AFL27009SX/CH [INFINEON]
ADVANCED ANALOG HIGH RELIABILITY HYBRID DC/DC CONVERTERS; 先进的模拟高可靠性混合DC / DC转换器
| 型号： | AFL27009SX/CH |
| 厂家： | 
Infineon |
| 描述： | ADVANCED ANALOG HIGH RELIABILITY HYBRID DC/DC CONVERTERS |
| 文件： | 总16页 (文件大小：446K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PD - 94435A
AFL270XXS SERIES
270V Input, Single Output
ADVANCED ANALOG
HIGH RELIABILITY
HYBRID DC/DC CONVERTERS
Description
The AFL Series of DC/DC converters feature high power
density with no derating over the full military tempera-
ture range. This series is offered as part of a complete
family of converters providing single and dual output
voltages and operating from nominal +28 or +270 volt
inputs with output power ranging from 80 to 120 watts.
For applications requiring higher output power, multiple
converters can be operated in parallel. The internal cur-
rent sharing circuits assure equal current distribution
among the paralleled converters. This series incorpo-
rates Advanced Analog’s proprietary magnetic pulse
feedback technology providing optimum dynamic line
and load regulation response. This feedback system
samples the output voltage at the pulse width modulator
fixed clock frequency, nominally 550 KHz. Multiple con-
verters can be synchronized to a system clock in the
500 KHz to 700 KHz range or to the synchronization
output of one converter. Undervoltage lockout, primary
and secondary referenced inhibit, soft-start and load
fault protection are provided on all models.
AFL
Features
n 160 To 400 Volt Input Range
n 5, 6, 9, 12, 15 and 28 Volt Outputs Available
n High Power Density - up to 84 W /in
3
n Up To 120 Watt Output Power
n Parallel Operation with Stress and Current
Sharing
n Low Profile (0.380") Seam Welded Package
n Ceramic Feedthru Copper Core Pins
n High Efficiency - to 87%
n Full Military Temperature Range
n Continuous Short Circuit and Overload
Protection
n Remote Sensing Terminals
n Primary and Secondary Referenced
Inhibit Functions
n Line Rejection > 60 dB - DC to 50KHz
n External Synchronization Port
n Fault Tolerant Design
These converters are hermetically packaged in two en-
closure variations, utilizing copper core pins to mini-
mize resistive DC losses. Three lead styles are avail-
able, each fabricated with Advanced Analog’s rugged
ceramic lead-to-package seal assuring long term
hermeticity in the most harsh environments.
n Dual Output Versions Available
n Standard Military Drawings Available
Manufactured in a facility fully qualified to MIL-PRF-
38534, these converters are available in four screening
grades to satisfy a wide range of requirements. The CH
grade is fully compliant to the requirements of MIL-PRF-
38534 for class H. The HB grade is fully processed and
screened to the class H requirement, but does not have
material element evaluated to the class H requirement.
Both grades are tested to meet the complete group “A”
test specification over the full military temperature range
without output power deration. Two grades with more
limited screening are also available for use in less
demanding applications. Variations in electrical,
mechanical and screening can be accommo-
dated. Contact Advanced Analog for special re-
quirements.
www.irf.com
1
07/24/02
AFL270XXS Series
Specifications
ABSOLUTE MAXIMUM RATINGS
Input Voltage
-0.5V to 500V
300°C for 10 seconds
Soldering Temperature
Case Temperature
Operating
Storage
-55°C to +125°C
-65°C to +135°C
Static Characteristics -55°C ≤ TCASE ≤ +125°C, 160 ≤ VIN ≤ 400 unless otherwise specified.
