Technical Reference Notes

AEH/ALH80 Series

MODEL: AEH/ALH80 SERIES

SHEET 5 OF 17

OCTOBER 9, 2003 - REVISION B

Electrical Specifications (continued)

OUTPUT SPECIFICATIONS

Parameter

Device

Symbol

Min

Typ

Max

Unit

Turn-On Response Time

All

-

-

4

10

ms

Switching Frequency

All

-

360

400

440

KHz

Dynamic Response:

∆I

tolerance

tolerance

All

All

-

-

-

-

-

-

-

-

-

-

0.1

-

-

-

-

-

200

500

200

500

A/

µs

mV

µs

mV

µs

Output Overshoot

at T-on / T-off

Passive Resistive Full Load

All

-

-

0

4

%Vo

Output Enable ON/OFF

Negative Enable ("N" suffix)

Enable Pin voltage for Module ON

Module OFF

N suffix

-

-

-0.7

2.95

-

-

1.2

10.0

V

V

Positive Enable (No suffix)

Enable Pin voltage for Module ON

Module OFF

No suffix

-

-

2.95

-0.7

-

-

10.0

1.2

V

Output Voltage Remote Sensing

8,10

All

-

-

-

10

Output Voltage Trim Range

9,10

All

90

110

Note:

3. See Figure 2 for Ripple and Noise test measurement setup. Output ripple may exceed max limits at high

line condition.

4. Appropriate Thermal Derating applies. See Figures 17 to 22 for the Thermal Derating Curves

5. In an event of an over current condition - the converter will be latched off. Restart is possible either by

cycling the input voltage or toggling the Enable signal for 100ms. Consult factory for Auto restart

option.

6. The OVP mode is latching. The converter will be latched off once the sensed voltage across the output

pins exceeds the threshold limits. Restart is possible by either cycling the input voltage or toggling the

Enable signal for 100ms. For testing purposes, output current should be derated so as not to exceed

maximum output power.

7. Output of the module will be terminated once the operating temp reaches the OTP range. Normal

operation resumes once the temperature falls below the OTP range.

8. 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 9 (+Sense) and Pin 7 (-Sense) should be

connected to Pin 10/11 (+Vout) and Pin 5/6 (Return) respectively at the point where regulation is desired.

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