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参数资料
| 型号： | LTC4150CMS#TR |
| 厂商： | Linear Technology |
| 文件页数： | 11/14页 |
| 文件大小： | 0K |
| 描述： | IC COUNTER/BATT GAS GAUGE 10MSOP |
| 标准包装： | 2,500 |
| 功能： | 燃料，电量检测计/监控器 |
| 电池化学： | 锂离子，镍镉，镍氢 |
| 电源电压： | 2.7 V ~ 8.5 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-MSOP |
| 包装： | 带卷 (TR) |
LTC4150
APPLICATIONS INFORMATION
PC BOARD LAYOUT SUGGESTIONS
Keep all traces as short as possible to minimize noise
and inaccuracy. The supply bypass capacitor C2 should
TO CHARGER
PIN 1
be placed close to the LTC4150. The 4.7μF ?lter capacitor
C F should be placed close the C F+ and C F – pins and should
be a low leakage, unpolarized type. Use a 4-wire Kelvin
R SENSE
LTC4150
sense connection for the sense resistor, locating it close
to the LTC4150 with short sense traces to the SENSE + and
SENSE – pins and longer force lines to the battery pack
and powered load, see Figure 7.
TYPICAL APPLICATIONS
Figure 8 shows a typical application designed for a single
cell lithium-ion battery and 500mA maximum load current.
Use Equation 1 to calculate R SENSE = 0.05V/0.5A = 0.1Ω.
With R SENSE = 0.1Ω, Equation 7 shows that each interrupt
corresponds to 0.085mAh. Equation 14, derived from
Equation 2, gives the number of INT assertions for average
battery current, I BATT , over a time, t, in seconds:
INT Assertions = G VF ? I BATT ? R SENSE ? t (14)
Loading the battery so that 51.5mA is drawn from it over
600 seconds results in 100 INT assertions. For an 800mAh
4150 F07
TO BATTERY
Figure 7. Kelvin Connection on SENSE Resistor
With a microcontroller supply = 5V, Equation 11 gives
R L > 2.875k. The nearest standard value is 3k.
From Equation 12, R L = 3k gives R1 + R2 equal to 150.5k.
A single cell lithium-ion battery can discharge as low as
2.7V.
From Equation 13, select R1 = 75k; the nearest standard
value for R2 is 76.8k.
Also from Equation 13, we choose R3 = 75k and R4 =
76.8k.
battery, this is (51.5mA ? 1/6h) / 800mAh = 11% of the
battery’s capacity.
POWER-DOWN
SWITCH
LOAD
5.0V
C L
47μF
+
C F +
R SENSE
0.1Ω
SINGLE-CELL
Li-Ion
3.0V ~ 4.2V
C F
1
2
3
SENSE + INT
LTC4150 CLR
SENSE – V DD
GND
10
9
8
7
C2
4.7μF
R L
3k
R2
76.8k
R1
75k
R L
3k
μP
C F
4.7μF
4
5
–
SHDN
POL
6
SHUTDOWN
R4
76.8k
R3
75k
4150 F08
Figure 8. Typical Application, Single Cell Lithium-Ion Battery
4150fc
11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4150CMSTRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Coulomb Counter/ Battery Gas Gauge |
| LTC4150IMS | 功能描述:IC COUNTER/GAUGE BATTERY 10MSOP RoHS:否 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 |
| LTC4150IMS#PBF | 功能描述:IC COUNTER/GAUGE GAS/BATT 10MSOP 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 |
| LTC4150IMS#TR | 功能描述:IC COUNTER/GAUGE BATTERY 10MSOP RoHS:否 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 |
| LTC4150IMS#TRPBF | 功能描述:IC COUNTER/GAUGE GAS/BATT 10MSOP 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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