Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) AEO40x48 / ALO40x48 Single Output 8th Brick: Baseplate or Open-Frame Module The AEO40x48 / ALO40x48 series is Astec’s High Current 8th Brick industry standard offering. Operating from an input voltage range of 36V to 75V, the series provides 7 configured outputs starting from 1.2V all the way up to 12V. It delivers up to 40A max current for 1.8V and lower at impressive levels of efficiency. It provides tight regulation and exhibits clean and monotonic output start up characteristics. The AEO_ALO series comes with industry standard features such as Input UVLO; non-latching OCP, OVP and OTP; Output Trim; Differential Remote Sense pins. Both baseplate (AEO) and open frame (ALO) construction are available as well as TH or SMT termination. With its wide operating temperature range of -40°C to 85°C ambient, the converters are deployable into almost any environment. Electrical Parameters Input Input Range Input Surge 36-75 VDC 100V / 100ms Control Enable TTL compatible (Positive or Negative Logic Enable Options) Output Special Features • • • • • • • • Industry Standard 8th Brick Footprint Baseplate or Open frame construction Low Ripple and Noise Regulation to zero load High Capacitive Load Start-up Fixed Switching Frequency Industry standard features: Input UVLO; Enable; non-latching OVP, OCP and OTP; Output Trim, Differential Remote Sense Meets Basic Insulation Load Current Line/Load Regulation Ripple and Noise Output Voltage Adjust Range Transient Response Remote Sense Over Current Protection Over Voltage Protection Over Temperature Protection Up to 40A max (VO ≤ 1.8V) < 1% VO 40mVP-P typical ±10% VO 2% Typical deviation 50% to 75% Load Change 20µs settling time (Typ) +10%VO 120% max 130% max 110 °C Environmental Specifications Safety • • • UL + cUL 60950, Recognized EN60950 through TUV-PS -40ºC to 85ºC Operating Temperature -55ºC to 125ºC Storage Temperature MTBF > 1 million hours MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B SHEET 1 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Electrical Specifications ABSOLUTE MAXIMUM RATINGS Stresses in excess of the absolute maximum ratings can cause permanent damage to the converter. Functional operation of the device is converter is not implied at these or any other conditions in excess of those given in the operational section of the specs. Exposure to absolute maximum ratings for extended period can adversely affect device reliability. Parameter Input Voltage Continuous Transient (100ms) I/O Isolation Input-to-Output 1 Operating Temperature Storage Temperature Operating Humidity Max Voltage at Enable Pin Max Output Power Device Symbol Min Typical Max Unit All Vin Vin trans -0.3 - - 75 100 Vdc All TA TSTG - 1500 -40 -55 10 -0.6 - - 85 125 85 25 120.0 100.0 99.0 88.0 72.0 60.0 48.0 Vdc ºC ºC % Vdc W All All All All B (12V0) A (5V0) F (3V3) G (2V5) Y (1V8) M (1V5) K (1V2) PO,MAX - INPUT SPECIFICATION Operating Input Voltage Range Input Under-Voltage Lock-out T_ON Threshold T_OFF Threshold Max Input Current2 Standing Loss Input Ripple Current3 Inrush Current MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B Device All Symbol VIN All B (12V0) A (5V0) F (3V3) G (2V5) Y (1V8) M (1V5) K (1V2) B (12V0) A (5V0) F (3V3) G (2V5) Y (1V8) M (1V5) K (1V2) All All Iin max II1 i2t Min 36 Typical 48 Max 75 Unit Vdc 33 31 - 34 32 - Vdc - 10 0.01 36 34 4.2 3.5 3.5 3.3 3.0 2.7 2.5 4.0 4.0 4.0 4.0 4.5 3.5 3.0 30 - A W mAp-p A2s SHEET 2 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Electrical Specifications (continued) OUTPUT SPECIFICATIONS Parameter Output Voltage Set point VIN = VIN,MIN to VIN,MAX IO = IO,MAX Output Regulation Line VIN = VIN,MIN to VIN,MAX Load VIN = VIN,NOM IO = IO,MIN to IO,MAX Temp VIN = VIN,NOM; IO = IO,MAX Output Ripple and Noise4 Peak-to-Peak IO = IO,MAX; VIN =VIN,NOM; BWL = 20 MHz; TA =25 oC Output Current5 Output Current-limit Inception VO = 90% VO,NOM; TA = 25 ºC VIN = VIN,NOM Non-latching / auto-recovery External Load Capacitance IO = IO,MAX , resistive load ESR MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B Device B (12V0) A (5V0) F (3V3) G (2V5) Y (1V8) M (1V5) K (1V2) All B (12V0) A (5V0) F (3V3) G (2V5) Y (1V8) M (1V5) K (1V2)) B (12V0) A (5V0) F (3V3) G (2V5) Y (1V8) M (1V5) K (1V2) B (12V0) A (5V0) F (3V3) G (2V5) Y (1V8) M (1V5) K (1V2) All B (12V0) A (5V0) F (3V3) Symbol VO,SET Min 11.80 4.90 3.25 2.45 1.76 1.47 1.17 Typical 12.00 5.00 3.30 2.50 1.80 1.50 1.20 Max 12.20 5.10 3.35 2.55 1.84 1.53 1.22 Unit Vdc - - 0.1 0.2 % - - 0.1 0.5 - - 0.5 1.0 - - IO 0 0 0 0 0 0 0 11.5 24.0 33.0 41.0 44.0 44.0 44.0 4 50 40 40 20 40 30 20 - 120 90 75 75 60 60 60 10 20 30 35 40 40 40 17.0 32.0 41.5 49.0 78.0 78.0 78.0 20,000 1,500 10,000 10,000 - IO,OCP CEXT mVp-p A A µF mΩ SHEET 3 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Electrical Specifications (continued) OUTPUT SPECIFICATIONS Parameter Efficiency VIN = VIN,NOM; IO = IO,MAX TA = 25 ºC; Device B (12V) A (5.0V) F (3.3V) G (2.5V) Y (1.8V) M (1.5V) K (1.2V) Output Over Voltage Protection Non-latching / autorecovery B (12V) A (5.0V) F (3.3V) G (2.5V) Y (1.8V) M (1.5V) K (1.2V) Over Temperature Protection Autorecovery Input to Output Turn-On Delay VIN = VIN,NOM, IO = IO,MAX Enable to Output Turn-On Delay VIN = VIN,NOM, IO = IO,MAX Output Voltage Rise Time 10% to 90% of VO,NOM VIN = VIN,NOM, IO = IO,MAX Switching Frequency Output Voltage Remote Sensing Output Voltage Trim Range6 Output Voltage Overshoot Dynamic Response di/dt = 0.1 A/µs Peak Deviation ∆IO = 50% to 75% of Iomax Settling Time Vref = Vonom Peak Deviation ∆IO = 50% to 25% of Iomax Settling Time Vref = Vonom MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B All All 5V, 12V All 5V, 12V Symbol η η η η η η η VO,OVP - Min 91.0 92.0 90.0 89.0 88.0 85.5 84.0 Typical 92.0 93.0 91.0 90.0 89.5 88.0 86.0 Max 93.0 94.0 93.0 92.0 90.5 89.5 87.5 Unit % 13.80 5.80 3.80 2.90 2.10 1.75 1.38 14.40 6.00 4.00 3.00 2.30 1.85 1.50 15.00 6.20 4.30 3.20 2.50 2.38 1.80 V 110 - - 120 17 20 17 20 °C ms 3.0 4.0 9.0 450 - ms 0 9.0 11.0 16.0 520 10 110 3 kHz %VO %VO %Vo ms All 5V 12V All All All All FSW - 380 90 - All - - 2 5 % All - - - 250 µs All - - 2 5 % All - - - 250 µs - SHEET 4 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Electrical Specifications (continued) OUTPUT SPECIFICATIONS Parameter Output Enable ON/OFF Open collector TTL compatible Device Symbol Positive Enable: Mod-ON Mod-OFF All All - Negative Enable: Mod-ON Mod-OFF All All - Note: Min Typical Max Unit 2.95 -0.50 - 20 1.20 V V -0.50 2.95 - 1.20 20 V V 1. Derating curves for both openframe and baseplate modules are based on derated component junction temperatures of 120oC or less where applicable. 2. Module is not internally fuesd; an external input line fuse is recommended for use (e.g. Littlefuse® 465 Series / 250V min). 3. Refer to Figure 1 for the input ripple current test measurement setup. 4. Refer to Fig 2 for the output ripple and noise test measurement setup. 5. Output derating may apply at elevated ambient temperatures. Please refer to the appropriate derating curves. 6. Refer to the output trim equations provided (Equation 1 and 2). SAFETY AGENCY / MATERIAL RATING / ISOLATION Note: Parameter Safety Approval7 Device All Material Flammability Rating Parameter Input to Output Capacitance Input to output Resistance Input to Output Insulation Type All Device All All All UL/cUL 60950, 35d Edition – Recognized EN 60950 through TUV UL94V-0 Symbol Min Typical Max 1000 10 Basic - Unit pF MOhms - 7. The 3.3V, 5V and 12V modules have completed required safety approvals. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B SHEET 5 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Electrical Specifications (continued) TO OSCILLOSCOPE Vi(+) Ltest 12 uH BATTERY Cs 220 uF ESR < 0.1 OHM @ 20 ºC, 100 kHz 33 uF ESR < 0.7 OHM @ 20 ºC, 100 kHz Vi(-) Measure input reflected-ripple current with a simulated source inductance (Ltest) of 12 uH. Capacitor Cs offsets possible battery impedance. Measure current as shown above. Figure 1. Input Reflected Ripple Current Measurement Setup. COPPER STRIP Vo(+) 0.1 uF 10 uF SCOPE RESISTIVE LOAD Vo(-) Use a 0.1µF @50V X7R ceramic capacitor (connected an inch away from the output terminals of the UUT) and a 10µF @ 25V tantalum capacitor (2 inches away from the output terminals of the UUT). Scope measurement should be made using a BNC socket, positioned 3 inches away from output terminals of the converter. Figure 2. Peak to Peak Output Noise Measurement Setup. