Astec AA05E-048L-050S 36 vdc to 75 vdc inputs, 5 w Datasheet

Technical Reference Notes (TRN)
REV
A
Description
Initial Release
AA05E Series
36 Vdc to 75 Vdc Inputs, 5 W
Date
2/4/00
Approved
TECHNICAL REFERENCE
NOTES (TRN)
AA05E SERIES
DC-DC CONVERTER
ASTEC POWER
ANDOVER, MA
_____________________________________________________________
ASTEC POWER - Andover
1 of 8
Technical Reference Notes (TRN)
1.
AA05E Series
36 Vdc to 75 Vdc Inputs, 5 W
General Description and Scope
This specification covers the requirements for AA05E-048L-XXXS switching DC-DC converter.
This module operates off a 36 – 75V DC bus and provides both a single and dual isolated output.
Six output options are available in the family as shown below.
Table 1. Device Part Numbers
Model Designation
033S
050S
120S
150S
120D
150D
Part Number
AA05E-048L-033S
AA05E-048L-050S
AA05E-048L-120S
AA05E-048L-150S
AA05E-048L-120D
AA05E-048L-150D
2.
Electrical Specifications
2.1
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device.
These are absolute stress ratings only. Functional operation of the device in not implied at these
or any other conditions in excess of those given in the operational sections of the TRN. Exposure
to absolute maximum ratings for extended periods can adversely affect device reliability.
Parameter
Input Voltage:
Continuous:
Transient (100ms)
Operating Case Temperature
Storage Temperature
Operating Humidity
I/O Isolation
Device
Symbol
Min
Typ
Max
Unit
All
All
All
All
All
All
VI
VI, trans
Tc
Tstg
-
0
0
-40
-55
-
-
25
100
125
95
1500
Vdc
Vdc
ºC
ºC
%
Vdc
_____________________________________________________________
ASTEC POWER - Andover
2 of 8
Technical Reference Notes (TRN)
2.2
AA05E Series
36 Vdc to 75 Vdc Inputs, 5 W
Input Specifications
Table 2. Input Specifications
Parameter
Operating Input Voltage
Maximum Input Current
(VI = 0 to VI,max: Io = Io,max)
Input Reflected-ripple Current
(5Hz to 20MHz: 12uH source
Device
All
033S
050S
120S
150S
120D
150D
All
Symbol
VI
II,max
II,max
II,max
II,max
II,max
II,max
II
Min
36
-
Typ
48
-
Max
75
0.130
0.185
0.180
0.180
0.175
0.175
10
Unit
Vdc
A
A
A
A
A
A
mAp-p
All
-
-
-
0.75
W
All
-
-
-
3.0
uF
impedance: TA = 25 ºC.) See Figure 1.
No Load Input Power
(VI = VI,nom )
Maximum Input Capacitance
CAUTION: This power module is not internally fused. An input line fuse must always be used.
2.3
Output Specifications
Table 3. Output Specifications
Parameter
Output Voltage Setpoint
(VI = VI,min to VI,max: Io = Io,max;
TA = 25 ºC )
Output Regulation:
Line (VI = VI,min to VI,max)
Device
033S
050S
120S
150S
120D
150D
Symbol
Vo,set
Vo,set
Vo,set
Vo,set
Vo,set
Vo,set
Min
3.267
4.95
11.88
14.85
±11.88
±14.85
Typ
3.3
5.0
12.0
15.0
±12.0
±15.0
Max
3.333
5.05
12.12
15.15
±12.12
±15.15
Unit
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
All
All
-
-
0.5
25
0.5
1.0
2.0
50
%
%
%Vo
mVp-p
All
033S
050S
120S
150S
120D
150D
033S
050S
120S
150S
120D
150D
All
Io
Io
Io
Io
Io
Io
Io
Io
Io
Io
Io
Io
-
0.1
0.1
0.04
0.03
±0.02
±0.02
-
-
1000
1.0
1.0
0.41
0.33
±0.20
±0.16
1.70
1.70
0.70
0.56
±0.35
±0.27
190
uF
A
A
A
A
A
A
A
A
A
A
A
A
Load(Io = Io,min to Io,max)
Temperature (Tc = -40 ºC to +100 ºC)
Output Ripple and Noise
(Across 0.10 uF ceramic capacitors)
See Figure 2.
