B4AR121051

P Premier M Magnetics Inc. "INNOVATORS IN MAGNETICS TECHNOLOGY" 2.25 WATT ETHERNET DC/DC CONVERTERS INPUT SPECIFICATIONS % Voltage ................................................. 12.0Vdc % Voltage Range ......................................... ±10% % Input Filter ............................................... π Filter FEATURES ! " # $ 2.25 Watts Fully Regulated Output Continuous Short Circuit Protection 5-Pin Low Profile Package GENERAL SPECIFICATIONS % % % % % Efficiency (regulated) .................... 50% min. Switching Frequency .................. 20KHz min. Isolation Voltage .................. 2500Vdc min. Operating Temperature ........... 0 to +71OC Storage Temperature ............ -40 to +85OC OUTPUT SPECIFICATIONS % % % % % % Voltage ............................................... Per Table Voltage Accuracy ...................................... ±5% Short Circuit Protection ....... Power Foldback Ripple & Noise 20MHz BW ........... 100mV p-p Line Regulation .................................... ±0.30% Load Regulation .................................. ±0.50% ELECTRICAL SPECIFICATIONS AT 25OC - OPERATING TEMPERATURE RANGE 0OC TO 71OC PART NUMBER B4AR120925 B4AR121051 PACKAGE PHYSICAL DIMENSIONS .... DIMENSIONS IN mm (inches) 0.400 (10.16) 0.400 (10.16) INPUT VOLTAGE (Vdc) OUTPUT VOLTAGE (Vdc) OUTPUT CURRENT (mA max.) INPUT CURRENT (mA typ.) REGULATED OUTPUT NO LOAD FULL LOAD 12 12 9 +10/+5 250 150/110 YES YES 50 60 380 350 SCHEMATIC PIN CONNECTIONS PIN NUMBER B4AR120925 B4AR121051 1 2 3 4 5 +INPUT -INPUT N/C +OUT -OUT +INPUT -INPUT +10V COMMON +5V .040 DIA. (1.02) 1.30 (33.00) .400 .400 (10.16) (10.16) .250 (6.35) .250 (6.35) -OUT + OUT NC + 5 COM + 10 3 4 5 .800 (20.32) 1.30 (33.00) P M B4AR120925 YYWW -- + IN IN P M B4AR121051 YYWW -- + IN IN 1 2 .200 (5.08) .550 (13.97) Specifications subject to change without notice. TOLERANCE IN INCHES XX± 0.02 XXX± 0.010 b4ar 8/97 20381 BARENTS SEA CIRCLE, LAKE FOREST, CA 92630 • TEL: (949) 452-0511 • FAX: (949) 452-0512 • http://www.premiermag.com 1