DC-DC Converter Bricks, Open/Enclosed BBF SERIES, FULL BRICK, UP TO 700W FEATURES: 5 years warranty 1500Vdc isolation voltage Wide(2:1) input voltage range Efficiency up to 94% Operating temperature range -40°C to +100°C Under voltage, over current, short circuit, over voltage protection Remote on/off Adjustable output voltage Input voltage (Vdc) Output voltage (Vdc) Output current (A) Efficiency Typ. 24(18~36) 28.0 21.5 88% BBF48-120V42 12.0 42.0 89% BBF48-240V13 BBF48-240V26 24.0 12.5 85% 24.0 26.0 94% BBF48-280V18 28.0 18.0 94% BBF48-280V25 28.0 25.0 94% Model BBF24-280V22 48(36~72) Notes: other input and output models may available on request. ELECTRICAL Input voltage range 24V 18-36Vdc 48V 36-72Vdc ON: current operating on Remote control Current-model control remote terminal OFF: no current operating on remote terminal Output power Input voltage range Output voltage Single output Output voltage accuracy Input voltage range Output voltage adjustable Negative logic +10% Line regulation Full load ±0.2% Load regulation 10%-100% full load ±0.5% Dynamic response (transient/recovery time) 300-700W 12/24/28Vdc ±1% 25%-50%-75% load capability Ripple and noise Parallel test, 20MHz wide range Operating frequency Typical value www.pairuigroup.com Page: ∆Vo/∆t: ±4.0%/500μs 240mVp-p max. 300KHz typ. 1/3 Date: 01/23/2014 DC-DC Converter Bricks, Open/Enclosed BBF SERIES, FULL BRICK, UP TO 700W ELECTRICAL Isolation voltage Input to output 1500Vdc Input to case 1050Vdc Output to case 500Vdc Isolation resistance --- 100MΩ Safety --- EN-60950 Temperature coefficient --- 200ppm Operating temperature range Auxiliary heat sink -40°C to +100°C Storage temperature range --- -40°C to +105°C Over temperature protection Typical Under voltage protection --- Yes Over current protection --- Yes Short circuit protection --- Yes Over voltage protection --- Yes Relative humidity --- 95% max. Packing --- Hole package MTBF Bellcore TR-332, 25°C 105°C typ. 2*106Hrs Notes: Unless otherwise specified, all the parameters of the test conditions are as follows: ambient temperature 25 , the nominal input voltage, pure resistive nominal load. ℃ MECHANICAL CONNECTION PCB LAYOUT PIN # SINGLE 1 -Vin 2 +Vin 3 -REM 4 +REM 567 GND 8 9 10 +Vo 11 AUX 12 IOG 13 PC 14 TRIM 15 +S 16 -S Note: * Unit is mm(inch). www.pairuigroup.com Page: 2/3 Date: 01/23/2014 DC-DC Converter Bricks, Open/Enclosed BBF SERIES, FULL BRICK, UP TO 700W DERATING CURVE EFFICIENCY CURVE NOTES RECOMMENDED TEST AND APPLICATION CIRCUIT 1. TVS&FUSE be helpful with over voltage protection and inrush limiting. Recommended FUSE better be 1.5~2times of the rated current . 2. The input filter capacitor C6 could select the aluminum electrolytic capacitors or tantalum capacitors, and the withstand voltage should be greater than the highest input voltage. Recommended capacitor should be between 22μF~100μF. 3. C1,C2 for the input filter capacitor,0.1~1μF high-frequency ceramics capacitor or chip capacitor are recommended. The withstand voltage of output filter C5, C7 should be greater than the highest output voltage. Recommended capacitor of C7 better within 100μF and C5 connected with the chip to reduce the input voltage peak, recommended 0.1~1μF high-frequency ceramics capacitor or chip capacitor. www.pairuigroup.com Page: 3/3 Date: 01/23/2014