Datasheet

Software

24. Press and hold the “ON/OFF” button on the charger board until the LED’s flash

(about 5 seconds). The board is now in Configuration Mode.

25. Press and release the “CHEM” button until the “Li-Ion” LED is on.

26. Press and release the “# CELLS” button until the “0” display LED is on and the

“1,2,3” display LED’s are off.

27. Press and hold the “# CELLS” button on the charger board until the LED’s flash

(about 5 seconds). The board is now calibrated to use the 4.200V as the Li-Ion

battery voltage.

28. Press the “ON/OFF” button. The charger will exit Configuration mode.

29. Turn off and disconnect the power supply.

30. Reconnect the variable supply (+) lead to the input connector (+) pin J1-1.

31. Reconnect the variable supply (-) lead to the input connector (-) pin J1-2.

32. Connect the Li-Ion battery pack to the charger board J2 connector.

33. Turn on the supply and set the voltage to 8.0V (any voltage between 6V and 12V

is good).

34. Press the “ON/OFF” button. The charger will start charging the battery.

35. Press the “CHEM” button to display the current charger state in HEX. “0” LED is

the LS Bit.

36. Press the “# CELLS” button to display the termination cause. No LED means no

premature termination.

37. Using an oscilloscope, refer to A.2 “Board – Schematic” and A.3 “Board – Top

Silk Layer” and probe the following components:

-V

REF

= TP3

-PWM = TP4

- Oscillator = TP5

-VS

OUT

= TP6

- Slope Compensation = TP7

- Temperature = TP8 (if used)

-FB = TP9

- Drain Voltage = TP10

- Output Voltage = TP11

38. Press the “ON/OFF” button. The charger will stop charging the battery.