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MP2661 bảng dữ liệu(PDF) 21 Page - Monolithic Power Systems

tên linh kiện MP2661
Giải thích chi tiết về linh kiện  4.65V System, 500mA,I2C-Controlled Battery Charger with Power Path Management for Single-Cell Li-Ion Battery
PDF  35 Pages
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nhà sản xuất  MPS [Monolithic Power Systems]
Trang chủ  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2661 bảng dữ liệu(HTML) 21 Page - Monolithic Power Systems

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MP2661 – 0.5A, 1-CELL CHARGER W/ I2C CONTROL AND POWER PATH
MP2661 Rev. 1.03
www.MonolithicPower.com
21
4/9/2018
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2018MPS. All Rights Reserved.
Int_gate
Int_gate
_delay
INT
Int_ext
Vin
Power
on
0V
5V
600ns
Vth
t
t
t
t
t
t
Int_dly
Figure 6: INT signal during Vin powers on
If FET_DIS is set to 1 during the shipping mode,
the IC could still wake up after INT keeping low
for 4s. But in this case, the FET_DIS bit can not
be reset to 0 automatically, it has to be reset to
0 manually through I2C.
2). Reset Mode
The IC can use INT to cut off the path from the
battery to the system when system reset is
needed.
Once the logic at INT is set to low for more than
16s, the battery is disconnected from the
system by turning off the battery MOSFET.
The off state lasts for 4s, then the battery
MOSFET is turned on automatically, and the
system is powered by the battery again. During
the 4s off period, INT pin voltage level could be
high or low. The IC can reset the system by
controlling INT (see Figure 7).
Figure 7: System Reset Function Operation
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