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ISOLATED DC/DC CONVERTERS
18 Vdc - 36 Vdc Input 12 Vdc /10 A, 3.3 Vdc/30 A Outputs
0RCY-80Rxxx
* * * * * * *
RoHS Compliant
* * * * * *
Rev. E
Isolated High Efficiency High Power Density Fixed Frequency (300 kHz) Input Under-Voltage Lockout Output Over-Voltage Shutdown Basic Insulation
Low Cost OCP/SCP Over Temperature Protection Output Voltage Trim Remote On/Off Positive/Negative Remote Sense
Description
The 0RCY-80Rxxx series are isolated dc/dc converters that operate from a nominal 24 Vdc source. These units will provide up to 120 W of output power and 30 A of output current from a nominal 24 Vdc input. The unit is designed to be highly efficient and low cost. Features include remote on/off, over current protection and undervoltage lockout. This converter is provided in an industry standard eighth brick package.
Part Selection
Output Voltage 1.8 Vdc 3.3 Vdc 12 Vdc Input Voltage 18 Vdc - 36 Vdc 18 Vdc - 36 Vdc 18 Vdc - 36 Vdc Max. Output Current 30 A 30 A 10 A Max. Output Power 54 W 99 W 120 W Typical Efficiency 90% 91% 93% Model Number Active High 0RCY-80RV80 0RCY-80R033 0RCY-80R120 Model Number Active Low 0RCY-80RV8L 0RCY-80R03L 0RCY-80R12L
Notes: 1. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers. 2. Add "G" suffix at the end of the model numbers 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 1500 V -40 C -55 C Typ Max 40 V 18 V 85 C 125 C Notes
Input Specifications
Parameter Input Voltage Input Current (full load) Vo=1.8 V Vo=3.3 V Vo=12 V Input Current (no load) Remote Off Input Current 100 mA 10 mA 3.5 A 6.2 A 8.0 A 280 mA 15 mA Min 18 V Typ 24 V Max 36 V 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
18 Vdc - 36 Vdc Input 12 Vdc /10 A, 3.3 Vdc/30 A Outputs
Input Specifications (continued)
Parameter 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
Typ 5 mA
Max 10 mA 40 mA 0.5 A s 17 V 16.2 V
2
16 V 15 V
25 mA 0.1 A s 16.5 V 15.5 V
2
Notes Tested with simulated source impedance of 10 uH, 5 Hz to 20 MHz; use a 100 uF/100 V electrolytic cap with ESR = 1 ohm max. at 200 kHz at 25 C.
Note: All specifications are typical at 25 C unless otherwise stated.
Output Specifications
Parameter Output Voltage Set Point Vo=1.8 V Vo=3.3 V Vo=12 V Load Regulation Vo=1.8 V Vo=3.3 V Vo=12 V line Regulation Vo=1.8 V Vo=3.3 V Vo=12 V Regulation Over Temperature (-40deg.C ~ +85deg.C) Vo=1.8 V Vo=3.3 V Vo=12 V Ripple and Noise (rms) Vo=1.8 V Vo=3.3 V Vo=12 V Ripple and Noise (pk-pk) Vo=1.8 V Vo=3.3 V Vo=12 V Output Current Range Vo=1.8 V Vo=3.3 V Vo=12 V Output DC Current Limit Vo=1.8 V Vo=3.3 V Vo=12 V Short Circuit Surge Transient Turn on Time Overshoot at Turn on Output Capacitance Vo=1.8 V Vo=3.3 V Vo=12 V 0 uF 0 uF 0 uF 20000 uF 10000 uF 1500 uF Min 1.773 V 3.250 V 11.76 V Typ 1.80 V 3.30 V 12.0 V 6 mV 8 mV 12 mV 6 mV 8 mV 12 mV Max 1.827 V 3.350 V 12.24 V 12 mV 16 mV 24 mV 12 mV 16 mV 24 mV Notes Vin=24 V, Io=50% load
0A 0A 0A 33 A 33 A 11 A -
15 mV 20 mV 30 mV 30 mV 30 mV 30 mV 60 mV 80 mV 100 mV 39 A 39 A 13 A 2A s 60 mS 0%
2
30 mV 40 mV 60 mV 50 mV 50 mV 50 mV 100 mV 120 mV 150 mV 30 A 30 A 10 A 45 A 45 A 15 A 4A s 100 mS 5%
2
0-20 MHz BW, with a 1 F ceramic cap and a 10 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
18 Vdc - 36 Vdc Input
Parameter Transient Response 50% ~ 75% Max Load 75% ~ 50% Max Load 50% ~ 75% Max Load 75% ~ 50% Max Load 50% ~ 75% Max Load 75% ~ 50% Max Load Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time
12 Vdc /10 A, 3.3 Vdc/30 A
Min Typ
Outputs
Max 140 mV 150 uS 140 mV 150 uS 200 mV 200 uS 200 mV 200 uS 350 mV 200 uS 350 mV 200 uS 180 mV 250 uS 180 mV 250 uS 300 mV 300 uS 300 mV 300 uS 500 mV 300 uS 500 mV 300 uS Notes
Output Specifications (continued)
Vo=1.8 V
Vo=3.3 V
di/dt=0.1 A/us, Vin=24 Vdc, Ta=25 C, with a 1 F ceramic cap and a 10 uF tantalum cap at output.
