Technical Reference Notes
AA60A-036L-050D033H Series
(5V / 3V3 Dual Output Half Brick)
AA60A-036L-050D033H SERIES
This specification covers the requirement for a wide input voltage range (18V to 60V) half brick - baseplate design,
60W power - dual output high efficiency DC/DC converter.
MODEL NAME
AA60A-036L-050D033H
AA60A-036L-050D033HN
AA60A-036L-050D033H-6
AA60A-036L-050D033HN-6
AA60A-036L-050D033H-8
AA60A-036L-050D033HN-8
AA60A-036L-050D033H-6M3
AA60A-036L-050D033H-8M3
AA60A-036L-050D033H-6M4
AA60A-036L-050D033H-8M4
AA60A-036L-050D033H-6M9
VIN nominal
36V
36V
36V
36V
36V
36V
36V
36V
36V
36V
36V
OPTIONS:
Negative Enable:
Positive Enable:
3.7mm (nom) Pin Length:
2.8mm (nom) Pin Length:
0.45"H - Transverse Heatsink
0.45"H - Longitudinal Heatsink
Non-threaded baseplate stand-off
MODEL: AA60A-036L-050D033H SERIES
OCTOBER 10, 2002 - REVISION A
VOUT / IOUT
5V, 12A / 3.3V, 15A
5V, 12A / 3.3V, 15A
5V, 12A / 3.3V, 15A
5V, 12A / 3.3V, 15A
5V, 12A / 3.3V, 15A
5V, 12A / 3.3V, 15A
5V, 12A / 3.3V, 15A
5V, 12A / 3.3V, 15A
5V, 12A / 3.3V, 15A
5V, 12A / 3.3V, 15A
5V, 12A / 3.3V, 15A
SUFFIX
"N"
No suffix “N”
"-6"
"-8"
M3
M4
M9
SHEET 1 OF 12
Technical Reference Notes
AA60A-036L-050D033H Series
(5V / 3V3 Dual Output Half Brick)
Electrical Specifications
STANDARD TEST CONDITION on a single module unless otherwise specified.
TA:
- VIN:
Case:
Enable:
+ VIN:
+VOUT2 :
-VOUT2 :
Trim2:
+VOUT1 :
- VOUT1 :
Trim1:
Note:
PIN 1
PIN 2
PIN 3
PIN 4
PIN 5
PIN 6
PIN 7
PIN 8
PIN 9
PIN 10
25ºC (Ambient Air)
Return Pin for +VIN
Case Ground - OPEN
Dependent on model series 1
48 VDC
3.3V Load
3.3V Load Return
3.3V Trim - Open
5V Load
5V Load Return
5V trim - Open
1. For Negative Enable series ("N" suffix), Enable pin should be connected to -Vin to allow module to turnon. For Positive Enable series (no "N" suffix), Enable pin should be connected to + Vin.
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) :
Device
Symbol
Min
Typ
Max
Unit
All
VIN
VI N, trans
0
0
-
60
100
Vdc
Vdc
TA
TB
-40
-
702
100
ºC
ºC
Storage Temperature
TSTG
-55
-
125
ºC
Operating Humidity
-
-
-
85
%
-
1500
707
1500
-
-
Vdc
Vdc
Vdc
Operating Ambient Temperature
Operating Baseplate Temp erature
I/O Isolation
Input to Output
Input to Case
Output to Case
Note:
2. Power Derating applies
MODEL: AA60A-036L-050D033H SERIES
OCTOBER 10, 2002 - REVISION A
SHEET 2 OF 12
Technical Reference Notes
AA60A-036L-050D033H Series
(5V / 3V3 Dual Output Half Brick)
Electrical Specifications (continued)
INPUT SPECIFICATION
Parameter
Device
Symbol
Min
Typ
Max
Unit
Operating Input Voltage
After start-up with max 60W
All
VIN
19
18
36
60
60
VDC
VDC
Startup Voltage
All
20
VDC
Shutdown Voltage
Maximum Input Current3
Conditions: VIN = VIN,min
IO = IO,max; TA = 25 ºC
19
All
IIN,max
17
-
17.8
-
18
6.5
VDC
A
Input Reflected Ripple Current4
Conditions: PO1 = PO2 = 30W; TA = 25 ºC
All
II1/ II2
-
-
100
mA PK-PK
Standing Loss
Condition: VIN = VIN,nom; TA = 25 ºC
All
-
-
3
-
W
NOTE: 3. This power module is not internally fused. An input line is recommended.
