AET 24V&48V Input Series AET 24V&48V Input Series Technical Reference Notes Technical Reference Notes Single And Dual Output Series Single And Dual Output Series 20 Watt DC-DC Converter 20 Watt DC-DC Converter USA Europe Asia TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 www.astec.com FAX: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 A A A AE E E ET T T T 2 2 2 24 4 4 4V V V V& & & &4 4 4 48 8 8 8V V V V IIIIn n n np p p pu u u ut tt t S S S Se e e er r r riiiie e e es s s s D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s S Siin ng glle e A An nd d D Du ua all O Ou ut tp pu ut t,, 2 20 0 W Wa at tt t D DC C-D DC C C Co on nv ve er rt te er rs s S Siin ng glle e A An nd d D Du ua all O Ou ut tp pu ut t,, 2 20 0 W Wa at tt t D DC C-D DC C C Co on nv ve er rt te er rs s AET Technical Description The AET series of switching DC-DC converters is one of the most cost effective options available in component power. The AET uses an industry standard package size and pinout configuration, provides standard control, trim, func- tions. AET converters come in 24V or 48V input versions, each of which uses a 2:1 input range. Outputs are isolated from the input and the converters are capa- ble of providing up to 20 watts of output power. Fig. 1. AET Single Output Block Diagram At startup, input current passes through an input filter designed to help meet CISPR 22 level A radiated emissions, and Bellcore GR1089 conducted emis- sions. A fuse should be used in line with the input. The AET converters are pulse width modulated (PWM) and operate at a nominal fixed frequency of 280 kHz. Feedback to the PWM controller uses an opto-isolator, maintaining complete isolation between primary and sec- Fig. 2. AET Dual Output Block Diagram ondary. Caution should be taken to avoid ground loops when connecting the converter to ground. Output power is typically available within 10 ms after application of input power. AET Series Electrical Input Input The +Vin and -Vin pins are located as shown in the mechanical drawings at the end of this man- ual. AET converters have a 2:1 input voltage range; 24 Vin converters can accept 18-36 Vdc, and 48 Vin converters can accept 36-72 Vdc. Care should be taken to avoid applying reverse polarity to the converters which can damage the converter. Page 1 USA Europe Asia TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 FAX: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com A A A AE E E ET T T T 2 2 2 24 4 4 4V V V V& & & &4 4 4 48 8 8 8V V V V IIIIn n n np p p pu u u ut tt t S S S Se e e er r r riiiie e e es s s s D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s S S S Siiiin n n ng g g glllle e e e A A A An n n nd d d d D D D Du u u ua a a allll O O O Ou u u ut tt tp p p pu u u ut tt t,,,, 2 2 2 20 0 0 0 W W W Wa a a at tt tt tt t D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s Input Reverse Voltage Protection Under installation and cabling conditions where reverse polarity across the input may occur, reverse polarity protection is recommended. Protection can easily be provided as shown in Figure 3. In both cases +Vin +Vin the diode used is rated for 3A/100V. Placing the diode -Vin -Vin across the inputs rather than in-line with the input Reverse Pol rity Protection offers an advantage in that the diode only conducts in Fig. 3. Reverse Polarity Protection Circuits a reverse polarity condition, which increases circuit efficiency and thermal performance. Input Undervoltage Protection The AET is protected against undervoltage on the input. If the input voltage should drop below the acceptable range, the converter will shut down. It will automatically restart when the unvervoltage condition is removed. Input Filter Input filters are included in the converters to help achieve standard system emissions certifications. +Vin Some users however, may find that additional input C1 filtering is necessary. The AET series has an internal