75 Watt ASD-Q Single Series DC/DC Converters Features Small size 1.45"x2.28"x0.52", industry standard 1/4 brick Excellent thermal performance with metal baseplate Fast over voltage protection Pulse-by-pulse current limiting, dead short current limiting Over-temperature protection Auto-softstart Very Low noise Low magnetics run cooler Constant frequency for normal operation Description Wide input voltage range The 75 Watt single ASD-Q series of DC/DC Converters provide precisely regulated dc outputs. All outputs are fully isolated from the inputs, allowing the output to be used with positive or negative polarity and various grounding options. The ASD-Q Series utilizes an insulated metal substrate design in an industry standard 1/4 brick case size to meet the most rigorous requirements of COTS and thermally challenging industrial applications. Remote Sense with high regulation Standard features include remote sensing, output trim, and remote Threaded-through holes are provided to allow easy mounting or add a heat sink for extended temperature use. Good shock and vibration damping Remote ON/OFF Super energy saving, 6 mA input idle current Output trim with very low temperature Water Washable, wide humidity applications S e le c tio n C h a r t Mo d e l In p u t R a n g e V DC Mi n Ma x I in ADC @ nom V out V DC I out ADC 20 Typ ASD75-24S3.3Q 18 36 3.31 3.3 ASD75-24S5Q 18 36 3 . 63 5 15 ASD75-24S12Q 18 36 3 . 59 12 6 . 25 ASD75-24S15Q 18 36 3 . 55 15 5 ASD75-24S24Q 18 36 3 . 55 24 3 . 13 ASD75-48S3.3Q 36 75 1 . 65 3 .3 20 ASD75-48S5Q 36 75 1 . 80 5 15 ASD75-48S12Q 36 75 1 . 78 12 6 . 25 ASD75-48S15Q 36 75 1 . 76 15 5 ASD75-48S24Q 36 75 1 . 76 24 3 . 13 A D e fa ult O N /O F F logic is pos itive . A dd -N to the mode l numbe r to orde r ne ga tive O N /O F F logic . 375 Forbes Blvd. Mansfield, MA 02048 Ph: 800-823-8082 Fax: 508-339-0375 1 www.astrodyne.com Email: sales@astrodyne.com 75 Watt ASD-Q Single Series DC/DC Converters Unless otherwise stated, these apply for ambient temperature TA =23 2C, nominal input voltage, and rated full load. (1) In p u t P a r a m e te r s Mo d e l V olta ge R a nge Input O ve rvolta ge * 1 0 0 mS e c Input R ipple R e je c tion ( 1 2 0 H z) U nde rvolta ge L oc k out ASD75-24S3.3Q ASD75-24S5Q ASD75-24S12Q ASD75-24S15Q ASD75-24S24Q U n its MIN T YP MA X 18 24 36 V DC MA X 50 V DC T YP 60 dB Ye s Input R e ve rs e V olta ge P rote c tion Input C urre nt N o L oa d T YP 1 0 0 % L oa d T YP Inrus h C urre nt MA X R e fle c te d R ipple , 1 2 H T YP S ourc e Impe da nc e (3 ) E ffic ie nc y T YP S witc hing F re que nc y T YP 50 3.3 Ye s 50 3.6 0.2 50 3.6 50 3.6 50 3.6 10 82 84 86 360 R e c omme nde d F us e mA A A2 S mA P -P 87 87 (2 ) % kHz A MP S In p u t P a r a m e te r s Mo d e l V olta ge R a nge Input O ve rvolta ge * 1 0 0 mS e c Input R ipple R e je c tion ( 1 2 0 H z) U nde rvolta ge L oc k out ASD75-48S3.3Q ASD75-48S5Q ASD75-48S12Q ASD75-48S15Q ASD75-48S24Q U n its MIN T YP MA X 36 48 75 V DC MA X 85 V DC T YP 60 dB Input R e ve rs e V olta ge P rote c tion Input C urre nt N o L oa d T YP 1 0 0 % L oa d T YP Inrus h C urre nt MA X R e fle c te d R ipple , 1 2 H T YP S ourc e Impe da nc e (3 ) E ffic ie nc y T YP S witc hing F re que nc y T YP Ye s 80 1.7 80 1.8 82 84 Ye s 80 1.8 0.2 80 1.8 80 1.8 87 87 10 R e c omme nde d F us e 86 360 (2 ) mA A A2 S mA P -P A % kHz A MP S * Absolute Maximum Ratings. Caution: Stresses in excess of the Absolute Maximum Ratings can cause permanent damage to the device (see Note 1). 