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Product Detailed Parameters
- Description：4A/6A, 5-kVRMS dual-channel
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Technology：Capacitive Coupling
- Number of Channels：2
- Voltage - Isolation：5000Vrms
- Propagation Delay tpLH / tpHL (Max)：45ns, 45ns
- Pulse Width Distortion (Max)：5ns
- Rise / Fall Time (Typ)：8ns, 8ns
- Current - Output High, Low：4A, 6A
- Current - Peak Output：4A, 6A
- Voltage - Forward (Vf) (Typ)：-
- Voltage - Output Supply：13.5V ~ 25V
- Grade：-
- Qualification：-
- Operating Temperature：-40°C ~ 150°C
- Mounting Type：Surface Mount
- Package / Case：14-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：14-SOIC
- Common Mode Transient Immunity (Min)：125V/ns
- Approval Agency：CQC, CSA, UL, VDE
- Current - DC Forward (If) (Max)：-
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Overview
The UCC21550CDWKR is a dual-channel reinforced isolated gate driver from Texas Instruments, housed in a 14-pin SOIC package. It provides peak output currents of 4A and 6A for the low-side and high-side channels, respectively. The device features a 5-kVRMS isolation rating with a maximum propagation delay of 45 ns. Operating temperatures range from -40°C to +150°C, with power dissipation up to 950 mW. Rise and fall times are specified at 8 ns.
Feature Summary
- Dual-channel architecture with independent disable functionality
- Programmable deadtime control to prevent shoot-through
- Reinforced optical isolation for safety-critical applications
Applications
- Industrial motor drives
- Inverter systems
- Switched-mode power supplies
Procurement Notes
Verify the specific suffix 'CDWKR' against the manufacturer's current ordering guide to ensure compatibility with required packaging formats and temperature grades. Confirm that the SOIC-14 footprint matches the design layout. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing procurement specifications.
Selection Notes
Select this component when dual-channel isolation with programmable deadtime is required. Ensure the system voltage does not exceed the 5-kVRMS isolation limit. Verify that the 4A/6A drive strength aligns with the target power switch requirements. Check thermal constraints given the 950 mW power dissipation capability in the SOIC-14 package.
Part Context
This part belongs to the UCC21550 family of reinforced isolated gate drivers. It shares core functionalities with variants like the UCC21550ADWKR but differs in specific manufacturing or qualification details indicated by the suffix. The series is designed for high-reliability applications requiring robust galvanic isolation between control and power stages.
Replacement Considerations
Direct substitutes include other UCC21550 variants such as UCC21550ADWKR, provided the suffix differences do not alter functional parameters. Verify pinout compatibility and isolation ratings before substitution.
