LTC4249

RECOMMENDED FOR NEW DESIGNS

65V Dual Electronic Circuit Breaker with Current Monitors

Data Sheet (Rev. A) Product Selection Table

Part Models: 4
1ku List Price: Starting From $2.56

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Part Details

High Voltage Dual SPST, Current Sharing Allowed
5% Accurate Analog Current Monitor Outputs
Adjustable Circuit Breaker Thresholds to 1.2A
Filtered (50μs) Primary OC Threshold
Fast (2μs) Secondary OC Threshold
75mΩ Integrated Switches

Automatic Inrush Control
Short-Circuit Protection
Precision Enable Inputs
Open-Drain, Ready Status Outputs
16-Lead 3mm × 3mm LQFN and 12-Lead (Skipped Lead) 3mm × 4mm LQFN

Part Models: 4
1ku List Price: Starting From $2.56

Documentation

Data Sheet 1

LTC4249: 65V Dual Electronic Circuit Breaker with Current Monitors Data Sheet (Rev.A) 09/15/2021

User Guide 1

DC2733A - Demo Manual (Rev.A) 09/29/2021

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
LTC4249AV-1#PBF	LGA/CASON/CH ARRY SO NO LD	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4249AV-2#PBF	LGA/CASON/CH ARRY SO NO LD	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4249AV2-1#PBF	20-Terminal LGA (3mm x 4mm x 0.95mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys
LTC4249AV2-2#PBF	20-Terminal LGA (3mm x 4mm x 0.95mm)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

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

Tools & Simulations

LTspice 1

LTC4249 - Power Monitor, Control, and Protection

Models for the following parts are available in LTspice:

LTC4249

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

LTC4249 | 65V Dual Electronic Circuit Breaker with Current Monitors

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Features and Benefits

Demonstrate dual LTC4249 circuit breaker channels
Monitor each channel current with IMON
Gang multiple parallel channels for larger currents
Convenient on-board pushbutton enable control

Product Details

The DC2733 is a demonstration system for the LTC4249, 65V Dual Electronic Circuit Breaker with Current Monitors. The LTC4249 provides dual independent 1.2A, 75mΩ circuit breakers that can function independently or work together in parallel. Each circuit breaker channel has its own enable, ready, and IMON pins.

The DC2733 demo board gives access to both channels of the LTC4249, including the independent RDY and IMON outputs and the EN inputs. Resistors at the IMON pins set the circuit breaker thresholds as well as the IMON current-to-voltage gains. The IC draws power from the IN1 input.

Resources

DC2733A - Demo Manual (Rev.A)
785.61 K

DC2733A - Schematic
59.31 K

DC2733A - Design Files
1.81 M

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