Group A
Parameter
INPUT VOLTAGE
Subgroups
Test Conditions
Min
Nom
Max
Unit
Note 6
160
270
400
V
V
IN
= 270 Volts, 100% Load
OUTPUT VOLTAGE
1
1
1
1
1
1
4.95
5.94
8.91
11.88
14.85
27.72
5.00
6.00
9.00
12.00
15.00
28.00
5.05
6.06
9.09
12.12
15.15
28.28
V
V
V
V
V
V
AFL27005S
AFL27006S
AFL27009S
AFL27012S
AFL27015S
AFL27028S
2, 3
2, 3
2, 3
2, 3
2, 3
2, 3
4.90
5.88
8.82
11.76
14.70
27.44
5.10
6.12
9.18
12.24
15.30
28.56
V
V
V
V
V
V
AFL27005S
AFL27006S
AFL27009S
AFL27012S
AFL27015S
AFL27028S
V
IN
= 160, 270, 400 Volts - Note 6
OUTPUT CURRENT
OUTPUT POWER
AFL27005S
AFL27006S
AFL27009S
AFL27012S
AFL27015S
AFL27028S
16.0
13.5
10.0
9.0
8.0
4.0
A
A
A
A
A
A
Note 6
Note 1
80
81
90
108
120
112
W
W
W
W
W
W
AFL27005S
AFL27006S
AFL27009S
AFL27012S
AFL27015S
AFL27028S
MAXIMUM CAPACITIVE LOAD
10,000
µfd
V
IN
= 270 Volts, 100% Load - Note 1, 6 -0.015
+0.015
%/°C
OUTPUT VOLTAGE
TEMPERATURE COEFFICIENT
OUTPUT VOLTAGE REGULATION
1, 2, 3
1, 2, 3
No Load, 50% Load, 100% Load
-70.0
-10.0
+70.0
+10.0
mV
mV
AFL27028S
All Others
Line
Line
V
= 160, 270, 400 Volts
IN
1, 2, 3
-1.0
+1.0
%
Load
OUTPUT RIPPLE VOLTAGE
AFL27005S
V
= 160, 270, 400 Volts, 100% Load,
IN
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
30
35
mV
pp
BW = 10MHz
mV
AFL27006S
AFL27009S
AFL27012S
AFL27015S
AFL27028S
pp
40
mV
pp
45
mV
pp
50
mV
pp
100
mV
pp
For Notes to Specifications, refer to page 4
2
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AFL270XXS Series
Static Characteristics (Continued)
Group A
Parameter
INPUT CURRENT
Subgroups
Test Conditions
= 270 Volts
Min
Nom
Max
Unit
V
IN
1
2, 3
1, 2, 3
1, 2, 3
15
17
3.0
5.0
mA
mA
mA
mA
No Load
I
= 0
OUT
Inhibit 1
Inhibit 2
Pin 4 Shorted to Pin 2
Pin 12 Shorted to Pin 8
V
= 270 Volts, 100% Load
INPUT RIPPLE CURRENT
AFL27005S
IN
B.W. = 10MHz
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
60
60
70
70
80
80
mA
pp
mA
mA
mA
mA
mA
AFL27006S
AFL27009S
AFL27012S
AFL27015S
AFL27028S
pp
pp
pp
pp
pp
V
= 90% V
Note 5
CURRENT LIMIT POINT
OUT
NOM
1
2
3
115
105
125
125
115
140
%
%
%
Expressed as a Percentage
of Full Rated Load
LOAD FAULT POWER DISSIPATION
VIN = 270 Volts
1, 2, 3
30
W
Overload or Short Circuit
EFFICIENCY
AFL27005S
AFL27006S
AFL27009S
AFL27012S
AFL27015S
AFL27028S
VIN = 270 Volts, 100% Load
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
78
79
80
82
83
82
82
83
84
85
87
85
%
%
%
%
%
%
ENABLE INPUTS (Inhibit Function)
Converter Off
1, 2, 3
1, 2, 3
Logical Low, Pin 4 or Pin 12
Note 1
Logical High, Pin 4 and Pin 12 - Note 9 2.0
Note 1
-0.5
0.8
100
50
V
µA
V
Sink Current
Converter On
Sink Current
100
µA
SWITCHING FREQUENCY
1, 2, 3
500
550
600
KHz
SYNCHRONIZATION INPUT
Frequency Range
1, 2, 3
1, 2, 3
1, 2, 3
500
2.0
-0.5
700
10
0.8
100
80
KHz
V
V
nSec
%
Pulse Amplitude, Hi
Pulse Amplitude, Lo
Pulse Rise Time
Note 1
Note 1
20
Pulse Duty Cycle
ISOLATION
1
Input to Output or Any Pin to Case
(except Pin 3). Test @ 500VDC
100
MΩ
DEVICE WEIGHT
MTBF
Slight Variations with Case Style
85
gms
MIL-HDBK-217F, AIF @ T = 70°C
C
300
KHrs
For Notes to Specifications, refer to page 4
www.irf.com
3
AFL270XXS Series
Dynamic Characteristics -55°C ≤ TCASE ≤ +125°C, VIN = 270 Volts unless otherwise specified.
