SI82398BD-IS

Isolators - Gate Drivers Overview

The SI82398BD-IS is a dual-channel, galvanically isolated gate driver from Skyworks Solutions. It utilizes capacitive coupling technology with a silicon dioxide (SiO2) isolation barrier to provide high reliability and electromagnetic immunity. The device features an 8 V Under-Voltage Lockout (UVLO) for the high-side output and supports supply voltages up to 30 V, enabling effective driving of IGBTs and SiC devices. Key electrical parameters include a maximum propagation delay of 40 ns, rise/fall times of 12 ns, and peak output currents of 2 A (high-side) and 4 A (low-side). It operates within a temperature range of -40°C to +125°C and is housed in a 16-pin SOIC-Wide package.

Isolators - Gate Drivers Feature Summary

• Capacitive coupling isolation using silicon dioxide barrier for high common-mode transient immunity
• Dual-channel configuration with independent high-side and low-side outputs
• Integrated 8 V under-voltage lockout for enhanced switching protection
• Supports wide input voltage ranges suitable for bipolar power supplies

Isolators - Gate Drivers Applications

• Industrial power supplies
• Photovoltaic inverters
• On-board chargers for electric vehicles
• DC motor control systems
• Automotive air conditioning and heating systems

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'IS' corresponds to the industrial grade and tube packaging variant. Confirm that the 8 V UVLO setting matches the target gate drive requirements. Ensure the 16-pin SOIC-Wide footprint aligns with the PCB layout design. Check RoHS compliance status as indicated in official documentation before finalizing procurement orders.

Isolators - Gate Drivers Selection Notes

Select this component when high common-mode noise immunity is required in noisy environments. The 8 V UVLO is distinct from other variants offering 6 V or 12 V options. Consider the 4 A low-side drive capability for faster switching transitions. Verify compatibility with TTL logic inputs if interfacing directly with standard microcontrollers without level shifting.

Isolators - Gate Drivers Part Context

This part belongs to the Si8239x family of isolated gate drivers. It shares architectural similarities with automotive-grade counterparts like the SI82398AD series but is designated for industrial applications. The family emphasizes robust isolation performance and fast switching speeds for modern power electronics.

Isolators - Gate Drivers Replacement Considerations

Direct substitutes within the same family include SI82398AD-IS (automotive grade) or variants with different UVLO settings such as SI82398AD4-IS3 (6 V UVLO) or SI82398CD-IS3R (12 V UVLO). Pin compatibility must be verified against the specific package width (SOIC-Wide vs Narrow) of alternative parts.