UCC21521

AKTIV

Verstärkter isolierter Zweikanal-Gate-Treiber, 4 A/6 A, mit Aktivierung, programmierbarer Totzeit

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Datenblatt

document-pdfAcrobat UCC21521 4-A, 6-A, 5.7-kVRMS Isolated Dual-Channel Gate Driver with Enable datasheet (Rev. B) (Englisch) PDF | HTML

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UCC21551

AKTIV

Isolierter 2-Kanal-Gate-Treiber, 4 A/6 A, Aktivierung, programm. Totzeit Next gen P2P refresh

UCC21521

AKTIV

Datenblatt

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Produktdetails

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 (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 (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 mm × 10.3 mm)

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-V_PK reinforced isolation per DIN V VDE V 0884-11:2017-01
- 5700-V_RMS 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-V_PK reinforced isolation per DIN V VDE V 0884-11:2017-01
- 5700-V_RMS 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-kV_RMS 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 V_DC.

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-kV_RMS 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 V_DC.

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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Top-Dokumentation	Typ	Titel	Format-Optionen	Datum
*	Datenblatt	UCC21521 4-A, 6-A, 5.7-kVRMS Isolated Dual-Channel Gate Driver with Enable datasheet (Rev. B)	PDF \| HTML	08.12.2021
	Zertifikat	VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. AB)		15.07.2026
	Zertifikat	UL Certification E181974 Vol 4. Sec 7 (Rev. D)		08.09.2025
	Zertifikat	UCC215xx CQC Certificate of Product Certification	PDF \| HTML	17.08.2023
	Zertifikat	UCC21520 CQC Certificate of Product Certification (Rev. A)	PDF \| HTML	16.08.2023
	Application brief	The Use and Benefits of Ferrite Beads in Gate Drive Circuits	PDF \| HTML	16.12.2021
	Zertifikat	FPPT2 - Nonoptical Isolating Devices UL 1577 Certificate of Compliance		26.10.2021
	Application brief	External Gate Resistor Selection Guide (Rev. A)		28.02.2020
	Application brief	Understanding Peak IOH and IOL Currents (Rev. A)		28.02.2020
	Zertifikat	CSA Product Certificate (Rev. A)		15.08.2019
	Technischer Artikel	Why capacitive isolation: a vital building block for sensors in smart cities	PDF \| HTML	16.01.2018

Design und Entwicklung

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Evaluierungsplatine

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

Das UCC21520EVM-286 ist für die Evaluierung des UCC21520DW ausgelegt, eines isolierten Gate-Treibers mit zwei Kanälen sowie einer 4-A-Quell- und 6-A-Senk-Spitzenstrombelastbarkeit. Dieses EVM dient als Referenzdesign zur Ansteuerung von Leistungs-MOSFETs, IGBTs und SiC-MOSFETs mit Identifikation (...)

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Evaluierungsplatine

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

Das UCC21521CEVM-286 wurde für die Evaluierung des UCC21521CDW entwickelt, bei dem es sich um einen isolierten zweikanaligen Gate-Treiber mit 4-A-Quell- und 6-A-Senk-Spitzenstrom, 12 V UVLO und Aktivierungsfunktion (Active High) handelt. Dieses EVM dient als Referenzdesign zur Ansteuerung von (...)

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