switching frequency of 280 kHz so a high frequency -Vin capacitor mounted close to the input terminals pro- duces the best results. To reduce reflected noise, a Fig. 4. Ripple Rejection Input Filter capacitor can be added across the input as shown in Figure 4, forming a π filter. A 47μF/100V electrolytic capacitor is recommended for C1. For conditions where EMI is a concern, a dif- L 1 ferent input filter can be used. Figure 5 shows +V in an input filter designed to reduce EMI effects. C y1 C C 1 2 L1 is a 1mH common mode inductor, C is a 1 C y2 47μF/100V electrolytic capacitor, and C is a 2 -V 1μF/100V metal film or ceramic high frequen- in cy capacitor, and C and C are each y1 y2 Fig. 5. EMI Reduction Input Filter 4700pF high frequency ceramic capacitors. When a filter inductor is connected in series with the power converter input, an input capacitor C 1 should be added. An input capacitor C should also be used when the input wiring is long, since 1 the wiring can act as an inductor. Failure to use an input capacitor under these conditions can pro- duce large input voltage spikes and an unstable output. Page 2 USA Europe Asia TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 FAX: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com A A A AE E E ET T T T 2 2 2 24 4 4 4V V V V& & & &4 4 4 48 8 8 8V V V V IIIIn n n np p p pu u u ut tt t S S S Se e e er r r riiiie e e es s s s D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s S S S Siiiin n n ng g g glllle e e e A A A An n n nd d d d D D D Du u u ua a a allll O O O Ou u u ut tt tp p p pu u u ut tt t,,,, 2 2 2 20 0 0 0 W W W Wa a a at tt tt tt t D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s Input Fusing Standard safety agency regulations require input fusing. Recommended fuse ratings for the AET Series are shown in Table 1. Nominal Input Fuse 24V 4A 48V 2A AET Series Electrical Output Table 1. Fuse Ratings Output Connections (+Vout, -Vout) Outputs on the AET series are isolated from the input and can therefore be left to float or can be grounded. Pin connections for +Vout, and -Vout are shown in the mechanical drawings at the end of this manual. Sharing Power Between Dual Outputs Each output of a dual output AET is limited to one half of the total power capacity of the converter. For example, if the positive 02AA24 output of an AET01CC48 only draws 5W, 02AA48 02AA24 the negative output will still be limited to 02AA48 10W. Voltage regulation performance is best when the outputs are balanced. Figure 6 shows typical cross regulation for a 5 volt output. Fig. 6. Cross Regulation Overcurrent Protection (OCP) AET series DC/DC converters feature fold- AET02B24 AET01C24 back current limiting as part of their Overcurrent Protection (OCP) circuits. When output current exceeds 110 to 150% of rated current, such as during a short cir- cuit condition, the output will shutdown immediately, and can tolerate short circuit conditions indefinitely. When the overcur- rent condition is removed, the converter will automatically restart. Fig. 7. Overcurrent Performance Overvoltage Protection (OVP) The AET series provides overvoltage protection on the output, which will shut the output off if the voltage exceeds 120 to 140% of the nominal output voltage. If the OVP circuit activates, power to the converter should be cycled to turn the converter back on. Page 3 USA Europe Asia TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 FAX: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com A A A AE E E ET T T T 2 2 2 24 4 4 4V V V V& & & &4 4 4 48 8 8 8V V V V IIIIn n n np p p pu u u ut tt t S S S Se e e er r r riiiie e e es s s s D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s S S S Siiiin n n ng g g glllle e e e A A A An n n nd d d d D D D Du u u ua a a allll O O O Ou u u ut tt tp p p pu u u ut tt t,,,, 2 2 2 20 0 0 0 W W W Wa a a at tt tt tt t D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s Trim +V out Load R 1 The +Vo output voltage of the AET series can be -V out R 2 trimmed using the trim pin provided. Applying a RT = 100k Ω Trim voltage to the trim pin through a voltage divider from the output will cause the +Vo output to Single Output Converters Dual Output Converters increase or decrease by up to 10%. Trimming up  10% 5%  10% 5%  R1 R2 R1 R2  R1 R2 R1 R2 by more than 10% of the nominal output may acti- 3.3V out 5V out 33 12 63 22 vate the OVP circuit or damage the converter. 