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參數(shù)資料
| 型號： | LTC4414IMS8 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 36V, Low Loss PowerPathTM Controller for Large PFETs |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | PLASTIC, MSOP-8 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 162K |
| 代理商： | LTC4414IMS8 |
1
LTC4414
4414fc
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
PowerPath and ThinSOT are trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
FORWARD VOLTAGE (V)
0.02
0
C
8.0
3.6
CONSTANT
R
ON
4414 TA01b
0.5
CONSTANT
VOLTAGE
SCHOTTKY
DIODE
LTC4414
V
IN
GND
CTL
NC
SENSE
GATE
STAT
NC
LTC4414
C
OUT
V
CC
TO LOAD
STATUS OUTPUT
LOW WHEN POWER
SUPPLY PRESENT
470k
4414
TA
01
UPS840
SUP75P03_07
BATTERY
CELL(S)
POWER
SUPPLY
INPUT
Automatic Switchover of Load Between a Battery and a Power Supply
APPLICATIU
FEATURES
DESCRIPTIOU
The LTC
4414 controls an external P-channel MOSFET to
create a near ideal diode function for power switchover.
This permits highly efficient OR’ing of multiple power
sources for extended battery life and low self- heating. When
conducting, the voltage drop across the MOSFET is typi-
cally 20mV. For applications with a wall adapter or other aux-
iliary power source, the load is automatically disconnected
from the battery when the auxiliary source is connected.
Two or more LTC4414s may be interconnected to allow
switchover between multiple batteries or charging of mul-
tiple batteries from a single charger.
The wide supply operating range supports operation from
one to eight Li-Ion cells in series. The low quiescent
current (30
μ
A typical) is independent of the load current.
The gate driver includes an internal voltage clamp for
MOSFET protection.
The STAT pin can be used to enable an auxiliary P-channel
MOSFET power switch when an auxiliary supply is
detected. This pin may also be used to indicate to a micro-
controller that an auxiliary supply is connected. The con-
trol (CTL) input enables the user to force the primary
MOSFET off and the STAT pin low.
The LTC4414 is available in a low profile 8-lead MSOP
package.
TYPICAL APPLICATIOU
36V, Low Loss PowerPath
TM
Controller for Large PFETs
■
Designed Specifically to Drive Large Q
G
PFETs
■
Very Low Loss Replacement for Power Supply
OR’ing Diodes
■
3.5V to 36V AC/DC Adapter Voltage Range
■
Minimal External Components
■
Automatic Switching Between DC Sources
■
Low Quiescent Current: 30
μ
A
■
3V to 36V Battery Voltage Range
■
Limited Reverse Battery Protection
■
MOSFET Gate Protection Clamp
■
Manual Control Input
■
Space Saving 8-Lead MSOP Package
■
High Current Power Path Switch
■
Industrial and Automotive Applications
■
Uninterruptable Power Supplies
■
Logic Controlled Power Switch
■
Battery Backup Systems
■
Emergency Systems with Battery Backups
LTC4414 vs Schottky Diode Forward Voltage Drop
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4414IMS8#PBF | 功能描述:IC CNTRLR POWERPATH 8-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 標準包裝:1,000 系列:- 應用:電池備份，工業(yè)/汽車，大電流開關 FET 型:- 輸出數(shù):5 內(nèi)部開關:是 延遲時間 - 開啟:100ns 延遲時間 - 關閉:- 電源電壓:3 V ~ 5.5 V 電流 - 電源:250µA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:16-SOIC N 包裝:帶卷 (TR) |
| LTC4414IMS8#TRPBF | 功能描述:IC CNTRLR POWERPATH 8-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 標準包裝:1,000 系列:- 應用:電池備份，工業(yè)/汽車，大電流開關 FET 型:- 輸出數(shù):5 內(nèi)部開關:是 延遲時間 - 開啟:100ns 延遲時間 - 關閉:- 電源電壓:3 V ~ 5.5 V 電流 - 電源:250µA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:16-SOIC N 包裝:帶卷 (TR) |
| LTC4415EDHC#PBF | 功能描述:IC DUAL 4A DIODES 16-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 標準包裝:1,000 系列:- 應用:電池備份，工業(yè)/汽車，大電流開關 FET 型:- 輸出數(shù):5 內(nèi)部開關:是 延遲時間 - 開啟:100ns 延遲時間 - 關閉:- 電源電壓:3 V ~ 5.5 V 電流 - 電源:250µA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:16-SOIC N 包裝:帶卷 (TR) |
| LTC4415EDHC#TRPBF | 功能描述:IC DUAL 4A DIODES 16-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 標準包裝:1,000 系列:- 應用:電池備份，工業(yè)/汽車，大電流開關 FET 型:- 輸出數(shù):5 內(nèi)部開關:是 延遲時間 - 開啟:100ns 延遲時間 - 關閉:- 電源電壓:3 V ~ 5.5 V 電流 - 電源:250µA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:16-SOIC N 包裝:帶卷 (TR) |
| LTC4415EMSE#PBF | 功能描述:IC DUAL 4A DIODES 16-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - O 圈控制器 系列:PowerPath™ 標準包裝:1,000 系列:- 應用:電池備份，工業(yè)/汽車，大電流開關 FET 型:- 輸出數(shù):5 內(nèi)部開關:是 延遲時間 - 開啟:100ns 延遲時間 - 關閉:- 電源電壓:3 V ~ 5.5 V 電流 - 電源:250µA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:16-SOIC N 包裝:帶卷 (TR) |
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