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| NON-ISOLATED DC/DC CONVERTERS 10 V-14 V Input 1.2 V-5.0 V/10 A Output SRBC-10AXX0 Series * * * * * * Non-Isolated High Efficiency High Power Density Excellent Thermal Performance Low Cost Remote Sense RoHS Compliant * * * * * Under-voltage Lockout (UVLO) Over Temperature Protection OCP/SCP Remote On/Off Industrial Temperature Range Description The Bel SRBC-10AXX0 modules are a series of non-isolated dc/dc converters that deliver up to 10 A of output current with full load efficiency of 93% at 3.3 V output. The open-frame construction and small footprint enable designers to develop cost and space-efficient solutions. Standard features include remote On/Off, over current protection, short current protection, and wide input. Part Selection Output Voltage 5.0 V 3.3 V 2.5 V 1.8 V 1.5 V 1.2 V Input Voltage 10 V - 14 V 10 V - 14 V 10 V - 14 V 10 V - 14 V 10 V - 14 V 10 V - 14 V Max. Output Current 10 A 10 A 10 A 10 A 10 A 10 A Max. Output Power 50.0 W 33.0 W 25.0 W 18.0 W 15.0 W 12.0 W Typical Efficiency 95% 93% 92% 90% 89% 87.5% Model Number Active High SRBC-10A500 SRBC-10A330 SRBC-10A250 SRBC-10A180 SRBC-10A150 SRBC-10A120 Note: Add "G" suffix at the end of the model number to indicate "Tray Packaging". Absolute Maximum Ratings Parameter Input Voltage (continuous) Output Enable Terminal Voltage Ambient Temperature Storage Temperature Min -0.3 V -0.3 V -40 C -55 C Typ Max 15 V 15 V 85 C 125 C Notes 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 NON-ISOLATED DC/DC CONVERTERS 10 V-14 V Input 1.2 V-5.0 V/10 A Output 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) I t Inrush Current Transient Turn-on Voltage Threshold 1.2 V - 3.3 V 5.0 V Turn-off Voltage Threshold 1.2 V - 3.3 V 5.0 V 2 Min 10 V 6.7 V 8.0 V Typ 3 mA 100 mA 50 mA 0.05 A s 7.8 V 9.4 V 2 Max 14 V 5.7 A 60 mA 10 mA 0.1 A s 7.9 V 9.0 V 2 Notes An input line fuse must always be used. Tested with one 1000 uF/25 V Electrolytic capacitor and four 47 uF tan capacitors and one 1 uH inductor at the input. Note: All specifications are typical 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) Output Current Current Limit Threshold Short Circuit Surge Transient Ripple and Noise (pk-pk) Ripple and Noise (rms) Turn on Time Overshoot at Turn on Output Capacitance Transient Response 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time VO = 1.2 V -5.0 V 200 mV 25 uS 200 mV 25 uS di/dt=2.5 A/uS, Vin=12 V Min -2% Vo,set 0A Typ 10 mV 10 mV 15 mV 200% Io 0.5 A s 50 mV 20 mV 7 mS 2 Max 2% Vo,set 10 A 1A s 100 mV 40 mV 10 mS 1% Vo,set 5000 uF 2 Notes Vin=12 V, full load Tref=Ta, min to Ta, max Tested with 0-20 MHz Note: All specifications are typical at nominal input, full load 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 NON-ISOLATED DC/DC CONVERTERS 10 V-14 V Input 1.2 V-5.0 V/10 A Output General Specifications Parameter Efficiency Vo=5.0 V Vo=3.3 V Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Switching Frequency Over Temperature Shutdown 1 Min 265 kHz 90% Vo - Typ 95% 93% 92% 90% 89% 87.5% 300 kHz 130 C 4,982,651 hours Max 335 kHz 110% Vo 110% Vo Notes Measured at Vin=12 V, full load Output Voltage Trim Range 1.5 V~5.0 V 1.2 V MTBF Dimensions Inches (L x W x H) Millimeters (L x W x H) Weight Calculated Per Bell Core SR-332 (IO = 80% Io, max; Vo=5.0 V; Vin=12 V; Ta = 25 C) 1.3 x 0.53 x 0.315 33.02 x 13.46 x 8.00 7.8 g - Notes: All specifications are typical at 25 C unless otherwise stated. 1. The Tref temperature measurement location: Control Specifications Parameter Remote On/Off Signal Low (Unit Off) Signal High (Unit On) -0.3 V 1V 0.3 V 14 V Remote On/Off pin open, Unit on. Min Typ Max Notes Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 10 V-14 V Input 1.2 V-5.0 V/10 A Output Output Trim Equations Equations for calculating the trim resistor (in k) given the desired adjusted voltage (Vadj) and the nominal output voltage of the converter (Vnom) are shown below. The Trim Down resistor should be connected between the Trim pin and Vout. The Trim Up resistor should be connected between the Trim pin and Ground. Only one of the resistors should be used for any given application. Rtrimdown = A -B Vnom - Vadj Vout Rtrimdown Module Trim GND Rtrimup = Vadj C -D - Vnom Vout Module Trim Rtrimup GND Vnom 5.0 3.3 2.5 1.8 1.5 1.2 A 64.6353 39.1049 27.0561 16.5749 12.0693 - B 16.01 16.01 16.01 16.01 16.01 - C 10.507 10.507 10.507 10.507 10.507 10.507 D 1 1 1 1 1 1 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 10 V-14 V Input 1.2 V-5.0 V/10 A Output Efficiency Data Module 5.0V Module 3.3V 10V 12.0V 14.0V 100.0% 90.0% 80.0% 70.0% 60.0% 50.0% 1A 2.5A 5A 7.5A Output Current 10A 100.0% 90.0% 80.0% 70.0% 60.0% 50.0% 1A 2.5A 5A 7.5A 10A Output Current Efficiency Efficiency 10V 12.0V 14.0V 100.0% 90.0% 80.0% 70.0% 60.0% 50.0% Module 2.5V Module 1.8V 8.3V 12.0V 14.0V 100.0% 90.0% 80.0% 70.0% 60.0% 50.0% 1A 2.5A 5A 7.5A 10A Output Current Module 1.2V Efficiency Efficiency 10V 12.0V 14.0V 1A 2.5A 5A 7.5A 10A Output Current Module 1.5V 100.0% 90.0% 80.0% 70.0% 60.0% 50.0% 1A 10V 12.0V 14.0V 100.0% 90.0% 80.0% 70.0% 60.0% 50.0% 1A 2.5A 5A 7.5A 10A Output Current Efficiency Efficiency 10V 12.0V 14.0V 2.5A 5A 7.5A 10A Output Current Thermal Derating Curve Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 10 V-14 V Input 1.2 V-5.0 V/10 A Output Mechanical Outline Pin Connections Pin 1 2 3 4 5 6 Function Remote On/Off Vin Ground Vout Trim Remote Sense RECOMMENDED PAD LAYOUT BOTTOM VIEW PAD SIZE: MIN: 0.14"* 0.095" (3.56mm * 2.41mm) MAX: 0.165"* 0.11" (4.19mm * 2.79mm) RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. (c)2006 Bel Fuse Inc. Specifications subject to change without notice. 011906 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 |
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