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ISOLATED DC/DC CONVERTERS
48 V Input 1.2 V - 3.3 V/15 A, 5 V/12 A, 12 V/5 A Output, 1/8 Brick
0RCY-60T Series
* * * * * * * Isolated High Efficiency High Power Density Fix Frequency (300 kHz) Low Cost Input Under Voltage Lockout UL60950 Recognized (UL/cUL) * * * * * * *
RoHS Compliant
Output Over Voltage Shutdown OCP/SCP Over Temperature Protection Remote On/Off Logic (Option) Output Voltage Trim Positive/Negative Remote Sense Basic Isolation
Description
The 0RCY-60T Series are isolated dc/dc converters that operate from a nominal 48 V source. These units provide up to 60 W of output power from a nominal 48 V input. These units are designed to be highly efficient and low cost. Features include remote on/off, short circuit protection, over current protection, over temperature protection, input under voltage lockout, and output over voltage protection. These converters are provided in an industry standard eighth brick package.
Part Selection
Output Voltage 12.0 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 5A 12 A 15 A 15 A 15 A 15 A 15 A Max. Output Power 60.0 W 60.0 W 50.0 W 37.5 W 27 W 22.5 W 18 W Typical Efficiency 91% 91% 89% 87% 85% 84% 82% Model Number Active High 0RCY-60T120 0RCY-60T050 0RCY-60T033 0RCY-60T025 0RCY-60TV80 0RCY-60TV50 0RCY-60TV20 Model Number Active Low 0RCY-60T12L 0RCY-60T05L 0RCY-60T03L 0RCY-60T02L 0RCY-60TV8L 0RCY-60TV5L 0RCY-60TV2L
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 -2 V -40 C -55 C Typ Max 80 V 18 V 2000 V 85 C 125 C 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 1.2 V - 3.3 V/15 A, 5 V/12 A, 12 V/5 A Output, 1/8 Brick
Input Specifications
Parameter Input Voltage Input Current (full load) Vo=12.0 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) Vo=12.0 V Vo=5.0 V Vo=3.3 V Vo=2.5 V Vo=1.2 V - 1.8 V Remote Off Input Current Input Reflected Ripple Current(rms) Input Reflected Ripple Current(Pk-Pk) I t Inrush Current Transient Turn on Voltage Threshold Turn off Voltage Threshold
2
Min 36 V 32 V 30 V
Typ 48 V 90 mA 55 mA 45 mA 40 mA 30 mA 2 mA 4 mA 20 mA 0.01 A s 34 V 32 V
2
Max 75 V 3.0 A 2.8 A 2.6 A 2.0 A 1.4 A 1.2 A 0.9A 130 mA 75 mA 70 mA 70 mA 60 mA 10 mA 10 mA 40 mA 0.02 A s 35 V 33 V
2
Notes
with simulated source impedance of 10 uH; a 100uF/100V electrolytic capacitor with ESR = 1 ohm max. 5 Hz to 20 MHz
Note: All specifications are typical at 25 C unless otherwise stated.
Output Specifications
Parameter Output Voltage Set Point VO=12.0 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=12.0 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 Load Regulation VO=12.0 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 12 mV 5 mV 3 mV 3 mV 3 mV 3 mV 3 mV 24 mV 10 mV 7 mV 7 mV 7 mV 7 mV 7 mV Min 11.760 V 4.925 V 3.250 V 2.463 V 1.773 V 1.478 V 1.182 V Typ 12.0 V 5.0 V 3.3 V 2.5 V 1.8 V 1.5 V 1.2 V 30 mV 10 mV 7 mV 6 mV 5 mV 5 mV 5mV Max 12.240 V 5.075 V 3.350 V 2.538 V 1.827 V 1.523 V 1.218 V 60 mV 20 mV 15 mV 12 mV 10 mV 10 mV 10 mV Notes
Vin=48 V, Io=50% full load, Ta=25 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 1.2 V - 3.3 V/15 A, 5 V/12 A, 12 V/5 A Output, 1/8 Brick
Output Specifications (continued)