Group A
Parameter
Subgroup
s
Test Conditions
Min
Nom
Max
Unit
LOAD TRANSIENT RESPONSE
Note 2, 8
4, 5, 6
4, 5, 6
Load Step 50%
Load Step 10%
100%
50%
-450
-450
450
200
mV
µSec
AFL27005S
AFL27006S
AFL27009S
AFL27012S
AFL27015S
AFL27028S
Amplitude
Recovery
4, 5, 6
4, 5, 6
450
400
mV
µSec
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 50%
Load Step 10%
100%
50%
-450
-450
450
200
mV
µSec
Amplitude
Recovery
4, 5, 6
4, 5, 6
450
400
mV
µSec
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 50%
Load Step 10%
100%
50%
-600
-600
600
200
mV
µSec
Amplitude
Recovery
4, 5, 6
4, 5, 6
600
400
mV
µSec
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 50%
Load Step 10%
100%
50%
-750
-750
750
200
mV
µSec
Amplitude
Recovery
4, 5, 6
4, 5, 6
750
400
mV
µSec
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 50%
Load Step 10%
100%
50%
-900
-900
900
200
mV
µSec
Amplitude
Recovery
4, 5, 6
4, 5, 6
900
400
mV
µSec
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 50%
Load Step 10%
100%
50%
-1200
-1200
1200
200
mV
µSec
Amplitude
Recovery
4, 5, 6
4, 5, 6
1200
400
mV
µSec
Amplitude
Recovery
LINE TRANSIENT RESPONSE
Note 1, 2, 3
VIN Step = 160
400 Volts
-500
500
500
mV
µSec
Amplitude
Recovery
TURN-ON CHARACTERISTICS
VIN = 160, 270, 400 Volts. Note 4
Overshoot
Delay
4, 5, 6
4, 5, 6
Enable 1, 2 on. (Pins 4, 12 high or
open)
250
120
mV
mSec
50
60
75
70
Same as Turn On Characteristics.
LOAD FAULT RECOVERY
LINE REJECTION
MIL-STD-461, CS101, 30Hz to 50KHz
Note 1
dB
Notes to Specifications:
1.
2.
3.
4.
5.
6.
7.
8.
9.
Parameters not 100% tested but are guaranteed to the limits specified in the table.
Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1% of VOUT at 50% load.
Line transient transition time ≥ 100 µSec.
Turn-on delay is measured with an input voltage rise time of between 100 and 500 volts per millisecond.
Current limit point is that condition of excess load causing output voltage to drop to 90% of nominal.
Parameter verified as part of another test.
All electrical tests are performed with the remote sense leads connected to the output leads at the load.
Load transient transition time ≥ 10 µSec.
Enable inputs internally pulled high. Nominal open circuit voltage ≈ 4.0VDC.
4
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AFL270XXS Series
AFL270XXS Circuit Description
Figure I. AFL Single Output Block Diagram
INPUT
FILTER
DC INPUT
ENABLE 1
1
4
OUTPUT
FILTER
PRIMARY
BIAS SUPPLY
7
+ OUTPUT
+ SENSE
10
CURRENT
SENSE
SYNC OUTPUT
5
SHARE
11
12
SHARE
CONTROL
AMPLIFIER
ERROR
AMP
& REF
SYNC INPUT
CASE
6
3
2
FB
ENABLE 2
SENSE
AMPLIFIER
9
8
- SENSE
INPUT RETURN
OUTPUT RETURN
used, the sense leads should be connected to their respec-
tive output terminals at the converter. Figure III. illustrates a
typical application.
