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LP3921 데이터시트(PDF) 22 Page - Texas Instruments

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부품명 LP3921
상세설명  Battery Charger Management and Regulator Unit
PDF  41 Pages
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI1 - Texas Instruments

LP3921 데이터시트(HTML) 22 Page - Texas Instruments

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4.5V < VCHG_IN < 6.0V
Charger OFF
Zero Current
Pre-Charge mode
50mA Constant current
Full-Rate Charge mode
Constant Current (ICHG)
Full-Rate Charge mode
Constant Voltage (VTERM)
Maintenance mode
Zero current
From any mode:
VCHG_IN < 4.5V
or VCHG_IN > 6.0V
or disabled via serial interface.
Yes
No
Yes
Yes
No
VBATT > 3.0V
VBATT = VTERM
ICHG < EOC
VBATT < VRSTRT
No
No
Yes
Yes
LP3921
SNVS580A – AUGUST 2008 – REVISED MAY 2013
www.ti.com
Figure 6. Simplified Charger Functional State Diagram (EOC is enabled)
The charger operation may be depicted by the following graphical representation of the voltage and current
profiles.
22
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Product Folder Links: LP3921



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