ISOLATED DC/DC CONVERTERS 18 Vdc - 75 Vdc Input 3.3 Vdc /20 A Output, 1/8 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 16, 2010 0RCY-65U03x RoHS Compliant Rev.F Features • Isolated • Output Over-Voltage Shutdown • High Efficiency • Output Voltage Trim • High Power Density • OCP/SCP • Fixed Frequency (260 kHz) • Over Temperature Protection • Low Cost • Remote On/Off • Input Under-Voltage Lockout • Positive/Negative Remote Sense • Input Over-Voltage Lockout • Basic Insulation • 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 0RCY-65U03x is part of the isolated dc/dc converters that operates from a wide input range (18 Vdc - 75 Vdc) and can cover both 24 Vin and 48 Vin input range. These units will provide up to 66 W of output power. They are 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. These converters are provided in an industry standard 1/8 brick package. Part Selection Output Voltage 3.3 Vdc Input Voltage 18 Vdc - 75 Vdc Max. Output Current 20 A Max. Output Power 66 W Typical Efficiency 90% Model Number Active High 0RCY-65U033 Model Number Active Low 0RCY-65U03L Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging. Part Number Explanation 0 R CY – 65 U 03 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 3.3V 7--- Option, “x” of the model part number to be 0-9, A-Z, which will represent the special request of customer. 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 3.3 Vdc /20 A Output, 1/8 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 16, 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 100 mS 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 Input Current (full load) - 4.3 5.0 A Input Current (no load) - 65 100 mA Remote Off Input Current - 10 15 mA Input Reflected Ripple Current (rms) - 7 10 mA Input Reflected Ripple Current (pk-pk) - 30 50 mA I t Inrush Current Transient - 0.05 0.1 As Turn-on Voltage Threshold 16 16.8 17.5 V Turn-off Voltage Threshold 15 15.8 16.5 V Input Over Voltage Lockout 76 78 80 V 2 Notes Tested 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 at 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 8A on system board. Refer to the fuse manufacture’s datasheet for further information. Notes: 1. This converter has internal C-L-C (0.47uF-1.0uH-0.47uF+2.2uF) filter. 2. For recommended external input filter, please refer to Safety section. 3. All specifications are typical at 25 °C unless otherwise stated. Output Specifications Parameter Output Voltage Set Point Min 3.234 Typ 3.3 Max 3.366 Unit V Load Regulation - ±3.3 ±10 mV Line Regulation - ±3.3 ±10 mV Regulation Over Temperature (-40deg.C-85deg.C) - ±10 ±33 mV Ripple and Noise (pk-pk) - 50 80 mV Ripple and Noise (rms) - 15 25 mV Ripple and Noise (pk-pk) under worst case - - 150 mV Notes Vin=48V, Io=50% load 0-20 MHz BW, with a 1µF ceramic capacitor and a 10uF Tantalum cap at output. over all operating input voltage, load and temperature conditions. 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 3.3 Vdc /20 A Output, 1/8 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 16, 2010 Output Specifications (continued) Parameter Min Typ Max Unit Output Current Range 0 - 20 A Output DC Current Limit 23 - 35 A Short Circuit Surge Transient - 3 5 As Rise Time - 5 - mS 10 15 30 mS Ton(Enable form Vin) 10 20 30 mS Ton(Enable form ON/OFF) Overshoot at Turn on - 0 3 % Output Capacitance 0 - 4800 uF Turn on Time Notes 2 Transient Response △V50%~75% of Overshoot - 150 250 mV Max Load Settling Time - 200 350 uS △V75%~50% of Overshoot - 150 250 mV Max Load Settling Time - 200 350 uS di/dt=0.1A/us, Vin=48Vdc, Ta=25°C, with a 1µF ceramic capacitor and a 10uF Tantalum cap at the output. Note: All specifications are typical at nominal input, full load at 25°C unless otherwise stated. General Specifications Parameter Min 88 Typ 90 Max - Unit % 86 88 - % Switching Frequency 240 260 280 kHz Output Voltage