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參數(shù)資料
| 型號： | LTC4011EFE#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | BATTERY CHARGE CONTROLLER, 615 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封裝： | 4.40 MM, PLASTIC, TSSOP-20 |
| 文件頁數(shù)： | 21/24頁 |
| 文件大?。?/td> | 228K |
| 代理商： | LTC4011EFE#PBF |
6
LTC4011
4011p
UU
U
PI FU CTIO S
DCIN (Pin 1): DC Power Sense Input. The LTC4011 senses
voltage on this pin to determine when an external DC
power source is present. This input should be isolated
from VCC by a blocking diode or PowerPath FET. Refer to
the Applications Information section for complete details.
Operating voltage range is GND to 34V.
FAULT (Pin 2): Active-Low Fault Indicator Output. The
LTC4011 indicates various battery and internal fault con-
ditions by connecting this pin to GND. Refer to the Opera-
tion and Applications Information sections for further
details. This output is capable of driving an LED and should
be left floating if not used. FAULT is an open-drain output
to GND with an operating voltage range of GND to VCC.
CHRG (Pin 3): Active-Low Charge Indicator Output. The
LTC4011 indicates it is providing charge to the battery by
connecting this pin to GND. Refer to the Operation and
Applications Information sections for further details. This
output is capable of driving an LED and should be left
floating if not used. CHRG is an open-drain output to GND
with an operating voltage range of GND to VCC.
CHEM (Pin 4): Battery Chemistry Selection Input. This pin
should be wired to GND to select NiMH fast charge
termination parameters. If a voltage greater than 2.85V is
applied to this pin, or it is left floating, NiCd parameters are
used. Refer to the Applications Information section for
further details. Operating voltage range is GND to 3.3V.
GND (Pin 5): Ground. This pin provides a single-point
ground for internal references and other critical analog
circuits.
VRT (Pin 6): Thermistor Network Termination Output. The
LTC4011 provides 3.3V on this pin to drive an external
thermistor network connected between VRT, VTEMP and
GND. Additional power should not be drawn from this pin
by the host application.
VTEMP (Pin 7): Battery Temperature Input. An external
thermistor network may be connected to VTEMP to pro-
vide temperature-based charge qualification and addi-
tional fast charge termination control. Charging may also
be paused by connecting the VTEMP pin to GND. Refer to
the Operation and Applications Information sections for
complete details on external thermistor networks and
charge control. If this pin is not used it should be wired
to VRT. Operating voltage range is GND to 3.3V.
VCELL (Pin 8): Average Single-Cell Voltage Input. An
external voltage divider between BAT and VCDIV is attached
to this pin to monitor the average single-cell voltage of the
battery pack. The LTC4011 uses this information to pro-
tect against catastrophic battery overvoltage and to con-
trol the charging state. Refer to the Applications Information
section for further details on the external divider network.
Operating voltage range is GND to BAT.
VCDIV (Pin 9): Average Cell Voltage Resistor Divider Ter-
mination. The LTC4011 connects this pin to GND provided
the charger is not in shutdown. VCDIV is an open-drain
output to GND with an operating voltage range of GND to
BAT.
TIMER (Pin 10): Charge Timer Input. A resistor connected
between TIMER and GND programs charge cycle timing
limits. Refer to the Applications Information section for
complete details. Operating voltage range is GND to 1V.
SENSE (Pin 11): Charge Current Sense Input. An external
resistor between this input and BAT is used to program
charge current. Refer to the Applications Information
section for complete details on programming charge
current. Operating voltage ranges from (BAT – 50mV) to
(BAT + 200mV).
BAT (Pin 12): Battery Pack Connection. The LTC4011 uses
the voltage on this pin to control current sourced from VCC
to the battery during charging. Allowable operating volt-
age range is GND to VCC.
TOC (Pin 13): Active-Low Top-Off Charge Indicator Out-
put. The LTC4011 indicates the top-off charge state for
NiMH batteries by connecting this pin to GND. Refer to the
Operation and Applications Information sections for fur-
ther details. This output is capable of driving an LED and
should be left floating if not used. TOC is an open-drain
output to GND with an operating voltage range of GND to
VCC.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4012 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Effi ciency, Multi-Chemistry Battery Charger with PowerPath Control |
| LTC4012-1 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Effi ciency, Multi-Chemistry Battery Charger with PowerPath Control |
| LTC4012-2 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Effi ciency, Multi-Chemistry Battery Charger with PowerPath Control |
| LTC4012-3 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Efficiency, Multi-Chemistry Battery Charger with PowerPath Control |
| LTC4012CUF#PBF | 功能描述:IC BATT CHRGR MC HI-EFF 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 標準包裝:4,000 系列:- 功能:燃料，電量檢測計/監(jiān)控器 電池化學: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） 供應商設備封裝:8-MiniSO 包裝:帶卷 (TR) 其它名稱:497-10526-2 |
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