IRF AFL120XXS High reliability hybrid dc/dc converter Datasheet

PD - 94447B
AFL120XXS SERIES
120V 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 temperature range. This series is offered as part of a complete
family of converters providing single and dual output
voltages and operating from nominal +28, +50, +120 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 current sharing circuits assure equal current distribution among the paralleled converters. This
series incorporates 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 converters 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, softstart and load fault protection are provided on all models.
These converters are hermetically packaged in two enclosure variations, utilizing copper core pins to minimize resistive DC losses. Three lead styles are available, each fabricated with Advanced Analog’s rugged
ceramic lead-to-package seal assuring long term
hermeticity in the most harsh environments.
Manufactured in a facility fully qualified to MIL-PRF38534, 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-PRF38534 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 de-
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AFL
Features
n
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n
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n
n
n
n
n
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80 To 160 Volt Input Range
High Power Density - up to 84 W / in3
Up To 120 Watt Output Power
Parallel Operation with Stress and Current
Sharing
Low Profile (0.380") Seam Welded Package
Ceramic Feedthru Copper Core Pins
High Efficiency - to 87%
Full Military Temperature Range
Continuous Short Circuit and Overload
Protection
Remote Sensing Terminals
Primary and Secondary Referenced
Inhibit Functions
Line Rejection > 50 dB - DC to 50KHz
External Synchronization Port
Fault Tolerant Design
Dual Output Versions Available
Standard Military Drawings Available
manding applications. Variations in electrical, mechanical and screening can be accommodated.
Contact Advanced Analog for special requirements.
1
09/10/02
AFL120XXS Series
Specifications
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Soldering Temperature
-0.5V to 180V
300°C for 10 seconds
Case Temperature
Operating
Storage
-55°C to +125°C
-65°C to +135°C
Static Characteristics -55°C < TCASE < +125°C, 80V< VIN < 160V unless otherwise specified.
Group A
Subgroups
Parameter
Test Conditions
Note 6
INPUT VOLTAGE
Min
Nom
Max
Unit
80
120
160
V
5.00
8.00
9.00
12.00
15.00
28.00
5.05
8.08
9.09
12.12
15.15
28.28
V
V
V
V
V
V
5.10
8.16
9.18
12.24
15.30
28.56
V
V
V
V
V
V
16.0
10.0
10.0
9.0
8.0
4.0
A
A
A
A
A
A
80
80
90
108
120
112
W
W
W
W
W
W
VIN = 120 Volts, 100% Load
OUTPUT VOLTAGE
AFL12005S
AFL12008S
AFL12009S
AFL12012S
AFL12015S
AFL12028S
1
1
1
1
1
1
4.95
7.92
8.91
11.88
14.85
27.72
AFL12005S
AFL12008S
AFL12009S
AFL12012S
AFL12015S
AFL12028S
2, 3
2, 3
2, 3
2, 3
2, 3
2, 3
4.90
7.84
8.82
11.76
14.70
27.44
VIN = 80, 120, 160 Volts - Note 6
OUTPUT CURRENT
AFL12005S
AFL12008S
AFL12009S
AFL12012S
AFL12015S
AFL12028S
Note 6
OUTPUT POWER
AFL12005S
AFL12008S
AFL12009S
AFL12012S
AFL12015S
AFL12028S
µfd
MAXIMUM CAPACITIVE LOAD
Note 1
OUTPUT VOLTAGE
TEMPERATURE COEFFICIENT
VIN = 120 Volts, 100% Load - Note 1, 6 -0.015
+0.015
%/°C
No Load, 50% Load, 100% Load
VIN = 80, 120, 160 Volts
-70.0
-20.0
+70.0
+20.0
mV
mV
-1.0
+1.0
%
30
40
40
45
50
100
mVpp
mVpp
mVpp
mVpp
mVpp
mVpp
OUTPUT VOLTAGE REGULATION
AFL12028S
Line
All Others
Line
Load
OUTPUT RIPPLE VOLTAGE
AFL12005S
AFL12008S
AFL12009S
AFL12012S
AFL12015S
AFL12028S
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
VIN = 80, 120, 160 Volts, 100% Load,
BW = 10MHz
10,000
For Notes to Specifications, refer to page 4
2
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AFL120XXS Series
Static Characteristics (Continued)
Parameter
Group A
Subgroups
INPUT CURRENT
No Load
Inhibit 1
Inhibit 2
INPUT RIPPLE CURRENT
AFL12005S
AFL12008S
AFL12009S
AFL12012S
AFL12015S
AFL12028S
1
2, 3
1, 2, 3
1, 2, 3
1,
1,
1,
1,
1,
1,
CURRENT LIMIT POINT
As a percentage of full rated load
LOAD FAULT POWER
DISSIPATION
Overload or Short Circuit
2, 3
2, 3
2, 3
2, 3
2, 3
2, 3
1
2
3
Min
Nom
VIN = 120 Volts
IOUT = 0
Pin 4 Shorted to Pin 2
Pin 12 Shorted to Pin 8
VIN = 120 Volts, 100% Load, BW =
10MHz
VOUT = 90% VNOM , VIN = 120 Volts
Note 5
115
105
