Technical Reference Notes

ALO25F24

(Single Output 8

MODEL: ALO25F24

SHEET 2 OF 13

AUGUST 23, 2005 - REVISION H

Electrical Specifications

ABSOLUTE MAXIMUM RATINGS

Stresses in excess of the absolute maximum ratings can cause permanent damage to the converter. Functional

operation of the device is converter is not implied at these or any other conditions in excess of those given in the

operational section of the specs. Exposure to absolute maximum ratings for extended period can adversely affect

device reliability.

Parameter

Device

Symbol

Min

Typical

Max

Unit

Input Voltage

Continuous

Transient (100ms)

All

Vin

-

-

-

-

36

50

Vdc

I/O Isolation

(Conditions 50

µA for 5 sec, slew

rate of 1500V/10sec)

Input-to-Output

All

-

-

-

1500

Vdc

Operating Temperature

All

-40

-

85

ºC

Storage Temperature

All

-40

-

125

ºC

Operating Humidity

All

-

10

-

85

%

Max Voltage at Enable Pin

All

-

-

25

Vdc

Max Output Power

All

-

-

82.5

W

INPUT SPECIFICATIONS

Parameter

Device

Symbol

Min

Typical

Max

Unit

Operating Input Voltage Range

All

18

24

36

Vdc

Input Under-Voltage Lock-out

T_ON Threshold

T_OFF Threshold

All

17.2

15.8

-

-

17.95

16.50

Vdc

Input Line Drop Out Time (25

°C)

- within overshoot spec

- within 450mV overshoot

All

All

5

1

-

-

-

-

ms

Max Input Current

1

All

--

6.0

A

All

-

-

4.6

W

Input Ripple Current

2

5Hz to 20MHz

All

-6-

mAp-p

Input Voltage Rise Time

10% to 90% of Vout

All

-

-

1.7

V/ms

Inrush Current

All

-

-

5