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參數(shù)資料
| 型號(hào)： | LTC4071EMS8E#PBF |
| 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(yè)數(shù)： | 1/18頁(yè) |
| 文件大小： | 219K |
| 代理商： | LTC4071EMS8E#PBF |
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LTC4071
1
4071fb
Typical applicaTion
DescripTion
Li-Ion/Polymer Shunt
Battery Charger System with
Low Battery Disconnect
The LTC4071 allows simple charging of Li-Ion/Polymer
batteriesfromverylowcurrent,intermittentorcontinuous
charging sources. A near-zero current low battery latch-
ing disconnect function protects even the lowest capacity
batteries from deep discharge and potentially irreparable
damage. The 550nA to 50mA operating current makes
chargingpossiblefrompreviouslyunusablesources.With
its low operating current the LTC4071 is well suited to
charge low capacity Li-Ion or thin film batteries in energy
harvesting applications. The unique architecture of the
LTC4071 allows for an extremely simple battery charger
solution, requiring just one external resistor.
The LTC4071 offers a pin selectable float voltage with ±1%
accuracy. The integrated thermal battery qualifier extends
battery lifetime and improves reliability by automatically
reducing the battery float voltage at NTC thermistor tem-
peratures above 40°C. The LTC4071 also provides two
pin selectable low battery disconnect levels and a high
battery status output.
The device is offered in two thermally enhanced packages,
a compact low profile (0.75mm) 8-lead (2mm × 3mm)
DFN and an 8-lead MSOP package.
L
, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks
and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
FeaTures
applicaTions
n
Charger Plus Pack Protection in One IC
n
Low Operating Current (550nA)
n
Near Zero Current (<0.1nA) Low Battery Disconnect
Function to Protect Batteries from Over-Discharge
n
Pin Selectable Low Battery Disconnect Level: 2.7V
or 3.2V
n
1% Float Voltage Accuracy Over Temperature
n
50mA Maximum Internal Shunt Current
n
Pin Selectable Float Voltage Options: 4.0V, 4.1V, 4.2V
n
Ultralow Power Pulsed NTC Float Conditioning for
Li-Ion/Polymer Protection
n
Suitable for Intermittent, Continuous and Very Low
Power Charging Sources
n
High Battery Status Output
n
Thermally Enhanced, Low Profile (0.75mm) 8-lead
(2mm × 3mm) DFN and MSOP Packages
n
Low Capacity, Li-Ion/Polymer Battery Back-Up
n
Thin Film Batteries
n
Energy Scavenging/Harvesting
n
Solar Power Systems with Back-Up
n
Memory Back-Up
n
Embedded Automotive
4071 TA01a
ADJ
BAT
RIN
GND
Li-Ion
NTC
VCC
VIN
LBSEL
+
TO SYSTEM LOAD: VCC
1F
TEMPERATURE (°C)
–25
0
I LEAK
(A)
10p
125
4071 TA01b
1p
0.1p
50
25
75
100
1n
100p
10n
100n
VBAT = 2.65V
Battery Disconnect ILEAK vs Temperature
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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(pán) 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤(pán) 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(pán) 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤(pán) 包裝:管件 |
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