125
Max
Unit
30
40
3.0
5.0
mA
mA
mA
mA
60
60
60
60
60
60
mApp
mApp
mApp
mApp
mApp
mApp
125
115
140
%
%
%
32
W
VIN = 120 Volts
1, 2, 3
VIN = 120 Volts, 100% Load
EFFICIENCY
AFL12005S
AFL12008S
AFL12009S
AFL12012S
AFL12015S
AFL12028S
ENABLE INPUTS (Inhibit Function)
Converter Off
Sink Current
Converter On
Sink Current
SWITCHING FREQUENCY
SYNCHRONIZATION INPUT
Frequency Range
Pulse Amplitude, Hi
Pulse Amplitude, Lo
Pulse Rise Time
Pulse Duty Cycle
ISOLATION
Test Conditions
1,
1,
1,
1,
1,
1,
2, 3
2, 3
2, 3
2, 3
2, 3
2, 3
1, 2, 3
1, 2, 3
78
79
80
82
83
82
Logical Low on Pin 4 or Pin 12
Note 1
Logical High on Pin 4 and Pin 12 - Note 9
Note 1
-0.5
2.0
1, 2, 3
500
1, 2, 3
1, 2, 3
1, 2, 3
500
2.0
-0.5
Note 1
Note 1
1
Input to Output or Any Pin to Case
(except Pin 3). Test @ 500VDC
DEVICE WEIGHT
Slight Variations with Case Style
MTBF
MIL-HDBK-217F, AIF @ TC = 70°C
82
83
84
85
87
85
550
20
100
0.8
100
50
100
V
µA
V
µA
600
KHz
700
10
0.8
100
80
KHz
V
V
nSec
%
MΩ
85
300
%
%
%
%
%
%
gms
KHrs
For Notes to Specifications, refer to page 4
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3
AFL120XXS Series
Dynamic Characteristics -55°C < TCASE < +125°C, VIN=120V unless otherwise specified.
Parameter
Group A
Subgroups
AFL12008S
AFL12009S
AFL12012S
AFL12015S
AFL12028S
Min
Nom
Max
Unit
Note 2, 8
LOAD TRANSIENT RESPONSE
AFL12005S
Test Conditions
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 50% ⇔ 100%
-450
450
200
mV
µSec
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 10% ⇔ 50%
-450
450
400
mV
µSec
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 50% ⇔ 100%
-500
500
200
mV
µSec
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 10% ⇔ 50%
-500
500
400
mV
µSec
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 50% ⇔ 100%
-600
600
200
mV
µSec
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 10% ⇔ 50%
-600
600
400
mV
µSec
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 50% ⇔ 100%
-750
750
200
mV
µSec
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 10% ⇔ 50%
-750
750
400
mV
µSec
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 50% ⇔ 100%
-750
750
200
mV
µSec
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 10% ⇔ 50%
-750
750
400
mV
µSec
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 50% ⇔ 100%
-1200
1200
200
mV
µSec
Amplitude
Recovery
4, 5, 6
4, 5, 6
Load Step 10% ⇔ 50%
-1200
1200
400
mV
µSec
-500
500
500
mV
µSec
250
120
mV
mSec
Note 1, 2, 3
LINE TRANSIENT RESPONSE
VIN Step = 80 ⇔ 160 Volts
Amplitude
Recovery
VIN = 30, 50, 80 Volts. Note 4
TURN-ON CHARACTERISTICS
Overshoot
Delay
4, 5, 6
4, 5, 6
Enable 1, 2 on. (Pins 4, 12 high or
open)
LOAD FAULT RECOVERY
Same as Turn On Characteristics.
LINE REJECTION
MIL-STD-461D, CS101, 30Hz to
50KHz
Note 1
50
75
50
60
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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AFL120XXS Series
AFL120XXS Circuit Description
Figure I. AFL Single Output Block Diagram
DC Input 1
Input
Filter
Enable 1 4
Output
Filter
Primary
Bias Supply
7
+Output
10
+Sense
Current
Sense
Sync Output
5
Control
Sync Input 6
FB
Case
Error
Amp
& Ref
3
Share
Amplifier
11 Share
12 Enable 2
Sense
Amplifier
Input Return 2
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
converter to life. A power MOSFET is used to chop the DC
input voltage into a high frequency square wave, applying
this chopped voltage to the power transformer at the nominal converter switching frequency. Maintaining a DC voltage within the specified operating range at the input assures continuous generation of the primary bias voltage.
The switched voltage impressed on the secondary output
transformer winding is rectified and filtered to generate the
converter DC output voltage. An error amplifier on the secondary side compares the output voltage to a precision
reference and generates an error signal proportional to the
difference. 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 signal
driving the MOSFET, narrowing the width if the output voltage is too high and widening it if it is too low, thereby regulating the output voltage.
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-Sense
Output Return
terminals at the converter. Figure III. illustrates a typical
remotely sensed application.
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 isolation
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 converter down.