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B SHEET 6 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Basic Operation and Features INPUT UNDER VOLTAGE LOCKOUT To prevent any instability to the converter, which may affect the end system, the converter have been designed to turn-on once VIN is in the voltage range of 33-36 VDC. Likewise, it has also been programmed to turn-off when VIN drops down to 31-34 VDC. OUTPUT VOLTAGE ADJUST/TRIM The converter comes with a TRIM pin (PIN 6), which is used to adjust the output by as much as 90% to 110% of its set point. This is achieved by connecting an external resistor as described below. To INCREASE the output, external Radj_up resistor should be connected between TRIM PIN (Pin6) and +SENSE PIN (Pin 7). Please refer to Equation (1) for the required external resistance and output adjust relationship. Equation (1a): 1.5V to 12V Radj_up = 5.1 × Voset × (100 + ∆%) 510 − − 10.2 ∆% 1.225× ∆% ΚΩ Equation (1b): 1.2V Radj_up = 5.1 × Voset × (100 + ∆%) 0.6 × ∆% Figure 3. External resistor configuration to increase the o/p. − 510 ∆% − 10.2 ΚΩ To DECREASE the output, external Radj_down resistor should be connected between TRIM pin (Pin 6) and -SENSE PIN (Pin 5). Please refer to Equation (2) for the required external resistance and output adjust relationship. Equation (2): Radj_down 510 − 10.2 ⋅ kΩ ∆% Figure 4. External resistor configuration to decrease the o/p. Where: ∆% = percent change in output voltage OUTPUT ENABLE The converter comes with an Enable pin (PIN 2), which is primarily used to turn ON/OFF the converter. Both a Positive (no “N” suffix required) and a Negative (suffix “N” required) Enable Logic options are being offered. Please refer to Table 2 for the Part Numbering Scheme. For Positive Enable, the converter is turned on when the Enable pin is at logic HIGH or left open. The unit turns off when the Enable pin is at logic LOW or directly connected to -VIN. On the other hand, the Negative Enable version turns unit on when the Enable pin is at logic LOW or directly connected to -VIN. The unit turns off when the Enable pin is at Logic HIGH. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B SHEET 7 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Basic Operation and Features (continued) OUTPUT OVER VOLTAGE PROTECTION (OVP) The Over Voltage Protection circuit is non-latching - auto recovery mode. The output of the converter is terminated under an OVP fault condition (Vo > OVP threshold). The converter will attempt to restart until the fault is removed. There is a 100ms lockout period between restart attempts. OVER CURRENT PROTECTION (OCP) The Over Current Protection is non-latching - auto recovery mode. The converter shuts down once the output current reaches the OCP range. The converter will attempt to restart until the fault is removed. There is a 100ms lockout period between restart attempts. OVER TEMPERATURE PROTECTION (OTP) The Over Temperature Protection circuit will shutdown the converter once the average PCB temperature (See Figure 90B for OTP reference sense point) reaches the OTP range. This feature prevents the unit from overheating and consequently going into thermal runaway, which may further damage the converter and the end system. Such overheating may be an effect of operation outside the given power thermal derating conditions. Restart is possible once the temperature of the sensed location drops to less than 110°C. REMOTE SENSE The remote sense pins can be used to compensate for any voltage drops (per indicated max limits) that may occur along the connection between the output pins to the load. Pin 7 (+Sense) and Pin 5 (-Sense) should be connected to Pin 8 (+Vout) and Pin 4 (Return) respectively at the point where regulation is desired. The combination of remote sense and trim adjust cannot exceed 110% of VO. When output voltage is trimmed up (through remote sensing and/or trim pin), output current must be derated and maximum output power must not be exceeded. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B SHEET 8 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Performance Curves 12V @ 10A Efficiency vs. Output Current, T A=25°C Power Dissipation vs. Output Current, TA=25°C 95% 12 90% Vin = 36V 10 Power Dissipation [W] Efficiency [%] 85% 80% 75% 70% 65% Vin = 36V 60% Vin = 48V 55% Vin = 48V Vin = 75V 8 6 4 2 Vin = 75V 0 50% 0 2 4 6 Output Current [A] 8 0 10 Figure 5. Efficiency vs. Load Current at minimum, nom and high line, TA = 25°C. 4 6 Output Current [A] 8 10 Figure 6. Power Dissipation vs. Load Current at min, nominal and high line, TA = 25°C. Efficiency vs. Output Current, T A=25°C Power Dissipation vs. Output Current, T A=25°C 95% 12 90% Vin = 36V Power Dissipation [W] 85% Efficiency [%] 2 80% 75% 70% 65% Vin = 36V 60% Vin = 48V Vin = 75V 8 6 4 2 Vin = 48V 55% 10 Vin = 75V 50% 0 0 2 4 6 Output Current [A] 8 Figure 7. Efficiency vs. Load Current at minimum, nom and high line, TA = 85°C. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B 10 0 2 4 6 Output Current [A] 8 10 Figure 8. Power Dissipation vs. Load Current at min, nominal and high line, TA = 85°C. SHEET 9 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Performance Curves 12V @ 10A (continued) Figure 9. 12V output startup characteristic at VIN = 48Vdc, IO = Full Load, TA = 25 °C, CO = 0. Figure 10. 12V output ripple at VIN = 48Vdc, IO = Full Load, TA = 25 °C. Figure 11. 12V output transient response 25% to 50% step change at VIN = 48Vdc, TA = 25 °C, CO = 0. Figure 12. 12V output transient response 50% to 75% step change at VIN = 48Vdc, TA = 25 °C, CO = 0. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B SHEET 10 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Performance Curves 12V @ 10A (continued) ALO10B48 Current vs. Temperature Output Current [A] 10 8 6 TBA 4 0 LFM (0 m/s) ** 100 LFM (0.5m/s) 2 200 LFM (1m/s) 400 LFM (3 m/s) 0 25 40 55 70 Ambient Temperature [°C] Figure 13. Output Current vs. Temperature for open frame version at VIN = 48Vdc (TJ ≤120°C). 85 Figure 14. Output Current vs. Temperature for baseplate version at VIN = 48Vdc (TJ ≤120°C). TBA Performance Curves 5V @ 20A Figure 15. Typical output frequency spectrum (0 – 500kHz) at VIN = 48Vdc, IO = 50% Load, COUT = 0. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B Figure 16. 12V Conducted EMI per Filter defined in Fig 89. VIN = 48Vdc, IO = 50% Resistive Load, TA = 25°C. SHEET 11 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Performance Curves 5V @ 20A (continued) Efficiency vs. Output Current, TA=25°C Power Dissipation vs. Output Current, TA=25°C 95% 10 90% Power Dissipation [W] Vin = 36Vdc Efficiency 85% 80% 75% 70% 65% Vin = 36Vdc 60% Vin = 48Vdc 8 Vin = 48Vdc Vin = 75Vdc 6 4 2 Vin = 75Vdc 55% 0 50% 0 4 8 12 16 Output Current (Amps) 0 20 Figure 17. Efficiency vs. Load Current at minimum, nom and high line, TA = 25°C. 20 Figure 18. Power Dissipation vs. Load Current at min, nominal and high line, TA = 25°C. Efficiency vs. Output Current, T A = 85°C Power Dissipation vs. Output Current, TA=85°C 95% 10 90% Power Dissipation (W) Vin = 36Vdc 85% Efficiency 5 10 15 Output Current (Amps) 80% 75% 70% 65% Vin = 36Vdc 60% Vin = 48Vdc 55% Vin = 75Vdc 50% 8 Vin = 48Vdc Vin = 75Vdc 6 4 2 0 0 4 8 12 16 Output Current (Amps) Figure 19. Efficiency vs. Load Current at minimum, nom and high line, TA = 85°C. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B 20 0 5 10 15 Output Current (Amps) 20 Figure 20. Power Dissipation vs. Load Current at minimum, nominal and high line, TA = 85°C. SHEET 12 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Performance Curves 5V @ 20A (continued) Figure 21. 5V output startup characteristic at VIN = 48Vdc, IO = Full Load, TA = 25 °C, CO = 0. Figure 22. 5V output ripple at VIN = 48Vdc, IO = Full Load, TA = 25 °C. Figure 23. 5V output transient response 25% to 50% step change at VIN = 48Vdc, TA = 25 °C, CO = 0. Figure 24. 5V output transient response 50% to 75% step change at VIN = 48Vdc, TA = 25 °C, CO = 0. