S25

BTCPower BTCPower S25 Series Description TM Broadband TelCom Power, Inc. Redefining “Current” Limits In Power Conversion 25W High Efficiency Low Power Bricks The S25 series of high efficiency, low power DC/DC converters offer power levels that exceed other bricks with similar footprint. With a wide input voltage range of 18-36 or 36-75V they are available with an output voltage of either 1.5, 1.8, 2.5, 3.3, or 5 Volts. All models feature an input filter, input undervoltage lockout, overtemperature protection, output current limiting and short circuit protection. The fully enclosed, encapsulated construction aluminum heat spreader design achieves very efficient heat transfer with no hot spots. The use of patented design concepts facilitate maximum power delivered with the highest efficiency up to 90%. The converters combine creative design concepts with highly derated power devices to achieve very high reliability, high performance and low cost solution to systems designers that are challenged to maximize power and minimize board space. Features • • • • • • • • Delivers up to 25W in 1.2”x 2.0” format Synchronous rectification topology No airflow or heatsink required Low profile of only 0.35” 1.5V, 1.8V, 2.5V, 3.3V, 5V output modules -40°C to +85 °C ambient operation Meets Basic Insulation requirements of EN60950 UL 60950 recognized, TUV EN60950, and CSA C22.2 Specification Summary • 8A @ 1.5V, 8A @ 1.8V, 8A @ 2.5V, 7 A @ 3.3V, 5A @ 5 V • Tightly output regulation, typical ±1% • No minimum load required • Ripple & Noise ( 20Mhz BW) 100 mv (pk-pk) • Wide input operating range 18-36 or 36-75V • On/Off pin control • Output adjustment +/-10% range • 1500V, 10M input-to-output isolation No. 60950-00 Certified • Meets conducted limits of FCC Class B and CEI IEC61204-3 Class B with external filter Applications • • • • • • • Telecommunications Data Communications Wireless Communications Networking Gear Servers, Switches and Data Storage Semiconductor Test Equipment Distributed Power Architecture • Enclosed construction with heat spreader for low temperature rise • Enclosed six-sided metal shield contruction for low EMI/RFI • Output overcurrent protection • Over Temperature protection • Input Under voltage protection • MTBF of 4,500,000 hours @ 50°C ( Bellcore ) Broadband TelCom Power, Inc. – 1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A. Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: sales@btcpower.com PB S25 Rev3 16-1-04 S25 Series 25W High Efficiency Low Power Quarter Bricks BTCPower BTCPower TM Product Brief Part Number and Selection Information Input Model Part Number S25-48-1.5 S25-48-1.8 S25-48-2.5 S25-48-3.3 S25-48-5 Voltage (Volts) Nominal 48 48 48 48 48 Range 36-75 36-75 36-75 36-75 36-75 Current (A) No load 0.030 0.030 0.027 0.027 0.025 Full load 0.300 0.350 0.420 0.550 0.580 Output Voltage (Volts) 1.5 1.8 2.5 3.3 5.0 Current (Amps) 8.0 8.0 7.0 7.0 5.0 Efficiency 75% Load (%) 86 87 87 88 90 Typical at Ta= +25 ºC under nominal line voltage and 75% load conditions, unless noted. Outline Information and Pin-out Pin Connection (Function) Single Pin# Output 1 2 3 4 5 6 On/Off Vin Vin + Vout + Trim Vout - All dimensions are in inches [mm] All pins are dia. 0.040 [1.02] Pin material: Brass Pin finish: Gold plated Insulator pad around pins: Silicone rubber Case: Aluminum material with anodized finish Weight: 39.2 (1.4oz) The information and specifications contained in this brief are believed to be accurate and reliable at the time of publication. Specifications are subject to change without notice. Refer to product specification sheet for performance characteristics and application guidelines. Broadband TelCom Power, Inc. – 1719 S. Grand Avenue, Santa Ana, CA 92705 U.S.A. Tel.: 714-259-4888 • Fax: 714-259-0840 • www.btcpower.com • Email: sales@btcpower.com PB S25 Rev3 16-1-04