Circuit Operation and Application Information
The AFL series of converters employ a forward switched
mode converter topology. (refer to Figure I.) Operation of
the device is initiated when a DC voltage whose magnitude
is within the specified input limits is applied between pins 1
and 2. If pin 4 is enabled (at a logical 1 or open) the primary
bias supply will begin generating a regulated housekeeping
voltage bringing the circuitry on the primary side of the con-
verter to life. Two power MOSFETs used to chop the DC
input voltage into a high frequency square wave, apply this
chopped voltage to the power transformer. As this switch-
ing is initiated, a voltage is impressed on a second winding
of the power transformer which is then rectified and applied
to the primary bias supply. When this occurs, the input
voltage is shut out and the primary bias voltage becomes
exclusively internally generated.
Inhibiting Converter Output
As an alternative to application and removal of the DC
voltage to the input, the user can control the converter
output by providing TTL compatible, positive logic signals
to either of two enable pins (pin 4 or 12). The distinction
between these two signal ports is that enable 1 (pin 4) is
referenced to the input return (pin 2) while enable 2 (pin 12)
is referenced to the output return (pin 8). Thus, the user
has access to an inhibit function on either side of the isola-
tion barrier. Each port is internally pulled “high” so that
when not used, an open connection on both enable pins
permits normal converter operation. When their use is
desired, a logical “low” on either port will shut the con-
verter down.
The switched voltage impressed on the secondary output
transformer winding is rectified and filtered to provide the
converter output voltage. An error amplifier on the second-
ary side compares the output voltage to a precision refer-
ence and generates an error signal proportional to the dif-
ference. This error signal is magnetically coupled through
the feedback transformer into the controller section of the
converter varying the pulse width of the square wave sig-
nal driving the MOSFETs, narrowing the width if the output
voltage is too high and widening it if it is too low.
Figure II. Enable Input Equivalent Circuit
+5.6V
100K
1N4148
Pin 4 or
Pin 12
Disable
290K
Remote Sensing
2N3904
Connection of the + and - sense leads at a remotely locat-
led load permits compensation for resistive voltage drop
between the converter output and the load when they are
physically separated by a significant distance. This con-
nection allows regulation to the placard voltage at the point
of application. When the remote sensing features is not
150K
Pin 2 or
Pin 8
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5
AFL270XXS Series
Internally, these ports differ slightly in their function. In use,
a low on Enable 1 completely shuts down all circuits in the
converter while a low on Enable 2 shuts down the second-
ary side while altering the controller duty cycle to near zero.
Externally, the use of either port is transparent save for
minor differences in idle current. (See specification table).
level of +2.0 volts. The sync output of another converter
which has been designated as the master oscillator pro-
vides a convenient frequency source for this mode of op-
eration. When external synchronization is not required, the
sync in pin should be left unconnected thereby permitting
the converter to operate at its’ own internally set frequency.
The sync output signal is a continuous pulse train set at 550
±50 KHz, with a duty cycle of 15 ±5%. This signal is refer-
enced to the input return and has been tailored to be com-
patible with the AFL sync input port. Transition times are
less than 100 ns and the low level output impedance is less
than 50 ohms. This signal is active when the DC input
voltage is within the specified operating range and the con-
verter is not inhibited. This output has adequate drive re-
serve to synchronize at least five additional converters. A
typical synchronization connection option is illustrated in
Figure III.
Synchronization of Multiple Converters
When operating multiple converters, system requirements
often dictate operation of the converters at a common fre-
quency. To accommodate this requirement, the AFL series
converters provide both a synchronization input and out-
put.
