UCC27325PG4

Gate Driver Overview

The UCC27325PG4 is a dual-channel, high-speed low-side MOSFET gate driver manufactured by Texas Instruments. It features a TrueDrive output architecture combining bipolar and CMOS transistors to deliver a peak output current of 4 A for both sourcing and sinking. The device operates within a supply voltage range of 4.5 V to 15 V and supports TTL/CMOS logic inputs. Typical propagation delays are 25 ns for input fall and 35 ns for input rise, with rise and fall times of 20 ns and 15 ns respectively under an 1.8-nF load. It is housed in an 8-pin PDIP package and rated for operation from -40°C to +125°C.

Gate Driver Feature Summary

• TrueDrive output architecture utilizing parallel bipolar and CMOS transistors for efficient current sourcing and sinking at low supply voltages.
• Dual non-inverting outputs providing independent control for two low-side power switches.
• Hysteretic logic input configuration designed to minimize cross-conduction and shoot-through currents during switching transitions.

Gate Driver Applications

• High-frequency DC-DC converter topologies requiring robust low-side drive.
• Motor control systems driving power MOSFETs or IGBTs.
• Inverter circuits demanding fast switching speeds and high peak current capability.

Gate Driver Procurement Notes

Verify the specific suffix 'G4' corresponds to lead-free packaging and RoHS compliance as defined in the manufacturer's datasheet. Confirm that the PDIP-8 package variant matches the required through-hole mounting specifications for the target PCB design. Ensure input logic levels align with the hysteretic threshold characteristics specified for this component series.

Gate Driver Selection Notes

Select this component when a dual low-side driver with high peak current capability is required for applications where minimizing shoot-through current is critical. The TrueDrive architecture offers superior performance compared to standard CMOS drivers, particularly at lower supply voltages. Consider the PDIP-8 package if through-hole assembly is mandated by the manufacturing process or mechanical constraints.

Gate Driver Part Context

This part belongs to the UCC2732x series of dual high-speed low-side MOSFET drivers. The series provides industry-standard pinouts and includes variants with different output configurations such as inverting and non-inverting options. The UCC27325 specifically denotes the dual non-inverting configuration, distinguishing it from other members like the UCC27324 which may offer different logical arrangements.

Gate Driver Replacement Considerations

Compatible alternatives within the same family include the UCC27324 and UCC37325, provided the logical inversion requirements match the application needs. Verify that any substitute maintains the 4 A peak current rating and compatible operating temperature range. Cross-reference package dimensions to ensure mechanical compatibility if replacing on existing hardware.