4. See Figure 1 for Input Reflected Ripple Current Test Setup.
OUTPUT SPECIFICATIONS
Parameter
Device
Symbol
Min
Typ
Max
Unit
Voltage Setpoint
Conditions: VI = VIN,nom; TA = 25 ºC;
TC = 50ºC; VO1 : IO1 = IO,max; VO2 :
IO2 = IO,min;
All
VO1 / V O2
4.92 / 3.25
5.0 / 3.30
5.08 / 3.35
Vdc
Load Current
All
IO1 /IO2
0.5 / 0.5
-
12.0 / 15.0
A
Output Capacitive Load
All
10,000
?F
Line Regulation
All
-
0.01
1.0
%Vo
Load Regualtion5
All
-
0.05
1.0
%Vo
Temperature Coefficient of Voltage
Conditions: TC = -40?C to 100?C
VIN =VIN,nom; IO = IO,max;
All
-
-
2.0
%Vo
MODEL: AA60A-036L-050D033H SERIES
OCTOBER 10, 2002 - REVISION A
SHEET 3 OF 12
Technical Reference Notes
AA60A-036L-050D033H Series
(5V / 3V3 Dual Output Half Brick)
Electrical Specifications (continued)
OUTPUT SPECIFICATIONS
Parameter
Min
Typ
Max
Unit
-
50
20
100
40
mVPK-PK
mVRMS
IO1
IO2
16.5
18.0
-
22
25
A
A
5V
3.3V
?1
?2
80
73
83
75
Peak Voltage Deviation
Load Change: IO = 50% to 75% IO,max
Other output at min load
Transient Settling Time
Up to 1% of Vo
3.3V
5V
-
-
52
27
120
300
mV
mV
3.3V
5V
-
-
40
-
300
300
?sec
msec
Turn-On Time
Conditions: VIN = VIN,min; IO1 = IO,max,
IO2 = IO,min; TA = 25?C
All
-
-
5
100
msec
Output Voltage Overshoot
Conditions: IO = IO, max; TA = 25?C;
All
-
-
120
200
% VO
Output Ripple and Noise:
Peak-to-Peak6
Conditions: IO = IO,max; VIN =VIN,nom;
BW = 20 MHz;
TA = 25 o C
Device
All
Over Current Limit Inception
Efficiency
Conditions: VIN = VIN,nom; TA = 25 ºC;
TC = 50 ºC max
? 1: IO1 = IO1,max, IO2 =IO2,min
? 2: IO1 = IO1,min, IO2 =IO2,max
Symbol
%
%
Dynamic Response
Conditions: ? IO /? t = 1A/10?s ;
VIN = VIN,nom ; TA = 25?C;
TC = 50?C max
NOTE: 5. Channel under test shall follow the specified conditions while the other channel is set to min load.
6. Channel under test shall be set to full load with the other channel set to IO, min - See Fig 2 for the
recommended ripple and noise test setup.
MODEL: AA60A-036L-050D033H SERIES
OCTOBER 10, 2002 - REVISION A
SHEET 4 OF 12
Technical Reference Notes
AA60A-036L-050D033H Series
(5V / 3V3 Dual Output Half Brick)
Electrical Specifications (continued)
FEATURE SPECIFICATION
Parameter
Device
Symbol
Min
Typ
Max
Unit
ALL
VENABLE
VENABLE
0
1.5
-
0.7
12.0
V
V
All
All
IENABLE
IENABLE
-
0.4
-
1.0
50
mA
?A
Output Over Voltage Clamp
All
VO,CLAMP
120
-
140
% VO
Output Voltage Adjustment Range
VO1 : VIN=VIN,nom; IO1 = IO,MAX; IO2 =
IO,MIN
VO2 : VIN=VIN,nom; IO2 = IO,MAX; IO1 =
IO,MIN
5V
V01
4.3
-
5.25
V
3.3V
V02
2.5
-
3.46
V
Enable Pin Voltage
Logic Low:
Logic High:
Enable Pin Current
Logic Low
Logic High: (ILKG at VENABLE = 5V)
ISOLATION SPECIFICATION
Parameter
Device
Symbol
Min
Typ
Max
Unit
Isolation Capacitance
All
-
-
2000
-
pF
Isolation Resistance
All
-
10
-
-
M?
