LTC4213ITS8#TRMPBF

Specialized ICS Overview

The LTC4213ITS8#TRMPBF is a low-voltage electronic circuit breaker from Analog Devices, designed for overcurrent protection without requiring an external sense resistor. It operates within a bias supply voltage range of 2.3V to 6V and features three selectable trip thresholds: 25mV, 50mV, and 100mV. The device provides dual-level overcurrent protection with a slow comparator response time of 16µs and a fast comparator response time of 1µs. An internal high-side driver controls an external N-channel MOSFET, while the ON pin manages fault reset and power control. The READY pin signals when the circuit breaker is armed.

Specialized ICS Feature Summary

• No RSENSE™ technology eliminates the need for external sense resistors, reducing cost and voltage loss.
• Dual-level overcurrent protection with selectable thresholds (25mV, 50mV, 100mV) via the ISEL pin.
• Fast 1µs response time for severe overload conditions and 16µs delay for standard faults.
• Integrated high-side gate driver with undervoltage lockout (UVLO) at 2.07V.

Specialized ICS Applications

• Hot board insertion systems
• High-side switch applications
• Electronic circuit breakers in low-voltage environments

Specialized ICS Procurement Notes

Verify the specific suffix #TRMPBF indicates a mini tape and reel packaging option containing 500 units. Confirm that the 'I' grade designation corresponds to the industrial temperature range of –40°C to 85°C. Ensure the TSOT-23-8 package matches the target PCB footprint requirements before finalizing procurement orders.

Specialized ICS Selection Notes

Select this component for applications requiring precise current limiting without the power penalty of sense resistors. The ISEL pin allows dynamic threshold adjustment; grounding it sets 25mV, floating it sets 50mV, and tying it to VCC sets 100mV. Ensure the external MOSFET's RDS(ON) characteristics align with the desired current limit calculations based on the selected threshold.

Specialized ICS Part Context

This part belongs to the LTC4213 series of No RSENSE electronic circuit breakers. It is functionally similar to the LTC4213IDDB but utilizes a TSOT-23-8 package instead of a DFN package. The 'I' suffix denotes the industrial temperature grade, distinguishing it from the commercial 'C' grade variant which operates between 0°C and 70°C.

Specialized ICS Replacement Considerations

The LTC4213CTS8#TRPBF serves as a direct functional replacement if a commercial temperature grade (0°C to 70°C) is acceptable. For DFN package alternatives, the LTC4213IDDB#TRPBF offers identical electrical performance in an 8-lead plastic DFN format.