LTC7000IMSE#PBF

Overview

The LTC7000IMSE#PBF is a high-side N-channel MOSFET gate driver from Analog Devices, designed for static switching applications. It operates with an input supply voltage range of 3.5V to 135V and supports a bias voltage of 3.5V to 15V. The device features fast switching characteristics with a rise time of 90ns and a fall time of 40ns. It includes integrated protection mechanisms such as overcurrent detection via an external sense resistor, adjustable current limiting, and an automatic retry timer. The component is housed in a 16-lead MSOP package with an exposed pad and functions within a junction temperature range of -40°C to +125°C.

Feature Summary

• Provides 100% duty cycle capability for indefinite on-state operation of external N-channel MOSFETs through an internal charge pump.
• Integrates overcurrent protection that monitors the voltage across an external series sense resistor to detect faults and trigger shutdown.
• Features a low-impedance output stage capable of driving large gate capacitances with minimal transition times.
• Includes diagnostic capabilities such as a drain-open fault flag and adjustable turn-on slew rate control.

Applications

• High-frequency static power switching circuits
• Automotive load switching systems
• Industrial motor control interfaces
• Power distribution units requiring high-side protection

Procurement Notes

Verify availability status carefully as this part may be subject to limited supply or factory special order constraints. Confirm the specific suffix #PBF indicates lead-free packaging compliant with RoHS standards. Ensure the ordering information matches the exact MSOP-16 package variant required for your PCB layout. Cross-reference the datasheet revision history for any recent epoxy or marking changes that might affect mechanical fit.

Selection Notes

Select this driver when a single-channel high-side solution with integrated current monitoring is required. It is suitable for applications needing precise control over turn-on speed to minimize EMI. Consider the LTC7000-1 variant if fewer pins are needed for higher voltage isolation spacing. Evaluate the thermal performance requirements based on the exposed pad design for adequate heat dissipation in dense layouts.

Part Context

This component belongs to the LTC7000 family of high-side gate drivers manufactured by Analog Devices. It is specifically engineered to drive N-channel MOSFETs in high-voltage environments up to 150V peak. The IMSE#PBF designation identifies the industrial temperature grade version in a plastic small outline package. It serves as a robust interface between low-voltage logic controllers and high-power switching elements.

Replacement Considerations

LTC7000IMSE-1#PBF offers similar functionality with a modified pinout for enhanced high-voltage isolation spacing. LTC7000EMSE#PBF represents the extended temperature grade variant of the same package. Verify pin compatibility and electrical specifications before substituting with other high-side drivers from different manufacturers.

FAQ

How does the LTC7000 handle overcurrent conditions?

It detects overcurrent by monitoring the voltage across an external sense resistor connected in series with the MOSFET drain. Upon detecting a fault, it shuts down the switch and initiates an automatic retry sequence determined by an external timing capacitor.

What is the maximum operating voltage for this driver?

The device operates with an input supply voltage up to 135V, with an absolute maximum rating of 150V peak.

Does the LTC7000 support 100% duty cycle operation?

Yes, the internal charge pump ensures continuous gate drive voltage, allowing the external N-channel MOSFET to remain fully on indefinitely.