Figure II. Enable Input Equivalent Circuit
+5.6V
100K
Pin 4 or
Pin 12
1N4148
Disable
290K
Remote Sensing
Connection of the + and - sense leads at a remotely located
load permits compensation for excessive resistance between the converter output and the load when their physical
separation could cause undesirable voltage drop. This connection allows regulation to the placard voltage at the point
of application. When the remote sensing feature is not used,
the sense should be connected to their respective output
9
8
2N3904
150K
Pin 2 or
Pin 8
5
AFL120XXS 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 secondary side while altering the controller duty cycle to near zero.
Externally, the use of either port is transparent to the user
save for minor differences in idle current. (See specification
table).
Synchronization of Multiple Converters
When operating multiple converters, system requirements
often dictate operation of the converters at a common frequency. To accommodate this requirement, the AFL series
converters provide both a synchronization input and output.
The sync input port permits synchronization of an AFL converter to any compatible external frequency source operating 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
highlevel of +2.0 volts. The sync output of another converter which has been designated as the master oscillator
provides a convenient frequency source for this mode of
operation. 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
referenced to the input return and has been tailored to be
compatible 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 converter is not inhibited. This output has adequate drive reserve to synchronize at least five additional converters. A
typical synchronization connection option is illustrated in
Figure III.
Figure III. Preferred Connection for Parallel Operation
Power
Input
1
12
Vin
Enable 2
Rtn
Share
Case
Enable 1
Optional
Synchronization
Connection
AFL
+ Sense
- Sense
Sync Out
Return
Sync In
+ Vout
7
6
Share Bus
1
12
Enable 2
Vin
Share
Rtn
Case
Enable 1
AFL
+ Sense
- Sense
Sync Out
Return
Sync In
+ Vout
to Load
7
6
1
12
Vin
Enable 2
Rtn
Share
Case
Enable 1
AFL
+ Sense
- Sense
Sync Out
Return
Sync In
+ Vout
7
6
(Other Converters)
Parallel Operation-Current and Stress Sharing
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
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 temperature, the current it
provides to the load will be reduced as compensation for
the temperature induced stress on that device.
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AFL120XXS 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 outputs should be connected to the load with equal lengths of
wire of the same gauge and sense leads from each converter 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 outputs and sense pins connected at a star point which is
located close as possible to the load.
As a consequence of the topology utilized in the current
sharing circuit, the share pin may be used for other functions. In applications requiring a single converter, the voltage 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.
Thermal Considerations
Because of the incorporation of many innovative technological 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 effective methods of heat removal from the die junctions. This
requirement has been effectively addressed inside the device; 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 temperature 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.
Because effectiveness of this heat transfer is dependent
on the intimacy of the baseplate/heatsink interface, it is strongly recommended that a high thermal conductivity heat
transferance medium is inserted between the baseplate and heatsink. The material most frequently utilized at the factory during all testing and burn-in processes is sold under
the trade name of Sil-Pad 4001 . This particular pro duct
is an insulator but electrically conductive versions are also
available. Use of these materials assures maximum surface contact with the heat dissipator thereby compensating
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 convenient 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 temperature rise (∆T) above ambient temperature is given by
the following expression:
.
 ∆T −143