Parameter Regulation Over Temperature (-40 C to +85 C) VO=12.0 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 Output Current VO=12.0 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 Current Limit Threshold VO=12.0 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 Short Circuit Surge Transient Ripple and Noise (rms) VO=12.0 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 Ripple and Noise (pk-pk) VO=12.0 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 Turn on Time Overshoot at Turn on Output Capacitance VO=12.0 V VO=5.0 V Vo=3.3 V VO=2.5 V VO=1.8 V Vo=1.5 V Vo=1.2V 0 uF 0 uF 0 uF 0 uF 0 uF 0 uF 0 uF 100 mV 95 mV 55 mV 55 mV 45 mV 45 mV 45 mV 15 mS 0% 130 mV 120 mV 80 mV 80 mV 70 mV 70 mV 70 mV 30 mS 5% 1000 uF 10000 uF 18000 uF 18000 uF 18000 uF 18000 uF 18000 uF 25 mV 25 mV 15 mV 12 mV 10 mV 10 mV 10 mV 50 mV 50 mV 30 mV 25 mV 20 mV 20 mV 20 mV 5.5 A 13.5 A 16 A 16 A 16 A 16 A 16 A 6.5 A 16 A 18 A 18 A 18 A 18 A 18 A 3A s
2
Min
Typ 60 mV 45 mV 30 mV 25 mV 20 mV 15 mV 12 mV -
Max 100 mV 75 mV 50 mV 40 mV 30 mV 25 mV 20mV 5A 12 A 15 A 15 A 15 A 15 A 15 A 8A 19 A 20 A 20 A 20 A 20 A 20 A 5A s
2
Notes
0A 0A 0A 0A 0A 0A 0A
Test conditions: Vin=48 V, Ta=25 C, with a 1uF ceramic capacitor and a 10 uF 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 1.2 V - 3.3 V/15 A, 5 V/12 A, 12 V/5 A Output, 1/8 Brick
Output Specifications (continued)
Parameter Transient Response Overshoot 25% ~ 50% Max Load Settling Time VO=12.0 V Overshoot 50% ~ 25% Max Load Settling Time Overshoot 25% ~ 50% Max Load Settling Time VO=5.0 V Overshoot 50% ~ 25% Max Load Settling Time Overshoot 25% ~ 50% Max Load Settling Time VO=3.3 V Overshoot 50% ~ 25% Max Load Settling Time Overshoot 25% ~ 50% Max Load Settling Time VO=2.5 V Overshoot 50% ~ 25% Max Load Settling Time Overshoot 25% ~ 50% Max Load Settling Time VO=1.8 V - 1.2 V Overshoot 50% ~ 25% Max Load Settling Time Min Typ 300 mV 400 uS 300 mV 400 uS 200 mV 300 uS 200 mV 300 uS 130 mV 150 uS 130 mV 150 uS 130 mV 150 uS 130 mV 150 uS 120 mV 150 uS 120 mV 150 uS Max 400 mV 500 uS 400 mV 500 uS 230 mV 400 uS 230 mV 400 uS 160 mV 200 uS 160 mV 200 uS 160 mV 200 uS 160 mV 200 uS 150 mV 200 uS 150 mV 200 uS Notes
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 25 C unless otherwise stated.
General Specifications
Parameter Efficiency VO=12.0 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 Output Voltage Trim Range Remote Sense Compesation Over Temperature Protection Over Voltage Protection MTBF Dimensions Inches (L x W x H) Millimeters (L x W x H) Weight 2.30 x 0.896 x 0.411 58.42 x 22.86 x 10.45 20 g 88% 88% 87% 85% 83% 82% 80% 270 kHz 80%Vo 91% 91% 89% 87% 85% 84% 82% 300 kHz 1500 pF 125 C 130%Vo 2,410,000 hours 330 kHz 110%Vo 10%Vo Vin=48V, full load, in hiccup mode Calculated Per Bell Core SR-332 (IO = 12 A, Vin=48 V, Vo=3.3 V, Ta = 25 C, No forced air) The total voltage increased by trim and remote sense should not exceed 10%Vo Min Typ Max Notes
Vin=48 V, full load
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 1.2 V - 3.3 V/15 A, 5 V/12 A, 12 V/5 A Output, 1/8 Brick
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 Low Active High -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 0RCY-60TxxL. The remote on/off pin open, Unit off 0RCY-60Txx0. The remote on/off pin open, Unit on Min Typ Max Notes
Output Trim Equations
Equations for calculating the trim resistor (in k) 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 =
511 - 10.22 delta
Module
Vout Trim Rtrimdown GND
1.Vo =12 V-1.5 V
(100 + delta ) Vo 5.11 - 626 Rtrimup = - 10.22 1.225 delta
2. Vo =1.2 V
Vout
Rtrimup =
(100 + delta ) Vo 5.11 - 626 - 10.22 1.225 delta
