參數(shù)資料
型號: MP2607DL
廠商: MONOLITHIC POWER SYSTEMS INC
元件分類: 電源管理
英文描述: POWER SUPPLY SUPPORT CKT, QCC14
封裝: 3 X 4 MM, MO-229VEED-5, QFN-14
文件頁數(shù): 6/15頁
文件大?。?/td> 317K
代理商: MP2607DL
MP2607 – LI-ION CHARGER WITH POWER PATH MANAGEMENT
MP2607 Rev. 0.9
www.MonolithicPower.com
14
11/2/2009
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
2009 MPS. All Rights Reserved.
Resistor Choose for NTC Sensor
NTC pin uses a resistor divider from input
source (IN) to sense the ambient temperature.
The two resistors RT1 and RT2 allow the high
temperature limit and low temperature limit to
be programmed independently. In another word,
MP2607 can fit most type of NTC resistor and
different
temperature
operation
range
requirement with the two extra resistors.
RT1 and RT2 values depend on the type of the
NTC resistor:
()
××
=
×
NTCH
NTCL
T2
NTCL
NTCH
T1
T2
NTCL
0.3 R
R
0.12 R
0.42 R
R
0.667
R
/ /R
RNTCH is the value of the NTC resistor at high
temperature
of
the
required
temperature
operation range, and RNTCL is the value of the
NTC resistor at low temperature.
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