uS 250 uS - 220 mV 350 mV Settling Time - 120 uS 250 uS Overshoot - 400 mV 650 mV Settling Time Overshoot Settling Time Vo=12 V - 150 uS 300 uS - 400 mV 650 mV - 150 uS 300 uS Test conditions: di/dt = 0.1 A/uS, Vin=48 V, with a 1uF ceramic capacitor and a Tantalum capacitor (refer to the min. output capacitance above for each output) at the output. Note: All specifications are typical at nominal input, full load 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 Vdc Input 1.5 Vdc - 12 Vdc / 22 A - 5 A Outputs, 1/16 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 12, 2010 General Specifications Parameter Min Typ Max 82% 84% 86% 87% 86% 85% 87% 89% 90% 89% - Switching Frequency 540 kHz 600 kHz 660 kHz Isolation Capacitance - 3900 pF - Output Voltage Trim Range Vo=1.5 - 5.0 V Vo=12 V 90% Vo 80% Vo - 110% Vo 110% Vo Over Temperature Protection 120 °C - 140 °C - 130% Vo 160% Vo Notes Efficiency Vo=1.5 V Vo=1.8 - 2.5 V Vo=3.3 V Vo=5.0 V Vo=12 V Over Voltage Protection MTBF 2,770,832 hours Vin=48 V, full load Test conditions: Vin=48 V, full load and short the feedback optocoupler. Calculated Per Bell Core SR-332 (IO =80% load, Vin=48 V, Vo=5 V; Ta = 25 °C) Dimensions Inches (L × W × H) Millimeters (L × W × H) Dimensions Inches (L × W × H) Millimeters (L × W × H) Weight 1.3 x 0.9 x 0.364 33.02 x 22.86 x 9.24 SMT Package 1.3 x 0.9 x 0.388 33.02 x 22.86 x 9.85 Through Hole Package - 13 g - Note: All specifications are typical at 25 °C unless otherwise stated. Control Specifications Parameter Min Typ Max -0.3 V - 0.8 V 2.95 V - 18 V -0.3 V - 0.8 V 2.95 V - 18 V 0 mA - 1 mA Notes Remote On/Off Signal Low (Unit On) Active Low Signal High (Unit Off) Signal Low (Unit Off) Active High Signal High (Unit On) Current Sink - When Remote On/Off pin is open, for active low option, unit is off; for active high option, unit is on 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 Vdc Input 1.5 Vdc - 12 Vdc / 22 A - 5 A Outputs, 1/16 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 12, 2010 Output Trim Equations 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. Vout Rtrimdown 511 = − 10.22 delta Module Rtrimdown GND Vout (100 + delta ) ⋅ Vo ⋅ 5.11 − 626 = − 10.22 1.225 ⋅ delta Rtrimup Trim Module Rtrimup Trim GND Note: delta = (Vo _ req − Vo ) × 100 [% ] Vo Vo_req=Desired (trimmed) output voltage [V] Vo=1.503 V for 1.5 V output; Vo=1.804 V for 1.8 V output; Vo=2.505 V for 2.5 V output; Vo=3.308 V for 3.3 V output; Vo=5.002 V for 5 V output; Vo=12.007 V for 12 V output. 90% 90% 85% 85% 80% 36 V 48 V 75 V 75% 70% 65% EFFICIENCY EFFICIENCY Efficiency Data 80% 70% 65% 60% 60% 55% 55% 50% 50% 2.2A 36V 48V 75V 75% 5.5A 11A 16A OUTPUT CURRENT (A) Vo=1.5 V 22A 2A 5A 10A 15A 20A OUTPUT CURRENT (A) Vo=1.8 V 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 Vdc Input 1.5 Vdc - 12 Vdc / 22 A - 5 A Outputs, 1/16 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 12, 2010 Efficiency Data (continued) 90% 90% 85% 80% 36V 48V 75V 75% 70% 65% EFFICIENCY EFFICIENCY 85% 80% 75% 36V 48V 75V 70% 65% 60% 60% 55% 55% 50% 50% 1.8A 4.5A 9A 12.A 18A 1.5A 3.75A OUTPUT CURRENT (A) 11.25A 15A Vo=3.3 V 90% 90% 85% 85% 80% 80% 75% 36 V 48 V 75 V 70% 65% EFFICIENCY EFFICIENCY Vo=2.5 V 75% 36 V 48 V 75 V 70% 65% 60% 60% 55% 55% 50% 50% 1.2A 7.5A OUTPUT CURRENT (A) 3A 6A 9A OUTPUT CURRENT (A) Vo=5.0 V 12A 0.5A 1.25A 2.5A 3.75A 5A OUTPUT CURRENT (A) Vo=12 V Thermal Derating