External Load Capacitance
Output Current
Output Current-limit Inception
(Vo = 97% Vo,set)
Output Short-circuit Current
%Io,max
(Vo = 250mV)
_____________________________________________________________
ASTEC POWER - Andover
3 of 8
Technical Reference Notes (TRN)
AA05E Series
36 Vdc to 75 Vdc Inputs, 5 W
Table 3. Output Specifications (continued)
Parameter
Efficiency
(VI = VI,nom ; Io = Io,max; TA = 25
ºC )
Device
033S
050S
120S
150S
120D
150D
Symbol
Io
Io
Io
Io
Io
Io
Min
71
74
75
75
77
77
Typ
73
76
77
77
79
79
Max
-
Unit
%
%
%
%
%
%
All
-
-
-
2
1000
%Vo
usec
All
-
-
-
2
1000
%Vo
usec
All
-
-
150
200
msec
All
-
-
-
5
%Vo
Symbol
-
Min
-
Typ
260
10
Max
-
Unit
pF
Mohm
Device
All
Symbol
-
Min
-
Typ
1,000,000
Max
-
Unit
hours
All
-
-
-
15(0.50)
g (oz.)
Dynamic Response:
(βˆ†Io/βˆ†t = 1A/10us; VI = VI,nom ; TA =
25 ºC )
Load Change from Io = 50% to
75% of Io, max:
Peak Deviation
Settling Time
Load Change from Io = 50% to
25% of Io, max:
Peak Deviation
Settling Time
Turn-on Time
(Io = Io,max; Vo within 1%)
Output Voltage Overshoot
(Io = Io,max; TA = 25 ºC)
2.4
Isolation Specifications
Table 4. Isolation Specifications
Parameter
Isolation Capacitance
Isolation Resistance
2.5
Device
All
All
General Specifications
Table 5. General Specifications
Parameter
Calculated MTBF (Io = Io,max; Tc
= 25 ºC)
Weight
_____________________________________________________________
ASTEC POWER - Andover
4 of 8
Technical Reference Notes (TRN)
2.6
AA05E Series
36 Vdc to 75 Vdc Inputs, 5 W
Test Configurations
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 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 Test Setup.
COPPER STRIP
Vo(+)
0.10uF
SCOPE
RESISTIVE
LOAD
Vo(-)
Note: Use a 0.10 uF ceramic capacitors. Scope measurement should be made using a BNC socket. Position
the load between 51 mm and 76 mm (2 in. and 3 in. ) from module.
Figure 2. Peak-to-Peak Output Noise Measurement Test Setup.
3.0
Thermal Considerations
The power module operates in a variety of thermal environments; however, sufficient cooling
should be provided to help ensure reliable operation of the unit. Heat-dissipating components
inside the unit are thermally coupled to the case. Heat is removed by conduction, convection, and
radiation to the surrounding environment.
Increasing airflow over the module enhances the heat transfer via convection. Figure 3 shows the
maximum power that can be dissipated by the module without exceeding the maximum case
temperature versus local ambient temperature (Ta) for natural convection through 3.0 m/s (600
ft/min).
Systems in which these power modules are used typically generate natural convection airflow
rates of 0.25 m/s (50 ft/min) due to other heat dissipating components in the system. Therefore,
the natural convection condition represents airflow rates of approximately 0.25 m/s (50 ft/min).
Use of Figure 3 is shown in the following example:
_____________________________________________________________
ASTEC POWER - Andover
5 of 8
Technical Reference Notes (TRN)
AA05E Series
36 Vdc to 75 Vdc Inputs, 5 W
Thermal Considerations (continued)
Example
What is the minimum airflow necessary for a 050S operating at 48V, an output current of 1.0 A,
and a maximum ambient temperature of 90 ºC?
Solution:
Given: Vi = 12V, Io = 1.0 A, Ta = 90 ºC.
Determine Pd from Figure 5: Pd = 1.6 W.
Determine Airflow from Figure 3: v = 2.0 m/s (400 ft/min).