375 Forbes Blvd. Mansfield, MA 02048 Ph: 800-823-8082 Fax: 508-339-0375 www.astrodyne.com Email: sales@astrodyne.com 75 Watt ASD-Q Single Series DC/DC Converters Unless otherwise stated, these apply for ambient temperature TA =23 2C, nominal input voltage, and rated full load. (1) O u tpu t P a r a me te r s ASD75-24S3.3Q ASD75-48S3.3Q Mo d e l O utput Volta ge O utput Volta ge S e tpoint A c c ura c y Turn O n O ve rs hoot Te mpe ra ture C oe ffic ie nt N ois e ( 8) R ipple L oa d C urre nt ( 4) L oa d Tra ns ie nt O ve rs hoot ( 7) L oa d Tra ns ie nt R e c ove ry T ime ( 6) L oa d R e gula tion ( 5) Min-Ma x L oa d L ine R e gula tion V in = Min-Ma x O ve rvolta ge P rote c tion ( OV P ) T hre s hhold OV P Type - N on-la tc hing O pe n L oop O ve rvolta ge C la mp O utput C urre nt L imit V out=90% of V out-nom O utput S hor t C irc uit C urre nt V out = 0. 1 V 3. 3 ASD75-24S5Q ASD75-48S5Q (2) (3) (4) (5) (6) (7) (8) ASD75-24S15Q ASD75-48S15Q 12 15 5 MA X TYP TYP MA X TYP TYP MI N MA X TYP ASD75-24S24Q ASD75-48S24Q 24 1 40 75 5 100 2 V DC % 0. 003 0. 005 20 30 U n its % 0 0. 005 0. 01 20 30 % / C 50 100 70 150 mV R MS mV P -P % % TYP 0. 8 TYP MA X TYP MA X 0. 02 0. 2 0. 01 0. 1 MI N MA X 115 135 % TYP 120 % TYP MA X 150 160 % (9) NOTES: (1) ASD75-24S12Q ASD75-48S12Q Refer to the Astrodyne Application Notes for terms, measurement circuits, and other information. Refer to the Astrodyne Application Notes for information on fusing. For inrush current, refer to the above. 33 F capacitor connected to two "Input" pins. Then place current sensor in series with 12 H inductor between 33 F and the source. The ripple current is measured over 5 Hz to 20 MHz bandwidth (current sensor is located between the converter input pin and the 12 H inductor). Optimum performance is obtained when this power supply is operated within the minimum to maximum load No damage to module will occur when the output is operated at less than minimum load, but the output voltage may contain a low frequency component that may exceed output noise . Load regulation is as the output voltage change when changing load current from maximum to minimum. The voltage is measured at the output pin. Load Transient Recovery Time is as the time for the output to settle from a 50 to 75% or 25% step load change to a 1% error band of output voltage (rise time of step = 2 Sec). as the peak overshoot Load Transient Overshoot is during a transient as in the Note 6 above. Noise is measured per the Astrodyne Application Notes. Output noise is measured with a 10 F tantalum capacitor in parallel with a 0.1 F ceramic capacitor connected across the output to CMN. Measurement bandwidth is 0-20 MHz. 375 Forbes Blvd. Mansfield, MA 02048 Ph: 800-823-8082 (10) mS e c % % switch is used, such as open collector When an external switch, logic high requires the switch to be high-impedance. Switch leakage currents greater than 20 A may be to trigger the to the logic-low state. Most switches would be suitable for logic control, in case there is a problem, you can make following estimation and then leave some margin. When open collector is used for logic high, "Open Circuit Voltage at Pin", "Output Resistance" and "External Leakage Current Allowed for Logic High" are used to estimate the high impedance requirement of open collector. When switch is used for logic