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ISOLATED DC/DC CONVERTERS
48 V Input 12 V/12 A, 3.3 V/46 A, 5 V/30 A, 1.2 V - 2.5 V/50 A
0RQB-C5T Series
* * * * * * * * Isolated High Efficiency High Power Density Low Cost
RoHS Compliant
* * * * * * * * OCP/SCP
PRELIMINARY
Output Over Voltage Shutdown Over Temperature Protection Remote On/Off Output Voltage Trim Positive/Negative Remote Sense Input Over Voltage Lockout Basic Isolation
Input Under Voltage Lockout Fixed Frequency (330 kHz) Active Low/High (Option) UL60950 Recognized (UL/cUL)
Description
The 0RQB-C5T Series are isolated dc/dc converters that operate from a nominal 48 V source. These units will provide up to 150 W of output power from a nominal 48 V input. These units are designed to be highly efficient and low cost. Typical efficiency of 12 V output at 48 V 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
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
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 12 V/12 A, 3.3 V/46 A, 5 V/30 A, 1.2 V - 2.5 V/50 A
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 V 32 V 30 V 76 V
Typ 48 V 120 mA 10 mA 10 mA 1.5 mA 0.05 A s 34 V 32 V 78 V
2
Max 75 V 4.5 A 4.9 A 4.9 A 4.1 A 3.0 A 2.6 A 2.1 A 180 mA 15 mA 15 mA 3 mA 0.1 A s 35 V 34 V 80 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.
Output Specifications
Parameter Output Voltage Set Point 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 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 Vo=12 V Vo=5.0 V Vo=3.3 V Vo=1.2 V-2.5 V 0A 0A 0A 0A Min 11.790 V 4.925 V 3.260 V 2.450 V 1.770 V 1.477 V 1.176 V Typ 12.030 V 5.004 V 3.308 V 2.503 V 1.808 V 1.500 V 1.200 V 8 mV 5 mV 3 mV 10 mV 5 mV 2 mV 60 mV 40 mV 30 mV 20 mV 15 mV Max 12.270 V 5.075 V 3.360 V 2.550 V 1.844 V 1.523 V 1.224 V 15 mV 15 mV 6 mV 20 mV 10 mV 5 mV 100 mV 65 mV 50 mV 40 mV 30 mV 12 A 30 A 46 A 50 A Notes
Vin=48 V, Io=50% full load
Output Current
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 12 V/12 A, 3.3 V/46 A, 5 V/30 A, 1.2 V - 2.5 V/50 A
Output Specifications (continued)
Parameter 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 Output Capacitance VO=12.0 V VO=5.0 V VO=1.2 V-3.3 V Transient Response Overshoot 50% ~ 75% Max Load Settling Time Overshoot 75% ~ 50% Max Load Settling Time Overshoot 50% ~ 75% Max Load Settling Time Overshoot 75% ~ 50% Max Load Settling Time Overshoot 50% ~ 75% Max Load Settling Time Overshoot 75% ~ 50% Max Load Settling Time Overshoot 50% ~ 75% Max Load Settling Time Overshoot 75% ~ 50% Max Load Settling Time Overshoot 50% ~ 75% Max Load Settling Time Overshoot 75% ~ 50% Max Load Settling Time Overshoot 50% ~ 75% Max Load Settling Time Overshoot 75% ~ 50% Max Load Settling Time 10 mS 0 uF 0 uF 0 uF 70 mV 60 mV 50 mV 45 mV 40 mV 55 mV 40 mV 0% 600 mV 200 uS 600 mV 200 uS 250 mV 100 uS 250 mV 100 uS 100 mV 200 uS 100 mV 200 uS 100 mV 300 uS 100 mV 300 uS 100 mV 200 uS 100 mV 200 uS 100 mV 200 uS 100 mV 200 uS 90 mV 80 mV 70 mV 60 mV 60 mV 70 mV 60 mV 100 mS 5% 2200 uF 10000 uF 20000 uF 800 mV 300 uS 800 mV 300 uS 375 mV 200 uS 375 mV 200 uS 200 mV 300 uS 200 mV 300 uS 200 mV 400 uS 200 mV 400 uS 140 mV 300 uS 140 mV 300 uS 120 mV 300 uS 120 mV 300 uS Min 14 A 35 A 50 A 55 A Typ 15.5 A 40 A 60 A 60 A 2 3A s 25 mV 20 mV 20 mV 15 mV Max 18 A 45 A 65 A 65 A 2 5A s 30 mV 25 mV 20 mV 20 mV Notes
Test conditions: 0-20 MHz BW, with a 1 uF ceramic capacitor and a 10 uF Tantalum capacitor at the output.