The sync input port permits synchronization of an AFL co-
nverter to any compatible external frequency source oper-
ating between 500 and 700 KHz. This input signal should
be referenced to the input return and have a 10% to 90%
duty cycle. Compatibility requires transition times less th an
100 ns, maximum low level of +0.8 volts and a minimum high
Figure III. Preferred Connection for Parallel Operation
1
12
Power
Input
Enable 2
Vin
Rtn
Share
Sense
Sense
Return
Case
Enable
+
-
AFL
AFL
1
Sync Out
Sync In
+
Vout
6
1
7
Optional
Synchronization
Connection
Share Bus
12
Enable
2
Vin
Rtn
Share
Sense
Sense
Return
Case
+
-
Enable
1
Sync Out
Sync In
to Load
+
Vout
7
6
1
12
Enable
2
Vin
Rtn
Share
Sense
Sense
Return
Case
+
-
AFL
Enable
1
Sync Out
Sync In
+
Vout
7
6
(Other Converters)
Parallel Operation-Current and Stress Sharing
AFL series operating in the parallel mode is that in addition
to sharing the current, the stress induced by temperature
will also be shared. Thus if one member of a paralleled set
is operating at a higher case temperture, the current it pro-
vides to the load will be reduced as compensation for the
temperature induced stress on that device.
Figure III. illustrates the preferred connection scheme for
operation of a set of AFL converters with outputs operating
in parallel. Use of this connection permits equal sharing of
a load current exceeding the capacity of an individual AFL
among the members of the set. An important feature of the
6
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AFL270XXS Series
When operating in the shared mode, it is important that
symmetry of connection be maintained as an assurance of
optimum load sharing performance. Thus, converter out-
puts should be connected to the load with equal lengths of
wire of the same gauge and sense leads from each con-
verter should be connected to a common physical point,
preferably at the load along with the converter output and
return leads. All converters in a paralleled set must have
their share pins connected together. This arrangement is
diagrammatically illustrated in Figure III. showing the out-
puts and sense pins connected at a star point which is
located close as possible to the load.
for minor variations of either surface. While other available
types of heat conductive materials and compounds may
provide similar performance, these alternatives are often
less convinient and are frequently messy to use.
A conservative aid to estimating the total heat sink surface
area (AHEAT SINK) required to set the maximum case temp-
erature rise (∆T) above ambient temperature is given by
the following expression:
−1.43
∆T
A
HEAT SINK
≈
− 3.0
0.85
As a consequence of the topology utilized in the current
sharing circuit, the share pin may be used for other func-
tions. In applications requiring a single converter, the volt-
age appearing on the share pin may be used as a “current
monitor”. The share pin open circuit voltage is nominally
+1.00v at no load and increases linearly with increasing
output current to +2.20v at full load. The share pin voltage is
referenced to the output return pin.
80P
where
∆T = Case temperature rise above ambient
1
P = Device dissipation in Watts = POUT
Eff
−1
As an example, it is desired to maintain the case tempera-
ture of an AFL27015S at ≤ +85°C in an area where the
ambient temperature is held at a constant +25°C; then
Thermal Considerations
Because of the incorporation of many innovative techno-
logical concepts, the AFL series of converters is capable of
providing very high output power from a package of very
small volume. These magnitudes of power density can only
be obtained by combining high circuit efficiency with effec-
tive methods of heat removal from the die junctions. This
requirement has been effectively addressed inside the de-
vice; but when operating at maximum loads, a significant
amount of heat will be generated and this heat must be
conducted away from the case. To maintain the case tem-
perature at or below the specified maximum of 125°C, this
heat must be transferred by conduction to an appropriate
heat dissipater held in intimate contact with the converter
base-plate.
