-1-
A
AE
EE
E-
-1
10
0W
W
1
12
2V
V
I
In
np
pu
ut
t
S
Se
er
ri
ie
es
s
T
Te
ec
ch
hn
ni
ic
ca
al
l
R
Re
ef
fe
er
re
en
nc
ce
e
N
No
ot
te
es
s
3.3V
3.3V, 5V
, 5V, 12V
, 12V, 15V Single Output
, 15V Single Output
10 W
10 Watt DC-DC Converter
att DC-DC Converter
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AA
AAEE
EEEE
EE-
-11
1100
00WW
WW
11
1122
22VV
VV
II
IInn
nnpp
ppuu
uutt
tt
SS
SSee
eerr
rrii
iiee
eess
ss
DD
DDCC
CC-
-DD
DDCC
CC
CC
CCoo
oonn
nnvv
vvee
eerr
rrtt
ttee
eerr
rrss
ss
33
33..
..33
33VV
VV,,
,,
55
55VV
VV,,
,,
11
1122
22VV
VV,,
,,
11
1155
55VV
VV
11
1100
00
WW
WWaa
aatt
tttt
tt
SS
SSii
iinn
nngg
ggll
llee
ee
OO
OOuu
uutt
ttpp
ppuu
uutt
tt
-2-
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Introduction
Introduction
The AEE-10W 12Vin single output series of switch-
ing DC-DC converters is one of the most cost effec-
tive options available in component power. The
series uses an industry standard 1” X 2” package
and pinout configuration, with Trim and CNT func-
tions available.
AEE-10W 12Vin single output series uses a 2:1
input range of 9V to 18V, outputs are isolated from
input and the converters are capable of providing
up to 10 watts of output power.
At start up, input current passes through an input fil-
ter designed to help meet CISPR 22 level A radiat-
ed emissions, and Bellcore GR1089 conducted
emissions. A fault clearing device such as a fuse
should be used in line with the input to the module.
The AEE-10W 12Vin single output converters are
pulse width modulated (PWM) and operate at a
nominal fixed frequency of 330 kHz. Feedback to
the PWM controller uses an opto-isolator, maintain-
ing complete isolation between primary and sec-
ondary. Caution should be taken to avoid ground
loops when connecting the converters to ground.
Design Features
Design Features
! 2” X 1” package
! High efficiency
! High power density
! 10 watts of output power
! 2:1 wide input of 9-18V
! CNT function
! Trim function
! Input under-voltage lockout
! Output short circuit protection
! Output current limiting
! High input-output isolation voltage
! Wide operating case temperature range:
-25°C~ +100°C
Options
Options
!Choice of trim function
!Choice of remote on/off logic configuration
AA
AAEE
EEEE
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-11
1100
00WW
WW
11
1122
22VV
VV
II
IInn
nnpp
ppuu
uutt
tt
SS
SSee
eerr
rrii
iiee
eess
ss
DD
DDCC
CC-
-DD
DDCC
CC
CC
CCoo
oonn
nnvv
vvee
eerr
rrtt
ttee
eerr
rrss
ss
33
33..
..33
33VV
VV,,
,,
55
55VV
VV,,
,,
11
1122
22VV
VV,,
,,
11
1155
55VV
VV
11
1100
00
WW
WWaa
aatt
tttt
tt
SS
SSii
iinn
nngg
ggll
llee
ee
OO
OOuu
uutt
ttpp
ppuu
uutt
tt
-3-
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Fuse
Trim
-Vo
+Vo
-Vin
CNT
+Vin
Load
C4 C3
Vin
K
L1
C1 C2
Note: The figure is Negative Control, and reverse Positive Control is available.
K connects, output OFF.
K disconnects or CNT is in midair, output ON.
Fuse:12Vin--4A
C1 Recommended:
12Vin--220uF/25V electrolytic or ceramic type capacitor
C2 Recommended:
m 47uF/25V capacitor
C3 Recommended:
100uF/25V electrolytic or ceramic type capacitor
C4 Recommended:
0.47uF capacitor
L1 Recommended:
10--12uH
5V
T
Typical Application
ypical Application
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AAEE
EEEE
EE-
-11
1100
00WW
WW
11
1122
22VV
VV
II
IInn
nnpp
ppuu
uutt
tt
SS
SSee
eerr
rrii
iiee
eess
ss
DD
DDCC
CC-
-DD
DDCC
CC
CC
CCoo
oonn
nnvv
vvee
eerr
rrtt
ttee
eerr
rrss
ss
33
33..
