Technical Reference Notes

AEH/ALH80 Series

MODEL: AEH/ALH80 SERIES

SHEET 4 OF 17

OCTOBER 9, 2003 - REVISION B

Electrical Specifications (continued)

INPUT SPECIFICATION

Parameter

Device

Symbol

Min

Typ

Max

Unit

Operating Input Voltage

All

36

48

75

Input Under-Voltage Lock-out

T_ON Threshold

T_OFF Threshold

All

34.0

32.5

34.8

33.5

35.5

34.5

Vdc

Maximum Input Current

1

Y (1.8V)

M (1.5V)

K (1.2V)

-

-

-

-

-

-

5.2

4.4

3.6

A

All

-

-

5

W

Input Reflected Ripple Current

2

BW: 5Hz to 20MHz

All

-

-

15

Note:

1. An input line fuse is recommended for use (e.g. Littlefuse type 3AB 314, 8A/250V or equivalent).

2. External input capacitance required. See Input Ripple Current test measurement setup on Fig 1.

OUTPUT SPECIFICATIONS

Parameter

Device

Symbol

Min

Typ

Max

Unit

Output Voltage Set point

1V8 (Y)

1V5 (M)

1V2 (K)

1.770

1.475

1.180

1.800

1.500

1.200

1.830

1.525

1.220

Vdc

Vdc

Vdc

Output Regulation

Temperature: Ta = -40 ºC to

+85ºC

All

1V8 (Y)

All

1V2 (K)

All

-

-

-

-

-

0.3

0.1

0.1

0.3

-

0.6

0.4

0.4

0.7

1.0

%Vo

Ripple and Noise

3

Peak-to-Peak: (5Hz to 20MHz)

All

-

-

50

100

mVp-p

Output Current

4

All

0

-

80

A

External Load Capacitance

Capacitor ESR

All

-

-

4

-

-

50,000

-

µF

m

Ω

Output Current-limit Inception

5

All

83

-

100

A

Over Voltage Protection Range

6

1V8 (Y)

1V5 (M)

1V2 (K)

2.20

1.80

1.44

2.40

1.90

1.50

2.90

2.50

2.10

V

Over Temperature Range

7

(AVG PCB TEMPERATURE)

All

110

-

120

°C

Efficiency

1V8 (Y)

1V5 (M)

1V2 (K)

η

η

η

86.0

84.5

82.0

87.0

85.5

83.0

-

-

-

%

%

%