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| 型号： | LTC4011CFE#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 8/26页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHARGER HIEFF 20TSSOP |
| 标准包装： | 74 |
| 功能： | 充电管理 |
| 电池化学： | 镍镉（NiCd）、镍金属氢化物（NiMH） |
| 电源电压： | 4.5 V ~ 34 V |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽）裸露焊盘 |
| 供应商设备封装： | 20-TSSOP-EP |
| 包装： | 管件 |
| 产品目录页面： | 1341 (CN2011-ZH PDF) |
LTC4011
TYPICAL PERFORMANCE CHARACTERISTICS
INTV DD Voltage
PIN FUNCTIONS
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 V CC 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 condi-
tions 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. FAULT is an open-drain output to
GND with an operating voltage range of GND to V CC .
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 V CC .
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.
INTV DD Short-Circuit Current
GND (Pin 5): Ground. This pin provides a single-point
ground for internal references and other critical analog
circuits.
V RT (Pin 6): Thermistor Network Termination Output. The
LTC4011 provides 3.3V on this pin to drive an external
thermistor network connected between V RT, V TEMP and
GND. Additional power should not be drawn from this pin
by the host application.
V TEMP (Pin 7): Battery Temperature Input. An external
thermistor network may be connected to V TEMP to provide
temperature-based charge qualification and additional
fast charge termination control. Charging may also be
paused by connecting the V TEMP 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 V RT . Operating voltage range is GND to 3.3V.
V CELL (Pin 8): Average Single-Cell Voltage Input. An exter-
nal voltage divider between BAT and V CDIV is attached to
this pin to monitor the average single-cell voltage of the
battery pack. The LTC4011 uses this information to protect
against catastrophic battery overvoltage and to control
the charging state. Refer to the Applications Information
section for further details on the external divider network.
Operating voltage range is GND to BAT.
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相关代理商/技术参数 |
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| LTC4011CFETR | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Efficiency Standalone Nickel Battery Charger |
| LTC4011CFETRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Efficiency Standalone Nickel Battery Charger |
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| LTC4012-1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Effi ciency, Multi-Chemistry Battery Charger with PowerPath Control |
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