Vo=12 V
Note: All specifications are typical at nominal input, full load at 25C unless noted.
General Specifications
Parameter Efficiency Vo=1.8 V Vo=3.3 V Vo=12 V Switching Frequency Isolation capacitance Remote Sense Compensation Output Voltage Trim Range Over Temperature Protection Over Voltage Protection MTBF Dimensions Inches (L x W x H) Millimeters (L x W x H) Dimensions Inches (L x W x H) Millimeters (L x W x H) Weight 2.30 x 0.896 x 0.50 58.42 x 22.76 x 12.70 2.30 x 0.90 x 0.50 58.42 x 22.91 x 12.70 TBD 0RCY-80RV8x 88% 90% 91% 270 kHz 80% 90% 91% 93% 300 kHz 3900 pF 125 C 125%Vo TBD 330 kHz 10% 110% Vin=24 V, full load, in Hiccup mode. Calculated Per Bell Core SR-332 (Io=80%load, Ta = 25 C) The total voltage increased by trim and remote sense should not exceed 10%Vo. Vin=24 V, full load Min Typ Max Notes
0RCY-80R03x & 0RCY-80R12x
Note: All specifications are typical at 25 C unless otherwise stated.
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 Min -0.3 V 2.4 V -0.3 V 2.4 V 0 mA Typ Max 0.8 V 18 V 0.8 V 18 V 1 mA Notes The remote on/off pin open, Unit off. The remote on/off pin open, Unit 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
18 Vdc - 36 Vdc Input 12 Vdc /10 A, 3.3 Vdc/30 A Outputs
Output Trim Equations
Equations for calculating the trim resistor are shown below. The Trim Down resistor should be connected between the Trim pin and GND pin. The Trim Up resistor should be connected between the Trim pin and the Vout pin. Only one of the resistors should be used for any given application.
511 Rtrimdown = - 10.22[k] delta
Vout Module Trim GND Rtrimdown
Rtrimup =
(100 + delta) Vo 5.11 - 626 - 10.22[k ] 1 .225 delta
Vout Module Trim GND Rtrimup
Note:
delta =
(Vo _ req - Vo ) x 100 [% ]
Vo
Vo_req=Desired (trimmed) output voltage [V] For 0RCY-80RV8x, Output voltage Vo=1.8 V; For 0RCY-80R03x, Output voltage Vo=3.3 V; For 0RCY-80R12x, Output voltage Vo=12 V;
Efficiency Data
Efficiency Curve 92% 88% 84% Efficiency 80% 76% 72% 68% 64% 60% 3.00 18 V
Efficiency Curve 94% 92% 90% 88% 86% 84% 82% 80% 78% 76% 74% 72% 70% 1.00
18 V 24 V 36 V
Efficiency
24 V 36 V
7.50
15.00
22.50
30.00
2.50
5.00
7.50
10.00
Output Current (A)
Output Current (A)
Vo=1.8 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
18 Vdc - 36 Vdc Input 12 Vdc /10 A, 3.3 Vdc/30 A Outputs
Thermal Derating Curves
Vo=1.8 V
Vo=12 V
Note: Vin=24 V, with maximum junction temperature of semiconductors derated to 120 degree C.
Ripple and Noise Waveforms
24 Vdc input, 1.8 Vdc/30 A output
24 Vdc input, 12 Vdc/10 A output
Note: Ripple and noise at full load, with a 1uF ceramic cap and a 10 uF Tantalum 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
ISOLATED DC/DC CONVERTERS
18 Vdc - 36 Vdc Input 12 Vdc /10 A, 3.3 Vdc/30 A Outputs
Transient Response Waveforms
Vo=1.8 V 75% to 50% Load Transients
Vo=1.8 V 50% to 75% Load Transients
Vo=12 V 75% to 50% Load Transients
Vo=12 V 50% to 75% Load Transients
Note: Transients Response at di/dt=0.1 A/us, with a 10 uF Tantalum Cap and 1uF Ceramic 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
ISOLATED DC/DC CONVERTERS
18 Vdc - 36 Vdc Input 12 Vdc /10 A, 3.3 Vdc/30 A Outputs
Mechanical Outline
0RCY-80RV8x
Pin Connections
Pin 1 2 3 4 5 6 7 8 Name Vin+ RC VinVoutRSTrim RS+ Vout+ Pin Dia 0.040'' 0.040'' 0.040'' 0.060'' 0.040'' 0.040'' 0.040'' 0.060''
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
18 Vdc - 36 Vdc Input 12 Vdc /10 A, 3.3 Vdc/30 A Outputs
Mechanical Outline
0RCY-80R03x & 0RCY-80R12x
Pin Connections
Pin 1 2 3 4 5 6 7 8 Name Vin+ RC VinVoutRSTrim RS+ Vout+ Pin Dia 0.040'' 0.040'' 0.040'' 0.060'' 0.040'' 0.040'' 0.040'' 0.060''
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products.
(c)2008 Bel Fuse Inc. Specifications subject to change without notice. 122908
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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