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International Rectifier Electronic Components Datasheet



AFL12003R3S

HYBRID-HIGH RELIABILITY DC/DC CONVERTER


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AFL12003R3S pdf
HYBRID-HIGH RELIABILITY
DC/DC CONVERTER
PD - 94448E
AFL12003R3S
120V Input, 3.3V Output
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 +28V or +270V inputs with output
power ranging from 66W to 120W. 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 International Rectifier’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 550KHz. Multiple
converters can be synchronized to a system clock in the
500KHz to 700KHz range or to the synchronization output of
one converter. Under voltage lockout, primary and secondary
referenced inhibit, soft start 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 International Rectifier’s rugged ceramic lead-
to-package seal assuring long term hermeticity in the most
harsh environments.
AFL
Features
n 80V To 160V Input Range
n
n
3.3V Output
High Power Density - 46W/in3
n 66W Output Power
n Parallel Operation with Stress and Current
Sharing
n Low Profile (0.380") Seam Welded Package
n Ceramic Feed thru Copper Core Pins
n High Efficiency - to 74%
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 > 50dB - DC to 50KHz
n External Synchronization Port
n Fault Tolerant Design
n Dual Output Versions Available
n Standard Microcircuit Drawing Available
Manufactured in a facility fully qualified to MIL-PRF-38534,
these converters are fabricated utilizing DSCC qualified
processes. For available screening options, refer to device
screening table in the data sheet. Variations in electrical,
mechanical and screening can be accommodated. Contact
IR Santa Clara for special requirements.
www.irf.com
1
12/12/06
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AFL12003R3S pdf
AFL12003R3S
Specifications
Absolute Maximum Ratings
Input voltage
Soldering temperature
Operating case temperature
Storage case temperature
-0.5V to +180VDC
300°C for 10 seconds
-55°C to +125°C
-65°C to +135°C
Electrical Performance Characteristics -55°C < TCASE < +125°C, 80V< VIN < 160V unless otherwise specified.
Parameter
Group A
Subgroups
Test Conditions
Min Nom Max
Unit
INPUT VOLTAGE
OUTPUT VOLTAGE
Note 6
VIN = 120 Volts, 100% Load
1
2, 3
80
3.27
3.23
120
3.30
160
3.33
3.37
V
V
OUTPUT CURRENT
VIN = 80, 120, 160 Volts, Note 6
20 A
OUTPUT POWER
Note 6
66 W
MAXIMUM CAPACITIVE LOAD
4 Note 1
10,000
µF
OUTPUT VOLTAGE
TEMPERATURE COEFFICIENT
VIN = 120 Volts, 100% Load - Note
1, 6
-0.015
+0.015
%/°C
OUTPUT VOLTAGE REGULATION
Line
Load
1, 2, 3
1, 2, 3
No Load, 50% Load, 100% Load
VIN = 80, 120, 160 Volts
-10.0
-35.0
+10.0
+35.0
mV
OUTPUT RIPPLE VOLTAGE
INPUT CURRENT
No Load
Inhibit 1
Inhibit 2
1, 2, 3
1
2, 3
1, 2, 3
1, 2, 3
VIN = 80, 120, 160 Volts, 100%
Load,
BW = 10MHz
VIN = 120 Volts
IOUT = 0
Pin 4 Shorted to Pin 2
Pin 12 Shorted to Pin 8
30 mVpp
30
40 mA
3.0
5.0
INPUT RIPPLE CURRENT
CURRENT LIMIT POINT
Expressed as a Percentage
of Full Rated Load
1, 2, 3
1
2
3
VIN = 120 Volts, 100% Load
B.W. = 10MHz
VOUT = 90% VNOM
Note 5
115
105
125
60 mApp
125
115 %
140
LOAD FAULT POWER DISSIPATION
Overload or Short Circuit
1, 2, 3
VIN = 120 Volts
32 W
EFFICIENCY
1, 2, 3
VIN = 120 Volts, 100% Load
72 74
%
SWITCHING FREQUENCY
1, 2, 3
500 550 600 KHz
ISOLATION
1
Input to Output or Any Pin to Case
100
(except Pin 3). Test @ 500VDC
M
MTBF
MIL-HDBK-217F, AIF @ TC = 40°C
300
KHrs
For Notes to Specifications, refer to page 3
2 www.irf.com
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Part Number AFL12003R3S
Description HYBRID-HIGH RELIABILITY DC/DC CONVERTER
Maker International Rectifier - International Rectifier
Total Page 10 Pages
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