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

Frequently Asked Questions

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.

Which authorised distributors for UCC21521DW have stock available?

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

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