UCC21521DW Part Information

Details for UCC21521DW by Texas Instruments

Electronic & Electrical Components>Semiconductors - ICs>Driver & Interface ICs

Part Description

The UCC21521 is an isolated dual-channel gate driver with 4-A source and 6-A sink peak current. It is designed to drive power MOSFETs, IGBTs, and SiC MOSFETs up to 5-MHz with best-in-class propagation delay and pulse-width distortion. The input side is isolated from the two output drivers by a 5.7-kVRMS reinforced isolation barrier, with a minimum of 100-V/ns common-mode transient immunity (CMTI). Internal functional isolation between the two secondary-side drivers allows a working voltage of up to 1500 VDC. This driver can be configured as two low-side drivers, two high-side drivers, or a half-bridge driver with programmable dead time (DT). The EN pin pulled low shuts down both outputs simultaneously and allows for normal operation when left open or pulled high. As a fail-safe measure, primary-side logic failures force both outputs low. The device accepts VDD supply voltages up to 25 V. A wide input VCCI range from 3 V to 18 V makes the driver suitable for interfacing with both analog and digital controllers. All the supply voltage pins have under voltage lock-out (UVLO) protection. With all these advanced features, the UCC21521 enables high efficiency, high power density, and robustness in a wide variety of power applications.

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Part Features

  • 3-V to 18-V Input VCCI Range to Interface with Both Digital and Analog Controllers
  • 4-A Peak Source, 6-A Peak Sink Output
  • Common-Mode Transient Immunity (CMTI) Greater than 100 V/ns
  • Fast Enable for Power Sequencing
  • Isolation Barrier Life >40 Years
  • Operating Temperature Range u201340 to +125u00b0C
  • Programmable Overlap and Dead Time
  • Rejects Input Pulses and Noise Transients Shorter than 5 ns
  • Safety-Related and Regulatory Approvals:
  • Surge Immunity up to 12.8 kV
  • Switching Parameters: u2013 19-ns Typical Propagation Delay u2013 10-ns Minimum Pulse Width u2013 5-ns Maximum Delay Matching u2013 5-ns Maximum Pulse-Width Distortion
  • TTL and CMOS Compatible Inputs
  • Universal: Dual Low-Side, Dual High-Side or Half- Bridge Driver
  • Up to 25-V VDD Output Drive Supply u2013 5-V, 8-V, 12-V VDD UVLO Options
  • Wide Body SOIC-16 (DW) Package

Part Specifications

Driver Configuration Half Bridge
Peak Output Current 6A
Supply Voltage Min 3V
Supply Voltage Max 18V
Driver Case Style WSOIC
No. of Pins 16Pins
Input Delay -
Output Delay -
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 2 - 1 year
SVHC No SVHC (27-Jun-2018)
RoHS Compliant

Alternative Part Descriptions

  • ISOLATED GATE DRIVER, 2-CH, 6A, WSOIC-16; Driver Configuration:Half Bridge; Peak Output Current:6A; Supply Voltage Min:3V; Supply Voltage Max:18V; Driver Case Style:WSOIC; No. of Pins:16Pins; Input Delay:-; Output Delay:-; Operating RoHS Compliant: Yes | Newark Electronics
  • 4-A/6-A, 5.7-kVRMS dual-channel isolated gate driver with 8-V UVLO, dual input, enable pin | Texas Instruments

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Where can I find additional details, specifications and documents for a UCC21521DW?

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What category does UCC21521DW fall under?

The UCC21521DW is listed under Electronic & Electrical Components > Semiconductors - ICs > Driver & Interface ICs.

Can I view similar or alternative parts?

You can view similar parts to UCC21521DW when available in the Driver & Interface ICs range under the specifications section at the bottom of the details page.

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Is the UCC21521DW RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Farnell.

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Authorised distributors including Newark Electronics and Texas Instruments have stock available or on a lead time for UCC21521DW.

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