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BQ25708 Folha de dados(PDF) 47 Page - Texas Instruments

Nome de Peças BQ25708
Descrição Electrónicos  bq25708 SMBus Multi-Chemistry Battery Buck-Boost Charge Controller With System Power Monitor and Processor Hot Monitor
PDF  77 Pages
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Fabricante Electrônico  TI2 [Texas Instruments]
Página de início  https://www.ti.com
Logo TI2 - Texas Instruments

BQ25708 Folha de dados(HTML) 47 Page - Texas Instruments

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Table 26. Charge Current Register (14h) With 10-mΩ Sense Resistor (SMBus address = 14h) Field
Descriptions
SMBus
BIT
FIELD
TYPE
RESET
DESCRIPTION
7
Charge Current, bit 1
R/W
0b
0 = Adds 0 mA of charger current.
1 = Adds 128 mA of charger current.
6
Charge Current, bit 0
R/W
0b
0 = Adds 0 mA of charger current.
1 = Adds 64 mA of charger current.
5-0
Reserved
R/W
000000b
Not used. Value Ignored.
8.6.3.1
Battery Pre-Charge Current Clamp
During pre-charge, BATFET works in linear mode or LDO mode (default REG0x12[2] = 1). For 2-4 cell battery,
the system is regulated at minimum system voltage in REG0x3E() and the pre-charge current is clamped at 384
mA. For 1 cell battery, the pre-charge to fast charge threshold is 3V, and the pre-charge current is clamped at
384mA. However, the BATFET stays in LDO mode operation till battery voltage is above minimum system
voltage (~3.6V). During battery voltage from 3V to 3.6V, the fast charge current is clamped at 2A.



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