..33
33VV
VV,,
,,
55
55VV
VV,,
,,
11
1122
22VV
VV,,
,,
11
1155
55VV
VV
11
1100
00
WW
WWaa
aatt
tttt
tt
SS
SSii
iinn
nngg
ggll
llee
ee
OO
OOuu
uutt
ttpp
ppuu
uutt
tt
-4-
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Block Diagram
Block Diagram
Ordering Information
Ordering Information
AEE02F12 9-18V 3.3V 2.55A 7 40 78%
AEE02A12 9-18V 5V 2A 7 40 81%
AEE01B12 9-18V 12V 0.84A 10 40 83%
AEE01C12 9-18V 15V 0.68A 10 40 84%
3
4
5
6
CNT Trim
Model Input Output Output Ripple Noise Efficiency
Number Voltage Voltage Current (mV rms) (mV pp) typ
typ typ
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1100
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VV
II
IInn
nnpp
ppuu
uutt
tt
SS
SSee
eerr
rrii
iiee
eess
ss
DD
DDCC
CC-
-DD
DDCC
CC
CC
CCoo
oonn
nnvv
vvee
eerr
rrtt
ttee
eerr
rrss
ss
33
33..
..33
33VV
VV,,
,,
55
55VV
VV,,
,,
11
1122
22VV
VV,,
,,
11
1155
55VV
VV
11
1100
00
WW
WWaa
aatt
tttt
tt
SS
SSii
iinn
nngg
ggll
llee
ee
OO
OOuu
uutt
ttpp
ppuu
uutt
tt
-5-
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Absolute Maximum Rating
Input Voltage(continuous) -0.3 20 Vdc
Input Voltage(peak/surge) -0.3 25 Vdc 50ms non-repetitive
Case temperature -25 100 °C
storage temperature -40 125 °C
Input Characteristics
Input Voltage Range 9 12 18 Vdc
Input Reflected Current 10 %Iin
T urn-of f Input Voltage 7.6 Vdc
T urn-on Input Voltage 8.4 Vdc
T urn On Time ms
Control Function
Logic High 3.6 6 Vdc Reverse logic option “P” available
Logic Low 0 0.7 Vdc
Control Current mA
General Specifications
MTBF 3,000 k Hrs Bellcore TR332, Tc=30°C
Isolation 1500 Vdc Input-Output
1000 Vdc Input-Case, Output-Case
Pin solder temperature 260 °C wave solder < 10 s
Hand Soldering Time 5 s iron temperature 425°C
Weight 25 grams
Characteristic Min Typ Max Units Notes
Characteristic Min Typ Max Units Notes
Characteristic Min Typ Max Units Notes
Characteristic Min Typ Max Units Notes
AEE02F12 Output Characteristics
Power 10 W
Output Current 2.55 A
Output Setpoint Voltage 3.24 3.3 3.36 Vdc Vin=12V, Io=2.55A
Line Regulation 0.2 %Vo Vin=9~18V, Io=2.55A
Load Regulation 1 %Vo Io=0~2.55A, Vin=12V
Dynamic Response
50-75% load 100 mV Ta=25°C, DI/Dt=1A/10µs
200 µs Ta=25°C, DI/Dt=1A/10µs
50-25% load 100 mV Ta=25°C, DI/Dt=1A/10µs
200 µs Ta=25°C, DI/Dt=1A/10µs
Current Limit Threshold 2.8 3.8 A
Short Circuit Current ------- A can endure longterm shortcircuit
Efficiency 76 78 % Vin=12V, Io=2.55A, Ta=25°C
T rim Range 90 110 %Vo
Over Voltage Protection Setpoint ------- V
Temperature Regulation 0.02 %Vo/°C
Ripple (rms) 10 mV ( 0 to 20MHz Bandwidth )
Noise (p-p) 40 mV ( 0 to 20MHz Bandwidth )
Switching Frequency 330 kHz
Output Capacitor 100 µF
AA
AAEE
EEEE
EE-
-11
1100
00WW
WW
11
1122
22VV
VV
II
IInn
nnpp
ppuu
uutt
tt
SS
SSee
eerr
rrii
iiee
eess
ss
DD
DDCC
CC-
-DD
DDCC
CC
CC
CCoo
oonn
nnvv
vvee
eerr
rrtt
ttee
eerr
rrss
ss
33
33..