5V out 8.6 11 16 22 12V out 120 11 20020 15V out 150 10 27020 12V out 47 12 86 22 Trimming down more than 10% can cause the 15V out 68 12 12022 converter to regulate improperly. If the trim pin is All resistor values in kΩ not needed, it should be left open. Fig. 8. Variable Trim p +V out +V out Load R 1 Load -V out -V out All resistor R 2 All resistor values in kΩ Trim values in kΩ Trim Dual Output Converters Single Output Converters Single Output Converters Dual Output Converters 2.54 1.25 1.55 1.25 3.3V out: R = - 4.08 5V out: R = - 2.69 1 1 3.3V out: R = 5V out: R2 = y y 2 y y 1.25 7.49 1.25 1.97 5V out: R = - 2.69 12V out: R = - 9.46 1 1 5V out: R = 12V out: R = y 2 2 y y y 7.49 10.38 1.97 2.08 12V out: R = - 9.46 15V out: R1 = - 12.45 1 12V out: R = 15V out: R = y y 2 2 y y 10.38 2.08 15V out: R = - 12.45 1 15V out: R = y 2 V - V y e o V - V where y = o e where y = V e Ve V - V e o V - V where y = o e where y = V e V e Fig. 9. Fixed Trim Up Fig. 10. Fixed Trim Down Fixed and variable trim circuits are shown in Figures 8 to 10. Note that resistor values will change depending on the converter used. For trim ranges not listed, contact the factory for assistance. Control Function The AET provides a control function allowing the user to turn the output on and off using an exter- nal circuit. Applying a voltage less than 4V to the CNT pin will disable the output, while applying a voltage greater than 7V will enable it. The performance of the converter between these two points will depend on the individual converter and whether the control voltage is increasing or decreasing. If the CNT pin is left open, the converter will default to “control on” and the output can be turned on. The maximum voltage that can be applied to the control pin is 80 volts. CNT CNT CNT CNT -V in -V in -V -V in in Fig. 13. Isolated Control Fig. 14. Relay Control Fig. 11. Simple Control Fig. 12. Transistor Circuit Circuit Control Circuit Circuit Page 4 USA Europe Asia TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 FAX: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com A A A AE E E ET T T T 2 2 2 24 4 4 4V V V V& & & &4 4 4 48 8 8 8V V V V IIIIn n n np p p pu u u ut tt t S S S Se e e er r r riiiie e e es s s s D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s S S S Siiiin n n ng g g glllle e e e A A A An n n nd d d d D D D Du u u ua a a allll O O O Ou u u ut tt tp p p pu u u ut tt t,,,, 2 2 2 20 0 0 0 W W W Wa a a at tt tt tt t D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s Output Filters When the load is sensitive to ripple and noise, an output fil- +V ter can be added to minimize the effects. A simple output fil- out +V in C 1 ter to reduce output ripple and noise can be made by con- Load -V in necting a capacitor across the output as shown in Figure -V out 15. The recommended value for the output capacitor is Fig. 15. Output Ripple Filter 100μF. Extra care should be taken when long leads or traces are +V out used to provide power to the load. Long lead lengths C C Load 1 2 increase the chance for noise to appear on the lines. Under -V out these conditions C2 can be added across the load as shown in Figure 16. The recommended component for C2 is 1μF Fig. 16. Output Ripple Filter for a ceramic capacitor. Distant Load Decoupling Noise on the power distribution system is not always created by the converter. High speed analog or digital loads with dynamic power demands can cause noise to cross the power