LTC4283

RECOMMENDED FOR NEW DESIGNS

Negative Voltage Hot Swap Controller with Energy Monitor

Data Sheet (Rev. B) Product Selection Table

Part Models: 6
1ku List Price: Starting From $6.15

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Part Details

Allows Safe Insertion into Live –48V Backplanes
Protects MOSFET with SOA Timer
Programmable 15mV to 30mV Current Limit Sense Voltage with <3.3% Accuracy and Adjustable Foldback
8-Bit to 16-Bit Gear-Shift ADC with 0.7% Accuracy
Monitors Voltages, Currents, Power and Energy
Nonvolatile Configuration and Fault Recording
Floating Topology for Rugged High Voltage Operation

Selectable Inrush Control: dV/dt or Current Limit
I²C/SMBus or Single-Wire Broadcast Interfaces
Min/Max ADC Measurement Logging with Alerts
Reboots on I²C Command with Programmable Delay
Adjustable Input UV/OV Thresholds and Hysteresis
38-Pin 5mm × 7mm QFN Package

Part Models: 6
1ku List Price: Starting From $6.15

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC4283CUHF#PBF	38-Lead QFN (5mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4283CUHF#TRPBF	38-Lead QFN (5mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4283HUHF#PBF	38-Lead QFN (5mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4283HUHF#TRPBF	38-Lead QFN (5mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4283IUHF#PBF	38-Lead QFN (5mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4283IUHF#TRPBF	38-Lead QFN (5mm x 7mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Feb 14, 2025 - 25_0016 Bond Wire Change from Gold to Copper Wire (Notification Only)
		PCN25_0016_Form Material_Report Qualification Results Summary
LTC4283CUHF#PBF	PRODUCTION
LTC4283CUHF#TRPBF	PRODUCTION
LTC4283HUHF#PBF	PRODUCTION
LTC4283HUHF#TRPBF	PRODUCTION
LTC4283IUHF#PBF	PRODUCTION
LTC4283IUHF#TRPBF	PRODUCTION
Mar 15, 2021 - 21_0072 LTC4283 Datasheet Limit Change
		PCN21_0072_Form Material_Report Datasheet Specification Comparison
LTC4283CUHF#PBF	PRODUCTION
LTC4283CUHF#TRPBF	PRODUCTION
LTC4283HUHF#PBF	PRODUCTION
LTC4283HUHF#TRPBF	PRODUCTION
LTC4283IUHF#PBF	PRODUCTION
LTC4283IUHF#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Tools & Simulations

LTspice 1

LTC4283 - Hot Swap Controllers

Models for the following parts are available in LTspice:

LTC4283

Design Tool 1

LTC4283/LTC4284 Design Tool

LTpowerPlay®

LTpowerPlay® is a powerful, Windows-based development environment supporting Linear Technology's Digital Power System Management (PSM) products.

Open Tool

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

LTC4283 Demoboard | -48V, 400W Hot Swap Controller with Energy Monitor and EEPROM

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Product Details

Demonstration circuit 2480A showcases the LTC4283 high power, negative hot swap controller with energy monitor and EEPROM in a −48V, 8A (400W) application. DC2480A offers reliable low cost hot plug solution for high power systems where input steps are imminent.

Included onboard is isolation for power good control pins, to enable downstream power converters. LEDs indicate the presence of −48V input and output as well as the state of both supply feeds and power good signaling. High voltage layout rules are followed throughout for best long-term product reliability.

Headers are provided for three I²C interfaces, providing instant access to voltage, current, power, energy, fault log, and board temperature data.

Resources

DC2480A - Design Files
2.64 M

DC2480A - Schematic
54.09 K

DC2480A - Demo Manual
334.81 K

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