..33
33VV
VV,,
,,
55
55VV
VV,,
,,
11
1122
22VV
VV,,
,,
11
1155
55VV
VV
11
1100
00
WW
WWaa
aatt
tttt
tt
SS
SSii
iinn
nngg
ggll
llee
ee
OO
OOuu
uutt
ttpp
ppuu
uutt
tt
-6-
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Characteristic Min Typ Max Units Notes
AA
AAEE
EEEE
EE-
-11
1100
00WW
WW
11
1122
22VV
VV
II
IInn
nnpp
ppuu
uutt
tt
SS
SSee
eerr
rrii
iiee
eess
ss
DD
DDCC
CC-
-DD
DDCC
CC
CC
CCoo
oonn
nnvv
vvee
eerr
rrtt
ttee
eerr
rrss
ss
33
33..
..33
33VV
VV,,
,,
55
55VV
VV,,
,,
11
1122
22VV
VV,,
,,
11
1155
55VV
VV
11
1100
00
WW
WWaa
aatt
tttt
tt
SS
SSii
iinn
nngg
ggll
llee
ee
OO
OOuu
uutt
ttpp
ppuu
uutt
tt
-7-
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TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662
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AEE02A12 Output Characteristics
Power 10 W
Output Current 2 A
Output Setpoint Voltage 4.95 5 5.05 Vdc Vin=12V, Io=2A
Line Regulation 0.2 %Vo Vin=9~18V, Io=2A
Load Regulation 0.5 %Vo Io=0~2A, Vin=12V
Dynamic Response
50-75% load 100 %Vo Ta=25°C, DI/Dt=1A/10µs
200 µs Ta=25°C, DI/Dt=1A/10µs
50-25% load 100 %Vo Ta=25°C, DI/Dt=1A/10µs
200 µs Ta=25°C, DI/Dt=1A/10µs
Current Limit Threshold 2.2 3.0 A
Short Circuit Current ------- A can endure longterm shortcircuit
Efficiency 79 81 % Vin=12V, Io=2A, Ta=25°C
T rim Range 90 110 %Vo
Over Voltage Protection Setpoint ------- V
Temperature Regulation 0.04 %Vo/°C
Ripple (rms) 10 mV ( 0 to 20MHz Bandwidth )
Noise (p-p) 40 mV ( 0 to 20MHz Bandwidth )
Switching Frequency 330 kHz
Output Capacitor 100 µF
Characteristic Min Typ Max Units Notes
AEE01B12 Output Characteristics
Power 10 W
Output Current 0.84 A
Output Setpoint Voltage 11.88 12 12.12 Vdc V in=12V, Io=0.68A
Line Regulation 0.2 %Vo Vin=9~18V, Io=0.68A
Load Regulation 0.5 %Vo Io=0~0.68A, Vin=12V
Dynamic Response
50-75% load 100 mV Ta=25°C, DI/Dt=1A/10µs
200 µs Ta=25°C, DI/Dt=1A/10µs
50-25% load 100 mV Ta=25°C, DI/Dt=1A/10µs
200 µs Ta=25°C, DI/Dt=1A/10µs
Current Limit Threshold 0.92 1.26 A
Short Circuit Current -------- A can endure longterm shortcircuit
Efficiency 82 84 % V in=12V, Io=0.68A, Ta=25°C
T rim Range 90 110 %Vo
Over Voltage Protection Setpoint -------- V
Temperature Regulation 0.02 %Vo/°C
Ripple (rms) 10 mV ( 0 to 20MHz Bandwidth )
Noise (pp) 40 mV ( 0 to 20MHz Bandwidth )
Switching Frequency 330 kHz
Output Capacitor 100 µF
AA
AAEE
EEEE
EE-
-11
1100
00WW
WW
11
1122
22VV
VV
II
IInn
nnpp
ppuu
uutt
tt
SS
SSee
eerr
rrii
iiee
eess
ss
DD
DDCC
CC-
-DD
DDCC
CC
CC
CCoo
oonn
nnvv
vvee
eerr
rrtt
ttee
eerr
rrss
ss
33
33..
..33
33VV
VV,,
,,
55
55VV
VV,,
,,
11
1122
22VV
VV,,
,,
11
1155
55VV
VV
11
1100
00
WW
WWaa
aatt
tttt
tt
SS
SSii
iinn
nngg
ggll
llee
ee
OO
OOuu
uutt
ttpp
ppuu
uutt
tt
-8-
USA Europe Asia
TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662
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Characteristic Min Typ Max Units Notes
AA
AAEE
EEEE
EE-
-11
1100
00WW
WW
11
1122
22VV
VV
II
IInn
nnpp
ppuu
uutt
tt
SS
SSee
eerr
rrii
iiee
eess
ss
DD
DDCC
CC-
-DD
DDCC
CC
CC
CCoo
oonn
nnvv
vvee
eerr
rrtt
ttee
eerr
rrss
ss
33
33..
