Technical Reference Notes

ALQ40/50 Series

(Open Frame Single Output Quarter Brick)

MODEL: ALQ50 SERIES

SHEET 6 OF 16

APRIL 21, 2003 - REVISION A (PRELIMINARY)

Electrical Specifications (continued)

FEATURE SPECIFICATION

Parameter

Device

Symbol

Min

Typ

Max

Unit

Output Enable ON/OFF

10

Negative Enable ("N" suffix)

Enable Pin voltage for Module ON

Module OFF

N

suffix

-

-

0

2.95

-

-

1.2

20.0

V

V

Positive Enable (No suffix)

Enable Pin voltage for Module ON

Module OFF

No

suffix

-

-

2.95

0

-

-

20.0

1.2

V

Output Voltage Remote Sensing

11,13

All

-

-

-

10

Output Voltage Trim Range

12,13

All

90

110

Note:

10. See Appendix A.3 for the recommended/ appropriate Module Enable configuration.

11. The sense pins can be used to compensate for any voltage drops (per indicated max limits) that may

occur along the connection between the output pins to the load. Pin 7 (+Sense) and Pin 5

(-Sense) should be connected to Pin 8 (+Vout) and Pin 4 (Return) respectively at the point where

regulation is desired.

12. Refer to Equation (1) and (2) and Figures 3 and 4 for the Output Trim Adjust configuration.

ISOLATION SPECIFICATION

Parameter

Device

Symbol

Min

Typ

Max

Unit

Isolation Capacitance

All

-

-

2.70

-

nF

Isolation Resistance

All

-

10

-

-

M

Ω

SAFETY APPROVAL

The ALQ50 series have been certified through:

•

UL + cUL 60950, Third Edition - Recognized (PENDING)

•

EN 60950 through TUV-PS (PENDING)\

•

Basic Insulation