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隔離式閘極驅動器

UCC21521

現行

採用雙輸入、啟用功能、8V UVLO 和 LGA 封裝的 5.7kVrms、4A/6A 雙通道絕緣式閘極驅動器

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產品規格表

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UCC21551 現行 4A/6A 5kVRMS 雙通道隔離式閘極驅動器，具備 IGBT 與 SiC 適用的 EN 與 DT 針腳 Next gen P2P refresh

UCC21521

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 2 Isolation rating Reinforced Power switch GaNFET, IGBT, MOSFET, SiCFET Withstand isolation voltage (VISO) (Vrms) 5700 Working isolation voltage (VIOWM) (Vrms) 1500 Transient isolation voltage (VIOTM) (VPK) 8000 Peak output current (A) 6 Peak output current (source) (typ) (A) 4 Peak output current (sink) (typ) (A) 6 Features Enable, Programmable dead time Output VCC/VDD (min) (V) 6.5, 9.2, 14.7 Output VCC/VDD (max) (V) 25 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 Power switch GaNFET, IGBT, MOSFET, SiCFET Withstand isolation voltage (VISO) (Vrms) 5700 Working isolation voltage (VIOWM) (Vrms) 1500 Transient isolation voltage (VIOTM) (VPK) 8000 Peak output current (A) 6 Peak output current (source) (typ) (A) 4 Peak output current (sink) (typ) (A) 6 Features Enable, Programmable dead time Output VCC/VDD (min) (V) 6.5, 9.2, 14.7 Output VCC/VDD (max) (V) 25 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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類型 標題 日期
* Data sheet UCC21521 4-A, 6-A, 5.7-kVRMS Isolated Dual-Channel Gate Driver with Enable datasheet (Rev. B) PDF | HTML 2021年 12月 8日
Certificate VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. Z) 2026年 1月 8日
Certificate UL Certification E181974 Vol 4. Sec 7 (Rev. D) 2025年 9月 8日
Certificate UCC215xx CQC Certificate of Product Certification 2023年 8月 17日
Certificate UCC21520 CQC Certificate of Product Certification (Rev. A) 2023年 8月 16日
Application brief The Use and Benefits of Ferrite Beads in Gate Drive Circuits PDF | HTML 2021年 12月 16日
Certificate FPPT2 - Nonoptical Isolating Devices UL 1577 Certificate of Compliance 2021年 10月 26日
Application brief External Gate Resistor Selection Guide (Rev. A) 2020年 2月 28日
Application brief Understanding Peak IOH and IOL Currents (Rev. A) 2020年 2月 28日
Certificate CSA Product Certificate (Rev. A) 2019年 8月 15日
Technical article Why capacitive isolation: a vital building block for sensors in smart cities PDF | HTML 2018年 1月 16日

設計與開發

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開發板

UCC21520EVM-286 — UCC21520 4A/6A 隔離式雙通道閘極驅動器評估模組

UCC21520EVM-286 專為評估 UCC21520DW 而設計，這是一款具備 4 A 源極和 6-A 汲極峰值電流能力的隔離式雙通道閘極驅動器。此 EVM 可做為驅動功率 MOSFETS、IGBTS 和 SiC MOSFETS 的參考設計，並提供 UCC21520 針腳功能識別、元件選擇指南與 PCB 配置範例。

使用指南: PDF | HTML
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開發板

UCC21521CEVM-286 — UCC21521C 4A/6A 隔離式雙通道閘極驅動器評估模組

UCC21521CEVM-286 專為評估 UCC21521CDW 而設計，該裝置為隔離式雙通道閘極驅動器，具備 4A 源極與 6A 汲極峰值電流、12V UVLO 以及啟用（高電位作動）功能。此 EVM 可做為驅動功率 MOSFETS、IGBTS 和 SiC MOSFETS 的參考設計，並提供 UCC21521C 針腳功能識別、元件選擇指南與 PCB 配置範例。

使用指南: PDF | HTML
TI.com 無法提供
模擬型號

UCC21521 PSpice Transient Model

SLUM566.ZIP (139 KB) - PSpice Model
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模擬型號

UCC21521 Unencrypted PSpice Transient Model

SLUM565.ZIP (3 KB) - PSpice Model
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模擬型號

UCC21521A PSpice Transient Model

SLUM561.ZIP (54 KB) - PSpice Model
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模擬型號

UCC21521A Unencrypted PSpice Transient Model

SLUM562.ZIP (3 KB) - PSpice Model
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模擬型號

UCC21521C PSpice Transient Model

SLUM567.ZIP (52 KB) - PSpice Model
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模擬型號

UCC21521C Unencrypted PSpice Transient Model

SLUM568.ZIP (3 KB) - PSpice Model
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計算工具

SLURAZ5 — UCC21520 Bootstrap Calculator 1.0

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隔離式閘極驅動器
UCC21220 — 適用於 MOSFET 和 GaNFET 且具有停用針腳和 8V UVLO 的 3.0kVrms、4A/6A 雙通道隔離式閘極驅動器 UCC21222 — 具有停用針腳、可編程失效時間和 8V UVLO 的 3.0kVrms、4A/6A 雙通道隔離式閘極驅動器 UCC21520 — 採用 DW 封裝且具有雙輸入和停用針腳的 5.7kVRMS 4A/6A 雙通道隔離式閘極驅動器 UCC21521 — 採用雙輸入、啟用功能、8V UVLO 和 LGA 封裝的 5.7kVrms、4A/6A 雙通道絕緣式閘極驅動器
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