MAX20095 datasheet(3/13 Pages) MAXIM

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Evaluate: MAX20094/MAX20095

MAX20094/MAX20095 Evaluation Kits/

MAX20094/MAX20095 Evaluation Systems

Procedure for the State-of-Health (SOH)

To quickly test the SOH functionality, power supplies are

used instead of actual batteries:

1) Preset PS1 to 14V, then disable the supply. Connect

the positive and negative terminals to MBATT1 and

the neighboring GND test pads, respectively, and turn

on the supply.

2) Preset PS2 to 4V, then disable the supply. Connect

the positive and negative terminals to VSUP1 and the

neighboring GND test pads, respectively, and turn on

the supply.

3) Preset PS3 to 3.2V, then disable the supply.

4) Set the DMM to measure current. Connect the

positive terminal of PS3 to the DMM’s COM, and then

connect the positive side of the DMM to the BBAT+

test pad. Close the current path by connecting the

neighboring GND test pad to the supply’s negative

terminal, then turn on PS3.

5) Start the EV kit software on the PC and click the

splash screen to bring up the main window.

6) Check

SOH_EN in the GUI (Figure 1) to enable the

SOH function.

7) Verify that the MAX20094/MAX20095 current through

the DMM is approximately -500mA, flowing from the

supply to the board.

Procedure for the Boost Controller

To quickly test the boost-controller functionality, power

supplies are used instead of actual batteries:

1) Preset PS1 to 14V, then disable the supply. Connect

the positive and negative terminals to MBATT1 and

the neighboring GND test pads, respectively, and turn

on the supply.

2) Preset PS2 to 4V, then disable the supply. Connect

the positive and negative terminals to VSUP1 and the

neighboring GND test pads, respectively, and turn on

the supply.

3) Preset PS3 to 3.2V, then disable the supply. Connect

the positive and negative terminals to BBAT+ and the

neighboring GND test pads, respectively, and turn on

the supply.

4) Connect an electronic load’s positive and negative

terminals to MBATT2 and the neighboring GND test

pads, respectively. Set the load to 100mA.

5) Start the EV kit software on the PC and click the

splash screen to bring up the main window.

6) Check

BST_EN in the GUI to enable the boost

controller.

7) Lower PS1 from 14V to 0V.

8) Verify that MBATT2 voltage is approximately 6.2V on

the MAX20094 EV kit and 9V on the MAX20095 EV kit.

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