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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：6.5V ~ 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 UCC21550ADWKR is a dual-channel optically isolated gate driver from Texas Instruments, housed in a 14-SOIC package. It features a maximum propagation delay of 45 ns, with rise and fall times of 8 ns each. The device supports an operating temperature range from -40°C to +150°C and has a power dissipation rating of 950 mW. It provides 1500 Vrms insulation voltage and delivers output currents of 4 A and 6 A. The supply voltage range for the driver is 6.5 V to 25 V.
Feature Summary
- Dual-channel optical isolation for independent signal transmission
- High-speed switching capabilities with low propagation delay
- Wide operating temperature range suitable for harsh environments
- Programmable dead time functionality
Applications
- Industrial motor drives
- Inverter systems
- Power supply designs requiring galvanic isolation
Procurement Notes
Verify the specific suffix 'DWKR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 14-SOIC footprint matches the target PCB layout dimensions. Ensure the thermal management strategy accounts for the 950 mW power dissipation rating under maximum load conditions to maintain reliability within the specified temperature range.
Selection Notes
Select this component when high-speed dual-channel isolation is required with a wide temperature tolerance up to 150°C. It is suitable for applications needing programmable dead time to prevent shoot-through in half-bridge configurations. Consider the 1500 Vrms isolation barrier for safety-critical circuits where galvanic separation between control and power stages is mandatory.
Part Context
This part belongs to the UCC21550 series of dual-channel isolated gate drivers. It is designed to drive power switches such as IGBTs and MOSFETs in high-frequency applications. The series emphasizes robust isolation performance and fast switching speeds to minimize power losses in modern power electronics systems.
Replacement Considerations
Check for UCC21550-Q1 variants if automotive qualification is needed. Verify pinout compatibility with other SOIC-14 isolated drivers before substitution.