Nat. Conv.
AA05E SERIES
Power Derating Curve
1.0 m/s (200 ft/min)
2.0 m/s (400 ft/min)
3.0 m/s (600 ft/min)
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
Ambient Temperature (ºC)
Figure 3. Forced Convection Power Derating.
Vin= 36.0
AA05E-048L-033S
Power Dissipation vs Output Current
Tc = Tc,max
Vin= 36.0
AA05E-048L-050S
Power Dissipation vs Output Current
Tc = Tc,max
Vin= 48.0
Vin= 75.0
1.60
1.80
1.40
1.60
Vin= 48.0
Vin= 75.0
1.40
1.20
1.20
1.00
1.00
0.80
0.80
0.60
0.60
0.40
0.40
0.20
0.00
0.10
0.20
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
Output Current (Amps)
Output Current (Amps)
Figure 4. 033S Power Dissipation
Figure 5. 050S Power Dissipation
1.00
_____________________________________________________________
ASTEC POWER - Andover
6 of 8
Technical Reference Notes (TRN)
AA05E Series
36 Vdc to 75 Vdc Inputs, 5 W
Thermal Considerations (continued)
Vin= 36.0
AA05E-048L-120S
Power Dissipation vs Output Current
Tc = Tc,max
Vin= 75.0
1.80
1.60
1.60
1.40
1.40
Vin= 36.0
AA05E-048L-150S
Power Dissipation vs Output Current
Tc = Tc,max
Vin= 48.0
Vin= 48.0
Vin= 75.0
1.20
1.20
1.00
1.00
0.80
0.80
0.60
0.60
0.40
0.40
0.20
0.20
0.00
0.042
0.084
0.126
0.168
0.210
0.252
0.294
0.336
0.378
0.420
0.00
0.033
0.066
0.099
0.132
0.165
0.198
0.231
0.264
0.297
0.330
Output Current (Amps)
Output Current (Amps)
Figure 6. 120S Power Dissipation
Figure 7. 150S Power Dissipation
Vin= 36
AA05E-048L-120D
Power Dissipation vs Output Current
Tc = Tc,max
Vin= 75
1.80
1.80
1.60
1.60
1.40
1.40
1.20
1.20
1.00
1.00
0.80
0.80
0.60
0.60
0.40
0.40
0.20
Vin= 36
AA05E-048L-150D
Power Dissipation vs Output Current
Tc = Tc,max
Vin= 48
Vin= 48
Vin= 75
0.20
0.00
0.020
0.040
0.060
0.080
0.100
0.120
0.140
0.160
0.180
0.200
0.00
0.016
0.032
0.048
0.064
0.080
0.096
0.112
0.128
0.144
0.160
Output Current (Amps)
Output Current (Amps)
Figure 8. 120D Power Dissipation
Figure 9. 150D Power Dissipation
4.0
Input Fusing Considerations
An input fuse is recommended to protect the module, as well as external circuitry, in case of an
input reverse voltage fault condition or other fault conditions where excess amounts of input
current could be present. Generally the fuse should be rated at 1.5 times the maximum operating
input current.
_____________________________________________________________
ASTEC POWER - Andover
7 of 8
Technical Reference Notes (TRN)
5.0
AA05E Series
36 Vdc to 75 Vdc Inputs, 5 W
Outline Diagram
0.40 [10.2]
0.18
[4.6]
0.10
[2.54]
0.02
[0.50]
0.60
[15.24]
1.27
[32.2]
23
0.10
[2.54]
9 10 11
0.60 0.80
[15.24] [20.3]
0.010
[0.25]
23 24
1615 14
Figure 10 . AA05E Unit Outline – Pin View
Pin Assignment
Single Output
Dual Output
Pins 2 & 3:
-Vin
Pins 22 & 23: +Vin
Pin 14:
+Vout
Pin 16:
Com
Remaining pins NC
Pins 2 & 3:
-Vin
Pins 22 & 23: +Vin
Pin 14:
+Vout
Pins 9 & 16:
Com
Pin 11:
-Vout
Remaining pins NC
_____________________________________________________________
ASTEC POWER - Andover
8 of 8
Similar pages