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B SHEET 13 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Performance Curves 5V @ 20A (continued) AEO20A48 Current vs. Temperature 20 20 15 15 Current [A] Output Current (Amps) ALO20A48 Current vs. Temperature 10 0 LFM (0 m/s) 100 LFM (0.5m/s) 5 10 0 LFM (0m/s 100 LFM (0.5m/s) 5 200 LFM (1m/s) 200 LFM (1m/s) 400 LFM (2 m/s) 400 LFM (3 m/s) 0 0 25 35 45 55 65 Temperature (°C) 75 25 85 Figure 25. Output Current vs. Temperature for open frame version at VIN = 48Vdc (TJ ≤120°C). 40 55 70 Ambient Temperature [°C] 85 Figure 26. Output Current vs. Temperature for baseplate version at VIN = 48Vdc (TJ ≤120°C). 2.5E+07 1.5E+07 9.7E+06 6.1E+06 3.9E+06 2.4E+06 1.5E+06 9.6E+05 6.0E+05 3.8E+05 2.4E+05 1.5E+05 db/uV ALO20A48 Conducted EMI 100 90 80 70 60 50 40 30 20 10 0 Frequency Figure 27. Typical output frequency spectrum (0 – 500kHz) at VIN = 48Vdc, IO = 50% Load, COUT = 0. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B Figure 28. 5V Open frame Conducted EMI per Filter defined in Fig 89. VIN = 48Vdc, IO = 50% Resistive Load, TA = 25°C. SHEET 14 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Performance Curves 3.3V @ 30A Efficiency vs. Output Current T A=25°C Power Dissipation vs. Output Current, TA=25°C 14 95% Power Dissipation (Watts) 90% Efficiency 85% 80% 75% 70% 65% Vin = 36Vdc 60% Vin = 48Vdc 55% Vin = 36Vdc Vin = 48Vdc 10 Vin = 75Vdc 8 6 4 2 Vin = 75Vdc 50% 0 0 5 10 15 20 Output Current (Amps) 25 0 30 Figure 29. Efficiency vs. Load Current at minimum, nominal and high line, TA = 25°C. 90% 12 power Dissipation (Watts) 14 85% 80% 75% 70% 65% Vin = 36Vdc Vin = 48Vdc 55% 10 15 20 Output Current (Amps) 25 30 Power Dissipation vs. Output Current, TA=85°C 95% 60% 5 Figure 30. Power Dissipation vs. Load Current at minimum, nominal and high line, TA = 25°C. Efficiency vs. Output Current, TA=85°C Efficiency 12 Vin = 36Vdc Vin = 48Vdc Vin = 75Vdc 10 8 6 4 2 Vin = 75Vdc 0 50% 0 5 10 15 20 Output Current (Amps) 25 Figure 31. Efficiency vs. Load Current at minimum, nominal and high line, TA = 85°C. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B 30 0 5 10 15 20 Output Current (Amps) 25 30 Figure 32. Power Dissipation vs. Load Current at minimum, nominal and high line, TA = 85°C. SHEET 15 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Performance Curves 3.3V @ 30A (continued) Figure 33. 3.3V output startup characteristic at VIN = 48Vdc, IO = Full Load, TA = 25 °C, CO = 0. Figure 34. 3.3V output ripple at VIN = 48Vdc, IO = Full Load, TA = 25 °C. Figure 35. 3.3V output transient response 25% to 50% step change at VIN = 48Vdc, TA = 25 °C, CO = 0. Figure 36. 3.3V output transient response 50% to 75% step change at VIN = 48Vdc, TA = 25 °C, CO = 0. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B SHEET 16 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Performance Curves 3.3V @ 30A (continued) AEO30F48 Current vs. Temperature 30 30 25 25 20 20 Current [A] 15 0 LFM (0 m/s) 10 15 0 LFM (0 m/s) 10 100 LFM (0.5m/s) 100 LFM (0.5m/s) 200 LFM (1m/s) 5 200 LFM (1m/s) 5 400 LFM (2 m/s) 400 LFM (2 m/s) 0 0 55 70 Ambient Temperature [°C] 25 85 40 ALO30F48 Conducted EMI -2.00E+01 -4.00E+01 Frequency (Hz) Figure 39. Typical output frequency spectrum at VIN = 48Vdc, IO = 100% Load, COUT = 0. 2.5E+07 1.6E+07 9.8E+06 6.2E+06 3.9E+06 2.4E+06 1.0E+06 8.0E+05 6.0E+05 4.0E+05 2.0E+05 -1.00E+02 1.5E+06 -8.00E+01 2.4E+05 960kHz 1.5E+05 480kHz 0.0E+00 100 90 80 70 60 50 40 30 20 10 0 db/uV dBm 85 Figure 38. Output Current vs. Temperature for baseplate version at VIN = 48Vdc (TJ ≤120°C). Output Frequency Spectrum, 0 - 1MHz 0.00E+00 MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B 70 Ambient Temperature [°C] Figure 37. Output Current vs. Temperature for open frame version at VIN = 48Vdc (TJ ≤120°C). -6.00E+01 55 9.6E+05 40 6.0E+05 25 3.8E+05 Current [A] ALO30F48 Current vs. Temperature Frequency Figure 40. 