∆T = 85 - 25 = 60°C
From the Specification Table, the worst case full load effi-
ciency for this device is 83%; therefore the power dissipa-
tion at full load is given by
1
(
)
P
120
1
120 0.205 24.6W
=
•
−
=
•
=
.83
and the required heat sink area is
−1.43
60
A
HEAT SINK
=
− 3.0 = 71 in2
Because effectiveness of this heat transfer is dependent
on the intimacy of the baseplate/heatsink interface, it is st-
rongly recommended that a high thermal conductivity heat
transferance medium is inserted between the baseplate a-
nd heatsink. The material most frequently utilized at the fa-
ctory during all testing and burn-in processes is sold under
80• 24.60.85
Thus, a total heat sink surface area (including fins, if any) of
2
71 in in this example, would limit case rise to 60°C above
ambient. A flat aluminum plate, 0.25" thick and of approxi-
mate dimension 4" by 9" (36 in per side) would suffice for
1
2
the trade name of Sil-Pad 400 . This particular pro duct
is an insulator but electrically conductive versions are also
available. Use of these materials assures maximum surfa-
ce contact with the heat dissipator thereby compensating
this application in a still air environment. Note that to meet
the criteria in this example, both sides of the plate require
unrestricted exposure to the ambient air.
1
Sil-Pad is a registered Trade Mark of Bergquist, Minneapolis, MN
www.irf.com
7
AFL270XXS Series
Input Filter
Finding a resistor value for a particular output voltage, is
simply a matter of substituting the desired output voltage
and the nominal device voltage into the equation and solv-
ing for the corresponding resistor value.
The AFL270XXS series converters incorporate a single
stage LC input filter whose elements dominate the input
load impedance characteristic during the turn-on sequence.
The input circuit is as shown in Figure IV.
Figure V. Connection for VOUT Adjustment
Figure IV. Input Filter Circuit
Enable
2
Share
Sense
Sense
Return
R ADJ
8.4µH
+
AFL270xxS
-
Pin
Pin
1
To Load
+
Vout
0.54µfd
Caution: Do not set Radj < 500Ω
2
Attempts to adjust the output voltage to a value greater than
120% of nominal should be avoided because of the poten-
tial of exceeding internal component stress ratings and sub-
sequent operation to failure. Under no circumstance should
the external setting resistor be made less than 500Ω. By
remaining within this specified range of values, completely
safe operation fully within normal component derating is
assured.
Undervoltage Lockout
A minimum voltage is required at the input of the converter
to initiate operation. This voltage is set to 150 ± 5 volts. To
preclude the possibility of noise or other variations at the
input falsely initiating and halting converter operation, a hys-
teresis of approximately 10 volts is incorporated in this cir-
cuit. Thus if the input voltage droops to 140 ± 5 volts, the
converter will shut down and remain inoperative until the
input voltage returns to ≈ 150 volts.
Examination of the equation relating output voltage and re-
sistor value reveals a special benefit of the circuit topology
utilized for remote sensing of output voltage in the
AFL270XXS series of converters. It is apparent that as the
resistance increases, the output voltage approaches the
nominal set value of the device. In fact the calculated limit-
ing value of output voltage as the adjusting resistor be-
comes very large is 25mV above nominal device voltage.
OutputVoltage Adjust
In addition to permitting close voltage regulation of remotely
located loads, it is possible to utilize the converter sense
pins to incrementally increase the output voltage over a
limited range.The adjustments made possible by this method
are intended as a means to “trim” the output to a voltage
setting for some particular application, but are not intended
to create an adjustable output converter. These output
voltage setting variations are obtained by connecting an
appropriate resistor value between the +sense and -sense
pins while connecting the -sense pin to the output return pin
as shown in Figure V. below. The range of adjustment and
corresponding range of resistance values can be deter-
mined by use of the equation presented below.
The consequence is that if the +sense connection is un-
intentionally broken, an AFL270XXS has a fail-safe output
voltage of Vout + 25mV, where the 25mV is independent of
the nominal output voltage. It can be further demonstrated
that in the event of both the + and - sense connections
being broken, the output will be limited to Vout + 440mV.
This 440 mV is also essentially constant independent of the
nominal output voltage. While operation in this condition is
not damaging to the device, not all performance parameters
will be met.
Performance Data
NOM
V
adj
R
= 100•
Typical performance data is graphically presented on the follow-
ing pages for selected parameters on a variety of AFL270XXS
type converters. The data presented was selected as repre-
sentative of more critical parameters and for general interest in
typical converter applications.
