Texas Instruments BQ25710EVM-017, Руководство пользователя

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Test Summary
9 SLUUBT8A – June 2018 – Revised July 2018
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BQ2571x Evaluation Module
2.4 Procedure
2.4.1 Charge Function
1. Make sure Equipment Setup steps are followed.
2. Set Tgt Address to 12(9) for BQ25710 or D6(6B) for BQ25713
3. Write “020E” to charge option 0 register 0x12H (BQ25710) or 0x00H (BQ25713).
Measure → V(J1(V
IN
)) = 10 V ±0.5 V
Measure → V(TP28(CHRG_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 “0800” to charge current 0x14H (BQ25710) or 0x02H (BQ25713). Turn on load #1.
Measure
→
V(J6(SYS)) = 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 V
2.4.2 OTG Function
Use the following for OTG function settings:
1. Set EN_OTG high on J2 (EN_OTG) or short TP37 to TP35 (EN_OTG).
2. 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).
3. Write the Charge Voltage Register to 0x20D0.
4. Write “0200” to the OTG voltage register. Write “4000” to the OTG current registers.
5. Select EN_OTG in Charge Option 3 .
Measure
→
V(J1(V
IN
)) = 5 V ±1 V
Figure 4. EN_OTG