ASTEC STANDARD POWER DC/DC Converters The MR Series is ideally suited for sensitive digital and analog applications requiring low noise, high power density, and wide input range, i.e. telecommunica- tions, test equipment, and process control. Special Features MOSFET design Surface mount technology 4:1 wide input range Continuous foldback short circuit protection Regulated outputs 500 V isolation e Six-sided shielding The new MR Series features the latest in MOSFET design and state-of-the-art surface mount technology. This series offers a 20 - 72 V 4:1 ultra-wide input range and efficiencies of 80% or greater. Other key features include low ESR capacitors on both the input and output to reduce noise, foldback continu- ous overload protection, output voltage trim adjustability, TTL & CMOS remote inhibit, excellent + 0.5% line regulation, 500 Vde input / output isolation, and an operating temperature range of -25C to +60C. All models are packaged in a six-sided shielded case, measuring only 1.6 X 2.0" X 0.4". ULE D MM 1013322 0000b3b 433 MBPUR MR Series 15 Watts Single/Dual Outputs Electrical Specifications . Input Vin -nominal.............665 Voltage range ...........6-5- Reflected ripple ............. Input filtering ..........--.0-- Output Voltage tolerance ............ Voltage balance ............-. Ripple and noise (PARD)...... Short circuit protection ........ Temperature coefficient ....... _General Regulation LING 0. ce eee ees Load oo... cece eee ee Efficiency. .........6. 202 eee VO isolation... 0... ce eee Switching frequency .......... Environmental . . Operating temperature range: -25C to +60C (linearly derate to 0 watts at 100C) Storage temperature: -40C to +125C Cooling: Free air convection YOO ASTEC TS7-\ 48 20 - 72 Vde < 100 mA p-p* Capacitor** +1.0% + 1% (dual outputs) 75 mV p-p (max)**" Continuous foldback 0.02% / C max +0.5% +1.0% 80% (typ) 500 Vdc 130 kHz + 5% Notes. . e e # e * Using an external LC filter can reduce below 10 mA. ** Requires 33 uF 100 V low ESR electrolytic capacitor across input (Sprague type 672D or equivalent). *** Measured with 3.3 wF 25 V tantalum capacitor across each output. Specifications subject to change without notice. In North America Call (619) 757-1880 / In Europe Call 246-455946 (U.K.)WBE D MB LOL31e2 OOOOb3? ??T OOOO? ASTEC STANDARD POWER Division of Astec America Inc. Ordering Information. . ASTEC STANDARD POWER DC/DC Converters 401 Jones Road Oceanside, CA 92054-1216 Telephone: 619-757-1880 Facsimile:-619-439-4243 _ Peter Rentini. : ee] 8 a Output MBPUR 7-57-11 ASTEC STANDARD POWER EUROPE A Division of Astec Europe Limited Unit 2B, Carlisle Close, Sheffield Road Chesterfield S41 9ED, UK Telephone: 0246-455946 Facsimile: 0246-450428 ey: en | ee eco Single 20-72V 5 Vde 3000 mA MRS2300-9 GA11-300-48 0.5 1.0 20-72V 12 Vde 1250 mA MRS3125-9 GA12-125-48 0.5 1.0 20-72V 15 Vde 1000 mA MRS4100-9 GA13-100-48 0.5 1.0 Dual 20-72V +12 Vde +625 mA MRD4100-9 GA22-125-48 0.5 1.0 20-72V +15 Vde +500 mA MRD3125-9 GA23-100-48 0.5 1.0 Dra wings e e e e ci s e e e se e e e es e e e e e e <__- 2.00 (61), __--_> 10 _,} jy ~ 15 Min 80 (45.7 : .40 (2.5) | 1.80 (45.7) | | (3.8) (10.2)"| 20 (5.1 | I 5 a a CI (17.8) 10.2) 1.60 | ' 6 |- = (40.6), > 40 20 6.1), 5 io) 7 oo 40 A (10.2) ity 4 . 86 Y co Bottom View Pin Assignments Single Output Dual Output Notes Pin 1 +Vdec in Pin 1 +Vdc in 1. All dimensions are in inches and (mm). 5. External Output Trimming: . Pin2 -Vde in Pin 2 -Vde in Output may be externally trimmed + 10% Pin 4 Remote Pin 4 Remote 2. Seven pins 0.040 (1.0) dia X 0.20 (5.1) with a resistor or trimpot as shown: on/off on/off length (min). Pind No pin Pin 5 +Vde out 6 Pin 6 +Vdc out Pin 6 Output 3. Remote On / Off (Pin 4) Pin7 -Vde out common Referenced to input minus (Pin 2) Pin & Trim Pin7 -Vde out ON - TTL high (> 2.4 Vdc) or open Pin 8 Trim OFF - TTL tow (< 1.8 Vdc) or jumper 8 20K Open collector compatible. 4. Case Connection: 7 Case connected to input plus (Pin 1). * e e e s e e e e e e e e e e e e e e e e e 127