..33
33VV
VV,,
,,
55
55VV
VV,,
,,
11
1122
22VV
VV,,
,,
11
1155
55VV
VV
11
1100
00
WW
WWaa
aatt
tttt
tt
SS
SSii
iinn
nngg
ggll
llee
ee
OO
OOuu
uutt
ttpp
ppuu
uutt
tt
-9-
USA Europe Asia
TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662
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AEE01C12 Output Characteristics
Power 10 W
Output Current 0.68 A
Output Setpoint Voltage 14.85 15 15.15 Vdc Vin=15V, Io=0.68A
Line Regulation 0.2 %Vo Vin=9~18V, Io=0.68A
Load Regulation 0.5 %Vo Io=0~0.68A, V in=12V
Dynamic Response
50-75% load 100 mV Ta=25°C, DI/Dt=1A/10µs
200 µs Ta=25°C, DI/Dt=1A/10µs
50-25% load 100 mV Ta=25°C, DI/Dt=1A/10µs
200 µs Ta=25°C, DI/Dt=1A/10µs
Current Limit Threshold 0.75 1.02 A
Short Circuit Current --------- A can endure longterm shortcircuit
Efficiency 83 85 % Vin=12V, Io=0.68A, Ta=25°C
T rim Range 90 110 %Vo
Over Voltage Protection Setpoint --------- V
Temperature Regulation 0.02 %Vo/°C
Ripple (rms) 10 mV ( 0 to 20MHz Bandwidth )
Noise (pp) 40 mV ( 0 to 20MHz Bandwidth )
Switching Frequency 330 kHz
Output Capacitor 100 µF
Characteristic Min Typ Max Units Notes
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AA
AAEE
EEEE
EE-
-11
1100
00WW
WW
11
1122
22VV
VV
II
IInn
nnpp
ppuu
uutt
tt
SS
SSee
eerr
rrii
iiee
eess
ss
DD
DDCC
CC-
-DD
DDCC
CC
CC
CCoo
oonn
nnvv
vvee
eerr
rrtt
ttee
eerr
rrss
ss
33
33..
..33
33VV
VV,,
,,
55
55VV
VV,,
,,
11
1122
22VV
VV,,
,,
11
1155
55VV
VV
11
1100
00
WW
WWaa
aatt
tttt
tt
SS
SSii
iinn
nngg
ggll
llee
ee
OO
OOuu
uutt
ttpp
ppuu
uutt
tt
-10-
Characteristic Curves
Characteristic Curves (at 25
(at 25 °C)
°C)
Output Current (Amps)
Efficiency (%)
70
75
80
85
90
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6
AEE02F12
AEE02A12
AEE01B12
AEE01C12
Typical Input-Output Curves
AEE-10W 12Vin Single Output Series
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
8.5 13.5 18.5
Input Voltage (volts)
Input Current (amps)
AEE02F12
AEE02A12
AEE01B12
AEE01C12
Output Voltage (volts)
Output Curent (amps)
0
2
4
6
8
10
12
14
16
0246
AEE02F12
AEE02A12
AEE01B12
AEE01C12
Typical Overcurrent Protection
AEE-10W 12Vin Single Output Series
Typical Efficiency Curves
AEE-10W 12Vin Single Output Series
AA
AAEE
EEEE
EE-
-11
1100
00WW
WW
11
1122
22VV
VV
II
IInn
nnpp
ppuu
uutt
tt
SS
SSee
eerr
rrii
iiee
eess
ss
DD
DDCC
CC-
-DD
DDCC
CC
CC
CCoo
oonn
nnvv
vvee
eerr
rrtt
ttee
eerr
rrss
ss
33
33..
..33
33VV
VV,,
,,
55
55VV
VV,,
,,
11
1122
22VV
VV,,
,,
11
1155
55VV
VV
11
1100
00
WW
WWaa
aatt
tttt
tt
SS
SSii
iinn
nngg
ggll
llee
ee
OO
OOuu
uutt
ttpp
ppuu
uutt
tt
-11-
USA Europe Asia
TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662
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T
Transient response
ransient response (rated input voltage, step load, at 25 °C)
(rated input voltage, step load, at 25 °C)
Typical Transient Response to Step Load
Change from 50%-75%Iomax
AEE02A12
Typical Transient Response to Step Load
Change from 75%-50%Iomax
AEE02A12
Typical Start-Up from Power On
AEE02A12 Typical Shutdown from Power Off
AEE02A12
AA
AAEE
EEEE
EE-
-11
1100
00WW
WW
11
1122
22VV
VV
II
IInn
nnpp
ppuu
uutt
tt
SS
SSee
eerr
rrii
iiee
eess
ss
DD
DDCC
CC-
-DD
DDCC
CC
CC
CCoo
oonn
nnvv
vvee
eerr
rrtt
ttee
eerr
rrss
ss
33
33..