Trim Range 90 - 110 %Vo Over Temperature Protection - 125 - °C Over Voltage Protection(Static) - 4.1 - V Weight - 40 - g Efficiency FIT TBD - 2.30 x 0.90 x 0.50 58.42 x 22.76 x 12.72 - Notes Vin=48V, full load Vin=24V, full load This voltage is achieved by trimming up output slowly Calculated Per Bell Core SR-332 (Vin=48 V, Vo=3.3 V, Io=16 A, 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 3.3 Vdc /20 A Output, 1/8 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 16, 2010 Efficiency Data Efficiency Curve 95.00% Efficiency 90.00% 18V 24V 48V 60V 75V 85.00% 80.00% 75.00% 70.00% 3 6 9 12 15 18 20.0 Output Current (A) Thermal Derating Curves Maximum junction temperature of semiconductors derated to 120 degree C. Derating curve under 18V input Derating curve under 75V input 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 3.3 Vdc /20 A Output, 1/8 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 16, 2010 Thermal Derating Curves (continued) Temperature reference points on top side Temperature reference points 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 5 ISOLATED DC/DC CONVERTERS 18 Vdc - 75 Vdc Input 3.3 Vdc /20 A Output, 1/8 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 16, 2010 Ripple and Noise Waveform . 24 Vdc input, 3.3Vdc/20A output 48 Vdc input, 3.3Vdc/20A output Note: Ripple and Noise at full load, Ta=25°C, with a 1µF ceramic capacitor and a 10uF Tantalum cap at the output. Transient Response Waveforms 50%-75%-50% Load Transients at Vin=24V 50%-75%-50% Load Transients at Vin=48V Note: Transient Response at di/dt=0.1A/uS, Ta=25°C, with 1uF ceramic cap and 10uF 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 6 ISOLATED DC/DC CONVERTERS 18 Vdc - 75 Vdc Input 3.3 Vdc /20 A Output, 1/8 Brick Nov. 16, 2010 Bel Power Inc., a subsidiary of Bel Fuse Inc. Startup & Shutdown Rise Time Vout= 3.3V full load at Vin=24V@Ta=25℃ Vout= 3.3V full load at Vin=48V@Ta=25℃ Startup time Startup from Vin Ch1: Vo, Ch3: Vin Vout= 3.3V full load at Vin=24V@Ta=25℃ Startup from on/off Ch1: Vo, Ch3: on/off Vout= 3.3V full load at Vin=24V@Ta=25℃ 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 3.3 Vdc /20 A Output, 1/8 Brick Nov. 16, 2010 Bel Power Inc., a subsidiary of Bel Fuse Inc. Startup & Shutdown (continued) Startup time (continued) Startup from Vin Ch1: Vo, Ch3: Vin Vout= 3.3V full load at Vin=48V@Ta=25℃ Startup from on/off Ch1: Vo, Ch3: on/off Vout= 3.3V full load at Vin=48V@Ta=25℃ Shutdown Vout= 3.3V full load at Vin=24V@Ta=25℃ Vout= 3.3V full load at Vin=48V@Ta=25℃ 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 3.3 Vdc /20 A Output, 1/8 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 16, 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 0RCY-65U03L. The remote on/off pin open, Unit off. 0RCY-65U033. 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 9 ISOLATED DC/DC CONVERTERS 18 Vdc - 75 Vdc Input 3.3 Vdc /20 A Output, 1/8 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 16, 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 2.97V Maximum trim up voltage is 3.63V. The total voltage increased by trim and remote sense should not exceed 5% of the nominal output voltage. Sense(+) 511 Rtrimdown = − 10.22[kΩ] delta Module Trim Rtrimdown Sense(-) Sense(+) (100 + delta) ⋅Vo ⋅ 5.11 − 626 Rtrimup = − 10.22[kΩ] 1.225 ⋅ delta Rtrimup Module Trim Sense(-) Note: delta = (Vo _ req − Vo ) × 100 [% ] Vo 300 1500 270 1350 240 1200 Trim resistor value,Rtrim_up(KOhm) Trim resistor value Rtrim_down(KOhm) Vo_req=Desired (trimmed) output voltage [V] Output voltage Vo=3.3 V 210 180 150 120 90 60 30 0 2.64 2.71 1050 900 750 600 450 300 150 2.77 2.84 2.9 2.97 3.04 3.1 3.17 3.23 Adjusted output voltage Vo,adj (V) 3.3 0 3.3 3.33 3.37 3.4 3.43 3.46 3.5 3.53 3.56 Adjusted output voltage Vo,adj(V) 3.6 3.63 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 3.3 Vdc /20 A Output, 1/8 