ISOLATED DC/DC CONVERTERS 18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 19, 2010 0RQB-C5U12x RoHS Compliant Rev.D • Isolated • Over Temperature Protection • Fixed Frequency (260 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 1, Category 2, Isolated DC/DC Converter (refer to IPC-9592) • UL60950-1 Recognized (UL/cUL) (Pending) Applications • Networking • Computers and peripherals • Telecommunications Description The 0RQB-C5U12x is isolated dc/dc converter that operates from a wide input range (18 Vdc - 75 Vdc) and can cover both 24 Vdc and 48 Vdc input range. This unit will provide up to 144 W of output power. This unit is designed to be highly efficient and low cost. Features include remote on/off, over current protection, over voltage shut down, over temperature protection and under voltage lockout. This converter is provided in an industry standard 1/4 brick package. Part Selection Output Voltage Input Voltage Max. Output Current Max. Output Power Typical Efficiency Model Number Active High Model Number Active Low 12 Vdc 18 Vdc - 75Vdc 12 A 144 W 93% 0RQB-C5U120 0RQB-C5U12L Note: Add “G” suffix at the end of the model number to indicate Tray Packaging. Part Number Explanation 0 R QB – C5 U 12 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 (18-75V) 6---Output voltage (12V) 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 18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 19, 2010 Absolute Maximum Ratings Parameter Continuous 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 18 Typ 24/48 Max 75 Unit V - 9.2 - A Vin=18 V - 2.2 - A Vin=75 V Input Current (no load) - 100 130 mA Remote Off Input Current - 30 45 mA Input Reflected Ripple Current (pk-pk) - 40 60 mA Input Reflected Ripple Current (rms) - 10 15 mA I t Inrush Current Transient - - 0.5 As Turn-on Voltage Threshold 16.5 17.0 17.5 V Turn-off Voltage Threshold 15.5 16 16.5 V Input Over Voltage Lockout 76 78 80 V Input Current (full load) 2 Notes 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 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 18A 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 Output Voltage Set Point Min 11.76 Typ 12.0 Max 12.24 Unit V Load Regulation - ±12 ±24 mV Line Regulation - ±12 ±24 mV Regulation Over Temperature (-40deg.C-85deg.C) - ±60 ±100 mV Ripple and Noise (pk-pk) - 100 160 mV Ripple and Noise (rms) - 30 50 mV Notes Vin=48V, Io=50% load 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 18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 19, 2010 Output Specifications (continued) Parameter Output Ripple and Noise(pk-pk) under worst case Min Typ Max Unit Notes over all operating input voltage, load and ambient temperature condition - - 180 mV Output Current Range 0 - 12 A Output DC Current Limit 15 - 20 A Short Circuit Surge Transient - 3 5 As Rise Time 5 - 10 mS - 50 70 mS Enable from Vin - 50 70 mS Enable from on/off Overshoot at Turn on - 0 3 % Output Capacitance 0 - 680 uF 2 Turn on Time 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 Typ 93 Max - Unit % 91 93 - % 240 260 280 kHz Over Temperature Protection - 125 - °C Over Voltage Protection(Static) - 14.5 - V Weight - 48 - g Efficiency Switching Frequency FIT 387 - 2.30 x 1.45 x 0.50 58.42 x 36.83 x 12.69 - Notes Vin=24V, full load Vin=48V, full load 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 - - 1500 Isolation Resistance Isolation Capacitance ohm - pF 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 18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 19, 2010 Efficiency Data Efficiency Curve 1 0.9 0.8 Efficiency 0.7 18V 24V 48V 75V 0.6 0.5 0.4 0.3 0.2 0.1 0 0 1.2 3 6 9 12 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 18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 19, 2010 Thermal Derating Curve (continued) Derating curve under normal input Vin=24V Vin=48V Derating curve under worse case input Vin=75V 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 18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick Aug. 19, 2010 Bel Power Inc., a subsidiary of Bel Fuse Inc. Thermal Derating Curve (continued) Temperature reference points on top side Temperature reference points on bottom side Ripple and Noise Waveform 24 Vdc input, 12 Vdc/12 A output 48 Vdc input, 12 Vdc/12 A output Note: Ripple and noise at full load, 0-20MHz BW, with a 1uF ceramic capacitor and a 10 uF tantalum capacitor at the 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 6 ISOLATED DC/DC CONVERTERS 18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 19, 2010 Transients Responses Waveforms Vin=24V Vin=48V Vout= 12V 25%-50% Load Transients at Ta=25℃ Vin=24V Vin=48V Vout= 12V 50%-25% Load Transients at 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 7 ISOLATED DC/DC CONVERTERS 18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick Aug. 19, 2010 Bel Power Inc., a subsidiary of Bel Fuse Inc. Startup & Shutdown Rise time Vout= 12V/12A at Vin=48V@Ta=25℃ Startup time Startup from Vin Ch1: Vo Ch3: Vin Test Condition: 48Vin, 12A Load Startup from on/off Ch1: Vo Ch3: on/off Test Condition: 48Vin, 12A Load 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 18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 19, 2010 Startup & Shutdown (continued) Shutdown Test Condition: 48Vin,12A Load 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-C5U12L. The remote on/off pin open, Unit off. 0RQB-C5U120. 