Use the following
guidelines to set up the equipment:
- Set power supply #1 for 23 V DC, 8 A current limit and then turn off the supply.
- Connect the output of power supply #1 in series with a current meter to J1 (VIN and PGND).
- Connect a voltage meter across J1 (VIN) and J1 (PGND).
- Connect load #1 in series with a current meter to J3 (VBAT and PGND).
- Connect a voltage meter across J5 (VBAT and PGND).
- Set 23 V at KEPCO load output. Limit KEPCO to 6 A. Use load #2 to power EVM from the VOUT output.
- Connect J5 to the EV2400. Connect J5 to the I2C PORT 2 on the EV2400.
- Make sure the jumpers are installed as indicated in IO and Jumper Descriptions.
- Turn on the computer and load #2. Open the bqStudio software.
- Select Charger and click the Next button.
- Select Charger_1_00_BQ25756.bqz on the Select a Target Page.
- After selecting the target device, click Field
View. The main window of BQ25756E EVM software appears.
- Change I2C Address to D4(6A) and click
Read Register.
- Set WATCHDOG and EN_CHG to disabled.
- In 16 Bit Registers, set ICHG_REG to 2000 mA and IPRECHG to 2000 mA.
- Turn on power supply #1,
measure
V(J1(VAC)) = 30 V ±
0.5 V
I(J1(IAC)) = 1.6A
± 0.5 A
V(J3(VBAT)) = 23.5V ± 0.5 V I(J3(IBAT)) = 2 A ± 0.5
A
- Set power supply #1 for V, measure
V(J1(VAC)) = 23 V ± 0.5
V
I(J1(IAC)) = 2.1 A ±
0.5 A
V(J3(VBAT)) = 23.5 V ± 1 V I(J3(IBAT)) = 2 A ± 0.5
A
- Set power supply #1 for 10 V, measure
V(J1(VAC)) = 10 V ± 0.5
V
I(J1(IAC)) = 5.0 A ±
0.5 A
V(J3(VBAT)) = 23.5 V ± 1 V I(J3(IBAT)) = 2 A ± 0.5
A