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ACT2861 Datasheet(PDF) 49 Page - Qorvo, Inc

Part # ACT2861
Description  30V Buck-Boost Charger with Integrated MOSFETs and OTG
PDF  97 Pages
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Manufacturer  QORVO [Qorvo, Inc]
Direct Link  https://www.qorvo.com/
Logo QORVO - Qorvo, Inc

ACT2861 Datasheet(HTML) 49 Page - Qorvo, Inc

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Data Sheet Rev. F, April 2022 | Subject to change without notice
49 of 97
www.qorvo.com
© 2020 Qorvo US, Inc. All rights reserved. Confidential
ACT2861
30V Buck-Boost Charger with Integrated MOSFETs and OTG
®
Table 15: klim Values
IC Operating
Mode
OTG_BAT_ILIM
(register 0x10h)
klim
Charge
n/a
1
OTG
00
disabled
01
1.5
10
2.0
11
1.5
Below are two example ADC reads.
1. Charge mode. Battery voltage = 7.4V
Read CH2 to measure the battery voltage. This reading
results in the ADC_OUT[13:2] bits = 0x9E9h, which
converts to 2537 decimal.
������������������������������������������������=0.01527∗(2537−2048)=7.46������������
2. OTG mode. OTG input current (from the battery) =
2.0A. Assume RCS_OUT = 0.01ohm and ROLIM =
33.1kohm. Also assume the OTG_BAT_ILIM register =
10 to set klim to 2.0.
Read CH3 to measure the battery current. This reading
results in the ADC_OUT[13:2] = 0x9A4h, which con-
verts to 2468 decimal.
������������������������������������������������=������������������������������������������������∗0.7633∗(2468−2048)
0.01∗33100 =1.937������������



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