inductor back onto the input lines. Noise can be reduced by decoupling the load. In most cases, connecting a 10 μF tantalum capacitor in parallel with a 0.1μF ceramic capacitor across the load will decouple it. The capacitors should be connected as close to the load as possible. Series Operation When converters are connected in series to increase the out- +V out put voltage, diodes should be added as shown in Figure 17. +V in Choose low forward voltage drop diodes, such as shottky -V in -V out diodes. The reverse voltage of the diode should be greater Load +V out +V in than the output voltage, and the diode’s turn-on current should be greater than the series load current. The maximum -V in -V out operating output current of the series connection should not be greater than the maximum output current of any single Fig. 17. Series Operation converter. Parallel Operation Under most circumstances, paralleling converters is not desireable. When more power is required, a higher power converter will usually use less space and will cost less than using two lower power converters. One common exception is when redundancy or graceful degradation is required. In this case, multiple converters should be used. Please see the discussion on Redundant Operation in the Design Considerations section for further information. Page 5 USA Europe Asia TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 FAX: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com A A A AE E E ET T T T 2 2 2 24 4 4 4V V V V& & & &4 4 4 48 8 8 8V V V V IIIIn n n np p p pu u u ut tt t S S S Se e e er r r riiiie e e es s s s D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s S S S Siiiin n n ng g g glllle e e e A A A An n n nd d d d D D D Du u u ua a a allll O O O Ou u u ut tt tp p p pu u u ut tt t,,,, 2 2 2 20 0 0 0 W W W Wa a a at tt tt tt t D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s Design Considerations Parallel Power Distribution I I I I I I 1 + 2 + 3 2 + 3 3 Figure 18 shows a typical parallel power distribution R R R L1 L2 L3 design. Such designs, sometimes called daisy chains, can +Vout Load 1 Load 2 Load 3 be used for very low output currents, but are not normally -Vout recommended. The voltage across loads far from the R R G2 R G1 G3 R = Lead Resistance L source can vary greatly depending on the IR drops along R = Ground Lead Resistance G the leads and changes in the loads closer to the source. Fig. 18. Parallel Power Distribution Dynamic load conditions increase the potential problems. Radial Power Distribution Radial power distribution is the preferred method of pro- +Vout R L3 viding power to the load. Figure 19 shows how individual R L1 R L2 Load 1 Load 2 Load 3 loads are connected directly to the power source. This R R G2 G1 R G3 -Vout arrangement requires additional power leads, but it avoids R = Lead Resistance L R = Ground Lead Resistance G the voltage variation problems associated with the parallel Fig. 19. Radial Distribution power distribution technique. Mixed Distribution In the real world a combination of parallel and radial +Vout R R L3 L4 power distribution is often used. Dynamic and high current R L1 R L2 Load 1 Load 2 Load 3 Load 4 loads are connected using a radial design, while static R R G2 G1 R R G3 G4 -Vout and low current loads can be connected in parallel. This R = Lead Resistance L R = Ground Lead Resistance combined approach minimizes the drawbacks of a paral- G Fig. 20. Mixed Distribution lel design when a purely radial design is not feasible. Redundant Operation A common requirement in high reliability systems is to provide redundant power supplies. The easiest way to do this is to place two converters in parallel, providing fault tolerance but not load sharing. Oring diodes should be used to ensure that failure of one converter will not cause failure of the second. Figure 21 shows such an arrangement. Upon application of power, one of the con- verters will provide