0RSB-40U05B

ISOLATED DC/DC CONVERTERS 18 Vdc - 75 Vdc Input 5 Vdc / 8 A Output, 1/16 Brick May 24, 2011 Bel Power Inc., a subsidiary of Bel Fuse Inc. RoHS Compliant PRELIMINARY Rev.A 0RSB-40U05B Features          Isolated Fixed Frequency High Efficiency        Input Under Voltage Lockout Output Over Voltage Shutdown OCP/SCP Over Temperature Protection Positive/Negative Remote Sense Remote On/Off Through Hole High Power Density Low Cost Output Voltage Trim Basic Insulation Class 2, Category 2, Isolated DC/DC Converter (refer to IPC-9592) UL60950-1 Recognized (UL/cUL) (Pending) Applications    Networking Computers and peripherals Telecommunications Description The 0RSB-40U05B is an isolated dc/dc converter that operates from a nominal 24 Vdc or 48 Vdc source. The unit will provide up to 40 W of output power from an 18-75 Vdc wide input range. The unit is designed to be highly efficient and low cost. Features include remote on/off, over current protection and under voltage lockout. This converter is provided in an industry standard sixteenth brick package. Part Selection Output Voltage 5.0 Vdc Input Voltage 18 Vdc - 75 Vdc Max. Output Current 8A Max. Output Power 40 W Typical Efficiency 87% Model Number Active Low 0RSB-40U05B Note: Add “G” suffix at the end of the model number to indicate Tray Packaging. Part Number Explanation 0 R SB – 40 U 05 B 12 3 4 5 67 1---Through hole 2---RoHS 6, change “R” to “7” means RoHS 5 3---Series name, 1/16 Brick 4---Series code 5---Input range (18-75V) 6---Output voltage (5V) 7---Enable, active low, pin length is 0.11 inch 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 5 Vdc / 8 A Output, 1/16 Brick May 24, 2011 Bel Power Inc., a subsidiary of Bel Fuse Inc. Min -0.3 -0.3 -40 -55 Typ Max 80 100 18 1500 85 125 Unit V V V V C C 100mS maximum Notes Absolute Maximum Ratings Parameter Input Voltage (continuous) Input Transient Voltage Remote On/Off I/O Isolation Voltage 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 Input Voltage Input Current (full load) Input Current (no load) Remote Off Input Current Input Reflected Ripple Current (pk-pk) Input Reflected Ripple Current (rms) Input Over Voltage Lockout I t Inrush Current Transient Turn-on Voltage Threshold Turn-off Voltage Threshold 2 Min 18 78 16.6 16.2 Typ 48 60 1 20 3 0.01 17.2 16.8 Max 75 3.5 120 3 50 7 82 0.02 17.8 17.4 Unit V A mA mA mA mA V As V V 2 Notes With simulated source impedance of 10uH, 5Hz to 20MHz. Use a 100uF/100V electrolytic capacitor with ESR=1 ohm max, at 200KHz@25°C. Note: All specifications are typical at nominal input, full load at 25 C unless otherwise stated. Output Specifications Parameter Output Voltage Set Point Load Regulation Line Regulation Regulation Over Temperature(-40 C to +85 C) Total Regulation Ripple and Noise (pk-pk) Ripple and Noise (rms) Output Current Range Min 4.925 0 Typ 5.000 ±4 ±4 ±15 ±23 70 25 Max 5.075 ±9 ±9 ±30 ±48 120 50 8 Unit V mV mV mV mV mV mV A 0-20MHz BW, with a 1µF ceramic capacitor and a 10uF Tantalum cap at output. Notes Vin=48 V; Io=50% load 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 5 Vdc / 8 A Output, 1/16 Brick May 24, 2011 Bel Power Inc., a subsidiary of Bel Fuse Inc. Parameter Min 8.8 150 Typ 10 0.5 25 0 Max 12.5 1 50 5 2200 Unit A As mS % uF 2 Output Specifications (continued) Notes Hiccup mode, auto recovery. Output DC Current Limit Short Circuit Surge Transient Turn on Time Overshoot at Turn on Output Capacitance Transient Response 25% ~ 50% Max Load 50% ~ 25% Max Load Overshoot Settling Time Overshoot Settling Time Vo=5 V 250 100 250 100 350 200 350 200 mV mS mV mS di/dt=0.1A/us, Vin=48Vdc, Ta=25°C, with a 1µF ceramic capacitor and a 10uF Tantalum cap at output. Note: All specifications are typical at nominal input, full load at 25°C unless otherwise stated. General Specifications Parameter Efficiency Switching Frequency Min 85 Typ 87 500 Max Unit % KHz The OTP threshold is set at 125C in non-latch mode, and the module will restart automatically when temperature falls down to 115C. Notes Vin=48 V, full load Over Temperature Protection - 125 - C Output Voltage Trim Range Over Voltage Protection Dimensions Inches (L × W × H) Millimeters (L × W × H) Weight Isolation characteristics