low, "Open Circuit Voltage at On/ Pin", "Output Resistance" and "LOW Logic Level" are used to estimate the low impedance requirement of switch. Thermal impedance is tested with the converter mounted vertically and facing another printed circuit board 1/2 inch away. If converter is mounted horizontally with no obstructions, thermal impedance is approximately 10 C/W. If heat sink is needed, apply a very thin layer of thermally conductive grease on the metal base of converter, then properly tighten the screws. Water Washability - These DC/DC converters are designed to withstand most solder/wash processes. Careful attention should c be used when assessing the applicability in your manufacturing process. Converters are not hermetically sealed. Torque fasteners into threaded mounting inserts at 12 in. oz. or less. Greater torque may result in damage to unit and void the warranty. A (11) (12) (13) Fax: 508-339-0375 www.astrodyne.com Email: sales@astrodyne.com 75 Watt ASD-Q Single Series DC/DC Converters G e n e r a l S p e c i f i c a ti o n s A l l Mo d e l s R e m o te O N /O F F F u n c ti o n H I G H L ogic L eve l or L e a ve O N /O F F P in O pe n E x te r na l L e a k a ge C urre nt A llowe d for L ogic H igh ( 9 ) I nput D iode P rote c tion Volta ge L O W L ogic L eve l or T ie O N /O F F P in to -I nput S ink ing C urre nt for L ogic L ow O pe n C irc uit Volta ge a t P rima r y O N /O F F P in ( 1 0 ) P os itive L ogic N e ga tive L ogic I dle C urre nt ( Module is O F F ) Tur n-on T ime to 1 % e rror U n i ts MI N 3.0 V DC MA X 20 A MA X 50 V DC MA X 1.0 V DC MA X 1 mA TYP TYP 5. 6 1. 5 V DC V DC TYP 6 mA DC Mechanical tolerances unless otherwise noted: X.XX dimensions: 0.020 inches X.XXX dimensions: 0.005 inches TYP P os itive L ogic O ption N e ga tive L ogic O ption P in 1 2 8 mS ec H I G H - Module O N L O W - Module O F F H I G H - Module O F F L O W - Module O N O u tp u t V o l ta g e T r i m I nput R e s is ta nc e MI N MA X TYP O pe n C irc uit Volta ge TYP Trim R a nge O u tp u t V o l ta g e R e m o te S e n s i n g Ma x imum Volta ge D rops MA X on L e a d T YP L ine R e gula tion unde r re mote s e ns ing MA X T YP L oa d R e gula tion unde r re mote s e ns ing MA X S e n s e a n d Tr im L im it Ma x imum O utput Volta ge I s o l a ti o n I nput to O utput I s ola tion* 1 0 A L e a k a ge V nom = 2 4 V mode ls V nom = 4 8 V mode ls E n v i r o n m e n ta l C a lc ula te d MT B F, B e llc ore Me thod 1 , C a s e 1 B a s e pla te O pe ra ting Te mpe ra ture R a nge S tora ge Te mpe ra ture T he r ma l I mpe da nc e ( 1 1 ) T he r ma l S hutdown B a s e pla te Te mpe ra ture ( Auto R e s ta r t) G enera l C a s e D ime ns ion A ge nc y A pprova ls P e nding 2 .5 V 0 .5 V DC 0.02 0.1 0.05 0.2 % of V o ut MA X MA X 700 1544 V DC V DC >1 , 0 0 0 , 0 0 0 Hr -4 0 100 -4 0 120 9 MI N TYP 100 110 +I N P UT -O U T P U T -S E N S E T R IM +S E N S E +O U T P U T % 1 10 MI N MA X MI N MA X TYP 3 4 5 6 7 8 % MA X C C C /W C 2. 28" x 1. 45" x 0. 50" U L /C U L 6 0 9 5 0 C ha s s is Mounting K it Torque on Mounting Ins e rts 10 % of V o ut k O hm 1 0 F u n c ti o n - I N P UT O N /O F F MS 1 8 MA X 1 2 in. oz. * Absolute Maximum Ratings. Caution: Stresses in excess of the Absolute Maximum Ratings can cause permanent damage to the device (see Note 1). 375 Forbes Blvd. Mansfield, MA 02048 Ph: 800-823-8082 Fax: 508-339-0375 www.astrodyne.com Email: sales@astrodyne.com