ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input 14 Vdc /10A Output, 1/4 Brick Converter Bel Power Inc., a subsidiary of Bel Fuse Inc. Oct. 07, 2011 0RQB-C5T14x RoHS Compliant Preliminary • Isolated • Over Temperature Protection • Fixed Frequency (250 kHz) • SCP/OCP • High Efficiency • Low Cost • High Power Density • Remote On/Off • Input Under-Voltage Lockout • Basic Isolation • Input Over-Voltage Lockout • Positive/Negative Remote Sense • Output Over-Voltage Shutdown • Output Voltage Trim • Class 2, Category 2, Isolated DC/DC Converter (refer to IPC-9592) Applications • Networking • Computers and peripherals • Telecommunications Description The 0RQB-C5T14x is an isolated DC/DC converter that operate from a nominal 48V source. This unit will provide up to 140W of output power from a nominal 48V input. This unit is designed to be highly efficient and low cost . Features include remote on/off, over current protection and overvoltage protection. The converter is provided in an industry standard quarter brick package. Part Selection Output Voltage Input Voltage Max. Output Current Max. Output Power Typical Efficiency Model Number Active High Model Number Active Low 14 Vdc 36 Vdc - 75Vdc 10 A 140 W 93.5% 0RQB-C5T140 0RQB-C5T14L Note: Add “G” suffix at the end of the model number to indicate Tray Packaging. Part Number Explanation 0 R QB – C5 T 14 x 1 2 3 4 5 6 7 1---Through hole 2---RoHS 6, change “R” to “7” means RoHS 5 3---Series name 4---Series code 5---Input range (36-75V) 6---Output voltage (14V) 7---Suffix 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 14 Vdc /10A Output, 1/4 Brick Converter Bel Power Inc., a subsidiary of Bel Fuse Inc. Oct. 07, 2011 Absolute Maximum Ratings Parameter Continuous non-operating Input Voltage Input Transient Voltage Remote On/Off I/O Isolation Voltage Min Typ Max Unit -0.3 - 80 V - - 100 V -0.3 - 18 V - - 1500 V Ambient Temperature -40 - 85 °C Storage Temperature -55 - 125 °C Notes 100mS maximum 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) - - 5.0 A Input Current (no load) - 80 120 mA Remote Off Input Current - 10 20 mA Input Reflected Ripple Current (pk-pk) - 35 50 mA Input Reflected Ripple Current (rms) - 10 15 mA - - 1 As 34.5 35.5 V 2 I t Inrush Current Transient Turn-on Voltage Threshold Turn-off Voltage Threshold 32.5 33.5 Notes Vin=36 V With simulated source impedance of 10 uH, 5 Hz to 20 MHz; Use a 1uF/100V ceramic capacitor and a 100uF/100V electrolytic capacitor with ESR=1 ohm max, at 200KHz@25°C. 2 V 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 7A on system board. Refer to the fuse manufacture’s datasheet for further information. Notes: 1. This converter has internal C-L-C (0.47uF-0.47uH-8.8uF) filter. 2. All specifications are typical at 25 °C unless otherwise stated. Output Specifications Parameter Min Typ Max Unit 13.72 14 14.28 V Load Regulation - ±14 ±28 mV Line Regulation - ±14 ±28 mV Regulation Over Temperature (-40deg.C-85deg.C) - ±70 ±140 mV Ripple and Noise (pk-pk) - 120 180 mV Ripple and Noise (rms) - 25 50 mV Output Voltage Set Point Notes Vin=48V, Io=50% load at 25C ambient. 0 - 20 MHz BW, with 1 uF ceramic load capacitor and a 10 uF tantalum capacitor at 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 14 Vdc /10A Output, 1/4 Brick Converter Bel Power Inc., a subsidiary of Bel Fuse Inc. Oct. 07, 2011 Output Specifications (continued) Parameter Output Ripple and Noise(pk-pk) under worst case Output Current Range Output DC Current Limit Min Typ Max Unit 220 mV 10 A 14 A 5 As 12 mS 30 60 mS Enable from Vin 25 50 mS Enable from on/off 0 3 % 680 uF 0 10.5 12 Short Circuit Surge Transient 6 Rise Time Turn on Time Overshoot at Turn on 0 Output Capacitance Notes over all operating input voltage, load and ambient temperature condition 2 Transient Response △V25%~50% of Overshoot - 400 600 mV Max Load Settling Time - 200 300 uS △V50%~25% of Overshoot - 400 600 mV Max Load Settling Time - 200 300 uS di/dt=0.1A/us, Vin=48 Vdc, with a 1 µF ceramic capacitor and a 10 uF Tantalum capacitor at output, Ta=25 °C. Note: All specifications are typical at nominal input, full load at 25°C unless otherwise stated. General Specifications Parameter Min 91.5 Typ 93.5 Max - Unit % Switching Frequency - 250 - kHz Over Temperature Protection - 125 - °C Over Voltage Protection(Static) - 17 - V Weight - 48 - g Efficiency FIT TBD - 2.30 x 1.45 x 0.50 58.42 x 36.83 x 12.69 - Notes Vin=48V, full load, Ta=25°C This voltage is achieved by trimming up output slowly Calculated Per Bell Core SR-332 (Vin=48V, Vo=12V, Io=9.6A, Ta = 25 9 °C, FIT=10 /MTBF) Dimensions Inches (L × W × H) Millimeters (L × W × H) Isolation characteristics Input to Output - - 1500 V Input to Case - - 1500 V Output to Case - - 500 V 10M - - ohm - 3900 - pF Isolation Resistance Isolation Capacitance 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 14 Vdc /10A Output, 1/4 Brick Converter Bel Power Inc., a subsidiary of Bel Fuse Inc. Oct. 07, 2011 Efficiency Data 95.00% 90.00% EFFICIENCY 85.00% 36 V 80.00% 48 V 75V 75.00% 70.00% 1A 2.5A 5A 7.5A 10A 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 14 Vdc /10A Output, 1/4 Brick Converter Bel Power Inc., a subsidiary of Bel Fuse Inc. Oct. 07, 2011 Thermal Derating Curve (continued) Derating curve under 48V input Vin=24V Ripple and Noise Waveform Note: Ripple and noise at full load, 48Vdc input, 14Vdc/10A output and Ta=25 deg C, and with a 1uF ceramic cap and a 10 uF Tantalum cap at output. . 