LTC4361CTS8-2#TRMPBF datasheet, PDF

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LTC4361CTS8-2#TRMPBF: DescriptionOver Voltage And Over Current Protection Automotive 8-Pin TSOT-23 T/R; File Size425KB，16 Pages; ManufacturerADI; Websitehttps://www.analog.com

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LTC4361CTS8-2#TRMPBF Overview

Over Voltage And Over Current Protection Automotive 8-Pin TSOT-23 T/R

LTC4361CTS8-2#TRMPBF Parametric

Parameter Name	Attribute value
EU restricts the use of certain hazardous substances	Compliant
ECCN (US)	EAR99
Part Status	Active
HTS	8542.39.00.01
Product Category	Over Voltage And Over Current Protection
Input Voltage (V)	2.5 to 80
Minimum Operating Supply Voltage (V)	2.5
Maximum Operating Supply Voltage (V)	80
Maximum Supply Current (mA)	0.4
Minimum Operating Temperature (°C)	0
Maximum Operating Temperature (°C)	70
Supplier Temperature Grade	Commercial
Pin Count	8
Standard Package Name	SOT-23
Supplier Package	TSOT-23
Mounting	Surface Mount
Package Height	0.9(Max)
Package Length	2.9
Package Width	1.75(Max)
PCB changed	8
Lead Shape	Gull-wing

User Manual

【User Guides】DC1506A - Demo Manual

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LTC4361-1/LTC4361-2

Overvoltage/Overcurrent

Protection Controller

FEATURES

DESCRIPTION

The

LTC

4361

overvoltage/overcurrent protection con-

troller safeguards 2.5V to 5.5V systems from input sup-

ply 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 overvolt-

age 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

provides power good monitoring for V

. The LTC4361

features a soft shutdown controlled by the

pin and

drives an optional external P-channel MOSFET for nega-

tive voltage protection. Following an overvoltage condi-

tion, the LTC4361 automatically 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.

All registered trademarks and trademarks are the property of their respective owners.

2.5V to 5.5V Operation

Overvoltage Protection Up to 80V

No Input Capacitor or TVS Required for Most

Applications

2% Accurate 5.8V Overvoltage Threshold

10% Accurate 50mV Overcurrent Circuit Breaker

<1µs Overvoltage Turn-Off, Gentle Shutdown

Controls N-Channel MOSFET

Adjustable Power-Up dV/dt Limits Inrush Current

Reverse Voltage Protection

Power Good Output

Low Current Shutdown

Latchoff (LTC4361-1) or Auto-Retry (LTC4361-2)

After Overcurrent

Available in 8-Lead ThinSOT™ and 8-Lead

(2mm

2mm) DFN Packages

APPLICATIONS

USB Protection

Handheld Computers

Cell/Smart Phones

MP3/MP4 Players

Digital Cameras

TYPICAL APPLICATION

Protection from Overvoltage and Overcurrent

0.025Ω

Si1470DH

OUT

GATE

SENSE OUT

LTC4361

PWRGD

GND

436112 TA01a

Output Protected from Overvoltage at Input

OUT

1.5A

, V

OUT

5V/DIV

GATE

10V/DIV

OUT

Si1470DH

OUT

= 10µF

0.5µs/DIV

436112 TA01b

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Rev C

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