UCC37321P

Gate Driver Overview

The UCC37321P is a single-channel, high-speed low-side MOSFET driver manufactured by Texas Instruments in an 8-pin PDIP package. It delivers a peak output current of 9 A with typical rise and fall times of 20 ns under a 10-nF load. The device operates on a supply voltage range of 4 V to 15 V and features TTL/CMOS compatible inputs. It includes an enable pin (ENBL) for logic control and incorporates latch-up and ESD protection circuits.

Gate Driver Feature Summary

• Delivers 9 A peak drive current optimized for driving large MOSFETs during Miller plateau transitions
• Utilizes TrueDrive architecture combining bipolar and CMOS transistors for efficient current delivery at low voltages
• Features an integrated enable function for enhanced operational control

Gate Driver Applications

• Industrial motor drives requiring extreme Miller current handling
• High-speed power switching applications replacing multiple discrete components
• Systems utilizing industrial standard 6-A, 9-A, or 12-A driver form factors

Gate Driver Procurement Notes

Verify the specific suffix 'P' corresponds to the PDIP through-hole package variant rather than SOIC or MSOP options within the UCC3732x family. Confirm that the application requires the inverting logic configuration associated with the UCC37321 designation. Ensure the operating environment remains within the specified temperature range for the PDIP package construction.

Gate Driver Selection Notes

Select this component when a single-channel low-side driver with 9 A peak capability is required. The inverting logic option suits applications where signal inversion matches the system design. Consider the PDIP package for through-hole assembly needs. Evaluate the TrueDrive efficiency benefits for low-voltage operation scenarios compared to standard drivers.

Gate Driver Part Context

This part belongs to the UCC3732x series of high-speed MOSFET drivers from Texas Instruments. The series provides industry-standard pinouts with added enable functionality. Variants include UCC37321 (inverting), UCC37322 (non-inverting), and dual-channel versions like the UCC37324. The UCC37321P specifically denotes the PDIP package version of the single-channel inverting driver.

Gate Driver Replacement Considerations

• UCC37321D (SOIC package)
• UCC37321DGN (MSOP PowerPAD package)