3.3V Open frame Conducted EMI per Filter defined in Fig 89. VIN = 48Vdc, IO = 100% Resistive Load, CIN =220uF, COUT = 4700uF, TA = 25°C. SHEET 17 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Performance Curves 1.8V @ 40A Efficiency vs. Output Current, TA=25°C Power Dissipation vs. Output Current, TA=25°C 12 95% Power Dissipation [W] 90% Efficiency [%] 85% 80% 75% 70% Vin = 36V 65% Vin = 48V 60% Vin = 75V 10 Vin = 36V Vin = 48V 8 Vin = 75V 6 4 2 55% 50% 0 0 5 10 15 20 25 30 35 40 0 5 10 Output Current [A] 20 25 30 35 40 Output Current [A] Figure 53. Efficiency vs. Load Current at minimum, nom and high line, TA = 25°C. Figure 54. Power Dissipation vs. Load Current at min, nominal and high line, TA = 25°C. Power Dissipation vs. Output Current, T A=85°C Efficiency vs. Output Current, T A=85°C 12 95% Power Dissipation [W] 90% 85% Efficiency [%] 15 80% 75% 70% 65% 60% Vin = 36V 55% Vin = 75V 10 Vin = 36V Vin = 48V 8 Vin = 75V 6 4 2 Vin = 48V 0 50% 0 5 10 15 20 25 Output Current [A] 30 35 Figure 55. Efficiency vs. Load Current at minimum, nom and high line, TA = 85°C. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B 40 0 5 10 15 20 25 Output Current [A] 30 35 40 Figure 56. Power Dissipation vs. Load Current at minimum, nom and high line, TA = 85°C. SHEET 18 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Performance Curves 1.8V @ 40A (continued) Figure 57. 1.8V [Ch1] startup characteristic at VIN = 48V, IO = 40A, TA = 25°C. Figure 58. Output ripple at VIN = 48V, IO = 40A, TA = 25°C (See Fig 2). Figure 59. Output transient response at 50% to 75% step, VIN = 48V, TA = 25°C, CO = 0. Figure 60. Output transient response at 25% to 50% step, VIN = 48V, TA = 25°C, CO = 0. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B SHEET 19 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Performance Curves 1.8V @ 40A (continued) AEO40Y48 Current vs. Temperature 40 40 35 35 30 30 Output Current [A] Output Current (Amps) AL040Y48 Current vs. Temperature 25 20 0 LFM (0 m/s) 15 100 LFM (0.5m/s) 25 20 15 10 200 LFM (1m/s) 10 5 400 LFM (2 m/s) 5 0 0 LFM (0 m/s) 100 LFM (0.5 m/s) 200 LFM (1m/s) 400 LFM (2 m/s) 0 25 35 40 55 Temperature (°C) 70 Figure 61. Output Current vs. Temperature for open frame version at VIN = 48Vdc (TJ ≤120°C). 85 25 35 45 55 65 Ambient Temperature [°C] 75 85 Figure 62. Output Current vs. Temperature for baseplate version at VIN = 48Vdc (TJ ≤120°C). EN 55022 Class A TBA Figure 63. Typical output frequency spectrum (0 – 500kHz) at VIN = 48Vdc, IO = 50% Load, COUT = 0. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B Figure 64. 1.8V Conducted EMI per Filter defined in Fig 89. VIN = 48Vdc, IO = 50% Resistive Load, TA = 25°C. SHEET 20 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Performance Curves 1.5V @ 40A (continued) Power Dissipation vs. Output Current, TA=25°C 95% 10 90% 9 85% 8 Power Dissipation [W] Efficiency [%] Efficiency vs. Output Current, T A=25°C 80% 75% 70% 65% Vin = 36V 60% Vin = 48V 55% 7 6 5 4 3 Vin = 36V 2 Vin = 48V 1 Vin = 75V Vin = 75V 0 50% 0 5 10 15 20 25 Output Current [A] 30 35 0 40 5 10 15 20 25 30 35 40 Output Current [A] Figure 65. Efficiency vs. Load Current at minimum, nominal and high line, TA = 25°C. Figure 66. Power Dissipation vs. Load Current at min, nominal and high line, TA = 25°C. Power Dissipation vs. Output Current, TA=85°C Efficiency vs. Output Current, T A=85°C 95% 12 Power Dissipation [W] 90% Efficiency [%] 85% 80% 75% 70% 65% Vin = 36V 60% Vin = 36V Vin = 48V 8 Vin = 75V 6 4 2 Vin = 48V 55% 10 Vin = 75V 0 50% 0 5 10 15 20 25 Output Current [A] 30 35 Figure 67. Efficiency vs. Load Current at minimum, nominal and high line, TA = 85°C. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B 40 0 5 10 15 20 25 30 35 40 Output Current [A] Figure 68. Power Dissipation vs. Load Current at min, nominal and high line, TA = 85°C. SHEET 21 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Performance Curves 1.5V @ 40A (continued) Figure 69. 1.5V [Ch1] startup characteristic at VIN = 48V, IO = 40A, TA = 25°C. Figure 70. Output ripple at VIN = 48V, IO = 40A, TA = 25°C (See Fig 2). Figure 71. Output transient response at 50% to 75% step, VIN = 48V, TA = 25°C, CO = 0. Figure 72. Output transient response at 25% to 50% step, VIN = 48V, TA = 25°C, CO = 0. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B SHEET 22 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Performance Curves 1.5V @ 40A (continued) AEO40M48 Current vs. Temperature 40 40 35 35 30 30 Output Current (A) Output Current (A) AL040M48 Current vs. Temperature 25 20 15 0 LFM (0 m/s) 100 LFM (0.5m/s) 10 25 20 15 0 LFM (0 m/s) 100 LFM (0.5 m/s) 10 200 LFM (1m/s) 200 LFM (1m/s) 5 5 400 LFM (2 m/s) 0 400 LFM (2 m/s) 0 25 35 45 55 65 Temperature (°C) 75 85 Figure 73. Output Current vs. Temperature for open frame version at VIN = 48Vdc (TJ ≤120°C). 