− 3.0
A HEAT SINK ≈ 
 80P 0.85 
where
∆T = Case temperature rise above ambient
 1

P = Device dissipation in Watts = POUT 
− 1
 Eff

As an example, it is desired to maintain the case temperature of an AFL27015S at £ +85°C in an area where the
ambient temperature is held at a constant +25°C; then
∆T = 85 - 25 = 60°C
From the Specification Table, the worst case full load efficiency for this device is 83%; therefore the power dissipation at full load is given by

 1
P = 120 • 
− 1 = 120 • ( 0.205) = 24.6 W
 .83 
and the required heat sink area is
.

 −143
60

A HEAT SINK = 
− 3.0 = 71 in 2
 80 • 24.6 0.85 
Thus, a total heat sink surface area (including fins, if any) of
71 in2 in this example, would limit case rise to 60°C above
ambient. A flat aluminum plate, 0.25" thick and of approximate dimension 4" by 9" (36 in2 per side) would suffice for
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.
1Sil-Pad is a registered Trade Mark of Bergquist, Minneapolis, MN
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7
AFL120XXS Series
Input Filter
The AFL120XXS series converters incorporate a LC input
filter whose elements dominate the input load impedance
characteristic at turn-on. The input circuit is as shown in
Figure IV.
Figure IV. Input Filter Circuit
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 solving for the corresponding resistor value.
Figure V. Connection for VOUT Adjustment
Enable 2
16.8uH
Share
Pin 1
R ADJ
AFL120xxS
+ Sense
- Sense
0.78uF
Return
To Load
Pin 2
+ V out
Note: Radj must be set ≥ 500Ω
Undervoltage Lockout
A minimum voltage is required at the input of the converter
to initiate operation. This voltage is set to 74 ± 4 volts. To
preclude the possibility of noise or other variations at the
input falsely initiating and halting converter operation, a hysteresis of approximately 7 volts is incorporated in this circuit. Thus if the input voltage droops to 67 ± 4 volts, the
converter will shut down and remain inoperative until the
input voltage returns to ≈ 74 volts.
Output Voltage 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 determined by use of the following equation.
Attempts to adjust the output voltage to a value greater than
120% of nominal should be avoided because of the potential of exceeding internal component stress ratings and subsequent 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 limits
is assured.
Examination of the equation relating output voltage and resistor value reveals a special benefit of the circuit topology
utilized for remote sensing of output voltage in the
AFL120XXS 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 limiting value of output voltage as the adjusting resistor becomes very large is ≈ 25mV above nominal device voltage.
The consequence is that if the +sense connection is unintentionally broken, an AFL120XXS 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.


