Technical Reference Notes

ALQ40/50 Series

(Open Frame Single Output Quarter Brick)

MODEL: ALQ50 SERIES

SHEET 16 OF 16

APRIL 21, 2003 - REVISION A (PRELIMINARY)

SOLDERING CONSIDERATIONS

The ALQ50 series converters are compatible with standard wave soldering techniques. When wave soldering, the

converter pins should be preheated for 20-30 seconds at 110

°C and wave soldered at 260°C for less than 10 seconds.

When hand soldering, the iron temperature should be maintained at 425

°C and applied to the converter pins for less

than 5 seconds. Longer exposure can cause internal damage to the converter. Cleaning can be performed with cleaning

solvent IPA or with water.

PART NUMBERING SCHEME FOR ORDERING

OUTPUT

VOLTAGE

ENABLE LOGIC

ALQ40 / 50

x

48

y

F = 3.3V

N

= Negative Enable

G = 2.5V

“Blank” = Positive Enable (Default)

Y = 1.8V

K = 1.2V

Please call 1-888-41-ASTEC for further inquiries