AK40A Surface Mount 15 Watts AK40A Series Total Power 15 Watts Input Voltages 48V, 24V # of Outputs Single S P E C I A L F E AT U R E S E L E C T R I C A L S P E C I F I C AT I O N S * * * Input * * * * * * Surface mount High power density 15W/Cu. in. Full power capability without external heat sink Input differential and common mode filtering Hot insertable with inrush current limit Ability to limit inrush current in an external input capacitor Input undervoltage lockout with hysteresis Output overvoltage protection Remote shutdown E N V I R O N M E N TA L Operating ambient temperature range: -40 to +75 C (no derating) Cooling method: Convection MTBF: 7.5 MHrs Storage temperature: -55 to +125 C SAFETY UL 1950 IEC 950 CSA C22.2-9.50 CB 52719-106 Input Range: ......................... 36 to 75 VDC for 48V 18 to 36 VDC for 24V Maximum Inrush Current Limit: ........................ 1.0 A Max. Maximum External Capacitor to Limit Inrush Current to 1.0 A .................... 4.0F Low Input Shutdown: ............ 34.0 +/- 2.0 V for 48V 17.0V +/- 1.0V for 24 V Auto Recovery: ..................... 37.0V +/- 2.0 V for 48V 18.5V +/- 1.0 V for 24V Hysteresis: ........................... 3 V +/- 1 V for 48V 1.5V +/- 0.5V for 24V Efficiency: ............................. 85% Enable: ................................. Open Circuit or up to 0.5V max. Disable: ................................ 4V min., 75V max. Output Voltage Tolerance: ................ +/- 3% for single output +/- 5% for dual output Noise/Ripple: ........................ 75mV rms max. Output Voltage Adjust Range: ....................... +/- 10% for single output dual output non adjustable Output Voltage Protection .... Self-limiting Clamp, 140% max. Short Circuit Protection ........ Continuous Auto Start Switching Frequency: ........... 200kHz nominal NOTES 1. All specifications are typical at nominal input and full load unless otherwise noted. 2. Specification subject to change without notice. 3. Mechanical drawings for reference only. 4. Minimum Load: 0.2 A (min 15%) 5. Max. Capacitive Load: 330 mF 146 USA: 1-888-41-ASTEC Europe (UK): +44(0)1384-842211 Asia (HK): 852-2437-9662 ASIA 6F., CDW Building 382-392 Castle Peak Road Tsuen Wan, N.T., Hong Kong Telephone: 852-2437-9662 Facsimile: 852-2402-4426 AMERICAS 5810 Van Allen Way Carlsbad, CA 92008 Telephone: 760-930-4600 Facsimile: 760-930-0698 EUROPE Astec House, Waterfront Business Park Merry Hill, Dudley West Midlands, DY5 1LX, UK Telephone:+44(0)1384-842211 Facsimile:+44(0)1384-843355 D C D C O R D E R I N G I N F O R M AT I O N Input Voltage 18-36 18-36 18-36 18-36 18-36 18-36 18-36 36-75 36-75 36-75 36-75 36-75 36-75 36-75 Output 1 Voltage 1.5V@4A 1.8V@4A 2.1V@4A 2.5V@4A 3.3V@4A 5.0V@3A 12V@1.25A 1.5V@4A 1.8V@4A 2.1V@4A 2.5V@4A 3.3V@4A 5.0V@3A 12V@1.25A Maximum Power 6W 7.2W 8.2W 12W 13.2W 15W 15W 6W 7.2W 8.2W 12W 13.2W 15W 15W P Model Number O W AK40A-024L-015F04SM AK40A-024L-018F04SM AK40A-024L-021F04SM AK40A-024L-025F04SM AK40A-024L-033F04SM AK40A-024L-050F03SM AK40A-024L-120F01SM AK40A-048L-015F04SM AK40A-048L-018F04SM AK40A-048L-021F04SM AK40A-048L-025F04SM AK40A-048L-033F04SM AK40A-048L-050F03SM AK40A-048L-120F01SM E R DIMENSIONS AK40A PIN ASSIGNMENTS Single Output 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. +Vout +Vout +Vout +Vout -Vout -Vout -V out -Vout Reserved Adjust Reserved Reserved Reserved Reserved Reserved Reserved +Vin Shutdown -Vin Reserved Dimensions: Single Output: 1"W x 2"L x 0.5"H Maximum Weight: Single Output: 20 grams Rev 7.13.99 www.astec.com 147