UCC23511BDWY

Overview

The UCC23511BDWY is a single-channel, opto-compatible reinforced isolated gate driver manufactured by Texas Instruments. It features a 5.7-kVRMS isolation rating and provides a peak output current of 1.5 A source and 2 A sink. The device operates within an ambient temperature range of -40°C to +125°C and is housed in a 6-pin SOIC (DWY) package. Key electrical parameters include a maximum propagation delay of 105 ns, a rise time of 28 ns, and a fall time of 25 ns. The power dissipation is rated at 750 mW.

Feature Summary

• Provides pin-to-pin compatibility as a drop-in upgrade for traditional optocoupler-based isolated gate drivers.
• Utilizes capacitive coupling technology to deliver reinforced insulation with high common-mode transient immunity.
• Features an opto-compatible input interface that simplifies design transitions from legacy discrete optocoupler solutions.

Applications

• Gate driving for Insulated Gate Bipolar Transistors (IGBTs)
• Gate driving for Silicon Carbide (SiC) MOSFETs
• Gate driving for standard Silicon MOSFETs

Procurement Notes

Verify the End-of-Life (EOL) status before procurement, as the UCC23511BDWY has been identified as obsolete or nearing obsolescence. Confirm availability through authorized distributors, noting that stock may be limited or restricted. Ensure that any substitute components maintain the required 5.7-kVRMS isolation rating and SOIC-6 package dimensions to preserve board layout integrity.

Selection Notes

Select this component when a direct replacement for existing optocoupler designs is required without altering the printed circuit board footprint. It is suitable for applications demanding high reliability and improved performance metrics over traditional optical isolation. Consider the specific peak current requirements of the target switch, ensuring they remain within the 1.5 A source and 2 A sink limits defined by the datasheet.

Part Context

This part belongs to the UCC2351x family of isolated gate drivers from Texas Instruments. The family includes variants such as the UCC23511, UCC23512, and UCC23513, which share similar architectural features but differ in peak output current capabilities. The UCC23511 specifically targets lower-power switching applications compared to its higher-current counterparts while maintaining the same compact SOIC-6 form factor.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation due to the component's obsolete status. Designers should evaluate alternative Texas Instruments isolated gate drivers with comparable isolation ratings and package types, ensuring functional equivalence in terms of input compatibility and output drive strength.

FAQ

What is the isolation voltage rating of the UCC23511BDWY?

The UCC23511BDWY offers a reinforced isolation rating of 5.7 kVRMS.

Does the UCC23511BDWY support SiC MOSFET applications?

Yes, the datasheet explicitly lists SiC MOSFETs as a supported application alongside IGBTs and standard MOSFETs.

What is the maximum propagation delay for this device?

The maximum propagation delay is specified as 105 ns.