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5

HTA-SERIES

Fig I. Circuit for Measuring Output Ripple Voltage

+ Vout

Return

DUT

R

0.1 µF

50

Ω Coax

50

Ω

Oscilliscope or Equivalent

with 10 MHz Bandwidth.

Multiply readings by 2.

1 µF

50

Ω

Termination

1.

Parameter is tested as part of design characterization or after design changes. Thereafter, parameter shall be

guaranteed to the limits specified.

2.

Parameter verified during line and load regulation tests.

3.

Output load current must be distributed such that at least 20% of the total load current is being provided by one

of the outputs.

4.

Load current split equally between outputs on dual output models.

5.

Cross regulation is measured with 20% rated load on output under test while changing the load on the other

output from 20% to 80% of rated.

6.

Guaranteed for a D.C. to 20MHz bandwidth. Tested using a 20KHz to 10MHz bandwidth using the circuit on

page 6.

7.

Capacitive load may be any value from 0 to the maximum limit without compromising dc performance. A

capacitive load in excess of the maximum limit may interfere with the proper operation of the converter’s

overload protection, causing erratic behavior during turn-on.

8.

Overload power dissipation is defined as the device power dissipation with the load set such that V

nominal.

9.

Turn-on delay time from either a step application of input power or a logic low to a logic high transition on the

inhibit pin (pin 4) to the point where V

10.

Transient recovery time is from the change in load condition until the output is within 3% of the nominal output

voltage.

11.

Recovery time is measured from initiation of the transient to where V

50% load.

12.

Load transient time

≥ 10µs.