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Isolierte Gate-Treiber

UCC21521

AKTIV

5,7 kVrms, 4 A/6 A zweikanaliger isolierter Gate-Treiber mit Doppeleingang, Enable, 8 V UVLO &

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UCC21521

AKTIV
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Produktdetails

Number of channels 2 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 5700 Working isolation voltage (VIOWM) (Vrms) 2121 Transient isolation voltage (VIOTM) (VPK) 8000 Power switch GaNFET, IGBT, MOSFET, SiCFET Peak output current (A) 6 Features Enable, Programmable dead time Output VCC/VDD (max) (V) 25 Output VCC/VDD (min) (V) 6.5, 9.2, 14.7 Input supply voltage (min) (V) 3 Input supply voltage (max) (V) 18 Propagation delay time (µs) 0.019 Input threshold CMOS, TTL Operating temperature range (°C) -40 to 125 Rating Catalog Bootstrap supply voltage (max) (V) 2121 Rise time (ns) 6 Fall time (ns) 7 Undervoltage lockout (typ) (V) 5, 8, 12
Number of channels 2 Isolation rating Reinforced Withstand isolation voltage (VISO) (Vrms) 5700 Working isolation voltage (VIOWM) (Vrms) 2121 Transient isolation voltage (VIOTM) (VPK) 8000 Power switch GaNFET, IGBT, MOSFET, SiCFET Peak output current (A) 6 Features Enable, Programmable dead time Output VCC/VDD (max) (V) 25 Output VCC/VDD (min) (V) 6.5, 9.2, 14.7 Input supply voltage (min) (V) 3 Input supply voltage (max) (V) 18 Propagation delay time (µs) 0.019 Input threshold CMOS, TTL Operating temperature range (°C) -40 to 125 Rating Catalog Bootstrap supply voltage (max) (V) 2121 Rise time (ns) 6 Fall time (ns) 7 Undervoltage lockout (typ) (V) 5, 8, 12
SOIC (DW) 16 106.09 mm² 10.3 x 10.3
  • 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
    • 6-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 certifications:
    • 8000-VPK reinforced isolation per DIN V VDE V 0884-11:2017-01
    • 5700-VRMS Isolation for 1 minute per UL 1577
    • CSA certification per IEC 60950-1, IEC 62368-1, IEC 61010-1 and IEC 60601-1 end equipment standards
    • CQC certification per GB4943.1-2011
  • 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
    • 6-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 certifications:
    • 8000-VPK reinforced isolation per DIN V VDE V 0884-11:2017-01
    • 5700-VRMS Isolation for 1 minute per UL 1577
    • CSA certification per IEC 60950-1, IEC 62368-1, IEC 61010-1 and IEC 60601-1 end equipment standards
    • CQC certification per GB4943.1-2011

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.

Every 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.

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.

Every 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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Technische Dokumentation

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Typ Titel Datum
* Data sheet UCC21521 4-A, 6-A, 5.7-kVRMS Isolated Dual-Channel Gate Driver with Enable datasheet (Rev. B) PDF | HTML 08 Dez 2021
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. S) 29 Feb 2024
Certificate UCC215xx CQC Certificate of Product Certification 17 Aug 2023
Certificate UCC21520 CQC Certificate of Product Certification (Rev. A) 16 Aug 2023
Certificate UL Certification E181974 Vol 4. Sec 7 (Rev. C) 02 Dez 2022
Application brief The Use and Benefits of Ferrite Beads in Gate Drive Circuits PDF | HTML 16 Dez 2021
Certificate FPPT2 - Nonoptical Isolating Devices UL 1577 Certificate of Compliance 26 Okt 2021
EVM User's guide Using the UCC21520EVM-286, UCC21521CEVM-286, and UCC21530EVM286 User's Guide (Rev. C) PDF | HTML 21 Okt 2021
Application brief External Gate Resistor Selection Guide (Rev. A) 28 Feb 2020
Application brief Understanding Peak IOH and IOL Currents (Rev. A) 28 Feb 2020
Certificate CSA Product Certificate (Rev. A) 15 Aug 2019
Technical article Why capacitive isolation: a vital building block for sensors in smart cities PDF | HTML 16 Jan 2018

Design und Entwicklung

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Evaluierungsplatine

UCC21520EVM-286 — UCC21520 4A/6A isolierter Zweikanal-Gate-Treiber – Evaluierungsmodul

UCC21520EVM-286 is designed for evaluating UCC21520DW, which is an isolated dual-channel gate driver with 4-A source and 6-A sink peak current capability. This EVM could be served as a reference design for driving power MOSFETS, IGBTS, and SiC MOSFETS with UCC21520 pin function identification, (...)

Benutzerhandbuch: PDF | HTML
Nicht verfügbar auf TI.com
Evaluierungsplatine

UCC21521CEVM-286 — UCC21521C 4 A/6 A, Isolierter Zweikanal-Gate-Treiber – Evaluierungsmodul

UCC21521CEVM-286 is designed for evaluating UCC21521CDW, which is an isolated dual-channel gate driver with 4-A source and 6-A sink peak current, 12V UVLO and Enable (Active High) Function. This EVM could be served as a reference design for driving power MOSFETS, IGBTS, and SiC MOSFETS with (...)

Benutzerhandbuch: PDF | HTML
Nicht verfügbar auf TI.com
Simulationsmodell

UCC21521 PSpice Transient Model

SLUM566.ZIP (139 KB) - PSpice Model
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UCC21521 Unencrypted PSpice Transient Model

SLUM565.ZIP (3 KB) - PSpice Model
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UCC21521A PSpice Transient Model

SLUM561.ZIP (54 KB) - PSpice Model
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UCC21521A Unencrypted PSpice Transient Model

SLUM562.ZIP (3 KB) - PSpice Model
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Simulationsmodell

UCC21521C PSpice Transient Model

SLUM567.ZIP (52 KB) - PSpice Model
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Simulationsmodell

UCC21521C Unencrypted PSpice Transient Model

SLUM568.ZIP (3 KB) - PSpice Model
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Berechnungstool

SLURAZ5 — UCC21520 Bootstrap Calculator 1.0

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