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 14 Vdc /10A Output, 1/4 Brick Converter Bel Power Inc., a subsidiary of Bel Fuse Inc. Oct. 07, 2011 Transients Responses Waveforms Vout= 14V 25%-50% Load Transients at Vin=48V@Ta=25℃ Vout= 14V 50%-25% Load Transients at Vin=48V@Ta=25℃ Note: Transients response at di/dt=0.1 A/us, with a 1 µF ceramic capacitor and a 10 uF tantalum capacitor 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 6 ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input 14 Vdc /10A Output, 1/4 Brick Converter Bel Power Inc., a subsidiary of Bel Fuse Inc. Oct. 07, 2011 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 - 1 mA Notes 0RQB-C5T14L. The remote on/off pin open, Unit off. 0RQB-C5T140. 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 Remote On/Off(continued) 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 Vcc Vin- Control with logic circuit Vin- Permanently on 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 14 Vdc /10A Output, 1/4 Brick Converter Bel Power Inc., a subsidiary of Bel Fuse Inc. Oct. 07, 2011 Output Trim Equations Equations for calculating the trim resistor are shown below. The Trim Down resistor should be connected between the Trim pin and Sense (-) pin. The Trim Up resistor should be connected between the Trim pin and the Sense (+). Only one of the resistors should be used for any given application. Minimum trim down voltage is 12.6V Maximum trim up voltage is 15.4V. The total voltage increased by trim and remote sense should not exceed 10% of the nominal output voltage. Sense(+) Rtrimdown = 511 −10.22[kΩ] delta (100+ delta) ⋅Vo⋅ 5.11− 626 −10.22[kΩ] Rtrimup= 1.225⋅ delta Module Trim Rtrimdown Sense(-) Sense(+) Rtrimup Module Trim Sense(-) Note: delta = (Vo _ req − Vo) × 100[%] Vo Vo_req=Desired (trimmed) output voltage [V] Output voltage Vo=14.000 V 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 14 Vdc /10A Output, 1/4 Brick Converter Bel Power Inc., a subsidiary of Bel Fuse Inc. Oct. 07, 2011 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 10% 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 10% 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 9 ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input 14 Vdc /10A Output, 1/4 Brick Converter Bel Power Inc., a subsidiary of Bel Fuse Inc. Oct. 07, 2011 Over Current Protection To provide protection in a fault output overload condition, the module is equipped with internal current-limiting circuitry and can endure current limiting for a few mili-seconds. If the over-current condition persists beyond a few milliseconds, the module will shut down into hiccup mode and restart once every 400mS. The module operates normally when the output current goes into specified range. The typical average output current is 0.5A during hiccup. Vin=48V Expansion of on time portion Over Voltage Protection The output over voltage protection consists of circuitry that monitors the voltage on the output terminals. If the voltage on the output terminals exceeds the over voltage protection threshold, the module will shutdown into hiccup mode and restart once every 800mS. The module operates normally when the fault is cleared. Test setup: Waveform: R=10K Vo+ K Trim R Vo- Sense+ K Trim R 48Vin,10A Load Sense- CH1: Output voltage waveform CH2: Input voltage waveform CH3: Output Current waveform Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 10 ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input 14 Vdc /10A Output, 1/4 Brick Converter Bel Power Inc., a subsidiary of Bel Fuse Inc. Oct. 07, 2011 Over Temperature Protection The OTP is achieved by thermistor RT1 and the threshold is set at 120C in non-latch mode; the hottest component Q13 reaches 130C with 100LFM air flow correspondingly. It will restart automatically when the temperature falls down to 110C. The protecting point will be varied a little under different conditions (air flow, ambient temperature, input voltage, load...). Input Under-voltage Lockout Input Current Under-voltage Lockout Voltage Falling V1=33.5V V2=34.5V Voltage Rising V1 V2 Input Voltage (V) Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 11 ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input 14 Vdc /10A Output, 1/4 Brick Converter Bel Power Inc., a subsidiary of Bel Fuse Inc. Oct. 07, 2011 Mechanical Outline Pin Connections Pin Function Pin Size 1 2 3 4 5 6 7 8 Vin(+) On/Off Vin(-) Vo(-) Sense(-) TRIM Sense(+) Vo(+) 0.040’’ 0.040’’ 0.040’’ 0.060’’ 0.040’’ 0.040’’ 0.040’’ 0.060’’ 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 12 ISOLATED DC/DC CONVERTERS 36 Vdc - 75 Vdc Input 14 Vdc /10 A Output, 1/4 Brick Converter Bel Power Inc., a subsidiary of Bel Fuse Inc. Oct. 07, 2011 Revision History Date Revision 2011-10-7 PA Changes Detail Approval First release JZ Wang 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.100711 13 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