..33
33VV
VV,,
,,
55
55VV
VV,,
,,
11
1122
22VV
VV,,
,,
11
1155
55VV
VV
11
1100
00
WW
WWaa
aatt
tttt
tt
SS
SSii
iinn
nngg
ggll
llee
ee
OO
OOuu
uutt
ttpp
ppuu
uutt
tt
-12-
USA Europe Asia
TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662
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Pin Location
Pin Location
The +Vin and -Vin input connection pins are
located as shown in Figure 1. AEE-10W 12V
input converters have a 2:1 input voltage range
of 9-18V.
Care should be taken to avoid applying
reverse polarity to the input which can dam-
age the converter.
Input Characteristic
Input Characteristic
Fusing:
Fusing:
The AEE-10W 12V input power module has
no internal fuse. An external fuse must
always be employed!
To meet international safety requirements, a
250 V olt rated fuse should be used. If one of the
input lines is connected to chassis ground, then
the fuse must be placed in the other input line.
Standard safety agency regulations require
input fusing. Recommended fuse ratings for the
AEE-10W 12Vin Series are shown in Table 1.
T
Table 1
able 1
Input Reverse V
Input Reverse Voltage Protection
oltage Protection
Under installation and cabling conditions where
reverse polarity across the input may occur,
reverse polarity protection is recommended.
Protection can easily be provided as shown in
Figure 2. In both cases the diode rating is deter-
mined by the power of the converter. Diodes
should be rated at 5A/25V for the AEE-10W
12Vin single output series.
Placing the diode across the inputs rather
than in-line with the input offers an advan-
tage in that the diode only conducts in a
reverse polarity condition, which increases
circuit efficiency and thermal performance.
Input Filter
Input Filter
Input filters are included in the converters to
help achieve standard system emissions certifi-
cations. Some users however, may find that
additional input filtering is necessary. The AEE-
Trim
Fig.1. Pins
Series Fuse Rating
12Vin 4A
+Vin
-Vin
+Vin
-Vin
Fig.2. Reverse Polarity Protection Circuits
AA
AAEE
EEEE
EE-
-11
1100
00WW
WW
11
1122
22VV
VV
II
IInn
nnpp
ppuu
uutt
tt
SS
SSee
eerr
rrii
iiee
eess
ss
DD
DDCC
CC-
-DD
DDCC
CC
CC
CCoo
oonn
nnvv
vvee
eerr
rrtt
ttee
eerr
rrss
ss
33
33..
..33
33VV
VV,,
,,
55
55VV
VV,,
,,
11
1122
22VV
VV,,
,,
11
1155
55VV
VV
11
1100
00
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-13-
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TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662
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10W 12Vin series has an internal switching fre-
quency of 330 kHz so a high frequency capac-
itor mounted close to the input terminals pro-
duces the best results. To reduce reflected
noise, a capacitor can be added across the
input as shown in Figure 3, forming a πfilter. A
47µF/25V electrolytic capacitor is recommend-
ed for C1.
For conditions where EMI is a concern, a differ-
ent input filter can be used. Figure 4 shows an
input filter designed to reduce EMI effects. L1 is
a 12 µH differential inductor, C1 is a 47µF/25V
electrolytic capacitor, and C0 is a 1µF/25V
metal film or ceramic high frequency capacitor.
When a filter inductor L1 is connected in series
with the power converter input, an input capac-
itor C0 should be added. An input capacitor C0
should also be used when the input wiring is
long, since the wiring can act as an inductor.
Failure to use an input capacitor under these
conditions can produce large input voltage
spikes and an unstable output.
Remote On/Of
Remote On/Off function(optional)
f function(optional)
The AEE-10W 12Vin single output series is
negative logic, remote on/off turns the module
off during a logic high on the CNT pin, and turns
the module on during a logic low on the CNT
pin.
To turn the power module on or off, the user
must supply a switch to control the voltage on
the CNT pin, the switcher may be an open col-
lector or equivalent (see Fig.5.).
The logic low is Von/off = 0 V to +0.7V.
The logic high is Von/off = +3.6V to +6V.
The module does not have internal capacitance
to reduce noise at the CNT pin. Additional
capacitance is needed. A 1uF/25V electrolytic
capacitor is recommended for C1.
