LTC1647-2IS8#PBF

Series:	--
Packaging:	Tube
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Hot Swap Controller
Number of Channels:	2
Internal Switch(s):	No
Applications:	General Purpose
Features:	Auto Retry, UVLO
Programmable Features:	Circuit Breaker, Fault Timeout, Slew Rate
Voltage - Supply:	2.7 V ~ 16.5 V
Current - Output (Max):	--
Operating Temperature:	-40°C ~ 85°C
Current - Supply:	1mA
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Feature Pins:	(ON1, /FAULT1), (ON2, /FAULT2)
Base Part Number:	LTC1647

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The LTC1647-2IS8#PBF is a hot swap controller from Analog Devices. It is designed for use in hot swap applications where a supply voltage is applied to a load only when the load is within safe operating parameters. The device is a CMOS/BiCMOS integrated circuit and is designed to provide over-current protection, over-temperature protection, and system shutdown in the event of an overload or fault condition.The LTC1647-2IS8#PBF is suitable for use in hot swap applications requiring over-current, over-temperature, and system shutdown protection. It is designed to be used in systems with supply voltages up to 48V and is capable of providing up to 8A of current. It is available in a 16-lead plastic soic package.The primary features of the LTC1647-2IS8#PBF include:• Over-Current Protection (OCP)• Over-Temperature Protection (OTP)• System Shutdown in the Event of an Overload or Fault Condition• Internal Thermal Shutoff• Single Input Supply Voltage Range of 4.5V to 48V• Current Limit Adjustable from 4.5A to 8A• Configurable Soft-Start• Built-in High-Side Current Sense Amplifier• Dimming PWM Input• Fault Latch Output• Enable/Disable InputThe internal architecture of the LTC1647-2IS8#PBF consists of analog / digital circuitry and a power MOSFET switch. The analog / digital circuitry monitors the Hot Swap current and temperature and compares these against the programmed limit levels. When the current and/or temperature limit is exceeded, the power MOSFET switch is opened, disabling the Hot Swap output voltage. The LTC1647-2IS8#PBF also provides protection against over-temperature conditions and can be used to implement system shutdown in the event of an overload or fault condition.The LTC1647-2IS8#PBF has a high-side current sense amplifier which allows the sensing of current from any shunt resistor. The built-in amplifier has an adjustable gain and can also be used for dimming PWM input. A Fault Latch output can be used to indicate that the current or temperature limit has been exceeded. An Enable / Disable input is provided for disabling the Hot Swap output voltage.The LTC1647-2IS8#PBF is a versatile Hot Swap controller and can be used in a wide range of hot swap applications. It is suitable for use in systems with supply voltages up to 48V and is capable of providing up to 8A of current. The device provides protection against over-current, over-temperature, and system shutdown in the event of an overload or fault condition. It is available in a 16-lead plastic soic package and is suitable for a wide range of hot swap applications.

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