OUT
NOM
V
- V
-.025
Where VNOM = device nominal output voltage, and
VOUT = desired output voltage
8
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AFL270XXS Series
AFL270XXS - Typical Line Rejection Characteristics
Measured per MIL-STD 461D, CS101 with 100% Output Load, Vin = 270VDC
AFL27005S
AFL27006S
0
0
-20
-20
-40
-60
-40
-60
-80
-80
-100
-100
30
100
1000
10000
50000
30
100
100
100
1000
10000
10000
10000
50000
Frequency ( Hz )
Frequency ( Hz )
AFL27009S
AFL27012S
0
0
-20
-40
-20
-40
-60
-60
-80
-80
-100
-100
30
1000
50000
30
100
1000
10000
50000
Frequency ( Hz )
Frequency ( Hz )
AFL27015S
AFL27028S
0
-20
0
-20
-40
-40
-60
-60
-80
-80
-100
-100
30
1000
50000
30
100
1000
10000
50000
Frequency ( Hz )
Frequency ( Hz )
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9
AFL270XXS Series
AFL270XXS Typical Efficiency Characteristics
Presented for three values of Input Voltage.
AFL27005S
AFL27006S
90
90
80
70
60
50
80
160V
160V
270V
70
270V
60
400V
400V
50
0
20
40
60
80
0
20
40
60
80
Output Power ( Watts )
Output Power ( Watts )
AFL27009S
AFL27012S
90
80
70
60
50
95
85
75
65
55
160V
270V
160V
270V
400V
400V
0
20
40
60
80
100
0
20
40
60
80
100
120
Output Power ( Watts )
Output Power ( Watts )
AFL27028S
AFL27015S
90
95
80
70
60
50
85
75
65
55
160V
160V
270V
270V
400V
400V
0
20
40
60
80
100
120
0
20
40
60
80
100
120
Output Power ( Watts )
Output Power ( Watts )
10
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AFL270XXS Series
Typical Performance Characteristics - AFL27005S
Output Load = 100%, Vin = 270VDC unless otherwise specified.
Turn-on Time, No Load
Turn-on Time, Full Load
6
6
5
4
5
4
3
3
2
2
1
1
0
0
-1
-1
70
75
80
85
90
95
100
70
75
80
85
90
95
100
Time from Application of Input Power ( msec )
Time from Application of Input Power ( msec )
Output Ripple Voltage
Input Ripple Current
40
20
0
8
4
0
-20
-40
-4
-8
0
2
4
6
8
10
0
2
4
6
8
10
Time ( usec )
Time ( usec )
Output Load Transient Response
10% Load to/from 50% Load
Output Load Transient Response
50% Load to/from 100% Load
400
200
0
400
200
0
-200
-200
-400
-400
0
200
400
600
Time ( usec )
800
1000
0
200
400
600
Time ( usec )
800
1000
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11
AFL270XXS Series
Typical Performance Characteristics - AFL27015S
Output Load = 100%, Vin = 270VDC unless otherwise specified.
Turn-on Time, No Load
Turn-on Time, Full Load
18
16
14
12
10
8
18
16
14
12
10
8
6
6
4
4
2
2
0
0
-2
-2
50
55
60
65
70
75
80
50
55
60
65
70
75
80
Time from Application of Input Power ( msec )
Time from Application of Input Power ( msec )
Output Ripple Voltage
Input Ripple Current
40
20
0
8
4
0
-20
-40
-4
-8
0
2
4
6
8
10
0
2
4
6
8
10
Time ( usec )
Time ( usec )
Output Load Transient Response
10% Load to/from 50% Load
Output Load Transient Response
50% Load to/from 100% Load
800
800
400
0
400
0
-400
-800
-400
-800
0
200
400
600
Time ( usec )
800
1000
0
200
400
600
Time ( usec )
800
1000
12
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AFL270XXS Series
Typical Performance Characteristics - AFL27028S
Output Load = 100%, Vin = 270VDC unless otherwise specified.
