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UCC21521CDW
+BOMDGTL ISO 5.7KV 2CH GT DVR 16SOIC
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ManufacturerTexas Instruments
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Mfr. Part #UCC21521CDW
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In Stock18870
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Specifications
| Attribute | Value |
| PartStatus | Obsolete |
| BaseProductNumber | UCC21521 |
| Technology | Capacitive Coupling |
| NumberofChannels | 2 |
| Voltage-Isolation | 5700Vrms |
| CommonModeTransientImmunity(Min) | 100V/ns |
| PropagationDelaytpLH/tpHL(Max) | 30ns, 30ns |
| PulseWidthDistortion(Max) | 6ns |
| Rise/FallTime(Typ) | 6ns, 7ns |
| Current-OutputHigh,Low | 4A, 6A |
| Voltage-OutputSupply | 14.7V ~ 25V |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package | 16-SOIC (0.295", 7.50mm Width) |
| SupplierDevicePackage | 16-SOIC |
| ApprovalAgency | CQC, CSA, UR, VDE |
| Packaging | Tube |
Overview
Description
UCC21521CDW is TI’s isolated gate-driver IC (part of the UCC2152x family). It provides a galvanically isolated gate-drive signal to switch power MOSFETs/IGBTs in isolated power converters and motor drives.
Key points:
- Isolated input-to-output barrier to safely drive high-side or floating devices
- Logic-compatible input that drives a gated output with sufficient peak current to turn devices on/off quickly
- Built-in protections (e.g., undervoltage lockout, protection against faults/shorts, thermal considerations)
- Suitable for various topologies (flyback, LLC, full-bridge, motor drives, etc.)
- CDW denotes a specific orderable variant/package option; check TI for exact packaging and ratings
For exact electrical specs (isolation rating, input/output supply ranges, peak drive current, propagation delay, and protection thresholds), refer to the TI product page and datasheet.
Key points:
- Isolated input-to-output barrier to safely drive high-side or floating devices
- Logic-compatible input that drives a gated output with sufficient peak current to turn devices on/off quickly
- Built-in protections (e.g., undervoltage lockout, protection against faults/shorts, thermal considerations)
- Suitable for various topologies (flyback, LLC, full-bridge, motor drives, etc.)
- CDW denotes a specific orderable variant/package option; check TI for exact packaging and ratings
For exact electrical specs (isolation rating, input/output supply ranges, peak drive current, propagation delay, and protection thresholds), refer to the TI product page and datasheet.
Features
UCC21521CDW features (concise):
- Isolated dual-gate driver for high-side and low-side MOSFETs (GaN/SiC and conventional MOSFETs).
- Independent HO/LO outputs with fast gate-drive capability to switch large gate charges quickly.
- Reinforced isolation between input and output with strong noise/dv/dt immunity.
- Logic inputs compatible with 3.3V/5V control signals; includes enable control.
- Undervoltage lockout on both sides to prevent false triggering.
- Cross-conduction/shoot-through protection to improve reliability.
- Fault/Status diagnostic outputs for monitoring.
- Protective functions such as overcurrent and overtemperature protection.
- Suitable for high- and low-side drive in bridge configurations.
- Available in the CDW package (compact 8-pin footprint).
Note: please consult the datasheet for exact electrical specs, limits, and application guidelines.
- Isolated dual-gate driver for high-side and low-side MOSFETs (GaN/SiC and conventional MOSFETs).
- Independent HO/LO outputs with fast gate-drive capability to switch large gate charges quickly.
- Reinforced isolation between input and output with strong noise/dv/dt immunity.
- Logic inputs compatible with 3.3V/5V control signals; includes enable control.
- Undervoltage lockout on both sides to prevent false triggering.
- Cross-conduction/shoot-through protection to improve reliability.
- Fault/Status diagnostic outputs for monitoring.
- Protective functions such as overcurrent and overtemperature protection.
- Suitable for high- and low-side drive in bridge configurations.
- Available in the CDW package (compact 8-pin footprint).
Note: please consult the datasheet for exact electrical specs, limits, and application guidelines.
Pinout
- Pin count: 16 pins (DW package)
- Function: Dual-channel isolated gate driver. Provides two independent high-side/low-side gate-drive outputs to drive MOSFETs with galvanic isolation between the logic side and the power/gate-drive domain.
- Function: Dual-channel isolated gate driver. Provides two independent high-side/low-side gate-drive outputs to drive MOSFETs with galvanic isolation between the logic side and the power/gate-drive domain.
Manufacturer
Manufacturer: Texas Instruments (TI).
What kind of company: TI is a U.S.-based global semiconductor company (an integrated device manufacturer) that designs and manufactures analog, power-management, mixed-signal and embedded-processing integrated circuits and related products. Headquartered in Dallas, Texas, it supplies components such as drivers, power ICs, microcontrollers and sensors to industrial, automotive, consumer and communications markets.
What kind of company: TI is a U.S.-based global semiconductor company (an integrated device manufacturer) that designs and manufactures analog, power-management, mixed-signal and embedded-processing integrated circuits and related products. Headquartered in Dallas, Texas, it supplies components such as drivers, power ICs, microcontrollers and sensors to industrial, automotive, consumer and communications markets.
Application
UCC21521CDW is an isolated gate driver. Typical application areas include:
- Driving high-side/low-side MOSFETs or IGBTs in isolated switch‑mode power stages
- Isolated offline/AC‑DC power supplies and telecom/data‑center power modules (flyback, forward, LLC, push‑pull, full‑bridge)
- Automotive, industrial, and renewable‑energy power electronics requiring galvanic isolation
- Motor drives and servo drives needing isolated, fast gate drives
In short: use it wherever you need galvanically isolated, high‑speed gate drive for switching transistors in isolated power systems.
- Driving high-side/low-side MOSFETs or IGBTs in isolated switch‑mode power stages
- Isolated offline/AC‑DC power supplies and telecom/data‑center power modules (flyback, forward, LLC, push‑pull, full‑bridge)
- Automotive, industrial, and renewable‑energy power electronics requiring galvanic isolation
- Motor drives and servo drives needing isolated, fast gate drives
In short: use it wherever you need galvanically isolated, high‑speed gate drive for switching transistors in isolated power systems.
Package
UCC21521CDW is offered in a 16-pin SOIC package (TI suffix "CDW" denotes the commercial SOIC part with tape-and-reel). Verify exact dimensions and land-pattern in the Texas Instruments datasheet.
