參數(shù)資料
型號(hào)： LTC4008EGN#TRPBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 穩(wěn)壓器
英文描述： 4A, High Efficiency, Multi-Chemistry Battery Charger; Package: SSOP; No of Pins: 20; Temperature Range: -40°C to +125°C
中文描述： BATTERY CHARGE CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO20
封裝： 0.150 INCH, LEAD FREE, PLASTIC, SSOP-20
文件頁(yè)數(shù)： 11/24頁(yè)
文件大?。?/td> 221K
代理商： LTC4008EGN#TRPBF
LTC4008
19
4008fb
APPLICATIONS INFORMATION
Disabling the Thermistor Function
If the thermistor is not needed, connecting a resistor be-
tween DCIN and NTC will disable it. The resistor should be
sized to provide at least 10μA with the minimum voltage
applied to DCIN and 10V at NTC. Do not exceed 30μA.
Generally, a 301k resistor will work for DCIN less than
15V. A 499k resistor is recommended for DCIN between
15V and 24V.
Using the LTC4008-1 (Refer to Figure 10)
The LTC4008-1 is intended for applications where the
battery power is fully isolated from the charger and wall
adapter connections. An example application is a system
with multiple batteries such that the charger’s output power
passes through a downstream power path or selector
system. Typically these systems also provide isolation
and control the wall adapter power. To reduce cost in such
systems, the LTC4008-1 removes the requirement for the
wall adapter INFET function or blocking diode. Wall adapter
or ACP detection is also removed along with micropower
shutdown mode. Asserting of the SHDN pin only puts the
charger into standby mode. Failure to isolate the battery
power from ANY of the LTC4008-1 pins when wall adapter
power is removed or lost will only drain the battery at the
IC quiescent current rate. More specically, high current
is drawn from the DCIN, CLP and CLN pins. Suggested
devices to isolate power from the charger include simple
diodes, electrical or mechanical switches or power path
control devices such as the LTC4412 low loss PowerPath
controller.
Because the switcher operation is continuous under nearly
all conditions, precautions must be taken to prevent the
charger from boosting the input voltage above maximum
voltage values on the input capacitors or adapter. Z1 and
Q3 will shut down the charger if the input voltage exceeds
a safe value.
相關(guān)PDF資料
PDF描述
LTC4008EGN-1#PBF 4A, High Efficiency, Multi-Chemistry Battery Charger; Package: SSOP; No of Pins: 20; Temperature Range: -40°C to +125°C
LTC4008EGN-1#TRPBF 4A, High Efficiency, Multi-Chemistry Battery Charger; Package: SSOP; No of Pins: 20; Temperature Range: -40°C to +125°C
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相關(guān)代理商/技術(shù)參數(shù)
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LTC4009 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Voltage High Current Controller for Battery Charging and Power Management
LTC4009-1 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Effi ciency, Multi-Chemistry Battery Charger
LTC4009-2 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Effi ciency, Multi-Chemistry Battery Charger
LTC4009CUF#PBF 功能描述:IC CHARGER BATTERY MC 20-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 其它有關(guān)文件:STC3100 View All Specifications 特色產(chǎn)品:STC3100 - Battery Monitor IC 標(biāo)準(zhǔn)包裝:4,000 系列:- 功能:燃料，電量檢測(cè)計(jì)/監(jiān)控器 電池化學(xué):鋰離子（Li-Ion） 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-MiniSO 包裝:帶卷 (TR) 其它名稱:497-10526-2
LTC4009CUF#TRPBF 功能描述:IC CHARGER BATTERY MC 20-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:61 系列:- 功能:電源管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:4.35 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:22-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤 包裝:管件
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