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參數(shù)資料
| 型號： | LTC4071EMS8E#TRPBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | LEAD FREE, PLASTIC, MSOP-8 |
| 文件頁數(shù)： | 5/18頁 |
| 文件大?。?/td> | 219K |
| 代理商： | LTC4071EMS8E#TRPBF |
LTC4071
13
4071fb
Figure 6. Simple Photovoltaic Charger
Figure 7. Piezoelectric Energy Harvester with Battery Backup
LTC4071
BAT
GND
Li-Ion
BATTERY
VCC
+
4071 F07
LTC4071
LTC3588-1
BAT
LBSEL
GND
PFCB-W14
Li-Ion
BATTERY
VCC
+
1F
PZ1
PZ2
D1
D0
SW
VOUT
VIN2
4.7F
3.3V
SYSTEM
LOAD
100F
10H
CAP
VIN
VIN2
22F
1F
MMSD4148T1
15k
applicaTions inForMaTion
the four input 249k resistors are sized for acceptable UL
leakage in the event that one of the resistors short. Here,
the LTC4071 will fully charge the battery from the AC line
while meeting the UL specification with 104A of available
charge current.
A simple photovoltaic (PV) application for the LTC4071
is illustrated in Figure 6. At low VCC voltage, PV current
flows to both the system at VCC as well as the battery.
When VCC reaches the programmed float voltage (4.1V
withADJfloating)thentheLTC4071shuntsexcesscurrent
not used by the load, limiting VCC to 4.1V and effectively
reducing the battery charge current to zero. If the PV cells
stop supplying current, the battery supports the load at
VCC through the LTC4071. Add a diode in series with the
PV cells to prevent reverse leakage of the PV cells from
draining the battery. If the battery discharges to the point
where VCC falls below VLBD (3.2V with LBSEL tied to
GND) the LTC4071 disconnects the load from the battery
to protect the battery from over discharge.
Typically, solar cells are inherently limited in current, but
this circuit may require a resistor, RIN, in series with the
LTC4071 for high current solar cells. Select RIN such that
the LTC4071 never needs to shunt more than 50mA.
The simple schematic in Figure 7 illustrates a complete
piezoelectric energy harvesting application using the
LTC4071 to charge and protect Li-Ion cells along with the
LTC3588-1 to rectify and regulate energy generated from
a piezoelectric generator to a fixed 3.3V load.
LTC4071
BAT
NTCBIAS
NTC
LBSEL
ADJ
1F
GND
DS16003
Li-Ion
VCC
+
4071 F06
FLOAT
* NTHS0402N02N1002F
** JAMECO 171061
10k
T*
SYSTEM LOAD
**
+
–
+
–
+
–
+
–
相關(guān)PDF資料 |
PDF描述 |
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| LTC4071EDDB#TRMPBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| LTC4071IMS8E#TRPBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| LTC4071IDDB#TRMPBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| LTC4071EDDB#TRPBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4071IDDB | 制造商:LINEAR 制造商全稱:LINEAR 功能描述:Li-Ion/Polymer Shunt Battery Charger System with Low Battery Disconnect |
| LTC4071IDDB#PBF | 制造商:Linear Technology 功能描述:Battery Charger Li-Ion/Li-Polymer 50mA 8-Pin DFN EP |
| LTC4071IDDB#TRPBF | 功能描述:IC LI-ION/POLY BATT CHRGR 8-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:61 系列:- 功能:電源管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:4.35 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:22-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤 包裝:管件 |
| LTC4071IMS8E | 制造商:LINEAR 制造商全稱:LINEAR 功能描述:Li-Ion/Polymer Shunt Battery Charger System with Low Battery Disconnect |
| LTC4071IMS8E#PBF | 功能描述:IC LI-ION/POLY BATT CHRGR 8-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:61 系列:- 功能:電源管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:4.35 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:22-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤 包裝:管件 |
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