Input-Output Characteristic
Input-Output Characteristic
Isolation:
Isolation:
The isolation voltage between input to output,
input to case and case to output are all greater
than 1500 Volt DC. If the system using the
power module needs to meet safety agency
approval, certain rules must be followed in the
design of the system using the module. In par-
ticular, all of the creepage and clearance
requirements of the end-use safety requirement
must be observed.
+Vin
-Vin
C1
Fig.3. Ripple Rejection Input Filter
+Vin
-Vin
C1
C0
L1
Fig.4. EMI Reduction Input Filter
CNT
C1
5V
Vcnt: ON--- Vcnt = 0 ~ +0.7V or CNT pin in midair
OFF--- Vcnt = +3.6V ~ +6V
C1: Recommended 1mF/25V
Vi(+)
Vi(-)
Fig.5. Remote ON/OFF Control
AA
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CC-
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CC
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33
33..
..33
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VV,,
,,
55
55VV
VV,,
,,
11
1122
22VV
VV,,
,,
11
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55VV
VV
11
1100
00
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-14-
USA Europe Asia
TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662
FAX: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com
Safety Consideration:
Safety Consideration:
For safety-agency approval of the system in
which the power module is used, the power
module must be installed in compliance with the
spacing and separation requirements of the
end-use safety agency standard, i.e., UL1950,
CSA C22.2 No. 950-95, and EN60950. The
input-to-output 1500VDC isolation is an opera-
tional insulation. The DC/DC power module
should be installed in end-use equipment, in
compliance with the requirements of the ulti-
mate application, and is intended to be supplied
by an isolated secondary circuit. When the sup-
ply to the DC/DC power module meets all the
requirements for SELV(<60Vdc), the output is
considered to remain within SELV limits (level
3). If connected to a 60Vdc power system, dou-
ble or reinforced insulation must be provided in
the power supply that isolates the input from
any hazardous voltages, including the ac
mains. One Vi pin and one Vo pin are to be
grounded or both the input and output pins are
to be kept floating. Single fault testing in the
power supply must be performed in combina-
tion with the DC/DC power module to demon-
strate that the output meets the requirement for
SELV. The input pins of the module are not
operator accessible.
Note: Do not ground either of the input pins of
the module, without grounding one of the output
pins. This may allow a non-SELV voltage to
appear between the output pin and ground.
Output Characteristics
Output Characteristics
Minimum Load Requirements:
Minimum Load Requirements:
There is no minimum load requirement for
the AEE-10W 12V input single output series
modules.
Output T
Output Trimming:
rimming:
Users can increase or decrease the output volt-
age set point of a module by connecting an
external resistor between the TRIM pin. The
trim resistor should be positioned close to the
module. If not using the trim feature, leave
the TRIM pin open.
Trimming up by more than 10% of the nominal
output may damage the converter or trig the
OVP protection. Trimming down more than
10% can cause the converter to regulate
improperly. Trim down and trim up circuits and
the corresponding configuration are shown in
Figure 6 to Figure 7.
The value of A,B,L are shown in the following:
V
I
(+)
V
I
(–)
V
O
(+)
V
O
(–)
TRIM
R
adj-up
R
LOAD
Radj-up =
A L
( Vo,adj - L ) - C - B KΩ
Fig.6. Trim Up Circuit and Equation
V
I
(+)
V
I
(–)
V
O
(+)
V
O
(–)
TRIM
R
adj-down
R
LOAD
Radj-down =( Vo,adj - L ) A
( Vo,nom - Vo,adj ) - B KΩ
Fig.7. Trim Down Circuit and Equation
Series A B C L
AEE02F12 2.05 2 2.083 1.26
AEE02A12 7.5 10 3.795 1.26
AEE01B12 9.53 10 12.757 2.5
AEE01C12 12.4 10 9.805 2.5
AA
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1100
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11
1122
22VV
VV
II
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SS
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rrii
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DD
DDCC
CC-
-DD
DDCC
CC
CC
CCoo
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nnvv
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rrtt
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rrss
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33
33..
..33
33VV
VV,,
,,
55
55VV
VV,,
,,
11
1122
22VV
VV,,
,,
11
1155
55VV
VV
11
1100
00
WW
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-15-
USA Europe Asia
TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662
FAX: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com
Note that at elevated output voltages the
maximum power rating of the module
remains the same, and the output current
capability will decrease correspondingly.
Output Over-Current Protection:
AEE-10W 12V input series DC/DC converters
feature foldback current limiting as part of their
Overcurrent Protection (OCP) circuits. When
output current exceeds 110 to 150% of rated
current, such as during a short circuit condition,
the output will shutdown. Note if input voltage
exceeds 20V, the continuous shortcircuit
may damage the module or decrease its life.