25 35 45 55 65 Temperature (°C) 75 85 Figure 74. Output Current vs. Temperature for baseplate version at VIN = 48Vdc (TJ ≤120°C). EN 55022 Class A TBA Figure 63. Typical output frequency spectrum (0 – 500kHz) at VIN = 48Vdc, IO = 50% Load, COUT = 0. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B Figure 64. 1.5V Conducted EMI per Filter defined in Fig 89. VIN = 48Vdc, IO = 50% Resistive Load, TA = 25°C. SHEET 23 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Performance Curves 1.2V @ 40A Power Dissiaption vs. Output Current, TA=25°C 95% 10 90% 9 85% 8 Power Dissipation [W] Efficiency [%] Efficiency vs. Output Current, T A=25°C 80% 75% 70% 65% Vin = 36V 60% Vin = 48V 55% Vin = 75V 50% 7 6 5 4 3 2 Vin = 36V 1 Vin = 75V Vin = 48V 0 0 5 10 15 20 25 Output Current [A] 30 35 40 Figure 77. Efficiency vs. Load Current at minimum, nominal and high line, TA = 25°C. 0 5 15 20 25 Output Current [A] 30 35 40 Figure 78. Power Dissipation vs. Load Current at min, nominal and high line, TA = 25°C. Efficiency vs. Output Current, T A=85°C Power Dissipation vs. Output Current, T A=85°C 95% 12 Power Dissipation [W] 90% 85% Efficiency [%] 10 80% 75% 70% 65% Vin = 36V 60% Vin = 48V 55% Vin = 36V 10 Vin = 48V Vin = 75V 8 6 4 2 Vin = 75V 0 50% 0 5 10 15 20 25 Output Current [A] 30 35 Figure 79. Efficiency vs. Load Current at minimum, nominal and high line, TA = 85°C. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B 40 0 5 10 15 20 25 30 35 40 Output Current [A] Figure 80. Power Dissipation vs. Load Current at min, nominal and high line, TA = 85°C. SHEET 24 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Performance Curves 1.2V @ 40A (continued) Figure 81. 1.5V [Ch1] startup characteristic at VIN = 48V, IO = 40A, TA = 25°C. Figure 82. Output ripple at VIN = 48V, IO = 40A, TA = 25°C (See Fig 2). Figure 83. Output transient response at 50% to 75% step, VIN = 48V, TA = 25°C, CO = 0. Figure 84. Output transient response at 25% to 50% step, VIN = 48V, TA = 25°C, CO = 0. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B SHEET 25 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Performance Curves 1.2V @ 40A (continued) AEO40K48 Current vs. Temperature 40 40 35 35 30 30 Output Current (A) Output Current (A) AL040K48 Current vs. Temperature 25 20 15 0 LFM (0 m/s) 100 LFM (0.5m/s) 10 25 20 15 0 LFM (0 m/s) 100 LFM (0.5 m/s) 10 200 LFM (1m/s) 200 LFM (1m/s) 5 5 400 LFM (2 m/s) 0 400 LFM (2 m/s) 0 25 35 45 55 65 Temperature (°C) 75 85 Figure 85. Output Current vs. Temperature for open frame version at VIN = 48Vdc (TJ ≤120°C). 25 35 45 55 65 Temperature (°C) 75 85 Figure 86. Output Current vs. Temperature for baseplate version at VIN = 48Vdc (TJ ≤120°C). EN 55022 Class A TBA Figure 63. Typical output frequency spectrum (0 – 500kHz) at VIN = 48Vdc, IO = 50% Load, COUT = 0. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B Figure 64. 1.2V Conducted EMI per Filter defined in Fig 89. VIN = 48Vdc, IO = 50% Resistive Load, TA = 25°C. SHEET 26 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Input Filter for FCC Class B Conducted Noise A reference design for an input filter that can provide FCC Class B conducted noise levels is shown below (See Figure 89). Two common mode connected inductors are used in the circuit along with balanced bypass capacitors to shunt common mode currents into the ground plane. Shunting noise current back to the converter reduces the amount of energy reaching the input LISN for measurement. The application circuit shown has an earth ground (frame ground) connected to the converter output (-) terminal. Such a configuration is common practice to accommodate safety agency requirements. Grounding an output terminal results in much higher conducted emissions as measured at the input LISN because a hard path for common mode current back to the LISN is created by the frame ground. “Floating” loads generally result in much lower measured emissions. The electrical equivalent of a floating load, for EMI measurement purposes, can be created by grounding the converter output (load) through a suitably