a slightly higher output voltage and will support the full load demand. The second conveter will see +V out a zero load condition and will “idle”. If the first converter -V out Load should fail, the second converter will support the full load. When designing redundant converter circuits, Shottky +V out diodes should be used to minimize the forward voltage drop. -V out The voltage drop across the Shottky diodes must also be Fig 21. Redundant Operation considered when determining load voltage requirements. Page 6 USA Europe Asia TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 FAX: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com A A A AE E E ET T T T 2 2 2 24 4 4 4V V V V& & & &4 4 4 48 8 8 8V V V V IIIIn n n np p p pu u u ut tt t S S S Se e e er r r riiiie e e es s s s D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s S S S Siiiin n n ng g g glllle e e e A A A An n n nd d d d D D D Du u u ua a a allll O O O Ou u u ut tt tp p p pu u u ut tt t,,,, 2 2 2 20 0 0 0 W W W Wa a a at tt tt tt t D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s Ground Loops Ground loops occur when different circuits are given multiple paths to common or earth ground, as shown in Figure 22. Multiple ground points can have slightly different potential and cause current flow through the circuit from one point to another. This can result in additional noise in all the circuits. To eliminate the problem, circuits should be designed with a single ground connec- tion as shown in Figure 23. R Line R Line R Line R Line +Vout +Vout Load Load Load Load R Line R Line -Vout -Vout R Line R Line R R Line Ground Line R Line Loop Fig. 22 Ground Loops Fig. 23. Single Point Ground Hot Plugging When a power source or load is inserted or removed from a system while the system is opera- tional, it is called “hot plugging”. Designing a system for hot plug operation is challenging and sev- eral issues should be considered. The input to a converter is largely capacitive and it will draw a high inrush current when power is first applied. This will place a large demand on the power bus which must be designed to handle the current spike. It also presents the risk of arcing when the converter is connected. A common way to minimize inrush current is to disable the output until after the inrush current has subsided. Disabling the output eliminates power draw from the converter and reduces capacitor charge times. The output only has to be disabled for a very short time and can usually be done through mechanical connections. Making the input connections physically longer lets them con- nect first and initiate the inrush current. When the shorter output or output enable connections are made, the inrush has already subsided. Page 7 USA Europe Asia TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 FAX: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com Maximum Case Temperature A A A AE E E ET T T T 2 2 2 24 4 4 4V V V V& & & &4 4 4 48 8 8 8V V V V IIIIn n n np p p pu u u ut tt t S S S Se e e er r r riiiie e e es s s s D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s S S S Siiiin n n ng g g glllle e e e A A A An n n nd d d d D D D Du u u ua a a allll O O O Ou u u ut tt tp p p pu u u ut tt t,,,, 2 2 2 20 0 0 0 W W W Wa a a at tt tt tt t D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s AET Series Mechanical Considerations Thermal Derating AET single and dual output converters are rated for full power up to a case temperature of 95°C. Under AV20 Temperature Derating 100 typical conditions this equates to an ambient tem- 80 perature of 65°C. For operation above ambient air Safe Operating Area 60 temperatures of 65°C, output power must be derat- 40 ed as shown in Figure 24, or airflow over the con- 20 verter must be provided. When airflow is provided, 0 -20 -10 0 10 20 30 40 50 60 70 80 90 100 the case temperature should be used to determine O Ambient Temperature ( C) maximum temperature