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| ISOLATED DC/DC CONVERTERS 48 Vdc Input 9.6 Vdc/16 A Output, 1/16 Brick Bus Converter SRCA-16S10L * * * * * Isolated Fixed Frequency High Efficiency High Power Density Low Cost RoHS Compliant * * * * * Rev.A Input Under Voltage Lockout Input Over Voltage Shutdown OCP/SCP Thermal shutdown Remote On/Off Description The SRCA-16S10L is an isolated dc/dc bus converter that operates from a nominal 48 Vdc source. This converter is intended to provide isolation and step down to generate an intermediate bus for the purpose of powering non-isolated Point-of-Load (POL) converters. This unit will provide up to 160 W of output power from a nominal 48 Vdc input. This unit is designed to be highly efficient and cost effective. The downstream POL converters will provide the precise regulation required by the load. 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 9.6 V Input Voltage 36 V - 60 V Max. Output Current 16 A Max. Output Power 153 W Typical Efficiency 95% Model Number Active Low SRCA-16S10L Notes: 1. Add "G" suffix at the end of the model number to indicate Tray Packaging. 2. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers. Absolute Maximum Ratings Parameter Input Voltage (continuous) Remote On/Off Ambient Temperature Storage Temperature Min -0.3 V -0.3 V -40 C -40 C Typ Max 80 V 18 V 85 C 125 C Notes 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 Input Over-Voltage Protection Threshold Turn On Voltage Threshold Turn Off Voltage Threshold 2 Min 36 V - Typ 4 mA 40 mA 10 mA 0.039 A s 63 V 35 V 30 V 2 Max 60 V 3.5 A 100 mA 10 mA 120 mA 30 mA 0.062 A s 2 Notes Active Low Tested with simulated source impedance of 10 uH, 5 Hz to 20 MHz; use a 100 uF/100 V electrolytic capacitor and 1 uF/100 V ceramic capacitor at the input. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com ISOLATED DC/DC CONVERTERS 48 Vdc Input 9.6 Vdc/16 A Output, 1/16 Brick Bus Converter Output Specifications Parameter Output Voltage Set Point Vin=36 V Vin=48 V Vin=60 V Line Regulation Load Regulation Vin=36 V Vin=48 V Vin=60 V Regulation Over Temperature (-40 C to +85 C) Output Current Current Limit Threshold Short Circuit Surge Transient Ripple and Noise (rms) Ripple and Noise (pk-pk) Turn on Time Overshoot at Turn on Output Capacitance Transient Response 50% ~ 75% Max Load 75% ~ 50% Max Load Overshoot Settling Time Overshoot Settling Time Vin=48 V 120 mV 100 uS 120 mV 100 uS 250 mV 250 uS 250 mV 250 uS Test conditions: di/dt = 0.5 A/uS, Vin=48 V and external load capacitance Co=2*270 uF OSCAN capacitor at the output. 0A 19 A 0 uF 0.6 V 0.6 V 0.6 V 120 mV 1.3 A s 10 mV 90 mV 10 mS 0% 2 Min 7.0 V 9.4 V 11.8 V - Typ 7.2 V 9.6 V 12 V 4.8 V Max 7.4 V 9.8 V 12.2 V 5.5 V 0.9 V 0.9 V 0.9 V 200 mV 16 A 26 A 2.1 A s 30 mV 150 mV 20 mS 3% 2000 uF 2 Notes lo=no load Test conditions: 0-20 MHz BW, with a 1 uF ceramic capacitor and a 10 uF Tantalum capacitor at the output; Vin=48 V. Note: All specifications are typical at 25 C unless otherwise stated. General Specifications Parameter Efficiency Switching Frequency Isolation Capacitance Isolation Voltage Over Temperature Protection MTBF Dimensions Inches (L x W x H) Millimeters (L x W x H) Weight 1.30 x 0.90 x 0.445 33.02 x 22.86 x 11.32 16.6 g Min 93% 140 kHz Typ 95% 160 kHz 1500 pF 500 V 115 C 1,774,032 hours Max 180 kHz Calculated Per Bell Core SR-332 (IO=80% full load; Vo=12 V; Ta = 25 C) Notes Vin=48 V, full load - 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 ISOLATED DC/DC CONVERTERS 48 Vdc Input 9.6 Vdc/16 A Output, 1/16 Brick Bus Converter Control Specifications Parameter Remote On/Off Signal Low (Unit On) Signal High (Unit Off) Active Low -0.3 V 2.4 V 0.8 V 18 V SRCA-16S10L. The remote on/off pin open, Unit off. Min Typ Max Notes Efficiency Data 98.00% 96.00% 94.00% Efficiency 92.00% 90.00% 88.00% 86.00% 84.00% 82.00% 80.00% 1.6 A 4.0 A 8.0 A Output current 12 A 16 A 36 V 48 V 60 V Thermal Derating Curve Note: Maximum output power derating curves vs. ambient air temperature for airflow rates of 0 LFM through 400 LFM with air flowing from input to output (nominal input voltage). Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com ISOLATED DC/DC CONVERTERS 48 Vdc Input 9.6 Vdc/16 A Output, 1/16 Brick Bus Converter Ripple and Noise Waveform Note: Ripple and noise at full load, 48 V input and Ta=25 deg C, and with a 10 uF tantalum capacitor and 1 uF ceramic capacitor at the output. Transient Response Waveforms 50% to 75% load Transient at 48 V input 75% to 50% load Transient at 48 V input Note: Transient Response at di/dt=0.5 A/uS, Cout=2*270 uF OS-CAN CAP, 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 ISOLATED DC/DC CONVERTERS 48 Vdc Input 9.6 Vdc/16 A Output, 1/16 Brick Bus Converter Mechanical Outline Pin Connections Pin 1 2 3 4 5 Function Vin+ Remote On/Off VinVoutVout+ RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. (c)2007 Bel Fuse Inc. Specifications subject to change without notice. 031307 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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