VO=12.0 V
VO=5.0 V
VO=3.3 V
VO=2.5 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.
Vo=1.8 V VO=1.5 V
VO=1.2 V
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 12 V/12 A, 3.3 V/46 A, 5 V/30 A, 1.2 V - 2.5 V/50 A
General Specifications
Parameter Efficiency 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 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 millimeters Weight 2.30 x 1.45 x 0.395 58.42 x 36.83 x 10.03 41 g 90% 89% 88% 87% 85% 82% 80% 280 kHz 80% Vo 93% 92.5% 91% 90.5% 88% 85% 83% 330 kHz 1500 pF 125 C 130% Vo TBD 380 kHz 2000 V 10% Vo 110% Vo Vin=48V, full load, Hiccup mode Calculated Per Bell Core SR-332 (IO = Nominal; Ta = 25 C) The total voltage increased by trim and remote sense should not exceed 10%Vo. Min Typ Max Notes
Vin=48 V, full load , Ta=25 C
Control Specifications
Parameter Remote On/Off Signal Low (Unit On) Signal High (Unit Off) Signal Low (Unit Off) Signal High (Unit On) Current Sink Active High Active Low -0.3 V 2.4 V -0.3 V 2.4 V 0 mA 0.8 V 18 V 0.8 V 18 V 0.75 mA 0RQB-C5TxxL. The remote on/off pin open, Unit off. 0RQB-C5Txx0. The remote on/off pin open, Unit on. Min Typ Max Notes
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 12 V/12 A, 3.3 V/46 A, 5 V/30 A, 1.2 V - 2.5 V/50 A
Output Trim Equations
Equations for calculating the trim resistor are shown below (Unit: k). 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:
Vout
511 Rtrimdown = - 10.22 delta
Module
Trim GND Rtrimdown
Rtrimup =
(100 + delta ) Vo 5.11 - 626 - 10.22 1.225 delta
Vout Module Trim GND Rtrimup
Note:
delta =
(Vo _ req - Vo) x 100[%]
Vo
Vo_req=Desired (trimmed) output voltage [V]; Vo=output voltage Vo=12.004 V for 12 V output; Vo=5 V for 5.004 V output; Vo=3.308 V for 3.3 V output; Vo=2.503 V for 2.5 V output; Vo=1.808 V for 1.8 V output; Vo=1.503 V for 1.5 V output
2) For Vo=1.2 V:
Rtrimdown = 511 - 10.22 delta Rtrimup = (100 + delta ) Vo 5.11 - 313 - 10.22 0.6125 delta
Note:
delta =
(Vo _ req - Vo ) x100[%]
Vo
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
ISOLATED DC/DC CONVERTERS
48 V Input 12 V/12 A, 3.3 V/46 A, 5 V/30 A, 1.2 V - 2.5 V/50 A
Efficiency Data
90.0% 85.0% EFFICIENCY
EFFICIENCY
90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% 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 36 V 48 V 75 V
5.00
12.50
25.00
37.50
50.00
OUTPUT CURRENT(A)
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 85% 80% 75% 70% 5 11 23 34 46 OUTPUT CURRENT (A) 36 V 48 V 75 V
EFFICIENCY
95% 90% 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
ISOLATED DC/DC CONVERTERS
48 V Input 12 V/12 A, 3.3 V/46 A, 5 V/30 A, 1.2 V - 2.5 V/50 A
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
ISOLATED DC/DC CONVERTERS
48 V Input 12 V/12 A, 3.3 V/46 A, 5 V/30 A, 1.2 V - 2.5 V/50 A
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
ISOLATED DC/DC CONVERTERS
48 V Input 12 V/12 A, 3.3 V/46 A, 5 V/30 A, 1.2 V - 2.5 V/50 A
Ripple and Noise Waveforms
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
ISOLATED DC/DC CONVERTERS
48 V Input 12 V/12 A, 3.3 V/46 A, 5 V/30 A, 1.2 V - 2.5 V/50 A
Transient Response Waveforms
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
ISOLATED DC/DC CONVERTERS
48 V Input 12 V/12 A, 3.3 V/46 A, 5 V/30 A, 1.2 V - 2.5 V/50 A
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
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 12 V/12 A, 3.3 V/46 A, 5 V/30 A, 1.2 V - 2.5 V/50 A
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"
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products.
(c)2006 Bel Fuse Inc. Specifications subject to change without notice. 032806
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

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