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参数资料
| 型号： | LTC4070IDDB#TRMPBF |
| 厂商： | Linear Technology |
| 文件页数： | 5/16页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHRGR LIION/POLY 8DFN |
| 产品培训模块： | LTC4070 - Li-Ion/Polymer Shunt Battery Charger System |
| 标准包装： | 500 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion）、锂聚合物（Li-Pol） |
| 工作温度： | -40°C ~ 125°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（3x2） |
| 包装： | 带卷 (TR) |
LTC4070
TYPICAL PERFORMANCE CHARACTERISTICS
T A = 25°C, unless otherwise noted.
V OH LBO/HBO vs I SOURCE
V OL LBO/HBO vs I SINK
2.5
2.5
V CC = 3.7V
2.0
1.5
1.0
0.5
LBO
V CC = 3.1V
HBO
V CC = V F – 25m
2.0
1.5
1.0
0.5
0
0
0.5
1.0
1.5
2.0
2.5
3.0
0
0
2
4
6
8
10
I SOURCE (mA)
4070 G10
I SINK (mA)
4070 G11
Power Spectral Density
Hot Plug Transient, C C = 330μF,
R IN = 81Ω
Step Response with 800mAHr
Battery, R IN = 81Ω
35
30
25
C C = 10μF, I CC = 1mA, 1Hz Res
Bandwidth, Noise = 1.0452mV RMS
from 10Hz to 100kHz
CH1 = V IN
(2V/DIV)
CH4 = I IN
(10mA/DIV)
CH4 = I IN (10mA/DIV)
CH1 = V IN (2V/DIV)
20
15
10
CH2 = V CC
(2V/DIV)
CH3 = V HBO
(2V/DIV)
CH2 = V CC (2V/DIV)
CH3 = V HBO (2V/DIV)
5
0
0
1
10
100
1000 10000 100000
4ms/DIV
4070 G13
400ns/DIV
4070 G14
FREQUENCY (Hz)
4070 G12
PIN FUNCTIONS
NTCBIAS (Pin 1): NTC Bias Pin. Connect a resistor from
NTCBIAS to NTC, and a thermistor from NTC to GND. Float
NTCBIAS when not in use. Minimize parasitic capacitance
on this pin.
NTC (Pin 2): Input to the Negative Temperature Coefficient
Thermistor Monitoring Circuit. The NTC pin connects to
a negative temperature coefficient thermistor which is
typically co-packaged with the battery to determine the
temperature of the battery. If the battery temperature is too
high, the float voltage is reduced. Connect a low drift bias
resistor from NTCBIAS to NTC and a thermistor from NTC
to GND. When not in use, connect NTC to V CC . Minimize
parasitic capacitance on this pin.
ADJ (Pin 3): Float Voltage Adjust Pin. Connect ADJ to GND
to program 4.0V float voltage. Disconnect ADJ to program
4.1V float voltage. Connect ADJ to V CC to program 4.2V
float voltage. The float voltage is also adjusted by the NTC
thermistor.
4070fc
5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4070IDDBTRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Li-Ion/Polymer Shunt Battery Charger System |
| LTC4070IMS8E | 制造商:LINER 制造商全称:Linear Technology 功能描述:Li-Ion/Polymer Shunt Battery Charger System |
| LTC4070IMS8E#PBF | 功能描述:IC BATT CHRGR LIION/POLY 8MSOP 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 |
| LTC4070IMS8E#TRPBF | 功能描述:IC BATT CHRGR LIION/POLY 8MSOP 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 |
| LTC4070IMS8EPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Li-Ion/Polymer Shunt Battery Charger System |
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