Curves Vin=48 V, Vo=1.8 V Vin=48 V, Vo=2.5 V 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 Vdc Input 1.5 Vdc - 12 Vdc / 22 A - 5 A Outputs, 1/16 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 12, 2010 Thermal Derating Curves (continued) Vin=48 V, Vo=3.3 V, Vin=48 V, Vo=5.0 V Vin=48 V, Vo=12 V Ripple and Noise Waveforms Vo=1.8 V Vo=2.5 V 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 Vdc Input 1.5 Vdc - 12 Vdc / 22 A - 5 A Outputs, 1/16 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 12, 2010 Ripple and Noise Waveforms (continued) Vo=3.3 V Vo=5.0 V Vo=12 V Note: Ripple and Noise at full load, 48 V input, Ta=25 deg C. 1) For Vo=1.8 V -2.5 V, with a 1 uF ceramic capacitor and a 470 uF tantalum cap at the output; 2) For Vo=3.3 V, with a 1 uF ceramic capacitor and a 220 uF tantalum cap at the output; 3) For Vo=5.0 V, with a 1 uF ceramic capacitor and a 100 uF tantalum cap at the output; 4) For Vo=12 V, with a 1 uF ceramic capacitor and a 22 uF tantalum cap 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 Vdc Input 1.5 Vdc - 12 Vdc / 22 A - 5 A Outputs, 1/16 Brick Apr. 12, 2010 Bel Power Inc., a subsidiary of Bel Fuse Inc. Transient Response Waveforms Vo=1.8 V 50% to 25% Load Transients Vo=1.8 V 25% to 50% Load Transients Vo=2.5 V 50% to 25% Load Transients Vo=2.5 V 25% to 50% Load Transients Vo=3.3 V 50% to 25% Load Transients Vo=3.3 V 25% to 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 ISOLATED DC/DC CONVERTERS 48 Vdc Input 1.5 Vdc - 12 Vdc / 22 A - 5 A Outputs, 1/16 Brick Apr. 12, 2010 Bel Power Inc., a subsidiary of Bel Fuse Inc. Transient Response Waveforms (continued) Vo=5 V 50% to 25% Load Transients Vo=12 V 50% to 25% Load Transients Vo=5 V 25% to 50% Load Transients Vo=12 V 25% to 50% Load Transients Note: Transients Response at Vin=48 V, di/dt=0.1A/uS, Ta=25 deg C. 1) For Vo=1.8 V -2.5 V, with a 1 uF ceramic capacitor and a 470 uF tantalum cap at the output; 2) For Vo=3.3 V, with a 1 uF ceramic capacitor and a 220 uF tantalum cap at the output; 3) For Vo=5.0 V, with a 1 uF ceramic capacitor and a 100 uF tantalum cap at the output; 4) For Vo=12 V, with a 1 uF ceramic capacitor and a 22 uF tantalum cap 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 Vdc Input 1.5 Vdc - 12 Vdc / 22 A - 5 A Outputs, 1/16 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 12, 2010 Mechanical Outline SMT Package Pin Connections Pin Function 1 Vin (+) 2 Remote On/Off 3 Vin (-) 4 Vout- 5 Remote Sense (-) 6 Trim 7 Remote Sense (+) 8 Vout (+) 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 Vdc Input 1.5 Vdc - 12 Vdc / 22 A - 5 A Outputs, 1/16 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 12, 2010 Mechanical Outline (continued) Through Hole Package Pin Connections Pin 1 2 3 4 5 6 7 8 Function Vin (+) Remote On/Off Vin (-) VoutRemote Sense (-) Trim Remote Sense (+) Vout (+) 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; Tolerances: x.xx +/-0.02 in. x.xxx +/-0.010 in. 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 Vdc Input 1.5 Vdc - 12 Vdc / 22 A - 5 A Outputs, 1/16 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Apr. 12, 2010 Revision History Date Revision 2010-4-12 F Changes Detail Approval Update the 0RSB-50T series product height from 0.378’’ to 0.388’’. Jack Fan 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. 041210 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