CIRCUITS, INC. 49 RANGE RD., WINDHAM, N.H. 03087 = SEMICONDUCTOR SUBSIDIARY OF ASTEC AMERICA, INC. GA SERIES 15 WATT DC/DC CONVERTERS The GA SERIES is an economically priced 15 watt DC/DC converter with ultra-wide input range, efficiencies to 85%, and a continuous six-sided shielded case. Features include overvoltage protection, output trim adjustability, TTL/CMOS compatible remote on/off, short-circuit protection and thermal shutdown.The GA SERIES case measures only 2.0"x 1.6"x 0.4" and offers a power density of 11.7 watts/cubic inch. 15 WATTS WIDE 4:1 INPUT RANGE 5 YEAR WARRANTY 2.0"x 1.6"x .40" CASE UL1950 RECOGNIZED ENVIRONMENTAL OPERATING TEMPERATURE AMBIENT -25C to +60C * DERATING TO ZERO POWER @ 105C BASEPLATE 105C max STORAGE TEMPERATURE AMBIENT -40C to +125C HUMIDITY (Non-condensing ) 5% to 95% ELECTRICAL SPECIFICATIONS INPUT RANGE 20 - 72 VDC EFFICIENCY FL 80 -85% INPUT CAPACITANCE 2.5 uf Typical OUTPUT VOLTAGE TOLERANCE + 1.0% max LINE REGULATION 0.5% LOAD REGULATION 2% (25% L to FL) RIPPLE/NOISE 50 mv pk-pk BANDWIDTH 20 MHz See Note | below TEMPERATURE COEFFICIENT + .02%/C max SHORT CIRCUIT PROTECTION Power Cycling TRANSIENT RESPONSE 500psec 50% Step Load Change GENERAL SPECIFICATIONS I/O ISOLATION 1500 VDC SWITCHING FREQUENCY 110 kHztypical EMI/RFI-SIX-SIDED CONTINUOUS SHIELD For input filter recommendations to meet FCC, VDE, EIC specs, consult factory. TRIM RANGE +10%,-4%max NOTE 1 - Anexternal 4.7 pf ceramic capacitor (Marcon TDC series) is recommended to be placed from the +V out to the -V out. TO ORDER -40C to +85C OPERATING TEMPERATURE ADD -W SUFFIX *change without notice. Mechanical drawings are for reference only. INPUT VOLTAGE OUTPUT 1 OUTPUT 2 MAXIMUM MODEL RANGE VOLTAGE VOLTAGE POWER NUMBER 20-72 VDC. 5V @3A 15W GA11-300-48 20-72 VDC 12V@ 1.250A 1SW GA12-125-48 20-72 VDC 1I5SV@1A 15W GA13-100-48 20-72 VDC 12V@ .625A -12V@ .625A 15W GA22-125-48 20-72 VDC 1SV@ _ .500A -15V@ .500A 1SW GA23-100-48 PIN ASSIGNMENT (10.16) SINGLE DUAL { { | 1 +V IN +V_ IN 15 MIN. [| 3.81 [| Ty 2 V IN V IN LL 040 (1.01) 3% | ai Oe ee NO PIN NO PIN 4 CONTROL CONTROL 2.00 5 NO PIN +V OUT (50.80) an: +V OUT COMM OUT OBO) 72) [s.08) 7 V OUT V OUT 8 TRIM TRIM S + 70 || 400 TRIM METHOD 17.78) (10.16) TO 1.60 (40.64) 1 + 6 + | 400 200 I 6 (5.08) 4 2 (10.16) TRIM DOWN | 400 | 5 ; + } 8 ADJ. (10.16) | 400 8 TRIM fo 4 | (10.16) 7 | + TRIM UP 7 BOTTOM VIEW . ALL DIMENSIONS ARE IN INCHES (mm) SEMICONDUCTOR PHYSICAL SPECIFICATIONS = All specifications are typical at CIRCUITS, INC. nominal line, full load, and 25C 49 RANGE ROAD ASEM unless otherwise noted. WINDHAM, NH 03087-2019 DIMENSIONS Pa . TEL: (800) 448-4724 2.0" 1.6"x.40" All specifications subject to (603) 893-2330 FAX: (603) 893-6280 February 9, 1996