MODEL: AA60A-036L-050D033H SERIES
OCTOBER 10, 2002 - REVISION A
SHEET 5 OF 12
Technical Reference Notes
AA60A-036L-050D033H Series
(5V / 3V3 Dual Output Half Brick)
SAFETY APPROVAL
The AA60A-036L series have been certified through:
?? UL 1950, Third Edition - Recognized
?? CSA C22.2 No 950-95 - Recognized
?? EN60950 through TUV-PS
TO OSCILLOSCOPE
Vi(+)
Ltest
12 uH
Cs 220 uF
ESR < 0.1 OHM
@ 20 ºC, 100 kHz
BATTERY
33 uF
ESR < 0.7 OHM
@ 20 ºC, 100 kHz
Vi(-)
Note:
Measure the input reflected ripple current with a simulated source
inductance (Ltest) of 12uH. Capacitor Cs offsets possible battery/
source impedance. Measure current as shown above.
Figure 1. Input Reflected Ripple Current Measurement Setup.
COPPER STRIP
Vo(+)
1 uF
10 uF
SCOPE
RESISTIVE
LOAD
Vo(-)
Note:
Use a 1?F 50V X7R ceramic capacitor and a 10? F 25V tantalum cap.
Scope measurement should be made using a BNC probe socket positioned
about 76mm (3 in.) away from the module’s output terminals. The ext.
capacitors should be placed between the BNC socket and the module’s
output terminals, with a minimum distance of 51mm (2in.) from the latter.
Figure 2. Peak to Peak Output Noise Measurement Setup.
MODEL: AA60A-036L-050D033H SERIES
OCTOBER 10, 2002 - REVISION A
SHEET 6 OF 12
Technical Reference Notes
AA60A-036L-050D033H Series
(5V / 3V3 Dual Output Half Brick)
Basic Operation and Features
INPUT STARTUP / SHUTDOWN VOLTAGE
To prevent any instability to the converter that may affect and consequently damage the end system, the AA60A series have
been designed to turn-on once VIN is in the voltage range of 19 - 20VDC. Likewise, it has also been programmed to turn-off
when VIN drops down to 17 - 18VDC.
OUTPUT VOLTAGE ADJUST/TRIM
Each channel/ output comes with a Trim pin (Pin 10 for VO1 and Pin 7 for VO2 ). This can be used to used to adjust the outputs
up and down per the given trim range in the previous section. This is achieved by connecting an external resistor as described
below.
Output voltage adjustment is accomplished by connecting an external resistor between the Trim Pin and either the +VO or
–VO Pins. With an external resistor, RTRIM between the Trim Pin and +VO Pin the output voltage increases. With RTRIM
connected between the Trim Pin and -VO Pin the output voltage decreases. See Figure 3.
The following equation determines the required external resistor value to obtain an adjusted output voltage:
RTRIM = (G – ( H * VO,Adj)) / (V O,Adj – K )
Where: VO, ADJ = is the desired output voltage (e.g. 5.2 V = 5V * +4%)
Trim Output Voltage UP (RTRIM connect to V+)
Model
Output
G
036H 5/3.3
5
129980.1
036H 5/3.3
3.3
12194.5
H
10220
2000
K
5
3.3
Trim Output Voltage DOWN (RTRIM connect to V-)
Model
Output
G
036H 5/3.3
5
25578.4
036H 5/3.3
3.3
3301.2
H
10220
2000
K
5
3.3
OUTPUT OVER VOLTAGE PROTECTION (OVP)
The Over Voltage Protection circuit will shut down the entire converter if any of the two output voltages exceeds the OVP
threshold limits. The output will remain latched until the OVP fault is removed and the input voltage is recycled
MODEL: AA60A-036L-050D033H SERIES
OCTOBER 10, 2002 - REVISION A
SHEET 7 OF 12
Technical Reference Notes
AA60A-036L-050D033H Series
(5V / 3V3 Dual Output Half Brick)
Basic Operation and Features (continued)
OUTPUT ENABLE
The AA60A comes with an Enable pin (PIN 3), which is primarily used to turn ON/OFF the converter. Both a Positive (no part
number suffix required) and a Negative (suffix “N” required) Enable Logic option is being offered
For Positive Enable, the converter is turned on when the Enable pin is at logic HIGH or le ft open. The unit turns off when the
Enable pin is at logic LOW. On the other hand, the Negative Enable version turns 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.
