参数资料
| 型号： | LTC4095EDC#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 6/16页 |
| 文件大小： | 0K |
| 描述： | IC CHARGER LI-ION/POLY 8-DFN |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion）、锂聚合物（Li-Pol） |
| 电源电压： | 4.35 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFDFN 裸露焊盘 |
| 供应商设备封装： | 8-DFN（2x2） |
| 包装： | 带卷 (TR) |
LTC4095
PIN FUNCTIONS
I BAT =
BAT(Pin1): SingleCellLi-IonBatteryPin.Providescharge
current to the battery and regulates ?nal ?oat voltage to
4.2V.
GND (Pin 2): Ground
? C ? H ? R ? G (Pin 3): Open-Drain Charge Status Output. The
? C ? H ? R ? G pin indicates the status of the battery charger. Four
possible states are represented by ? C ? H ? R ? G: charging, not
charging (i.e., the charge current is less than 1/10th of the
full-scale charge current), unresponsive battery (i.e., the
battery voltage remains below 2.9V after 1/2 hour of charg-
ing) and battery temperature out of range. ? C ? H ? R ? G requires
a pull-up resistor and/or LED to provide indication.
SUSP (Pin 4): Suspend Mode Input. A voltage greater
than 1.2V on the SUSP pin puts the LTC4095 into suspend
mode, disables the charger and resets the termination
timer. A weak pull-down current is internally applied to
this pin to ensure it is low when the input is not being
driven externally.
HPWR (Pin 5): High Power Select Input. A voltage greater
than 1.2V on the HPWR pin will set the charge current to
100% of its programmed value. A voltage less than 0.4V
on the pin will set the charge current to 20% of its pro-
grammed value. When used with a 1.74k PROG resistor
this pin can toggle between low power and high power
modes per USB speci?cation. A weak pull-down current
is internally applied to this pin to ensure it is low when
NTC (Pin 6): Input to the NTC Thermistor Monitoring
Circuit. The NTC pin connects to a negative temperature
coef?cient thermistor which is typically co-packaged with
the battery pack to determine if the battery is too hot or
too cold to charge. If the battery temperature is out of
range, charging is paused until the battery temperature
re-enters the valid range. A low drift bias resistor is re-
quired from IN to NTC and a thermistor is required from
NTC to ground. To disable the NTC function, the NTC pin
should be grounded.
PROG (Pin 7): Charge Current Program and Charge Current
Monitor Pin. Charge current is programmed by connect-
ing a resistor from PROG to ground. When charging in
constant-current mode, the PROG pin servos to 1V if the
HPWR pin is pulled high, or 200mV if the HPWR pin is
pulled low. The voltage on this pin always represents the
battery current through the following formula:
PROG
? 800
R PROG
IN (Pin 8): Input Supply Voltage. This pin provides power
to the battery charger and should be bypassed with at least
a 1μF capacitor. IN can range from 4.3V to 5.5V.
Exposed Pad (Pin 9): Ground. The exposed package pad
is ground and must be soldered to the PCB ground for
proper functionality and for maximum heat transfer.
the input is not being driven externally.
4095fa
6
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相关代理商/技术参数 |
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| LTC4096 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Input Standalone Li-Ion Battery Chargers |
| LTC4096EDD | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Input Standalone Li-Ion Battery Chargers |
| LTC4096EDD#PBF | 功能描述:IC CHARGER LI-ION DL 10-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
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