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ADI LTC4282IUH#TRPBF

Manufacturer	ADI
Mfr. Part Number	LTC4282IUH#TRPBF
Electland Part Code	389096
Electland Part Number	NYE_LTC4282IUH#TRPBF
Category	Surge Protection Devices (SPDs)
Description	Hot Swap Controller, Monitor 1 Channel General Purpose 32-QFN (5x5)
Datasheet	Download

Product Attributes

Category	Circuit Protection Transient Voltage Suppressors (TVS) Surge Protection Devices (SPDs)
type	Hot Swap Controller, Monitor
Operating Temperature	-40°C ~ 85°C
Features	Overcurrent Protection;Short-Circuit Protection;Under-voltage lockout
Mounting Type	Surface Mount
Package / Case	32-WFQFN Exposed Pad
Voltage Rating	2.9V~33V
Voltage - Supply	2.9V ~ 33V
Number of Channels	1
Applications	General Purpose
Current - Supply	3.5 mA
Number of lines	1
Supplier Device Package	32-QFN (5x5)
Internal Switch(s)	No
Programmable Features	Current Limit
Packaging	QFN-32-EP(5x5)
Tariff Active	True
ReachStatus	REACH Unaffected
RohsStatus	ROHS3 Compliant
MoistureSensitivityLevel	1 (Unlimited)
ExportControlClassNumber	EAR99
HtsusCode	8542.39.0090
Weight	0.5g

Introduction

The LTC4282 hot swap controller allows a board to be safely inserted and removed from a live backplane. Using one or more external N-channel pass transistors, board supply voltage and inrush current are ramped up at an adjustable rate. An I2C interface and onboard ADC allows for monitoring of board current, voltage, power, energy and fault status. The device features analog foldback current limiting and supply monitoring for applications from 2.9V to 33V. Dual 12V gate drive allows high power applications to either share safe operating area across parallel MOSFETs or support a 2-stage start-up that first charges the load capacitance followed by enabling a low on-resistance path to the load. The LTC4282 is well suited to high power applications because the precise monitoring capability and accurate current limiting reduce the extremes in which both loads and power supplies must safely operate. Non-volatile configuration allows for flexibility in the autonomous generation of alerts and response to faults.

Features

Allows Safe Board Insertion Into Live Backplane
12-/16-Bit ADC with ±0.7% Total Unadjusted Error
Monitors Current, Voltage, Power and Energy
Controls Two Parallel N-Channel MOSFETs for SOA Sharing in High Current Applications
Internal EEPROM for Nonvolatile Configuration
Wide Operating Voltage Range: 2.9V to 33V
I2C/SMBus Digital Interface (Coexists with PMBus Devices)
12V Gate Drive for Lower MOSFET RDS(ON)
Programmable Current Limit with 2% Accuracy
MOSFET Power Limiting with Current Foldback
Continuously Monitors MOSFET Health
Stores Minimum and Maximum Measurements
Alerts When Alarm Thresholds Exceeded
Input Overvoltage and Undervoltage Protection
Internal ±5% or External Timebases
32-Pin 5mm × 5mm QFN Package
AEC-Q100 Qualified for Automotive Applications