Astec ALO30F48 Aeo40x48 / alo40x48 single output 8th brick: baseplate or open-frame module Datasheet

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