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參數(shù)資料
| 型號： | LTC4352HMS#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO12 |
| 封裝： | LEAD FREE, PLASTIC, MSOP-12 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 218K |
| 代理商： | LTC4352HMS#PBF |
LTC4352
1
4352fa
Typical applicaTion
DescripTion
Low Voltage Ideal Diode
Controller with Monitoring
The LTC4352 creates a near-ideal diode using an external
N-channelMOSFET.ItreplacesahighpowerSchottkydiode
andtheassociatedheatsink,savingpowerandboardarea.
The ideal diode function permits low loss power ORing
and supply holdup applications.
The LTC4352 regulates the forward voltage drop across
the MOSFET to ensure smooth current transfer in diode-
OR applications. A fast turn-on reduces the load voltage
droop during supply switch-over. If the input supply fails
or is shorted, a fast turn-off minimizes reverse currents.
The controller operates with supplies from 2.9V to 18V.
For lower voltages, an external supply is needed at the
VCC pin. Power passage is disabled during undervoltage
or overvoltage conditions. The controller also features an
open MOSFET detect circuit that flags excessive voltage
drop across the pass transistor in the on state. A REV pin
enables reverse current, overriding the diode behavior
when desired.
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
ThinSOT and PowerPath are trademarks of Linear Technology Corporation. All other trademarks
are the property of their respective owners.
2.9V to 18V Ideal Diode
FeaTures
applicaTions
n
Low Loss Replacement for Power Diode
n
Controls N-Channel MOSFET
n
0V to 18V Supply ORing or Holdup
n
0.5μs Turn-On and Turn-Off Time
n
Undervoltage and Overvoltage Protection
n
Open MOSFET Detect
n
Status and Fault Outputs
n
Hot Swappable
n
Reverse Current Enable Input
n
12-Pin MSOP and DFN (3mm
× 3mm) Packages
n
Redundant Power Supplies
n
Supply Holdup
n
Telecom Infrastructure
n
Computer Systems and Servers
VCC
UV
OV
REV
LTC4352
STATUS
FAULT
MOSFET ON
STATUS
0.1F*
TO LOAD
2.9V TO 18V
Si7336ADP
*OPTIONAL
FAULT
0.1F
4352 TA01
CPO
VIN
SOURCE
GATE
GND
OUT
Power Dissipation vs Load Current
LOAD CURRENT (A)
0
POWER
DISSIPATION
(W)
2.5
2.0
1.5
1.0
0.5
4.0
3.0
3.5
2
4
6
8
4352 TA01b
10
DIODE (SBG1025L)
MOSFET (Si7336ADP)
POWER
SAVED
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4352IDD#PBF | 功能描述:IC IDEAL DIODE CNTRL 12-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - O 圈控制器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:電池備份，工業(yè)/汽車，大電流開關(guān) FET 型:- 輸出數(shù):5 內(nèi)部開關(guān):是 延遲時間 - 開啟:100ns 延遲時間 - 關(guān)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(yīng)商設(shè)備封裝:16-SOIC N 包裝:帶卷 (TR) |
| LTC4352IDD#TRPBF | 功能描述:IC IDEAL DIODE CNTRL 12-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - O 圈控制器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:電池備份，工業(yè)/汽車，大電流開關(guān) FET 型:- 輸出數(shù):5 內(nèi)部開關(guān):是 延遲時間 - 開啟:100ns 延遲時間 - 關(guān)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(yīng)商設(shè)備封裝:16-SOIC N 包裝:帶卷 (TR) |
| LTC4352IMS#PBF | 功能描述:IC IDEAL DIODE CNTRL 12-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - O 圈控制器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:電池備份，工業(yè)/汽車，大電流開關(guān) FET 型:- 輸出數(shù):5 內(nèi)部開關(guān):是 延遲時間 - 開啟:100ns 延遲時間 - 關(guān)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(yīng)商設(shè)備封裝:16-SOIC N 包裝:帶卷 (TR) |
| LTC4352IMS#TRPBF | 功能描述:IC IDEAL DIODE CNTRL 12-MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - O 圈控制器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:電池備份，工業(yè)/汽車，大電流開關(guān) FET 型:- 輸出數(shù):5 內(nèi)部開關(guān):是 延遲時間 - 開啟:100ns 延遲時間 - 關(guān)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(yīng)商設(shè)備封裝:16-SOIC N 包裝:帶卷 (TR) |
| LTC4352IMSPBF | 制造商:Linear Technology 功能描述:Ideal Diode Controller Monitoring MSOP12 |
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