LTC4213IDDB#TRPBF

Specialized ICS Overview

The LTC4213IDDB#TRPBF is a No RSENSE Electronic Circuit Breaker designed for high-side switching applications. It eliminates the need for external sense resistors by sensing voltage across an external N-channel MOSFET's drain and source terminals. The device features dual-level overcurrent protection with selectable trip thresholds of 25mV, 50mV, or 100mV via the ISEL pin. A fast comparator provides 1µs response time, while a slow comparator offers 16µs delay. Operating from a bias supply (VCC) of 2.3V to 6V, it includes an internal high-side driver, undervoltage lockout, and a READY status output.

Specialized ICS Feature Summary

• No RSENSE™ technology: Senses current via external MOSFET RDS(ON), reducing cost and switch path losses.
• Dual-level fault protection: Fast comparator trips in 1µs; slow comparator trips in 16µs.
• Selectable thresholds: Three circuit breaker settings (25mV, 50mV, 100mV) configured via the ISEL pin.
• Integrated control: Internal charge pump drives external N-channel FET; ON pin controls start/reset; READY signals armed state.

Specialized ICS Applications

• Hot board insertion systems requiring controlled power-up sequencing.
• High-side electronic circuit breakers for load protection.
• Power distribution units needing precise overcurrent management without sense resistors.

Specialized ICS Procurement Notes

Verify the suffix #TRPBF indicates Tape & Reel packaging. Confirm the IDDB variant corresponds to the Industrial temperature grade (-40°C to +85°C). Ensure the 8-WFDFN Exposed Pad package matches the design footprint. Cross-reference the manufacturer part number with official Analog Devices documentation to confirm availability and authenticity.

Specialized ICS Selection Notes

Select based on required bias voltage range (2.3V to 6V) and desired current limit threshold (25mV, 50mV, or 100mV). Choose the Industrial grade (I) for operation between -40°C and +85°C. Ensure the external N-channel MOSFET VGS rating supports the internal gate drive clamp up to 8V. Verify that the load supply can handle inrush currents during startup before the circuit breaker arms.

Specialized ICS Part Context

This component belongs to the LTC4213 series of No RSENSE Electronic Circuit Breakers. The IDDB designation specifies the Industrial temperature range and the 8-lead DFN package. It serves as a specialized PMIC for managing power delivery and protecting loads in hot-swap environments.

Specialized ICS Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices for direct replacements or cross-references within the LTC42xx family.