LTC4246

RECOMMENDED FOR NEW DESIGNS

30mΩ RON 12V Octal Electronic Circuit Breaker with SPI Interface

Data Sheet (Rev. SpD) Product Selection Table

Part Models: 3
1ku List Price: price unavailable

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Overview

Eight Channels – 8× SPST
Circuit Breaker Threshold Up to 1.5A
Programmable in 50mA Increments
20% Accurate Threshold
30mΩ On Resistance

Operating Range: 0V to 13.2V
SPI Interface with Daisy-Chain Mode
Common Open-Drain FAULT Status Output
24-Lead 3mm × 5mm QFN

The LTC4246 contains eight switches, each with an independent circuit breaker function. It is particularly well suited for extremely space constrained designs. Each switch can operate completely autonomously or be arbitrarily grouped with other switches that will respond together to the fault of any single device within its group. Optionally, channel grouping may be extended to multiple LTC4246 devices by selecting the FIN# (fault input) pin as part of a channel group. A required bias supply between 2.5V to 5V allows the switches to independently operate from 13.2V down to 0V. The LTC4246 provides an SPI serial interface to enable, disable and configure the timing and current thresholds of each channel as well as provide status to each channel’s fault state.

A common open-drain FAULT status output indicates if any switch has opened due to a circuit breaker event.

Applications

ATE Wafer Probe Electronics
Scope Probe Protection
Industrial Control
Relay Replacement

Part Models: 3
1ku List Price: price unavailable

Documentation

Data Sheet 1

LTC4246: 30mΩ RON 12V Octal Electronic Circuit Breaker with SPI Interface Data Sheet (Rev.SpD) 07/25/2024

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
LTC4246AV#PBF	LGA/CASON/CH ARRY SO NO LD	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4246HV#PBF	24-Lead LQFN (3mm x 5mm x 0.95mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4246IV#PBF	24-Lead LQFN (3mm x 5mm x 0.95mm)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jul 7, 2021 - 21_0134 LTC4246 Datasheet Limit Change
		PCN21_0134_Form Material_Report Datasheet Specification Comparison
LTC4246HV#PBF	PRODUCTION
LTC4246IV#PBF	PRODUCTION

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

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LTC4246

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