Input to Output Isolation Resistance Isolation Capacitance 90 - 130 1.30 x 0.90 x 0.46 33.02 x 22.86 x 11.69 110 160 % % This voltage is achieved by trimming up output slowly. - 14 - g 10M - 3900 1500 - V 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 5 Vdc / 8 A Output, 1/16 Brick May 24, 2011 Bel Power Inc., a subsidiary of Bel Fuse Inc. Efficiency Data 90% 85% 80% E F F IC IE N C Y 75% 70% 65% 60% 55% 50% 0.80 18V 24V 48V 75V 2.00 4.00 6.00 8.00 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 18 Vdc - 75 Vdc Input 5 Vdc / 8 A Output, 1/16 Brick May 24, 2011 Bel Power Inc., a subsidiary of Bel Fuse Inc. Thermal Derating Curve (continued) Derating curve under normal input Vin= 24Vdc Vin= 48Vdc The OTP is achieved by thermistor R65 and the threshold is set at 120C in non-latch mode; the hottest component Q5 reaches 125C with 100LFM air flow correspondingly. It will restart automatically when the temperature falls down to 115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 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 5 Vdc / 8 A Output, 1/16 Brick May 24, 2011 Bel Power Inc., a subsidiary of Bel Fuse Inc. Ripple and Noise Waveform 48Vdc input, 5Vdc 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 Vout= 5V 50%-25% Load Transients Vout= 5V 25%-50% Load Transients Note: Transient Response at di/dt=0.1A/uS, Vin=48Vdc, with an External 100uF Tantalum Cap and 1uF Ceramic Cap, 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 5 Vdc / 8 A Output, 1/16 Brick May 24, 2011 Bel Power Inc., a subsidiary of Bel Fuse Inc. Startup Rise time Start up time Vin=48V, Vo=5V, 100% Load Ch1: Vo Ch2: Vin Vin=48V, Vo=5V, 100% Load Note: Start up waveform, tested with an External 220uF Tantalum Cap and 1uF Ceramic Cap, Ta=25 deg C. Remote On/Off Parameter Signal Low (Unit On) Signal High (Unit Off) Current Sink Active Low Min -0.3 2.4 0 Typ Max 0.8 18 1 Unit V V mA Notes Remote On/Off pin is open, the module is off. 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 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 18 Vdc - 75 Vdc Input 5 Vdc / 8 A Output, 1/16 Brick May 24, 2011 Bel Power Inc., a subsidiary of Bel Fuse Inc. Output Trim Equations Equations for calculating the trim resistor are shown below (Unit: kΩ). The Trim Down resistor should be connected between the Trim pin and Ground pin. The Trim Up resistor should be connected between the Trim pin and the Vout. Only one of the resistors should be used for any given application. Vout Rtrimdown  511  10 .22 k delta Module Trim GND Rtrimdown (100  delta)  Vo  5.11  626 Rtrimup   10.22 k 1.225 delta Vout Module Trim GND Rtrimup Note: delta  Vo _ req  Vo   100 % Vo Vo_req=Desired(trimmed) output voltage[V] Output voltage Vo=5.002V 400 360 Trim resistor value Rt rim_down(KOhm) Trim resistor value,Rt rim_up(KOhm) 2500 2250 2000 1750 1500 1250 1000 750 500 250 320 280 240 200 160 120 80 40 0 4 4.1 4.2 4.3 4.4 4.5 4.6 4.7 Adjusted output voltageVo,adj (V) 4.8 4.9 5 0 5 5.05 5.1 5.15 5.2 5.25 5.3 5.35 Adjusted output voltageVo,adj(V) 5.4 5.45 5.5 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 5 Vdc / 8 A Output, 1/16 Brick May 24, 2011 Bel Power Inc., a subsidiary of Bel Fuse Inc. 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+ (51 ohm) from Vo+ to Sense+ and a resistor RS- (10 ohm)) from Vo- to Sense- inside of this module. Vo+ RS + Sense+ Load SenseR S- 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. V o+ RS + Sense+ Load SenseRS- 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 18 Vdc - 75 Vdc Input 5 Vdc / 8 A Output, 1/16 Brick May 24, 2011 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 (-) Vout (-) SENSE(-) Trim SENSE(+) Vout (+) Dia. 0.04’’ 0.04’’ 0.04’’ 0.062’’ 0.04’’ 0.04’’ 0.04’’ 0.062’’ 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 10 ISOLATED DC/DC CONVERTERS 18 Vdc - 75 Vdc Input 5 Vdc / 8 A Output, 1/16 Brick May 24, 2011 Bel Power Inc., a subsidiary of Bel Fuse Inc. Revision History Date 2011-05-24 Revision PA First release Changes Detail Approval 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. 2011 Bel Fuse Inc. Specifications subject to change without notice. 052411 11 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