Bus Converter 48V Input / 9.3V Output / 36.5A 07CM-38S10L PRELIMINARY • Ideal for Intermediate Bus Architectures • Industry standard quarter-brick package • Up to 300W at 95% efficiency • 1500V isolation • Safety Agency Approvals Description The 07CM-38S “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 300W of output power from a 54V 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 quarter-brick package. Part Selection Output Voltage 9.3V Input Voltage 48V Max. Output Current 36.5A Max. Output Power 300W Typical Efficiency 95% Model Number 07CM-38S10L 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 110mA 7.2A 50mA rms 100mA pk-pk Notes with a 12uH source inductor at nom. Vin and full load. 35.8 VDC 33.8 VDC 57.1 VDC Output Specifications Parameter Output Voltage Min 36Vin 48Vin 55Vin Typ Max 7.0V 9.3V 10.6V Output Current Output Power Load Regulation Ripple and Noise 0A Load Capacitance 100uF (50mohm) Notes Setpoint at no load. 36.5A 300W 0.55V 150mV pk-pk 0 to 20MHz Bandwidth Use 1.0uF ceramic cap and 100uF/50mOhm tantalum 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 / 9.3V Output / 36.5A Output Specifications (continued) Parameter Min Typ Transient Response Max deviation Recovery to within ± 1% Max 150mV 50uS 250mV 100uS General Specifications Parameter Switching Frequency Dimensions Pin Connections Specification 96kHz typical (fixed) inches mm Weight Operating Temperature Non-Operating Temperature Overtemp Shutdown Notes di/dt =0 .1A/uS, Vin =48VDC Ta = 25°C, 25% load change. Pin 1 2 3 4 5 2.28 x 1.45 x 1.00 57.9 x 36.8 x 25.4 56g (2.0oz) -40°C to 85°C -55°C to 125°C 120°C (10°C hysteresis) Note: measured on Q4 Function + Vin Remote On/Off - Vin - Vout + Vout 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 0.4V High: 1.0 V to 18V 2.7ms (typ.) 4.3ms (typ.) UL / cUL Recognized Certified to EN60950 Remote On/Off Derating @ 54VDC Input Derating @ 38VDC Input 35 40 30 35 200LFM 25 100LFM 30 Natural convection 25 Output Current Output Current 200LFM 100LFM Natural convection 20 15 10 20 5 0 15 0 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 Ambient Temperature C 5 10 15 20 25 30 35 40 45 50 55 60 65 70 Ambient Temperature C 2004 Bel Fuse Inc. Specifications subject to change without notice. 030904 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 Bus Converter 48V Input / 9.3V Output / 36.5A 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 / 9.3V Output / 36.5A *>100.0˚C Top Side of Unit w/o Heatsink Vin: Iout: Pout: Tamb: Airflow: 39VDC 33.2A 240W 22C 200LFM Air Flow 100.0 75.0 50.0 *<40.0˚C *>100.0˚C Bottom Side of Unit Vin: Iout: Pout: Tamb: Airflow: 39VDC 33.2A 240W 22C 200LFM Air Flow 80.0 55.0 30.0 *<40.0˚C 2004 Bel Fuse Inc. Specifications subject to change without notice. 030904 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 Bus Converter 48V Input / 9.3V Output / 36.5A *>100.0˚C Air Flow Top Side of Unit w/ 0.5” heatsink 55.0 Vin: Iout: Pout: Tamb: Airflow: 40.0 39VDC 33.2A 240W 22C 200LFM 25.0 *<40.0˚C Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com