Document
PD-94447D
HYBRID-HIGH RELIABILITY DC/DC CONVERTER
AFL120XXS SERIES
120V Input, Single 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, +50V, +120V or +270 V inputs with output power ranging from 80W 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. Undervoltage 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
5, 7.5, 8, 9, 12, 15 and 28V Outputs Available High Power Density - up to 84W/in3
n Up To 120W 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 > 50dB - DC to 50KHz
n External Synchronization Port
n Fault Tolerant Design
n Dual Output Versions Available
n Standard Microcircuit Drawings Available
Manufactured in a facility fully qualified to MIL-PRF38534, 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
04/30/07
AFL120XXS Series
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
Static Characteristics -55°C < TCASE < +125°C, 80V< VIN < 160V unless otherwise specified.
Parameter
Group A Subgroups
Test Conditions
Min Nom Max
INPUT VOLTAGE
Note 6
OUTPUT VOLTAGE
VIN = 120 Volts, 100% Load
AFL12005S
1
AFL12007R5S
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AFL12.