Texas Instruments BQ2573 Series, Руководство пользователя, Страница: 9 / 27

2.4 Procedure
2.4.1 Charge Function
1. Make sure Equipment Setup steps are followed.
2. Set Tgt Address to D6(6B)
3. Write “020A” to charge option 0 register 0x00H.
Measure → V(J1(V
IN
)) = 10 V ±0.5 V
Measure → V(TP28(CHG_OK)) = 3 V to 4.5 V
Measure → V(TP21(REGN)) = 6 V ±1 V
Measure → V(TP22(ILIM_HIZ)) = 2.2 V
4. Write “0400” to charge current 0x02H.
Turn on load #1.
Measure → V(J6(VSYS)) = 8.4 V ±0.5 V
5. Turn on LOAD #2 (VBAT Load).
Measure → V(J5(VBAT)) = 7 V ±0.5 V
Measure → I(J5(VBAT)) = 2 A ±0.5 A
2.4.2 OTG Function
Use the following for OTG function settings:
1. Connect a 7-V power supply to the VBAT load. Remove the V
IN
power supply from J1 (Connection must be
physically removed from board).
2. Write “09C4” to the OTG voltage register.
3. Write “1000” to the OTG current registers.
4. Remove JP2 (Enable OTG/VAP function).
5. Select
EN_OTG in Charge Option 3 .
Measure → V(J1(V
IN
)) = 5 V ±1 V
Figure 2-4. EN_OTG
www.ti.com Test Summary
SLUUCB9A – JUNE 2020 – REVISED JANUARY 2021
Submit Document Feedback
BQ2573X Evaluation Module 9
Copyright © 2021 Texas Instruments Incorporated