2

dc2324aabcfa

DEMO MANUAL DC2324A-A,

DC2324A-B, DC2324A-C

Quick start proceDure

Demonstration circuit 2324A is easy to set up to evalu-

ate the performance of the LT3753. Refer to Figure 1 for

proper measurement equipment setup and follow the

procedure below:

1. Set an input power supply that is capable of cover-

ing the input voltage range of the DC2324A (see the

PerformanceSummarytable)tooneofthesevoltages:

48V for the DC2324A-A,

24V for the DC2324A-B,

12V for the DC2324A-C.

Then turn off the supply.

2. With power off, connect the supply to the input ter-

desired, an ammeter with proper rating can be put in

series with the input supply in order to measure the

DC2324A’s input current.

3. Turn on the power at the input.

NOTE:Makesurethattheinputvoltagedoesnotexceed

100V.

4. Check for the proper output voltage of 24V. Turn off

the power at the input.

5. Oncetheproperoutputvoltageisestablished,connect

a variable load capable of sinking 5A at 24V to the

for 0A.

a. If efficiency measurements are desired, an ammeter

withtheoutputloadinordertomeasuretheDC2324A’s

output current.

b. A voltmeter can be placed across the output terminals

in order to get an accurate output voltage measure-

ment.

6. Turn on the power at the input.

NOTE: If there is no output, temporarily disconnect

the load to make sure that the load is not set too high.

7. Once the proper output voltage is again established,

adjust the load within the operating range and observe

theoutputvoltageregulation,ripplevoltage,efficiency

and other desired parameters.

NOTE:Whenmeasuringtheinputoroutputvoltageripples,

care must be taken to avoid a long ground lead on the

oscilloscope probe. Measure the input or output voltage

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Input Supply Range

9

18

V

Output Voltage

21.6

24

26.4

V

Maximum Output Current, Continuous

4

A

Switching (Clock) Frequency

240

kHz

Output Ripple

30

Efficiency (see Figure 4)

94.8

%