0RQB-Q8S120

ISOLATED DC/DC CONVERTERS 38 Vdc - 55 Vdc Input, 12 Vdc/40 A Output Aug. 19, 2011 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. RoHS Compliant      0RQB-Q8S12x Features       Isolated High Efficiency PRELIMINARY Rev.B Input Under-voltage Protection Output Over-voltage Protection OCP/SCP Over Temperature Protection Remote ON/OFF Fixed Frequency (300 KHz) High Power Density Low Cost Class 2, Category 2, Isolated DC/DC Converter (refer to IPC-9592) Applications    Networking Computers and peripherals Telecommunications Description The 0RQB-Q8S12x is an isolated dc/dc converter that operates from a nominal 50 Vdc source. This converter is intended to provide isolation and step down to generate a regulated intermediate bus for the purpose of powering non-isolated Point-of-Load (POL) converters. This unit will provide up to 480 W of output power from a nominal 50 Vdc input. Part Selection Output Voltage 12 Vdc Input Voltage 38 Vdc - 55 Vdc Max. Output Current 40 A Max. Output Power 480 W Typical Efficiency 96.7% Model Number Active Low 0RQB-Q8S12L Model Number Active High 0RQB-Q8S120 Notes: Add “G” suffix at the end of the model number to indicate Tray Packaging. Part Number Explanation 0 R QB – Q8 S 12 x 12 3 4 5 67 1---Through hole mount 2---RoHS 6, change “R” to “7” means RoHS 5 3---Series name 4---Series code 5---Input range (38-55V) 6---Output voltage (12V) 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 38 Vdc - 55 Vdc Input, 12 Vdc/40 A Output Aug. 19, 2011 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Min -0.3 -0.3 -40 -55 Typ Max 60 10 85 125 Unit V V C C Notes Absolute Maximum Ratings Parameter Continuous non-operating Input Voltage Remote On/Off Ambient Temperature Storage Temperature 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 Input Current (full load) Input Current (no load) Remote Off Input Current 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 38 34 32 Typ 50 140 4 450 1.6 35.5 33.5 Max 55 12.5 200 8 600 2.4 1 37 35 Unit V A mA mA mA A As V V 2 Notes 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 20A 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 Output Voltage Set Point Vin＞49V Vin≤49V Load Regulation Vin=38-49V Vin=49-55V Line Regulation Vin=38-49V Vin=49-55V Output Ripple and Noise (pk-pk) Output Ripple and Noise (rms) Ripple and Noise (pk-pk) under worst case Output Current Range Vin=38V Vin=48V Vin=55V Min 0 0 0 Typ 12 Vin 4 Max 0.7 50 3.5 40 150 30 200 40 40 40 Unit V V V mV V mV mV mV mV A A A Notes Please see the figure about Vo set point below. Io=0~100% load 0.4 30 2.7 25 50 10 - Io=100% load Vin=50V, Io=100%load, 0-20MHz BW, with a 1µF ceramic capacitor and a 10uF TAN cap at output. Over all operating input voltage, load and ambient temperature condition. 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 38 Vdc - 55 Vdc Input, 12 Vdc/40 A Output Aug. 19, 2011 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Min 48 Typ 52 30 30 0 Max 56 2 15 35 35 3 6000 Unit A As mS mS mS % uF Enable from Vin Enable from ON/OFF 2 Output Specifications (continued) Parameter Output DC Current Limit Short Circuit Surge Transient Rise time Turn on Time Overshoot at Turn on Output Capacitance Transient Response △V Overshoot 50%~75% of Max Load Settling Time △V 75%~50% of Max Load Notes Vin=50V 0 Vo= 12 V - 250 100 250 100 350 200 350 200 mV uS mV uS di/dt=1A/us, Vin=50Vdc, Ta=25°C, with a 1µF ceramic capacitor and a 100uF AL. cap at output. Overshoot Settling Time Note: All specifications are typical at nominal input, full load at 25°C unless otherwise stated. Vo vs Vin 12.5 12 11.5 11 Vout(V) 10.5 10 9.5 9 8.5 38 39 40 41 42 43 44 45 Vin(V) 46 47 48 49 50 52 55 0A 20A 40A 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 38 Vdc - 55 Vdc Input, 12 Vdc/40 A Output Aug. 19, 2011 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. General