LTC2913 datasheet(1/16 Pages) LINER

部品番号	LTC2913

部品情報	UV, OV and Reverse Supply Protection Controller Low Operating Current: 125關A

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メーカー	LINER [Linear Technology]

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LTC4365

1

4365f

TYPICAL APPLICATION

FEATURES

DESCRIPTION

UV, OV and Reverse

Supply Protection Controller

12V Automotive Application

APPLICATIONS

n Wide Operating Voltage Range: 2.5V to 34V

n Overvoltage Protection to 60V

n Reverse Supply Protection to –40V

n Blocks 50Hz and 60Hz AC Power

n No Input Capacitor or TVS Required for Most

Applications

n Adjustable Undervoltage and Overvoltage

Protection Range

n Charge Pump Enhances External N-Channel MOSFET

n Low Operating Current: 125μA

n Low Shutdown Current: 10μA

n Fault Status Output

n Compact 8-Lead, 3mm × 2mm DFN and

TSOT-23 (ThinSOT™) Packages

n Portable Instrumentation

n Industrial Automation

n Laptops

n Automotive

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and

ThinSOT, No RSENSE and Hot Swap are trademarks of Linear Technology Corporation. All other

trademarks are the property of their respective owners.

VIN

UV

OV

SHDN

OV = 18V

UV = 3.5V

4365 TA01a

VOUT

FAULT

GATE

VIN

12V

VOUT

3A

Si4946

GND

LTC4365

510k

1820k

243k

59k

Load Protected from Reverse and Overvoltage at VIN

The LTC®4365 protects applications where power supply

input voltages may be too high, too low or even negative.

It does this by controlling the gate voltages of a pair of

external N-channel MOSFETs to ensure that the output

stays within a safe operating range.

The LTC4365 can withstand voltages between –40V and

60V and has an operating range of 2.5V to 34V, while

consuming only 125μA in normal operation.

Two comparator inputs allow configuration of the

overvoltage (OV) and undervoltage (UV) set points using an

external resistive divider. A shutdown pin provides external

control for enabling and disabling the MOSFETs as well

as placing the device in a low current shutdown state. A

fault output provides status of the gate pin pulling low. A

fault is indicated when the part is in shutdown or the input

voltage is outside the UV and OV set points.

–30V

GND

10V/DIV

30V

4365 TA01b

1s/DIV

UV = 3.5V

OV = 18V

VOUT

VIN

VALID

WINDOW

同様の部品番号 - LTC2913

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