MAX20459 datasheet(4/12 Pages) MAXIM

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Evaluates: MAX20459

MAX20459 Evaluation Kit

Initial Setup

Note: In the following sections, software-related items are

identified by bolding. Text in

bold refers to items directly

from the EV kit software. Text in

bold and underlined

refers to items from the Windows operating system.

The EV kit is fully assembled and tested. Follow the steps

below to set up the board for evaluation.

1) MAX20459 GUI is installed on a PC.

2) Verify the EV kit has ATJA variant of MAX20459 for

I2C, and R3/R4 are removed per Table 1.

3) Verify SW1 switch is set to HVEN = ON, ENBUCK =

ON, SYNC = OFF, DCP_MODE = OFF.

4) Using the jumper wires, connect the MINIQUSB to

the EV kit as follows:

•

SCL to SCL

•

SDA to SDA

•

GND to GND

5) Connect the MINIQUSB to the computer and install

driver if necessary.

6) Verify the MINIQUSB is recognized in the

Windows

Device Manager as USB Serial Converter.

7) Set the VBAT power supply to 14V output, 2A current

limit. Turn the output off. Connect the negative lead

to the GND test loop on the EV kit. Connect the posi-

tive lead to VBAT_FLT test loop on the EV kit.

8) Turn the VBAT power supply output on.

9) Plug the USB-C to USB-C cable into the EV kit.

10) Plug the USB-C cable into a USB type-C device that

can charge (i.e. smartphone).

Figure 4. MAX20459 GUI Startup

MAX20459 Datasheet(PDF) 4 Page - Maxim Integrated Products