Specifications Parameter Efficiency Switching Frequency Over Temperature Protection Over Voltage Protection Weight FIT Isolation characteristics Input to Output Isolation Resistance Isolation Capacitance 10M 2700 1500 V Ohm pF Min 94.7 280 Typ 96.7 300 125 65 161 Max 320 14 Unit % kHz ℃ V g Calculated Per Bell Core SR-332 (Vin=50 V, Vo=12 V, Io=32 A, Ta = 9 25C, FIT=10 /MTBF) Notes Vin=50V, full load Note: All specifications are typical at 25 C unless otherwise stated. Efficiency Data 0.98 0.96 0.94 E F F IC IE N C Y 0.92 0.9 0.88 0.86 0.84 0.82 0.8 5A 10A 20A 30A 40A OUTPUT CURRENT(A) 38V 48V 55 V 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 38 Vdc - 55 Vdc Input, 12 Vdc/40 A Output Aug. 19, 2011 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Remote On/Off Parameter 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 2.4 -0.3 2.4 0 Typ Max 0.8 10 0.8 10 0.3 Unit V V V V mA Notes 0RQB-Q8S12L The remote on/off pin open, Unit off. 0RQB-Q8S120 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 Vin + Vcc Control with photocoupler circuit Vin+ On/off On/ off Vin - Vin- Control with logic circuit Recommended remote on/off circuit for active high Vin+ Permanently on Vin+ On/off On/off Vin- Vin- Control with open collector/drain circuit Vin + Vcc Control with photocoupler circuit Vin+ On/off On/ off Vin - Vin- 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 5 ISOLATED DC/DC CONVERTERS 38 Vdc - 55 Vdc Input, 12 Vdc/40 A Output Aug. 19, 2011 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. 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 3.8A during hiccup. CH1: Output Voltage CH2: Output Current W aveform Test condition: Vin=50V CH1: Output Voltage CH2: Output Current W aveform Expansion of on time portion of above figure Ripple and Noise Waveform 50Vdc input, 12Vdc/40A output Note: Ripple and noise at full load, with a 1uF ceramic cap and a 10uF Tan cap at 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 38 Vdc - 55 Vdc Input, 12 Vdc/40 A Output Aug. 19, 2011 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Input Under-voltage Lockout Inp ut Current Under- voltage Lockout Voltage Falling V1=33.5V V2=35.5V Voltage Rising V1 V2 Input Voltage ( V) Transient Response Waveforms Vin= 50V 50%-75% Load Transients Vin= 50V 75%-50% Load Transients Note: Transient Response at di/dt=1A/uS, with a 1µF ceramic capacitor and a 100uF AL. cap at 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 38 Vdc - 55 Vdc Input, 12 Vdc/40 A Output Aug. 19, 2011 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Thermal Derating Curve Maximum junction temperature of semiconductors derated to 120 degree C. AIR FLOW Bottom view The OTP is achieved by temperature sensor U10 and it is in non-latch mode when the hottest component Q9 reaches 125C with 200LFM air flow correspondingly. It will restart automatically when the temperature falls down to 105C. The protecting point will be varied a little under different conditions (air flow, ambient temperature, input voltage, load...). 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 8 ISOLATED DC/DC CONVERTERS 38 Vdc - 55 Vdc Input, 12 Vdc/40 A Output Aug. 19, 2011 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Mechanical Outline Pin 1 2 3 4 5 Function Vin(+) Remote Vin(-) Vout(-) Vout(+) Dia. 0.04’’ 0.04’’ 0.04’’ 0.06’’ 0.06’’ Length 0.145’’ 0.145’’ 0.145’’ 0.145’’ 0.145’’ 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 38 Vdc - 55 Vdc Input, 12 Vdc/40 A Output Jul. 7, 2011 Bel Power, Inc. , a subsidiary of Bel Fuse, Inc. Revision History Date 2011-07-07 2011-08-19 Revision PA PB First release Changes Detail Approval YF Sun XJ Sun Updated mechanical outline RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. 2011 Bel Fuse Inc. Specifications subject to change without notice. 081911 10 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