OVER CURRENT PROTECTION (OCP)
The Over Current Protection circuit will shutdown the converter if any of the load current of either output reaches the OCP
threshold limits. The unit will automatically recover once the over current condition is removed.
MODEL: AA60A-036L-050D033H SERIES
OCTOBER 10, 2002 - REVISION A
SHEET 8 OF 12
Technical Reference Notes
AA60A-036L-050D033H Series
(5V / 3V3 Dual Output Half Brick)
Performance Curves
EFFICIENCY
Figure 3. 5V Efficiency curve vs. Output load at
45ºC case temperature, input line voltage of
36VDC nominal.
5V Efficiency @ IO2 = IO2,MIN / TC = 45ºC
Efficiency [%]
90
85
80
75
70
65
Vin = 36V
60
10
20
30
40
50
60
70
80
90
100
Output Load Current IO1 [% IO1,MAX ]
Figure 4. 3.3V Efficiency curve vs. Output load at
45ºC case temperature, input line voltage of
36VDC nominal.
3.3V Efficiency @ IO1 = IO1,MIN / TC = 45ºC
Efficiency [%]
85
80
75
70
65
60
Vin = 36V
55
10
20
30
40
50
60
70
80
90
100
Output Load Current IO2 [% IO2,MAX ]
MODEL: AA60A-036L-050D033H SERIES
OCTOBER 10, 2002 - REVISION A
SHEET 9 OF 12
Technical Reference Notes
AA60A-036L-050D033H Series
(5V / 3V3 Dual Output Half Brick)
Performance Curves
Figure 5. Typical 5V Short circuit waveform at TA =
25ºC, VIN = 36V nominal.
Figure 6. Typical 3.3V Short circuit waveform at TA =
25ºC, VIN = 36V nominal.
Figure 7. Power Derating at 36V nominal input voltage.
MODEL: AA60A-036L-050D033H SERIES
OCTOBER 10, 2002 - REVISION A
SHEET 10 OF 12
Technical Reference Notes
AA60A-036L-050D033H Series
(5V / 3V3 Dual Output Half Brick)
Mechanical Specifications
Parameter
Dimension
Device
All
Symbol
L
W
H
Weight
PIN ASSIGNMENT
1
2
3
4
5
-VIN
Case
Enable
+VIN
+VOUT2
Min
-
Typ
2.40 [61.0]
2.30 [58.4]
0.50 [12.07]
Max
-
Unit
in [ mm ]
in [ mm ]
in [ mm ]
-
0.0893
0.100
kg
6
7
8
9
10
RTN_2
TRIM_2
+VOUT1
RTN_1
TRIM_1
NOTE: Pin diameter at 0.04”
Figure 8. AA60A series mechanical outline ( inches [(mm]).
MODEL: AA60A-036L-050D033H SERIES
OCTOBER 10, 2002 - REVISION A
SHEET 11 OF 12
Technical Reference Notes
AA60A-036L-050D033H Series
(5V / 3V3 Dual Output Half Brick)
Mechanical Specifications (continued)
SOLDERING CONSIDERATIONS
The AA60A series converters are compatible with standard wave soldering techniques. When wave soldering, the
converter pins should be preheated for 20-30 seconds at 110?C and wave soldered at 260?C for less than 10 seconds.
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.
Please call 1-888-41-ASTEC for further inquiries
or visit us at www.astecpower.com
MODEL: AA60A-036L-050D033H SERIES
OCTOBER 10, 2002 - REVISION A
SHEET 12 OF 12