10/11/11

www.irf.com

1

HIGH RELIABILITY

HYBRID DC-DC CONVERTERS

ASAP SERIES

Description

n Up To 6.0 Watt Output Power

n Availabe in Single and Dual Output Configurations

Single Outputs: 5V, 12V and 15V

Dual Outputs:

± 5V, ± 12V and ± 15V

n High Reliability

n Wide Input Voltage Range, 15 To 50 Volts

n Indefinite Short Circuit and Overload Protection

n Popular Industry Standard Pin-Out

n Military Screening Available

n Parallel Seam Welded Package

n No External Capacitors Required

n Input Voltage Surge Protected to MIL-STD-704A

80V, 1 second

n Under Voltage Lockout

Features

ASAP

28V Input, Single and Dual Output

The ASAP Series of DC-DC converters are high

reliability thick film hybrid converters that use flyback

topology operating at a nominal frequency of 550KHz.

High input to output isolation is achieved through the

use of transformers in the flyback power and feedback

circuits.

The advanced feedback design provides fast loop

response for superior line and load transient

characteristics and offers greater reliability than devices

incorporating optical feedback circuits.

This device is designed to meet MIL-STD-704D input

requirements offering full performance over a wide 15

to 50 volt input range and output power of up to 6.0 watts.

Connecting the inhibit pin (pin 5) to the input common

(pin 7) will cause the converter to shut down. It is

recommended that the inhibit pin be driven by an open

collector device capable of sinking at least 400

µA. The

open circuit voltage of the inhibit pin is 11.5 ±0.5 volts.

These converters are manufactured in a facility fully

qualified to MIL-PRF-38534. All processes used to

manufacture these converters have been qualified

thereby enabling International Rectifier to deliver fully

compliant devices. Four standard temperature grades

are offered with the screening options. Refer to

Screening Level section. The CH grade converters

are fully compliant to MIL-PRF-38534 for class H. The

HB grade converters are processed with the same

screening as the CH grade, but do not have class H

element evaluation as required by MIL-PRF-38534.

These two grades are fully tested and operate over the

full military temperature range without derating of output

power. A commercial grade is also available.

Variations in electrical, mechanical and screening

requirements can be accommodated. Extensive

design modifications to be examined. Contact IR San

Jose with specific requirements.

PD-97731