limits. The minimum operat- Fig. 24. Temperature Derating ing temperature for the AET is -25°C. Operation at temperatures as low as -40°C is possible, but out- put performance below -25°C is not specified. Installation AET series converters can be mounted in any orientation, but care should be taken to allow for free airflow. Common placement techniques put heat sources such as power components at the end of the airflow path or provide separate airflow paths. This arrangement keeps other system equipment cooler and increases component life spans. Soldering AET series converters are compatible with standard wave soldering techniques. When wave sol- dering, the converter pins should be preheated for 20-30 seconds at 110°C, and wave soldered at 260°C for less than 15 seconds. When hand soldering, the iron temperature should be maintained at 450°C and applied to the converter pins for less than 5 seconds. Longer exposure can cause internal damage to the con- verter. Cleaning can be performed with cleaning solvent IPA or with water. Page 8 USA Europe Asia TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 FAX: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com Percent maximum output power A A A AE E E ET T T T 2 2 2 24 4 4 4V V V V& & & &4 4 4 48 8 8 8V V V V IIIIn n n np p p pu u u ut tt t S S S Se e e er r r riiiie e e es s s s D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s S S S Siiiin n n ng g g glllle e e e A A A An n n nd d d d D D D Du u u ua a a allll O O O Ou u u ut tt tp p p pu u u ut tt t,,,, 2 2 2 20 0 0 0 W W W Wa a a at tt tt tt t D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s Electrical Specs Nominal Output Output Short Circuit Overvoltage Input Voltage Current Current Ripple Noise Efficiency Lockout (V) (V) (A) (A) (mV rms) (mV pp) (%) (V) typ typ max typ max min typ min max AET04F24 24 3.3 4 5.4 10 20 50 75 78 80 4.2 5.2 AET04A24 24 5 4 5 10 20 50 75 81 83 6 7 AET02B24 24 12 1.67 2.7 10 20 80 100 84 86 16 18 AET01C24 24 15 1.33 2 10 20 80 100 84 87 20 22 AET04F48 48 3.3 4 5.4 10 20 50 75 78 80 4.2 5.2 AET04A48 48 5 4 5 10 20 50 75 81 83 6 7 AET02B48 48 12 1.67 2.7 10 20 80 100 84 87 16 18 AET01C48 48 15 1.33 2 10 20 80 100 84 87 20 22 AET02AA24 24 ±5 ±2 2.4 10 20 80 100 81 83 ±6 ±8 AET01BB24 24 ±12 ±0.84 1.5 10 20 80 100 84 86 ±16 ±17 AET01CC24 24 ±15 ±0.67 1.1 10 20 80 100 84 85 ±19 ±21 AET02AA48 48 ±5 ±2 2.7 10 20 80 100 82 83 ±6 ±8 AET01BB48 48 ±12 ±0.84 1.4 10 20 80 100 84 86 ±16 ±17 AET01CC48 48 ±15 ±0.67 1.2 10 20 80 100 84 88 ±19 ±21 +Vo 40.6 (1.60) 10.16 (0.40) 40.6 (1.60) +Vo COM +Vin +Vin 5.08 (0.20) 5.08 (0.20) 10.16 (0.40) 10.16 (0.40) -Vin -Vin -Vo -Vo 10.16 (0.40) 10.16 (0.40) 10.16 (0.40) 10.16 (0.40) CNT CNT Trim Trim 7.62 (0.30) 7.62 (0.30) 5.08 (0.20) 5.08 (0.20) 2.54 (0.10) 2.54 (0.10) 45.72 (1.80) 45.72 (1.80) 50.8 (2.00) 50.8 (2.00) 9.66 (0.38) 9.66 (0.38) 5.3 (0.21) 5.3 (0.21) Standoff 0.5 (0.02) Standoff 0.5 (0.02) Typ, 4 Places Typ, 4 Places 2.4 (0.09) 2.4 (0.09) 5.36 (0.21) 5.36 (0.21) 3.0 (0.12) 3.0 (0.12) 6-φ1.0 (0.039) 7-φ1.0 (0.039) AET Dual Output AET Single Output Page 9 USA Europe Asia TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 FAX: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com A A A AE E E ET T T T 2 2 2 24 4 4 4V V V V& & & &4 4 4 48 8 8 8V V V V IIIIn n n np p p pu u u ut tt t S S S Se e e er r r riiiie e e es s s s D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s S S S Siiiin n n ng g g glllle e e e A A A An n n nd d d d D D D Du u u ua a a allll O O O Ou u u ut tt tp p p pu u u ut tt t,,,, 2 2 2 20 0 0 0 W W W Wa a a at tt tt tt t D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s Common Specs Input Min Nom Max Units Notes Input Voltage 18 24 36 Vdc 50 Vdc max < 100 ms 36 48 72 Vdc 100 Vdc max < 100 ms Isolation Input-Output 500 Vdc Input-Case 500 Vdc Output-Case 500 Vdc I/O Isolation Restistance 300 MΩ Control Voltage 80 Vdc absolute maximum Control Logic Logic Low = Off 