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 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 18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 19, 2010 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- Vin- Control with logic circuit Permanently on Layout Layout of components on top side Layout of components on bottom side 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 18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 19, 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 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 10.8V Maximum trim up voltage is 13.2V. The total voltage increased by trim and remote sense should not exceed 10% of the nominal output voltage. Sense(+) Rtrimdown = Rtrimup= 511 −10.22[kΩ] delta Module Trim Rtrimdown Sense(-) (100+ delta) ⋅Vo⋅ 5.11− 626 −10.22[kΩ] 1.225⋅ delta Sense(+) Rtrimup Module Trim Sense(-) Note: delta = (Vo _ req − Vo) × 100[%] Vo 400 5000 360 4500 Trim resi stor value,Rtrim_up(KOhm) Trim resi stor value Rtrim_down(KOhm) Vo_req=Desired (trimmed) output voltage [V] Output voltage Vo=12.000 V 320 280 240 200 160 120 80 40 0 4000 3500 3000 2500 2000 1500 1000 500 9.8 10.02 10.24 10.46 10.68 10.9 11.12 11.34 11.56 11.78 Adjusted output voltage Vo,adj (V) 12 0 12 12.12 12.24 12.36 12.48 12.6 12.72 12.84 12.96 13.08 13.2 Adjusted output voltage Vo,adj(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 18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 19, 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 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 12 ISOLATED DC/DC CONVERTERS 18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 19, 2010 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,12A Load Sense- CH1: Output voltage waveform CH2: 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 13 ISOLATED DC/DC CONVERTERS 18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 19, 2010 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=16V V2=17V 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 14 ISOLATED DC/DC CONVERTERS 18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 19, 2010 Safety & EMC Safety 1. Material flammability 2. TUV Certification 3. UL Certification UL94V-0 EN60950-1 UL60950-1 EMC 1. Surge IEC61000-4-5 2. DC-DIP IEC61000-4-29 3. Conductive EMI EN55022 class A Compliance to EN55022 class A (both q.peak and average) with the following inductive and capacitive filter Setup: CY12 CY22 CY32 CY42 RY22 RY32 RY42 RY12 T1A CX1 +Vout 4 3 4 3 +Vin T2A CX2 CX3 Test module CX4 -Vin -Vout 2 1 2 1 RY11 RY21 RY31 RY41 CY11 CY21 CY31 CY41 Item Designator Parameter Vendor Vendor P/N 1 CX1,CX2 2.2uF/100V,ceramic Murata GRF32ER72A225KA11L 2 C3X 100uF/100V, AL cap Nichicon UVZ2A101MPD 3 RY21,RY22 0R,0805 SEI 4 CY21,CY22 6800pF/2000V,ceramic Johanson 5 RY31,RY32 51R,0805 SEI 6 CY31,CY32 1500pF/2000V,ceramic Johanson 7 RY41,RY42 0R,0805 SEI 8 CY41,CY42 1500pF/2000V,ceramic Johanson 9 T1A 1.0mH, common mode 10 T2A 2.2mH,common mode 202R29W682KV4E 302R29W152KV4E 302R29W152KV4E Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 15 ISOLATED DC/DC CONVERTERS 18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 19, 2010 Safety & EMC (continued) Positive Negative Fundamental Circuit Diagram 1 8 4 Driver Driver 7 3 Controller 2 Choke Capacitor Isolated Feedback 5 6 Resistor Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 16 ISOLATED DC/DC CONVERTERS 18 Vdc - 75 Vdc Input 12 Vdc /12 A Output, 1/4 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 19, 2010 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 17 ISOLATED DC/DC CONVERTERS 18 Vdc - 75 Vdc Input 12 Vdc /17 A Output, 1/4 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Aug. 19, 2010 Revision History Date Revision 2008-06-24 PA 2009-03-10 Changes Detail Approval First release JZ Wang B Updated MD, TR, NR and Efficiency, add TD JZ Wang 2009-12-29 C Update outline and MD JZ Wang 2010-08-19 D Add Shutup&Shutdown, Remote on/off, Layout, Remote sense, OCP, OVP, OTP, UVLO, Safety&EMC and Fundamental circuit diagram. 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. 081910 18 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