Bus Converter 48V Input / 9.4V Output / 70A 07CN-70S10L PRELIMINARY • Ideal for Intermediate Bus Architectures • Industry standard half-brick package • Up to 500W at 96.5% efficiency • 1500V isolation • Safety Agency Approvals Description The 07CN-70S “Cimarron” Series are isolated DC/DC converters that operate from a nominal 48V source. These converters are intended to provide isolation and step down to generate an intermediate bus for the purpose of powering non-isolated Point-of-Load (POL) converters. These units will provide up to 500W of output power from a 48V input. These units are designed to be highly efficient and very low cost and are thus unregulated. The downstream POL converters will provide the precise regulation required by the load. Features include remote on/off, over current protection and undervoltage lockout. These converters are provided in an industry standard half-brick package. Part Selection Output Voltage 9.4V Input Voltage 48V Max. Output Current 70A Max. Output Power 500W Typical Efficiency 96.5% Model Number 07CN-70S10L Input Specifications Parameter Input Voltage Range Input Current (no load) Input Current (full load) Reflected Ripple Current (pk-pk) Undervoltage Lockout Turn-on Turn off Overvoltage Lockout Min 36 VDC Typ Max 55 VDC 165mA 15A 5mA rms 15mA pk-pk Notes with a 12uH source inductor at nom. Vin and full load. 35 VDC 33 VDC 57.5 VDC Output Specifications Parameter Output Voltage Min 36Vin 48Vin 55Vin Output Current Max 7.1 9.4 10.8 0A Output Power Load Regulation Notes Setpoint at no load. 70A 500W 0.25V Ripple and Noise Load Capacitance Typ 160mV pk-pk 0uF 0 to 20MHz Bandwidth Use 4, 1uF ceramic caps and 2, 15µF tantalum capacitor on output 3000uF Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com Bus Converter 48V Input / 9.4V Output / 70A Output Specifications (continued) Parameter Min Typ Transient Response Max deviation Recovery to within ± 1% 150mV 150uS General Specifications Parameter Switching Frequency Dimensions Specification 100kHz typical (fixed) inches mm Weight Operating Temperature Non-Operating Temperature Overtemp Shutdown Max Notes di/dt =0 .1A/uS, Vin =48VDC Ta = 25°C, 25% load change. 200mV 200uS Pin Connections Pin 1 2 3 4 5 2.28 x 2.4 x .41 57.9 x 61.0x 10.4 TBD -40°C to 85°C -55°C to 125°C 135°C (10°C hysteresis) Note: measured on Q9 Function + Vin Remote On/Off - Vin - Vout + Vout 2.28 (57.9) 0.4 (10.2) Protection Features Short circuit Over current Undervoltage Overvoltage Latching 110% to 125% max Io UVLO Vin < 35.0 OVSD Vin>57.0 Active Low (Optional Active High) Turn on delay Outupt voltage rise time Safety Agency Approvals (pending) Low: 0V to 0.6V High: 1.0 V to 18V 3mS (typ.) 6.5mS (typ.) UL / cUL Recognized Certified to EN60950 Remote On/Off 1 1.4 (35.6) 2 3 5 1.4 (35.6) Top View 2.4 (61.0) 4 2004 Bel Fuse Inc. Specifications subject to change without notice 021104 CORPORATE FAR EAST EUROPE Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 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 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