4 Vdc Logic High = On 7 Vdc Control Current 1.8 mA Undervoltage Shutdown 24 Vin 13 15 17 Vdc 48 Vin 30 32 34 Vdc Output Power 20 W Voltage Setpoint Accuracy ±1 %Vo Line Regulation ±0.02 ±0.2 %Vo Load Regulation ±0.1 ±0.5 %Vo Trim Range -10 +10 %Vo Dynamic Response 50-75% load 4 %Vo T=25°C, DI/Dt=1A/10µs 200 µs T=25°C, DI/Dt=1A/10µs 50-25% load 4 %Vo T=25°C, DI/Dt=1A/10µs 200 µs T=25°C, DI/Dt=1A/10µs Temperature Regulation ±0.02 %Vo/°C General MTBF 2,400 k Hrs Bellcore TR332, 25°C Case Temperature -25 95 °C Storage Temperature -40 105 °C Switching Frequency 280 kHz Pin solder temperature 260 °C wave solder < 15 s Hand Soldering Time 5 s iron temperature 450°C Weight 48 grams Page 10 USA Europe Asia TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 FAX: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com A A A AE E E ET T T T 2 2 2 24 4 4 4V V V V& & & &4 4 4 48 8 8 8V V V V IIIIn n n np p p pu u u ut tt t S S S Se e e er r r riiiie e e es s s s D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s S S S Siiiin n n ng g g glllle e e e A A A An n n nd d d d D D D Du u u ua a a allll O O O Ou u u ut tt tp p p pu u u ut tt t,,,, 2 2 2 20 0 0 0 W W W Wa a a at tt tt tt t D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s AET-S Performance Curves AET04F48 AET04F24 AET04A48 AET04A24 AET02B48 AET02B24 AET01C48 AET01C24 AET04F24 AET04A24 AET02B24 AET01C24 AET04F48 AET04A48 AET02B48 AET01C48 AET Single Output Typical Turn Off Delay from CNT Off AET Single output Typical Startup Delay from CNT On Page 11 USA Europe Asia TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 FAX: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com A A A AE E E ET T T T 2 2 2 24 4 4 4V V V V& & & &4 4 4 48 8 8 8V V V V IIIIn n n np p p pu u u ut tt t S S S Se e e er r r riiiie e e es s s s D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s S S S Siiiin n n ng g g glllle e e e A A A An n n nd d d d D D D Du u u ua a a allll O O O Ou u u ut tt tp p p pu u u ut tt t,,,, 2 2 2 20 0 0 0 W W W Wa a a at tt tt tt t D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s AET-S Performance Curves AET02B24 AET01C24 AET02B48 AET01C48 AET04F24 AET04F48 AET04A48 AET04A24 AET01C24 AER01C24 Page 12 USA Europe Asia TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 FAX: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com A A A AE E E ET T T T 2 2 2 24 4 4 4V V V V& & & &4 4 4 48 8 8 8V V V V IIIIn n n np p p pu u u ut tt t S S S Se e e er r r riiiie e e es s s s D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s S S S Siiiin n n ng g g glllle e e e A A A An n n nd d d d D D D Du u u ua a a allll O O O Ou u u ut tt tp p p pu u u ut tt t,,,, 2 2 2 20 0 0 0 W W W Wa a a at tt tt tt t D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s AET-D Performance Curves AET02AA48 AET01BB48 AET01CC48 AET02AA24 AET01BB24 AET01CC24 AET02AA24 AET02AA48 AET01BB24 AET01BB48 AET01CC24 AET01CC48 AEE Dual Output Typical Turn Off Delay from CNT Off AEE Dual Output Typical Startup Delay from CNT On Page 13 USA Europe Asia TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 FAX: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com A A A AE E E ET T T T 2 2 2 24 4 4 4V V V V& & & &4 4 4 48 8 8 8V V V V IIIIn n n np p p pu u u ut tt t S S S Se e e er r r riiiie e e es s s s D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s S S S Siiiin n n ng g g glllle e e e A A A An n n nd d d d D D D Du u u ua a a allll O O O Ou u u ut tt tp p p pu u u ut tt t,,,, 2 2 2 20 0 0 0 W W W Wa a a at tt tt tt t D D D DC C C C--D D D DC C C C C C C Co o o on n n nv v v ve e e er r r rt tt te e e er r r rs s s s AET-D Performance Curves AET01BB24 AET01BB48 AET01CC24 AET01CC48 02AA24 02AA48 02AA24 02AA48 AET02AA24 AET02AA48 01CC24 01CC48 01BB24 01BB48 01CC24 01BB24 01CC48 01BB48 Page 14 USA Europe Asia TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662 FAX: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com