Test Procedure
4)Verify that output voltage BAT+ settles between 3.2 V and 3.95 V.
5)Verify that the input current is between 0.69 A and 0.75 A.
6)Open switch SW3.
7)Verify that the input current is between 100 mA and 150 mA.
8)Verify the output voltage BAT+ is between 4.150 VDC and 4.250 VDC.
9)Open switch SW2.
10)Verify with a scope (250 ms/div, 1 V/div) that output BAT+ charges and discharges are between the maximum limits of 3 V and 4.35 V, with a period between 600 ms and 850 ms.
11)Verify that the LEDs flash between RED (D1) and GREEN (D2, mostly on green).
12)Open switch SW4 and verify that D1 and D2 are off and D3 is on.
13)Verify, with a scope on BAT+, a square wave between the maximum limits of 1.3 and 4.35 VDC and a frequency between 3.5 and 4.5 Hz.
14)Close switches SW2, SW3, and SW4 (all switches should be closed now) and power down the supply.
15)The EVM is good if all tests are passed.
Test Summary |
