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LTC1475IS8TRPBF, LTC1476, LTC1477

Table of contents:
Info of LTC1475IS8TRPBF
Info of LTC1476
Info of LTC1477

LTC1475IS8TRPBF, LTC1476, LTC1477 Selling Leads, Datasheet

MFG:N/A Package Cooled:NA/ D/C:09+

LTC1475IS8TRPBF, LTC1476, LTC1477 Picture

LTC1475IS8TRPBF, LTC1476, LTC1477 Datasheet download

Five Points

Part Number: LTC1475IS8TRPBF

MFG: N/A

Package Cooled: NA/

D/C: 09+

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LTC1477 General Description

The LTC®1477/LTC1478 protected high side switches provide extremely low RDS(ON) switching with built-in protection against short-circuit and thermal overload conditions. A built-in charge pump generates gate drive higher than the supply voltage to fully enhance the internal NMOS switch. This switch has no parasitic body diode and therefore no current flows through the switch when it is turned off and the output is forced above the input supply voltage. (DMOS switches have parasitic body diodes that become forward biased under these conditions.) Two levels of protection are provided by the LTC1477/LTC1478.

The first level of protection is shortcircuit current limit which is set at 2A. The short-circuit current can be reduced to as low as 0.85A by disconnecting portions of the power device (see Applications Information). The second level of protection is provided by thermal overload protection which limits the die temperature to approximately 130°C.

The LTC1477 single is available in 8-lead SO packaging.
The LTC1478 dual is available in 16-lead SO packaging.

LTC1477 Maximum Ratings

Supply Voltage ............................................................ 7V
Enable Input Voltage ...................... (7V) to (GND  0.3V)
Output Voltage (OFF) (Note 1) ....... (7V) to (GND  0.3V)
Output Short-Circuit Duration .......................... Indefinite
Junction Temperature........................................... 110°C
Operating Temperature
LTC1477C/LTC1478C ................................. 0°C to 70°C
Storage Temperature Range ............... 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C

LTC1477 Features

Extremely Low RDS(ON) Switch: 0.07W
No Parasitic Body Diode
Built-In Short-Circuit Protection: 2A
Built-In Thermal Overload Protection
Operates from 2.7V to 5.5V
Inrush Current Limited
Ultralow Standby Current: 0.01mA
Built-In Charge Pump
Controlled Rise and Fall Times: tR = 1ms
Single Switch in 8-Pin SO Package
Dual Switch in Narrow 16-Pin SO Package

LTC1477 Typical Application

Notebook Computer Power Management
Power Supply/Load Protection
Supply/Battery Switch-Over Circuits
Circuit Breaker Function
"Hot Swap" Board Protection
Peripheral Power Protection

LTC1477 Connection Diagram

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