SI8275GA-IM1R

Isolators - Gate Drivers Overview

The SI8275GA-IM1R is a dual-channel isolated gate driver from Skyworks Solutions, utilizing RF coupling technology for galvanic isolation. It features a 1000Vrms isolation voltage and supports output supply voltages from 4.2V to 30V. The device provides peak output currents of 1.8A (high) and 4A (low), with maximum propagation delays of 75ns for both rising and falling edges. Pulse width distortion is limited to 8ns, while typical rise and fall times are 10.5ns and 13.3ns respectively. It operates within a temperature range of -40°C to 125°C and is housed in a 14-QFN (5x5) package.

Isolators - Gate Drivers Feature Summary

• Utilizes silicon dioxide-based RF coupling for high reliability and immunity to magnetic fields
• Provides high common-mode transient immunity to prevent false triggering in noisy environments
• Integrates undervoltage lockout (UVLO) on both input and output sides for safe operation

Isolators - Gate Drivers Applications

• Industrial motor control systems requiring reliable gate drive signals
• Inverter and converter topologies in renewable energy applications
• High-frequency switching power supplies and DC-DC converters

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'IM1R' corresponds to the tape-and-reel packaging variant, distinct from tray-packaged versions like IM1. Confirm that the 1000Vrms isolation rating meets system safety requirements, as other variants in the series offer higher ratings. Check current availability status, as distribution channels may indicate restricted supply or end-of-life notifications for this specific part number.

Isolators - Gate Drivers Selection Notes

Select this component when a dual-channel driver with moderate isolation voltage (1kV) and high peak current capability is required. Compare against SI8275GBD variants if higher isolation (2.5kV) is necessary. Ensure the 75ns propagation delay aligns with the switching frequency constraints of the target application. Verify compatibility with the 14-QFN footprint during PCB layout design.

Isolators - Gate Drivers Part Context

This part belongs to the Si827x family of isolated gate drivers, which leverage proprietary RF coupling technology instead of traditional capacitive or magnetic isolation. This family offers improved robustness against EMI and ground bounce issues commonly found in high-power switching applications. The GA suffix typically denotes the 1000Vrms isolation class within this product line.

Isolators - Gate Drivers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.