Agilent Technologies E4370A, E4371A, E4375A

5 - Programming Overview

FAIL

Go to NEXT step

Remove cell from

sequence

Test action?

Test outcome?

Start STEP

Continue in step

FALSE

TRUE

Figure 5-1. Test Outcome Flowchart

Cell Forming Example

The following table documents a sequence consisting of four steps. Figure 5-2 illustrates how three of the

cells behave as the sequence is running. Each step in the sequence is performed on all cells

simultaneously. Sequence steps and actions are as follows. Refer to Chapter 7 for the C programming

code for this example. The examples given here will work with both Agilent E4374A and E4375A cards.

Function Step Step Action/

Test Type

Voltage Current Time Test Outcome

Set Seq Step 1 Charge at 4.2 V 0.295 A For 20 min.

Set Seq Test 1Voltage ≥3.8 V Before 5 min. Fail (cell removed

from sequence)

Set Seq Test 1Current ≤0.02 A After 5 min. Next (cell goes to

step 2, rest)

Set Seq Step 2 Rest For 10 min.

Set Seq Step 3 Discharge at 3.0 V 0.295 A For 15 min.

Set Seq Test 3Voltage ≤3.0 V Before 5 min. Fail (cell removed

from sequence)

Set Seq Test 3Voltage ≤3.0 V After 5 min. Next (cell goes to

step 4, rest)

Set Seq Test 3Voltage ≥3.0 V At 15 min. Fail (cell removed

from sequence)

Set Seq Step 4 Rest For 5 min.