Output Filters
When the load is sensitive to ripple and noise,
an output filter can be added to minimize the
effects. A simple output filter to reduce output
ripple and noise can be made by connecting a
capacitor across the output as shown in Figure
8. The recommended value for the output
capacitor is 100µF/25V.
Extra care should be taken when long leads or
traces are used to provide power to the load.
Long lead lengths increase the chance for
noise to appear on the lines. Under these con-
ditions C2 can be added across the load as
shown in Figure 9. The recommended compo-
nent for C2 is 100µF/25V capacitor and con-
necting a 0.47µF/50V ceramic capacitor in par-
allel generally.
Decoupling
Noise on the power distribution system is not
always created by the converter. High speed
analog or digital loads with dynamic power
demands can cause noise to cross the power
inductor back onto the input lines. Noise can be
reduced by decoupling the load. In most cases,
connecting a 10 µF tantalum capacitor in paral-
lel with a 0.1µF ceramic capacitor across the
load will decouple it. The capacitors should be
connected as close to the load as possible.
Ground Loops
Ground loops occur when different circuits are
given multiple paths to common or earth
ground, as shown in Figure 10. Multiple ground
points can slightly different potential and cause
current flow through the circuit from one point to
another. This can result in additional noise in all
the circuits. To eliminate the problem, circuits
should be designed with a single ground con-
nection as shown in Figure 11.
+Vout
-Vout
Load
C+
2
Fig.8. Output Ripple Filter
+Vout
-Vout
Load
C3C2+
Fig.9. Output Ripple Filter For a Distant
Load
+Vout
-Vout Load Load
RLine
RLine RLine
RLine
RLine
R
Ground
Loop
()
COM
Fig. 11. Single Point Ground
Fig. 10. Ground Loops
Load Loa
d
RLine
RLine RLine
RLine
RLine
+Vout
-Vout
()
COM
AA
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11
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DD
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CC-
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CC
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33
33..
..33
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VV,,
,,
55
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VV,,
,,
11
1122
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VV,,
,,
11
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55VV
VV
11
1100
00
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-16-
USA Europe Asia
TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662
FAX: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com
Parallel Power Distribution
Figure 12 shows a typical parallel power distri-
bution design. Such designs, sometimes called
daisy chains, can be used for very low output
currents, but are not normally recommended.
The voltage across loads far from the source
can vary greatly depending on the IR drops
along the leads and changes in the loads clos-
er to the source. Dynamic load conditions
increase the potential problems.
Radial Power Distribution
Radial power distribution is the preferred
method of providing power to the load. Figure
13. shows how individual loads are connected
directly to the power source. This arrangement
requires additional power leads, but it avoids
the voltage variation problems associated with
the parallel power distribution technique.
Mixed Distribution
In the real world a combination of parallel and
radial power distribution is often used. Dynamic
and high current loads are connected using a
radial design, while static and low current loads
can be connected in parallel. This combined
approach minimizes the drawbacks of a parallel
design when a purely radial design is not feasi-
ble.
Redundant Operation
A common requirement in high reliability sys-
tems is to provide redundant power supplies.
The easiest way to do this is to place two con-
verters in parallel, providing fault tolerance but
not load sharing. Oring diodes should be used
to ensure that failure of one converter will not
cause failure of the second. Figure 15 shows
such an arrangement. Upon application of
power, one of the converters will provide a
slightly higher output voltage and will support
the full load demand. The second converter will
see a zero load condition and will “idle”. If the
first converter should fail, the second converter
will support the full load. When designing
redundant converter circuits, Shottky diodes
should be used to minimize the forward voltage
drop. The voltage drop across the Shottky
diodes must also be considered when deter-
mining load voltage requirements.
Load 1 Load 2 Load 3
+Vout
-Vout
RL1 RL2 RL3
RG1 RG2 RG3
I1 + I2 + I3I2 + I3I3
RL = Lead Resistance
RG = Ground Lead Resistance
Fig.12. Parallel Power Distribution
Load 1 Load 2 Load 3
+Vout
-Vout
RL1 RL2
RL3
RG1 RG2
RG3
RL = Lead Resistance
RG = Ground Lead Resistance
Fig.13. Radial Power Distribution
Load 1 Load 2 Load 3
+Vout
-Vout
RL1 RL2
RL3
RG1 RG2
RG3
RL = Lead Resistance
RG = Ground Lead Resistance
Load 4
RL4
RG4
Fig. 14. Mixed Power Distribution
+Vout
-Vout
+Vout
-Vout
Load
Fig. 15. Redundant Operation
AA
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11
1122
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DD
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CC-
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CC
CC
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33
33..
