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參數資料
| 型號： | LTC4361IDC-2#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： | 2 X 2 MM, LEAD FREE, PLASTIC, DFN-8 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 327K |
| 代理商： | LTC4361IDC-2#TRPBF |
LTC4361-1/LTC4361-2
1
436112fa
TYPICAL APPLICATION
DESCRIPTION
Overvoltage/Overcurrent
Protection Controller
APPLICATIONS
n USB Protection
n Handheld Computers
n Cell/Smart Phones
n MP3/MP4 Players
n Digital Cameras
n 2.5V to 5.5V Operation
n Overvoltage Protection Up to 80V
n No Input Capacitor or TVS Required for Most
Applications
n 2% Accurate 5.8V Overvoltage Threshold
n 10% Accurate 50mV Overcurrent Circuit Breaker
n <1μs Overvoltage Turn-Off, Gentle Shutdown
n Controls N-Channel MOSFET
n Adjustable Power-Up dV/dt Limits Inrush Current
n Reverse Voltage Protection
n Power Good Output
n Low Current Shutdown
n Latchoff (LTC4361-1) or Auto-Retry (LTC4361-2)
After Overcurrent
n Available in 8-Lead ThinSOT and 8-Lead
(2mm
× 2mm) DFN Packages
The LTC4361 overvoltage/overcurrent protection control-
ler safeguards 2.5V to 5.5V systems from input supply
overvoltage. It is designed for portable devices with
multiple power supply options including wall adaptors,
car battery adaptors and USB ports.
The LTC4361 controls an external N-channel MOSFET in
series with the input power supply. During overvoltage
transients, the LTC4361 turns off the MOSFET within
1μs, isolating downstream components from the input
supply. Inductive cable transients are absorbed by the
MOSFET and load capacitance. In most applications, the
LTC4361 provides protection from transients up to 80V
without requiring transient voltage suppressors or other
external components.
The LTC4361 has a delayed start-up and adjustable dV/dt
ramp-up for inrush current limiting. A PWRGD pin provides
power good monitoring for VIN.TheLTC4361featuresasoft
shutdown controlled by the ON pin and drives an optional
external P-channel MOSFET for negative voltage protection.
Following an overvoltage condition, the LTC4361 automati-
cally restarts with a start-up delay. After an overcurrent
fault, the LTC4361-1 remains off while the LTC4361-2
automatically restarts after a 130ms start-up delay.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
ThinSOT, Hot Swap, No RSENSE and PowerPath are trademarks of Linear Technology
Corporation. All other trademarks are the property of their respective owners.
Output Protected from Overvoltage at Input
Protection from Overvoltage and Overcurrent
GATE
Si1470DH
0.025Ω
SENSE
IN
436112 TA01a
VOUT
5V
1.5A
VIN
5V
LTC4361
ON
OUT
PWRGD
GND
COUT
VGATE
10V/DIV
VIN, VOUT
5V/DIV
0.5μs/DIV
436112 TA01b
Si1470DH
COUT = 10μF
VOUT
VIN
FEATURES
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LTC4361ITS8-1#PBF | 制造商:Linear Technology 功能描述:Over Voltage Protection Controller 8-Pin TSOT-23 制造商:Linear Technology 功能描述:Bulk |
| LTC4361ITS8-1#TRMPBF | 功能描述:IC OVERVOLT PROT CONT TSOT23-8 RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標準包裝:50 系列:- 類型:熱交換控制器 應用:-48V 遠程電力系統，AdvancedTCA ? 系統，高可用性 內部開關:無 電流限制:可調 電源電壓:11.5 V ~ 14.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:10-MSOP 包裝:管件 |
| LTC4361ITS8-1#TRPBF | 功能描述:IC CTLR OVP LATCHOFF TSOT23-8 RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標準包裝:50 系列:- 類型:熱交換控制器 應用:-48V 遠程電力系統，AdvancedTCA ? 系統，高可用性 內部開關:無 電流限制:可調 電源電壓:11.5 V ~ 14.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:10-MSOP 包裝:管件 |
| LTC4361ITS8-2#PBF | 制造商:Linear Technology 功能描述:Bulk |
| LTC4361ITS8-2#TRMPBF | 功能描述:IC OVERVOLT PROT CONT TSOT23-8 RoHS:是 類別:集成電路 (IC) >> PMIC - 熱交換 系列:- 標準包裝:50 系列:- 類型:熱交換控制器 應用:-48V 遠程電力系統，AdvancedTCA ? 系統，高可用性 內部開關:無 電流限制:可調 電源電壓:11.5 V ~ 14.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:10-MSOP 包裝:管件 |
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