text.skipToContent text.skipToNavigation

UCC21521DW ACTIVE

4-A/6-A, 5.7-kVRMS dual-channel isolated gate driver with 8-V UVLO, dual input, enable pin

Inventory: 3,280
 

Quality information

RoHS Yes
REACH Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-2-260C-1 YEAR
Material content View
DPPM / MTBF / Fit rate View
Qualification summary View
Ongoing reliability monitoring View
Device marking View

Packaging information

Package | Pins Package qty | Carrier Operating temperature range (°C)
SOIC (DW) | 16 40 | TUBE
-40 to 125
Package | Pins SOIC (DW) | 16
Package qty | Carrier 40 | TUBE
Operating temperature range (°C) -40 to 125
View TI packaging information

Features for the UCC21521

  • Universal: Dual Low-Side, Dual High-Side or Half-Bridge Driver
  • Operating Temperature Range –40 to +125°C
  • Switching Parameters:
    • 19-ns Typical Propagation Delay
    • 10-ns Minimum Pulse Width
    • 5-ns Maximum Delay Matching
    • 5-ns Maximum Pulse-Width Distortion
  • Common-Mode Transient Immunity (CMTI) Greater than 100 V/ns
  • Surge Immunity up to 12.8 kV
  • Isolation Barrier Life >40 Years
  • 4-A Peak Source, 6-A Peak Sink Output
  • TTL and CMOS Compatible Inputs
  • 3-V to 18-V Input VCCI Range to Interface with Both Digital and Analog Controllers
  • Up to 25-V VDD Output Drive Supply
    • 5-V, 8-V, 12-V VDD UVLO Options
  • Programmable Overlap and Dead Time
  • Rejects Input Pulses and Noise Transients Shorter than 5 ns
  • Fast Enable for Power Sequencing
  • Wide Body SOIC-16 (DW) Package
  • Safety-Related and Regulatory Approvals:
    • 8000-VPK Isolation per DIN V VDE V 0884-10 (VDE V0884-10):2006-12
    • 5700-VRMS Isolation for 1 Minute per UL 1577
    • CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 60601-1 End Equipment Standards (Planned)
    • CQC Certification per GB4943.1-2011 (Planned)

Description for the UCC21521

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.

Pricing


Qty Price (USD)
1-99 $3.202
100-249 $2.610
250-999 $2.051
1,000+ $1.740

Additional package qty | carrier options

Package qty | Carrier 2,000 | LARGE T&R
Inventory 31,455
Qty | Price (USD) 1ku | $1.450 1-99 $2.668 100-249 $2.175 250-999 $1.710 1,000+ $1.450
Custom reel may be available