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UB2012XG-S08-R Datasheet(PDF) 9 Page - Unisonic Technologies

No. de pieza UB2012XG-S08-R
Descripción Electrónicos  ADVANCED LINEAR CHARGE MANAGEMENT IC FOR SINGLE
PDF  17 Pages
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Fabricante Electrónico  UTC [Unisonic Technologies]
Página de inicio  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UB2012XG-S08-R Datasheet(HTML) 9 Page - Unisonic Technologies

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UB2012
Preliminary
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
9 of 17
www.unisonic.com.tw
QW-R121-018 .b
APPLICATION INFORMATION(Cont.)
CURRENT REGULATION PHASE
When the battery-pack voltage is less than the regulation voltage, VO(REG), the current is regulated by the UTC
UB2012
. This advanced linear charge management IC monitors charge current at the SNS input by the voltage drop
across a sense-resistor, RSNS, in series with the battery pack. In current sensing configuration (Figure 5), RSNS is
between the VCC and SNS pins. Charge-current feedback, applied through pin SNS, maintains a voltage of VSNS
across the current sense resistor. The following formula calculates the value of the sense resistor:
O(REG)
(SNS)
SNS
I
V
R
=
(1)
Where IO(REG) is the desired charging current.



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