Rtrimup Module Trim GND
Notes:
delta =
(Vo _ req - Vo ) x 100[% ]
Vo
Vo_req=Desired (trimmed) output voltage [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 V Input 1.2 V - 3.3 V/15 A, 5 V/12 A, 12 V/5 A Output, 1/8 Brick
Efficiency Data
0RCY-60TV2x EFFICIENCY
90% EFFICIENCY 85% 80% 75% 70% 65% 60% 55% 50% 1.5A 0RCY-60TV5x EFFICIENCY
85% 80% 75% 70% 65% 60% 55% 50% 45% 1.5A
EFFICIENCY
36V 48V 75V
36V 48V 75V
3.75A
7.5A
11.25A
15A
3.75A
7.5A
11.25A
15A
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
0RCY-60TV8x EFFICIENCY 90% 85%
0RCY-60T02x EFFICIENCY 90% 85% EFFICIENCY
36V 48V 75V
EFFICIENCY
80% 75% 70% 65% 60% 55% 50% 1.5A 3.75A 7.5A 11.25A 15A OUTPUT CURRENT (A)
80% 75% 70% 65% 60% 55% 1.5A 3.75A 7.5A 11.25A 15A
36V 48V 75V
OUTPUT CURRENT (A)
0RCY-60T03x EFFICIENCY 95% 90% EFFICIENCY
EFFICIENCY
0RCY-60T05x EFFICIENCY 95% 90% 85% 80% 75% 70% 65% 60% 1.2A
85% 80% 75% 70% 65% 60% 1.5A 3.75A 7.5A 11.25A 15A
36V 48V 75V
36V 48V 75V
3.0A
6.0A
9.0A
12.0A
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
0RCY-60T12x EFFICIENCY 95% 90% EFFICIENCY 85% 80% 75% 70% 65% 60% 0.5A 1.25A 2.5A 3.75A 5.0A 36V 48V 75V
OUTPUT CURRENT (A)
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 1.2 V - 3.3 V/15 A, 5 V/12 A, 12 V/5 A Output, 1/8 Brick
Thermal Derating Curves
Vin=48V, with maximum junction temperature of semiconductors derated to 120 degree C.
Vo=1.2 V
Vo=1.5 V
Vo=1.8 V
Vo=2.5 V
Vo=3.3 V
Vo=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 V Input 1.2 V - 3.3 V/15 A, 5 V/12 A, 12 V/5 A Output, 1/8 Brick
Thermal Derating Curves (continued)
Vo=12 V
Thermal Reference
NoteTH1 and TH2 are hot spots which should not exceed 118 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 1.2 V - 3.3 V/15 A, 5 V/12 A, 12 V/5 A Output, 1/8 Brick
Ripple and Noise Waveforms
1.2 V/15 A output.
1.5 V/15 A output
1.8 V/15 A output.
2.5 V/15 A output
3.3 V/15 A output.
5.0 V/12 A output
12 V/5 A output Note: Ripple and noise at full load, 48 V input, and with a 1 uF ceramic cap and a 10 uF tantalum cap at the 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 1.2 V - 3.3 V/15 A, 5 V/12 A, 12 V/5 A Output, 1/8 Brick
Transient Response Waveforms
Vout=1.2 V 50% to 25% Load Transients
Vout=1.2 V 25% to 50% Load Transients
Vout=1.5 V 50% to 25% Load Transients
Vout=1.5 V 25% to 50% Load Transients
Vout=1.8 V 50% to 25% Load Transients
Vout=1.8 V 25% to 50% Load Transients
Vout=2.5 V 50% to 25% Load Transients
Vout=2.5 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 V Input 1.2 V - 3.3 V/15 A, 5 V/12 A, 12 V/5 A Output, 1/8 Brick
Transient Response Waveforms (continued)
Vout=3.3 V 50% to 25% Load Transients
Vout=3.3 V 25% to 50% Load Transients
Vout=5.0 V 50% to 25% Load Transients
Vout=5.0 V 25% to 50% Load Transients
Vout=12 V 50% to 25% Load Transients
Vout=12 V 25% to 50% Load Transients
Note: Transient response is tested at di/dt=0.1 A/uS, external 10 uF tantalum capacitor and 1 uF ceramic capacitor, Vin=48 V, 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 1.2 V - 3.3 V/15 A, 5 V/12 A, 12 V/5 A Output, 1/8 Brick
Mechanical Outline
Pin Connections
Pin 1 2 3 4 5 6 7 8 Function Vin+ Remote On/Off VinVoutSenseTrim Sense+ Vout+
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products.
(c)2005 Bel Fuse Inc. Specifications subject to change without notice. 032906
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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