sized inductor(s) while maintaining the necessary safety bonding. PARTS LIST CKT CODE DESCRIPTION CTX01-15091 FILTER Common Cooper Electronic Mode Choke Technologies X-Cap 0.47 µF X 4pcs Y-Cap 22 nF X 4 pcs CIN 220 µF X 1pc Figure 89: Class B Filter Circuit MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B SHEET 27 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Mechanical Specifications Parameter Dimension Device All Symbol L W H H AEO ALO Weight Min - Typ 2.30 [58.42] 1.48 [37.59] - Max 0.40 [10.1] 0.32 [8.2] Unit in [ mm ] in [ mm ] in [ mm ] - 34.02 [1.2] 22.68 [0.8] - g [oz] g [oz] AEO ALO PIN ASSIGNMENT 1 2 3 4 +VIN ENABLE -VIN -Vo 5 6 7 8 2.30 [58.4] 0.90 [22.9] 2.30 [58.4] E - Vin + Output + Sense Trim -Sense -Output + Vin + Output + Sense Trim -Sense -Output + Vin -SENSE TRIM +SENSE +Vo 0.90 [22.9] E - Vin PIN SIDE DOWN PIN SIDE DOWN 0.32 [8.2] 0.15 [3.9] 0.31 [7.9] 0.15 [3.8] 0.45 [11.4] 0.15 [3.8] 2.00 [50.8] 0.45 [11.4] 0.60 [15.2] 0.75 [19.0] 2.19 [55.5] 0.30 [7.6] THRU-HOLE 0.15 [3.8] 0.45 [11.4] 0.75 [19.0] 0.15 [3.8] 0.30 [7.6] 0.45 [11.4] 0.60 [15.2] 0.75 [19.1] 0.75 [19.1] SURFACE MOUNT Figure 90A. ALO (Openframe) Mechanical outline. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B SHEET 28 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) Mechanical Specifications 2.30 [58.4] 2.30 [58.4] 0.90 [22.9] E - Vin + Output + Sense Trim -Sense -Output + Vin + Output + Sense Trim -Sense -Output + Vin 0.90 [22.9] E - Vin PIN SIDE DOWN PIN SIDE DOWN 0.15 [3.9] 0.40 [10.1] 0.23 [5.8] 0.15 [3.8] 0.15 [3.8] 2.00 [50.8] OTP Reference Sense Points: Vicinity of Pin 2- Enable Pin 0.30 [7.6] 0.45 [11.4] 0.45 [11.4] 0.39 [9.8] 0.75 [19.0] 0.15 [3.8] 0.15 [3.8] 0.60 [15.2] 0.75 [19.0] 0.75 [19.1] THRU-HOLE 0.30 [7.6] 2.19 [55.5] 0.45 [11.4] 0.60 [15.2] 0.45 [11.4] 0.75 [19.1] SURFACE MOUNT Figure 90B. AEO (Baseplate) Mechanical Outline. 2.30 [58.4] 2.19 [55.7] 0.15 [3.8] 0.15 [3.8] 0.30 [7.6] 0.15 [3.8] 0.15 [3.8] 0.30 [7.6] 0.30 [7.6] 0.90 [22.9] 0.124 [3.15] C L 0.30 [7.6] 0.092 [2.34] NOTES: ALL DIMENSIONS ARE IN INCHES (MILLIMETERS) MECHANICAL TOLERANCE ± .002(0.5) RECOMMENDED SURFACE MOUNT PADS Min: 0.080 X 0.112 [2.03 x 2.84 ] Max: 0.092 X 0.124 [2.34 x 3.15 ] Figure 91. Recommended Pad layout for SMT (Suffix “S”) version. MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B SHEET 29 OF 30 Technical Reference Notes AEO_ALO40/35/30/20/10x48 Series (Single Output 8th Brick) RECOMMENDED REFLOW PROFILE SOLDERING CONSIDERATIONS 240 The AEO and ALO series converters are compatible with standard wave soldering techniques. When wave soldering, the converter pins should be preheated for 20-30 sec at 110°C and wave soldered at 260°C for less than 10 sec. PEAK TEMPERATURE 200°C - 230°C 220 TEMPERATURE (deg C) 200 When hand soldering, the iron temperature should be maintained at 425°C and applied to the converter pins for less than 5 seconds. Longer exposure can cause internal damage to the converter. Cleaning can be performed with cleaning solvent IPA or with water. 183°C 180 REFLOW ZONE 160 140 120 < 80 sec 110°C PRE-HEAT ZONE 120 - 180 sec 100 80 SLOPE < 4°C /sec 60 40 20 For SMT terminated modules, refer to Figure 92 for the recommended reflow profile. 0 0 30 60 90 120 150 180 210 240 270 300 TIME (seconds) Figure 92. Recommended reflow profile for SMT modules. TABLE 2: PART NUMBERING SCHEME CONSTRUCTION A W L = Open frame E = Baseplate O/P CURRENT O/P VOLTAGE Vin Enable xx y 48 N O 10 = 10A 20 = 20A 30 = 30A 35 = 35A 40 = 40A 40 = 40A 40 = 40A Note: 1) For Through Hole termination: B A F G Y M K = = = = = = = 12V 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V N = Negative Blank = Positive - TH PIN LENGTH TERMINATION 6 S 6 = 3.7mm blank = 5mm default S = SMT Termination (option exists for 30A and below) Blank = (TH) thru-hole - Std pin length is 5mm nominal (min: 0.189 [4.8]; max: 0.205 [5.2] / in [mm]) - “-6” option is 3.7mm nominal (min: 0.137 [3.5]; max: 0.152 [3.9] / in [mm]) - Pins 4&8 diameter: ∅ = 0.062 [1.57], others: ∅ = 0.04 [1.0] (6X) Please call 1-888-41-ASTEC for further inquiries or visit us at www.astecpower.com MODEL: AEO40x48 / ALO40x48 SERIES JUNE 24, 2005 - REVISION B SHEET 30 OF 30