Turn-on Time, Full Load
Turn-on Time, No Load
30
25
20
15
10
5
30
25
20
15
10
5
0
0
-5
-5
60
65
70
75
80
85
90
60
65
70
75
80
85
90
Time from Application of Input Power ( msec )
Time from Application of Input Power ( msec )
Input Ripple Current
Output Ripple Voltage
40
8
4
20
0
0
-20
-40
-4
-8
0
2
4
6
8
10
0
2
4
6
8
10
Time ( usec )
Time ( usec )
Output Load Transient Response
10% Load to/from 50% Load
Output Load Transient Response
50% Load to/from 100% Load
800
400
0
800
400
0
-400
-800
-400
-800
0
200
400
600
Time ( usec )
800
1000
0
200
400
600
Time ( usec )
800
1000
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13
AFL270XXS Series
AFL270XXS to Standard Military Drawing EquivalenceTable
AFL27005S
AFL27006S
AFL27009S
AFL27012S
AFL27015S
AFL27028S
5962-9456901
5962-9553401
5962-9553501
5962-9475301
5962-9457001
5962-9556501
Available Screening Levels and ProcessVariations for AFL270XXS Series.
MIL-STD-883
Method
No
ES
HB
CH
Requirement
Temperature Range
Element Evaluation
Internal Visual
Suffix
Suffix
Suffix
Suffix
-20 to +85°C
-55°C to +125°C
-55°C to +125°C
-55°C to +125°C
MIL-PRF-38534
ü
2017
1010
2001
1015
¬
ü
Cond B
ü
Temperature Cycle
Constant Acceleration
Burn-in
Cond C
Cond C
500g
Cond A
Cond A
48hrs @ 85°C
48hrs @ 125°C
25°C
160hrs @ 125°C
160hrs @ 125°C
Final Electrical (Group A)
MIL-PRF-38534
& Specification
25°C
-55, +25, +125°C -55, +25, +125°C
Seal, Fine & Gross
External Visual
1014
2009
Cond C
Cond A, C
Cond A, C
Cond A, C
¬
ü
ü
ü
* per Commercial Standards
14
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AFL270XXS Series
AFL270XXS Case Outlines
Case X
Case W
Pin Variation of Case Y
3.000
2.760
ø
0.128
0.050
0.050
0.250
0.250
1.000
1.000
Ref
1.260 1.500
0.200 Typ
Non-cum
Pin
ø
0.040
Pin
0.040
0.220
ø
2.500
0.220
0.525
2.800
2.975 max
0.238 max
0.42
0.380
Max
0.380
Max
Case Y
Case Z
Pin Variation of Case Y
1.150
0.300
ø
0.140
0.25 typ
0.050
0.050
0.250
0.250
1.000
Ref
1.500 1.750 2.00
1.000
Ref
0.200 Typ
Non-cum
Pin
ø
0.040
Pin
ø
0.040
0.220
0.220
1.750
2.500
0.375
0.36
2.800
2.975 max
0.525
0.238 max
0.380
Max
0.380
Max
Tolerances, unless otherwise specified: .XX
.XXX
=
=
±0.010
±0.005
BERYLLIA WARNING: These converters are hermetically sealed; however they contain BeO substrates and should not be ground or subjected to any other
operations including exposure to acids, which may produce Beryllium dust or fumes containing Beryllium
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15
AFL270XXS Series
AFL270XXS Pin Designation
Pin No.
Designation
Positive Input
Input Return
Case
1
2
3
4
Enable 1
5
Sync Output
Sync Input
Positive Output
Output Return
Return Sense
Positive Sense
Share
6
7
8
9
10
11
12
Enable 2
Part Numbering
AFL 270 05 S X / CH
Model
Screening
–
,
ES
Input Voltage
270 = 270V
28 = 28V
Case Style
W, X, Y, Z
HB, CH
Output Voltage
05 = 5V, 06 = 6V
09 = 9V, 12 = 12V
15 = 15V, 28 = 28V
Outputs
S = Single
D = Dual
WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, Tel: (310) 322 3331
ADVANCED ANALOG: 2270 Martin Av., Santa Clara, California 95050, Tel: (408) 727-0500
Visit us at www.irf.com for sales contact information.
Data and specifications subject to change without notice. 07/02
16
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