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 16, 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+ (30.1 ohm) from Vo+ to Sense+ and a resistor RS- (10.5 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 11 ISOLATED DC/DC CONVERTERS 18 Vdc - 75 Vdc Input 3.3 Vdc /20 A Output, 1/8 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 16, 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 overcurrent 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 5A during hiccup. CH1: Output voltage waveform CH4: output current waveform Test at: 48Vdc input, with a Rout (0.022ohm) Expansion of on time portion of above figure 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 3.3 Vdc /20 A Output, 1/8 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 16, 2010 Over Voltage Protection The output overvoltage 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 400mS. The module operates normally when the fault is cleared. Note: Due to maximum duty cycle limt, output voltage can not be trimed up to OVP set point in low line input. Test setup: Sense+ K Trim R Sense- R=36k ohm CH1: Output voltage 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 3.3 Vdc /20 A Output, 1/8 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 16, 2010 Over Temperature Protection The OTP is achieved by thermistor RT and the threshold is set at 125C in non-latch mode; the hottest component Q1 reaches 125C with 100LFM air flow correspondingly. It will restart automatically when the temperature falls down to 100C. The protecting point will be varied a little under different conditions (air flow, ambient temperature,input voltage, load...). The hottest component on the top side: Q1 The thermistor on the bottom side: RT 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 3.3 Vdc /20 A Output, 1/8 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 16, 2010 Safety & EMC Safety 1. Material flammability 2. UL Certification UL94V-0 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 C4 +Vin T1 C1 C2 C3 Conv.positive input Conv.negative input -V in T1 C5 Item Designator Parameter Vendor Vendor P/N 1 C1 2.2uF/100V,ceramic Murata GRF32ER72A225KA11L 2 C2 47uF/100V, AL cap Nichicon UUJ2A470MNL1MS 3 C3 100uF/100V, AL cap Nichicon UVZ2A101MPD 4 C4 1000pF/2000V,ceramic Johanson 202R18W102KV4E-****-RC 5 C5 1000pF/2000V,ceramic Johanson 202R18W102KV4E-****-RC 6 T1 1.3mH, common mode Pulse P0402NL 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 3.3 Vdc /20 A Output, 1/8 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 16, 2010 Safety & EMC (continued) Positive: Negative: 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 3.3 Vdc /20 A Output, 1/8 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 16, 2010 Mechanical Outline Pin Connections Pin Name Function Pin Dia 0.040’’ Positive input voltage Input to turn converter 2 On/Off 0.040’’ on and off, referenced to Vin3 Vin0.040’’ Negative input voltage 4 VoutNegative output voltage 0.060’’ 5 Sense- Negative remote sense 0.040’’ 6 Trim 0.040’’ Output voltage trim 7 Sense+ Positive output voltage 0.040’’ 8 Vout+ 0.060’’ Positive output voltage Note: 1. Pin 5 must be connected to Vout(-). 2. Leave Pin 6 open for nominal voltage. 3. Pin 7 must be connected to Vout(+). 1 Vin+ 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 3.3 Vdc /20 A Output, 1/8 Brick Bel Power Inc., a subsidiary of Bel Fuse Inc. Nov. 16, 2010 Revision History Date Revision Changes Detail Approval 2008-10-29 A First release. 2009-12-07 B Change to new datasheet format, add OCP, OVP, OTP…etc. XF Jiang 2010-01-12 C Updated outline. XF Jiang 2010-03-10 D Updated thermal derating curves. XF Jiang 2010-03-24 E Add thermal derating curves under 18V input and 75V input. XF Jiang 2010-11-16 F Updated TD curve. XF Jiang Han 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. 111610 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