VNOM

Radj = 100 • 
VOUT - VNOM -.025 
Where VNOM = device nominal output voltage, and
VOUT = desired output voltage
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AFL120XXS Series
General Application Information
Table 1. Nominal Resistance of Cu Wire
The AFL120XXS series of converters are capable of providing large transient currents to user loads on demand.
Because the nominal input voltage range in this series is
relatively low, the resulting input current demands will be
correspondingly large. It is important therefore, that the line
impedance be kept very low to prevent steady state and
transient input currents from degrading the supply voltage
between the voltage source and the converter input. In
applications requiring high static currents and large transients, it is recommended that the input leads be made of
adequate size to minimize resistive losses, and that a good
quality capacitor of approximately100mfd be connected
directly across the input terminals to assure an adequately
low impedance at the input terminals. Table I relates nominal resistance values and selected wire sizes.
Wire Size, AWG
Resistance per ft
24 Ga
25.7 mΩ
22 Ga
16.2 mΩ
20 Ga
10.1 mΩ
18 Ga
6.4 mΩ
16 Ga
4.0 mΩ
14 Ga
2.5 mΩ
12 Ga
1.6 mΩ
Incorporation of a 100 µfd capacitor at the input terminals
is recommended as compensation for the dynamic effects of the parasitic resistance of the input cable reacting
with the complex impedance of the converter input, and to
provide an energy reservoir for transient input current
requirements.
Figure VI. Problems of Parasitic Resistance in input Leads
(See text)
Rp
I in
Vin
100
µfd
e source
Rp
I Rtn
e Rtn
Rtn
Case
System Ground
Enable 1
Sync Out
Sync In
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9
AFL120XXS Series
AFL120XXS Case Outlines
Case X
Case W
Pin Variation of Case Y
3.000
ø 0.128
2.760
0.050
0.050
1
12
0.250
0.250
1.260 1.500
0.200 Typ
Non-cum
6
7
1.000
Ref
1.000
Pin
ø 0.040
Pin
ø 0.040
0.220
2.500
0.220
2.800
2.975 max
0.525
0.238 max
0.42
0.380
Max
0.380
Max
Case Y
Case Z
Pin Variation of Case Y
0.300
1.150
ø 0.140
0.25 typ
0.050
0.050
1
12
0.250
0.250
1.500 1.750 2.00
1.000
Ref
0.200 Typ
Non-cum
6
7
1.000
Ref
Pin
ø 0.040
Pin
ø 0.040
1.750
0.375
0.220
0.220
0.36
2.500
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
10
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AFL120XXS Series
Available Screening Levels and Process Variations for AFL120XXS Series.
MIL-STD-883
Method
Requirement
Temperature Range
No
Suffix
ES
Suffix
HB
Suffix
CH
Suffix
-20°C to +85°C
-55°C to +125°C
-55°C to +125°C
-55°C to +125°C
Element Evaluation
MIL-H-38534
¬
ü
ü
ü
Cond B
Cond C
Cond C
Internal Visual
2017
Temperature Cycle
1010
Constant Acceleration
2001,
500g
Cond A
Cond A
Burn-in
1015
48hrs @ 85°C
48hrs @ 125°C
160hrs @ 125°C
160hrs @ 125°C
MIL-PRF-38534
25°C
25°C
-55, +25, +125°C
-55, +25, +125°C
Seal, Fine & Gross
1014
Cond A
Cond A, C
Cond A, C
Cond A, C
External Visual
2009
¬
ü
ü
ü
Final Electrical (Group A)
* per Commercial Standards
Part Numbering
AFL120XXS Pin Designation
Pin No.
Designation
1
Positive Input
2
Input Return
3
Case
4
Enable 1
5
Sync Output
6
Sync Input
7
Positive Output
8
Output Return
9
Return Sense
10
Positive Sense
11
Share
12
Enable 2
AFL120 05 S X / CH
Model
Input Voltage
28= 28 V, 50= 50 V
120=120 V, 270= 270 V
Output Voltage
3R3= 3.3 V, 05= 5 V
08= 8 V, 09= 9 V
12= 12 V, 15= 15 V
24= 24 V, 28= 28 V
Screening
Case Style
– , ES
HB, CH
W, X, Y, Z
Outputs
S = Single
D = Dual
AFL120XXS to Standard Military Drawing Equivalence Table
AFL12005S
5962-9960801
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. 09/02
www.irf.com
11
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