HT0740LG-G

Isolators - Gate Drivers Overview

The HT0740LG-G is a high-voltage isolated MOSFET gate driver manufactured by Microchip Technology. It features capacitive coupling technology and operates within a supply voltage range of 500 mV to 5.5 V. The device provides a single high-side output with an output voltage of 8.5 V. Key timing parameters include a maximum turn-on delay of 50 µs, a maximum turn-off delay of 150 µs, a rise time of 650 µs, and a fall time of 3 ms. It functions in temperatures from -40°C to +85°C and is housed in an SOIC-8 surface-mount package.

Isolators - Gate Drivers Feature Summary

• Capacitive coupling isolation for high-voltage applications
• Single-channel high-side MOSFET driving capability
• Low quiescent current operation

Isolators - Gate Drivers Applications

• Compact isolated power supplies
• High-voltage switching circuits
• Industrial motor control interfaces

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix LG-G against official Microchip documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with system isolation requirements and operating temperature ranges before procurement. Confirm moisture sensitivity level handling procedures are available for the SOIC-8 package.

Isolators - Gate Drivers Selection Notes

Select this component when a single-channel, high-voltage isolated driver is required for compact designs. The capacitive coupling method offers robust noise immunity compared to magnetic alternatives. Verify that the 400V isolation rating meets the circuit's safety standards and that the 5.5V maximum supply voltage aligns with the logic interface.

Isolators - Gate Drivers Part Context

This part belongs to the HT0740 series of high-voltage isolated MOSFET drivers. It is designed for applications requiring galvanic isolation between low-voltage control logic and high-voltage power stages. The series utilizes Supertex-derived technology now managed by Microchip Technology.

Isolators - Gate Drivers Replacement Considerations

Consult official Microchip substitution guides for verified equivalents. Generic replacements may not match the specific capacitive coupling characteristics or isolation voltage ratings.