..33
33VV
VV,,
,,
55
55VV
VV,,
,,
11
1122
22VV
VV,,
,,
11
1155
55VV
VV
11
1100
00
WW
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SS
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-17-
USA Europe Asia
TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662
FAX: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com
Module Derating
Typical derating curves
AEE-10W 12V Input Series Mechanical Considerations
Installation
Although AEE-10W 12V input series converters can be mounted in any orientation, free air-flowing
must be taken. Normally power components are always put at the end of the airflow path or have the
separate airflow paths. This can keep other system equipment cooler and increase component life
spans.
Soldering
AEE-10W 12V input 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 sol-
dered at 260°C for less than 10 seconds.
When hand soldering, the iron temperature should be maintained at 425°C and applied to the con-
verter 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.
0
20
40
60
80
100
706050403020100-10-20
Ambient Temperature in degrees C
Percent maximum output power
Safe Operating Area
80 90
Maximum Case Temperature
100
AA
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1100
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11
1122
22VV
VV
II
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SS
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DD
DDCC
CC-
-DD
DDCC
CC
CC
CCoo
oonn
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rrtt
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rrss
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33
33..
..33
33VV
VV,,
,,
55
55VV
VV,,
,,
11
1122
22VV
VV,,
,,
11
1155
55VV
VV
11
1100
00
WW
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SS
SSii
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-18-
USA Europe Asia
TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662
FAX: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com
MTBF:
The MTBF, calculated in accordance with Bellcore TR-NWT-000332 is 3,000,000 hours. Obtaining this
MTBF in practice is entirely possible. If the ambient air temperature is expected to exceed +25°C, then
we also advise a oriented for the best possible cooling in the air stream.
ASTEC can supply replacements for converters from other manufacturers, or offer custom solutions.
Please contact the factory for details.
Recommended Hole Pattern:
Trim
CNT
AA
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-11
1100
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11
1122
22VV
VV
II
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DD
DDCC
CC-
-DD
DDCC
CC
CC
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eerr
rrtt
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rrss
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33
33..
..33
33VV
VV,,
,,
55
55VV
VV,,
,,
11
1122
22VV
VV,,
,,
11
1155
55VV
VV
11
1100
00
WW
WWaa
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SS
SSii
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-19-
USA Europe Asia
TEL: 1-760-930-4600 44-(0)1384-842-211 852-2437-9662
FAX: 1-760-930-0698 44-(0)1384-843-355 852-2402-4426 www.astec.com
Electrical Specs
Nominal Output Output Ripple Noise Efficiency Capacitive
Input Voltage Current (mV rms) (mV pp) (%) Load
(V) (V) (A) typ max typ max min typ (µf)
AEE02F12* 12 3.3 2.5 7 20 40 75 75 76 1000
AEE02A12* 12 5 2 7 20 40 75 77 78 1000
AEE01B12* 12 12 0.84 10 20 30 75 81 82 100
AEE01C12* 12 15 0.67 10 20 30 75 81 82 100
AEE02F24** 24 3.3 2.5 7 20 40 75 75 76 1000
AEE02A24** 24 5 2 7 20 40 75 77 78 1000
AEE01B24** 24 12 0.84 10 20 30 75 81 82 100
AEE01C24** 24 15 0.67 10 20 30 75 81 82 100
AEE02F48** 48 3.3 2.5 7 20 40 75 75 77 1000
AEE02A48** 48 5 2 7 20 40 75 77 80 2200
AEE01B48** 48 12 0.84 10 20 30 75 81 82 330
AEE01C48** 48 15 0.67 10 20 30 75 81 8 330
AEE01AA12* 12 ±5 ±1 10 20 60 100 77 79 100***
AEE00BB12* 12 ±12 ±0.42 10 20 90 100 81 83 100***
AEE00CC12* 12 ±15 ±0.33 10 20 90 100 81 83 47***
AEE01AA24 24 ±5 ±1 10 20 60 100 77 79 100***
AEE00BB24 24 ±12 ±0.42 10 20 90 100 81 83 100***
AEE00CC24 24 ±15 ±0.33 10 20 90 100 81 83 47***
AEE01AA48 48 ±5 ±1 10 20 60 100 77 79 100***
AEE00BB48 48 ±12 ±0.42 10 20 90 100 81 85 150***
AEE00CC48 48 ±15 ±0.33 10 20 90 100 81 83 47***
* The detailed information can reference to the “ AEE-10W 12V input single or dual output series application manual.”.
** The detailed information can reference to the “ AEE-10W 24V&48V signal output series application manual”.
*** “ Load per output.