ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, 12 Vdc/25 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Jan. 14, 2010 0RQ1-T0T12x RoHS Compliant Rev.C Features • Isolated • Output Over Voltage Shutdown • High Efficiency • Output Voltage Trim • Fixed Frequency (270 kHz) • Over Temperature Protection • High Power Density • SCP/OCP • Input Under Voltage Lockout • Low Cost • Input Over Voltage Lockout • Basic Insulation • Positive/Negative Remote Sense • Remote On/Off • Class 1, Category 2, Isolated DC/DC Converter (refer to IPC-9592) • TUV EN60950-1 Recognized (Pending) • UL60950-1 Recognized (UL/cUL) (Pending) Applications • Networking • Computers and peripherals • Telecommunications Description The 0RQ1-T0T12x are isolated dc/dc converters that operate from a nominal 48 Vdc source. These units will provide up to 300 W 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 quarter brick package. Part Selection Output Voltage Input Voltage 12 Vdc 36 Vdc - 75 Vdc Max. Output Current 25 A Max. Output Power 300 W Typical Efficiency 95% Model Number Active Low 0RQ1-T0T12L Model Number Active High 0RQ1-T0T120 Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging. Part Number Explanation 0 R Q1 – T0 T 12 L 1 2 3 4 5 6 7 1---Through hole mount 2---RoHS 6, change “R” to “7” means RoHS 5 3---Series name, 1/4 brick 4---Series code 5---Input range (36-75V) 6---Output voltage (12V) 7---Enable, active low, change “L” to “0” means active high Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 1 ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, 12 Vdc/25 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Jan. 14, 2010 Absolute Maximum Ratings Parameter Continuous non-operating Input Voltage Min Typ Max Unit -0.3 - 80 V Remote On/Off -0.3 - 18 V - - 2250 V I/O Isolation Voltage Ambient Temperature -40 - 85 °C Storage Temperature -55 - 125 °C Notes Note: Ratings used beyond the maximum ratings may cause a reliability degradation of the converter or may permanently damage the device. Input Specifications Parameter Operating Input Voltage Min 36 Typ 48 Max 75 Unit V Input Current (full load) - - 10 A Input Current (no load) - 90 - mA Remote Off Input Current - 10 - mA Input Reflected Ripple Current (rms) - 15 - mA Input Reflected Ripple Current (pk-pk) - 50 - mA - TBD - As Turn-on Voltage Threshold - 34.5 35.5 V Turn-off Voltage Threshold 32.5 34 - V 2 I t Inrush Current Transient Notes 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. 2 CAUTION: This converter is not internally fused. An input line fuse must be used in application. Recommend a fast-acting fuse with maximum rating of 14A on system board. Refer to the fuse manufacture’s datasheet for further information. Note: All specifications are typical at 25 °C unless otherwise stated. Output Specifications Parameter Min Typ Max Unit 11.76 12 12.24 V Load Regulation - ±30 ±60 mV Line Regulation - ±12 ±24 mV Regulation Over Temperature (-40deg.C-85deg.C) - ±60 ±100 mV Ripple and Noise (pk-pk) - 50 100 mV Ripple and Noise (rms) - 20 50 mV Output Current Range 0 - 25 A Output DC Current Limit 26 32 38 A Output Voltage Set Point Notes Vin=48 V, Io=50%Load 0 - 20 MHz BW, with 1 uF ceramic load 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 2 ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, 12 Vdc/25 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Jan. 14, 2010 Output Specifications (continued) Min Typ Max Unit Short Circuit Surge Transient Parameter - TBD - As Turn on Time - 80 120 mS Overshoot at Turn on - 0 3 % Output Capacitance 0 - 5600 uF Transient Response △V Overshoot 50%~75% of Max Load Settling Time △V 75%~50% of Max Load Overshoot Vo= 12 V Settling Time Notes 2 - - 600 mV - - 300 uS - - 600 mV - - 300 uS di/dt=0.1A/us, Vin=48Vdc, Ta=25 °C, with 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 otherwise stated. General Specifications Parameter Min Typ Max Unit 94 95 - % Switching Frequency - 270 - kHz Isolation Capacitance - 2200 - pF Over Temperature Protection - 125 - ℃ Over Voltage Protection - 14 - V 80 - 105 %Vo,set Remote Sense Compensation - - 5 %Vo,set Weight - 71 - g Efficiency Output Voltage Trim Range FIT TBD - 2.30 x 1.45 x 0.50 58.42 x 36.83 x 12.70 - Notes Vin=48 V, full load. The total voltage increased by trim and remote sense should not exceed 5%Vo. Calculated Per Bell Core SR-332 (Vin=48 V, Vo=12 V, Io=20 A, Ta = 9 25 °C, FIT=10 /MTBF) Dimensions Inches (L × W × H) Millimeters (L × W × H) 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 3 ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, 12 Vdc/25 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Jan. 14, 2010 Efficiency Data 98.00% EFFICIENCY 96.00% 94.00% 92.00% 90.00% 36 V 48 V 88.00% 86.00% 75 V 84.00% 82.00% 80.00% 2.50 6.25 12.50 18.75 25.00 OUTPUT CURRENT(A) Thermal Derating Curve Maximum junction temperature of semiconductors derated to 120 degree C. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 4 ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, 12 Vdc/25 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Jan. 14, 2010 Ripple and Noise Waveform 48 Vdc input, 12 Vdc/25 A output Note: Ripple and noise at full load, with a 1uF ceramic cap and a 10 uF Tantalum cap at output, Ta=25 deg C. Transient Response Waveforms 50%-75% Load Transients at Vin=48 V 75%-50% Load Transients at Vin=48 V Note: Transient response at di/dt=0.1A/us, with a 1uF ceramic cap and a 10uF 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 5 ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, 12 Vdc/25 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Jan. 14, 2010 Remote On/Off Parameter Signal Low (Unit On) Signal High (Unit Off) Signal Low (Unit Off) Signal High (Unit On) Active Low Active High Current Sink Min -0.3 Typ - Max 0.8 Unit V 2.4 - 18 V -0.3 - 0.8 V 2.4 - 18 V 0 - 0.75 mA Notes The remote on/off pin open, Unit off. The remote on/off pin open, Unit on. Recommended remote on/off circuit for active low Vin+ Vin+ On/off On/off Vin- Vin- Control with open collector/drain circuit Control with photocoupler circuit Vin+ Vin+ On/off On/off Vin- Vin- Vcc Control with logic circuit Permanently on Recommended remote on/off circuit for active high Vin+ Vin+ On/off On/off Vin- Vin- Control with open collector/drain circuit Control with photocoupler circuit Vin+ Vin+ On/off On/off Vin- Vin- Vcc Control with logic circuit Permanently on Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 6 ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, 12 Vdc/25 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Jan. 14, 2010 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. Minimum trim down voltage is 9.6V Maximum trim up voltage is 12.6V. The total voltage increased by trim and remote sense should not exceed 5% of the nominal output voltage. Rtrimdown = 511 − 10.22[kΩ] delta Vout Module Trim GND Rtrimup = (100 + delta ) ⋅ Vo ⋅ 5.11 − 626 − 10.22[kΩ] 1.225 ⋅ delta Rtrimdown Vout Module Trim Rtrimup GND Note: delta = (Vo _ req − Vo ) × 100 [% ] Vo Vo_req=Desired (trimmed) output voltage [V] Output voltage 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 7 ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, 12 Vdc/25 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Jan. 14, 2010 Remote Sense This module has remote sense compensation feature. It can minimize the effects of resistance between module’s output and load in system layout and facilitates accurate voltage regulation at load terminals or other selected point. 1. The remote sense lines carries very little current and hence do not require a large cross-sectional area. 2. This module compensates for a maximum drop of 5% of the nominal output voltage. 3. If the unit is already trimmed up, the available remote sense compensation range should be correspondingly reduced. The total voltage increased by trim and remote sense should not exceed 5% of the nominal output voltage. 4. When using remote sense compensation, all the resistance, parasitic inductance and capacitance of the system are incorporated within the feedback loop of this module. It can make an effect on the module's compensation, affecting the stability and dynamic response. A 0.1uF ceramic capacitor can be connected at the point of load to de-couple noise on the sense wires. 5. Recommend the connection of remote sense compensation as below figure. There are a resistor RS+ (100 ohm) from Vo+ to Sense+ and a resistor RS- (51 ohm)) from Vo- to Sense- inside of this module. RS+ Vo+ Sense+ Load RS- Sense- V o- 6. If not using remote sense compensation, please connect sense directly to output at module's pin, that is, connect sense+ to Vo+ and sense- to Vo- at module's pin, the shorter the better. See below figure. RS+ V o+ Sense+ Load RS- Sense- Vo- Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 8 ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, Jan. 14, 2010 12 Vdc/25 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Mechanical Outline Pin Connections pin# 1 2 3 4 5 6 7 8 function Vin (+) On/Off Vin (-) Vo (-) RS (-) Trim RS (+) Vo (+) pin size 0.04" 0.04" 0.04" 0.06" 0.04" 0.04" 0.04" 0.06" Note: This module is recommended and compatible with Pb-Free Wave Soldering and must be soldered using a peak solder temperature of no more than 260 ºC for less than 5 seconds. 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 (mm); Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm) x.xxx +/-0.010 in. (x.xx +/-0.25mm). Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 9 ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input, 12 Vdc/25 A Output Bel Power Inc., a subsidiary of Bel Fuse Inc. Jan. 14, 2010 Revision History Date Version Changes Detail Approval 2008-10-17 A First release HL 2009-4-16 B 1. Change to new format; 2. Update the I/O isolation voltage, min efficiency and output DC current limit. HL 2010-1-14 C Remove”Preliminary” Jack 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. 011410 10 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