4

dc2374afa

DEMO MANUAL DC2374A

24V SUPPLY QUICK START PROCEDURE

The DC2374A is easy to set up to evaluate the performance

of the LTC4013. Refer to Figure 1 and Figure 2 for proper

measurement equipment setup.

NOTE: When measuring the input or output voltage ripple,

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

oscilloscope probe. Measure the input or output voltage

probe technique.

1. Set the DC2374A to operate in a three stage lead acid

battery charging mode by positioning the jumpers as

listed below:

JP1

ENABLE - UVLO

JP2

MPPT - OFF

JP3

MODE2 – LO

JP4

MODE1 – HI

JP5

NTC – INT

JP6

TIMER – CAP

JP7

PULL_UP PWR - DCIN

2. With power off, connect a 0V to 16V, 6A power supply

(PS2) to BAT and GND terminals with a series ammeter

and a voltmeter as shown in Figure 1.

3. With power off, connect a 5.1A load (LOAD1) to BAT

and GND terminals in parallel with PS2 as shown in

Figure 1.

4. Set PS2 to 10V and turn on PS2 and LOAD1.

5. With power off, connect a 0V to 35V, 5A power supply

(PS1) to DCIN and GND terminals with a series am-

meter and a voltmeter as shown in Figure 1.

CHARGING OPTIONS

Table 1. LTC4013 Charging Algorithm Selection

MODE1

MODE2

TIMER

Charging Mode

Recharge

TERMINATION

EQ Timeout

L

L

0V

2 Stage

13.6

-

-

-

None

None

L

L

CAP

2 Stage

13.6

-

-

-

3.33hrs

None

L

M

0V

2 Stage

14

-

-

-

None

None

L

M

CAP

2 Stage

14

-

-

-

3.33hrs

None

L

H

0V

N/A, Do Not Use

-

-

-

-

-

-

L

H

CAP

4 Stage

13.6

14.2

15

-

3.33hrs

50min

M

L

0V

3 Stage

13.2

14.4

-

-

C/10 (~14.1V)

None

M

L

CAP

3 Stage

13.2

14.4

-

-

3.33hrs

None

M

M

0V

Li-Ion

14.4

-

-

95.8%

(13.77V)

C/10 (~14.3V)

None

M

M

CAP

Li-Ion

14.4

-

-

95.8%

(13.77V)

3.33hrs

None

M

H

0V

N/A, Do Not Use

-

-

-

-

-

-

M

H

CAP

4 Stage

13.2

14.4

15.6

-

3.33hrs

25min

H

L

0V

3 Stage

13.6

14.2

-

-

C/10 (~14.1V)

None

H

L

CAP

3 Stage

13.6

14.2

-

-

3.33hrs

None

H

M

0V

Li-Ion

14.2

-

-

97.1

(13.77V)

C/10 (~14.1V)

None

H

M

CAP

Li-Ion

14.2

-

-

97.1

(13.77V)

3.33hrs

None

H

H

0V

N/A, Do Not Use

-

-

-

-

-

-

H

H

CAP

4 Stage

13.6

14.2

15

-

3.33hrs

25min