W9959_02_DCDC_001-073_73 2/8/02 3:55 PM Page 52 Total Power: 240 Watts Input Voltages: 24V 240 Watts No. of Outputs: Single AK80A Electrical Specs Input Input Range 18 to 36 VDC Efficiency 83% typical @ 5V; 87% typical @ 12V; 87% typical @ 15V Output Load Regulation 0.3% typical down to no load Line Regulation 0.1% typical Noise/Ripple 100 mV typical (output below 5V) 2% typical (output 5V and over) Remote sense Up to 0.5V Output Voltage Special Features Adjust Range ±10% of nominal output Transient Response 10% typical deviation with 300µs recovery (25-75% full load) • High efficiency - up to 87% Current Share Accuracy 5% typical • 500 KHz fixed frequency Overvoltage Protection 130% nominal Vo • 85°C baseplate operating Current Limit 115% Io max temperature (with no derating) • Low output ripple and noise • Excellent transient response Control • High reliability - over 1 million hours MTBF Voltage Adjust 90 to 110% Vo • Wide input voltage range Enable TTL compatible (low to enable) • TTL compatible enable control Current Limit Adjust 20 to 100% Io rated • Parallelable Clock Input • Adjustable output voltage and current limit (external sync) 3.5 to 5Vp-p @ 1MHz ± 10% • Temperature monitor output Clock Output • Overtemperature and short circuit (internal clock) 4.4 to 5.5Vp-p @ 1MHz ± 0.5% protection Power • Regulation to zero load Good/Identification High (Vo) = power good Temperature Monitor Output 10 mV/°K (2.73V = 0°C) Environmental Notes Operating temperature (baseplate): Nominal values apply with sense pins connected and other control pins unconnected. 0°C to +85°C Storage temperature: -40°C to +105°C Specifications subject to change without notice. Overtemperature protection: 90°C typical MTBF: > 1 million hours (50°C baseplate) Safety UL UL 1950 E132002 CSA CSA22.2-234 LR53982C CSA22.2-950 VDE IEC950 20366-3336-1002 & 1008 EN 60950 CE CEMark (LVD) 52 America’s (USA): 1-888-41-ASTEC Europe (UK): 44 (1384) 842-211 Asia (HK): 852-2437-9662 END OF LIFE See website for alternate parts Astec Integrated Power AK80A Astec Integrated Power W9959_02_DCDC_001-073_73 2/8/02 3:55 PM Page 53 EUROPE ASIA AMERICAS Astec House, Waterfront Business Park Units 2111-2116, Level 21 5810 Van Allen Way Merry Hill, Dudley Tower1, Metroplaza Carlsbad, CA 92008 West Midlands, DY5 1LX, UK 223, Hing Fong Road Telephone: 760-930-4600 Telephone: 44 (1384) 842-211 Fwai Fong, New Territories Facsimile: 760-930-0698 Facsimile: 44 (1384) 843-355 Hong Kong Telephone: 852-2437-9662 Facsimile: 852-2402-4426 Ordering Information Input Output Output Model Number Voltage Voltage Current 24V 3.3V 40A AK80A-024L-033F40 24V 5V 30A AK80A-024L-050F30 24V 12V 14A AK80A-024L-120F14 24V 15V 12A AK80A-024L-150F12 24V 24V 8A AK80A-024L-240F08 Please contact Astec for information on other output voltages, power ranges and configurations. Pin Assignments THERMAL BASE PLATE* Input Output Control Pins 31. +ve 21. +ve 1. +SENSE 8 PRIMARY SIDE 32. –ve 22. +ve 2. PG/ID 8 OUTPUT PINS CONTROL PINS 23. +ve 3. V ADJ 4 SECONDARY SIDE 24. +ve 4. -SENSE 2 INPUT PINS CONTROL PINS 26. -ve 5. S COM 27. -ve 6. C SHARE 28. -ve 7. CLK OUT Secondary 29. -ve 8. CLK IN side 9. ENABLE controls 10. C LIM ADJ 29 32 28 11. TEMP MON 27 9 12 12. PRI AUX 34 26 8 5 21 24 23 Primary 31 22 side 21 controls 116.8 (4.60) + O/P C SHARE CLK OUT PG/ID goes high (to Vo) to indicate power good. 5 2 1 + SENSE 8 S COM Resistance between PG/ID and +O/P Load with no power applied indicates nominal Temperature monitor output – SENSE 4 9 12 3 O/P voltage, where 1K Ohm = 1 volt (e.g. to fan control circuit) (eg 3K3 = 3.3 V). ENABLE – O/P + O/P + I/P 18 to 36V or 1 8 5 2 + SENSE 36 to 72V C SHARE Load 9 12 – SENSE 3 4 CLK IN 2 5 1 + SENSE – I/P 8 – O/P S COM – SENSE 912 3 4 ENABLE Enable (close to enable) Output voltage adjust Current limit adjust www.astec.com 53 END OF LIFE See website for alternate parts AMPSS™ POWER MODULE 12.7 (0.50) 61.0 (2.40)