Isolators

UCC21521CDW

LTB

5.7KVRMS, 4A/6A DUAL-CHANNEL ISOLATED GATE DRIVER WITH DUAL INPUT, ENABLE, 8V UVLO & LGA PACK

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Search across all available documentation for this part.

DocumentsVDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. W)UL Certification E181974 Vol 4. Sec 7 (Rev. C)+10

Isolators

UCC21521CDW

LTB

Texas Instruments

5.7KVRMS, 4A/6A DUAL-CHANNEL ISOLATED GATE DRIVER WITH DUAL INPUT, ENABLE, 8V UVLO & LGA PACK

Deep-Dive with AI

DocumentsVDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. W)UL Certification E181974 Vol 4. Sec 7 (Rev. C)+10

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	UCC21521CDW

Approval Agency	CQC, VDE, CSA, UR
Common Mode Transient Immunity (Min) [Min]	100 V/ns
Current - Output High, Low [custom]	6 A
Current - Output High, Low [custom]	4 A
Mounting Type	Surface Mount
Number of Channels	2
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 C
Package / Case	16-SOIC
Package / Case	7.5 mm
Package / Case	0.295 "
Propagation Delay tpLH / tpHL (Max) [Max] [custom]	30 ns
Propagation Delay tpLH / tpHL (Max) [Max] [custom]	30 ns
Pulse Width Distortion (Max) [Max]	6 ns
Rise / Fall Time (Typ) [custom]	7 ns
Rise / Fall Time (Typ) [custom]	6 ns
Supplier Device Package	16-SOIC
Technology	Capacitive Coupling
Voltage - Isolation	5700 Vrms
Voltage - Output Supply [Max]	25 V
Voltage - Output Supply [Min]	14.7 V

UCC21521 Series

Part	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Pulse Width Distortion (Max) [Max]	Number of Channels	Voltage - Isolation	Mounting Type	Propagation Delay tpLH / tpHL (Max) [Max] [custom]	Propagation Delay tpLH / tpHL (Max) [Max] [custom]	Rise / Fall Time (Typ) [custom]	Rise / Fall Time (Typ) [custom]	Voltage - Output Supply [Min]	Voltage - Output Supply [Max]	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Package / Case	Package / Case	Package / Case	Approval Agency	Technology	Common Mode Transient Immunity (Min) [Min]	Supplied Contents	Contents	Function	Utilized IC / Part	Type
Texas Instruments UCC21521DW	16-SOIC	125 °C	-40 C	6 ns	2	5700 Vrms	Surface Mount	30 ns	30 ns	7 ns	6 ns	9.2 V	25 V	6 A	4 A	16-SOIC	7.5 mm	0.295 "	CQC CSA UR VDE	Capacitive Coupling	100 V/ns
Texas Instruments UCC21521ADWR	16-SOIC	125 °C	-40 C	6 ns	2	5700 Vrms	Surface Mount	30 ns	30 ns	7 ns	6 ns	6.5 V	25 V	6 A	4 A	16-SOIC	7.5 mm	0.295 "		Capacitive Coupling	100 V/ns
Texas Instruments UCC21521CEVM-286																						Board(s)	Board(s)	Gate Driver	UCC21521	Power Management
Texas Instruments UCC21521CDWR	16-SOIC	125 °C	-40 C	6 ns	2	5700 Vrms	Surface Mount	30 ns	30 ns	7 ns	6 ns	3 V	18 V	6 A	4 A	16-SOIC	7.5 mm	0.295 "		Capacitive Coupling	100 V/ns
Texas Instruments UCC21521DWR	16-SOIC	125 °C	-40 C	6 ns	2	5700 Vrms	Surface Mount	30 ns	30 ns	7 ns	6 ns	9.2 V	25 V	6 A	4 A	16-SOIC	7.5 mm	0.295 "		Capacitive Coupling	100 V/ns
Texas Instruments UCC21521ADW	16-SOIC	125 °C	-40 C	6 ns	2	5700 Vrms	Surface Mount	30 ns	30 ns	7 ns	6 ns	6.5 V	25 V	6 A	4 A	16-SOIC	7.5 mm	0.295 "	CQC CSA UR VDE	Capacitive Coupling	100 V/ns
Texas Instruments UCC21521CDW	16-SOIC	125 °C	-40 C	6 ns	2	5700 Vrms	Surface Mount	30 ns	30 ns	7 ns	6 ns	14.7 V	25 V	6 A	4 A	16-SOIC	7.5 mm	0.295 "	CQC CSA UR VDE	Capacitive Coupling	100 V/ns

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	N/A	568	$ 6.22
	Tube	1	$ 6.33
		10	$ 5.68
		40	$ 5.37
		120	$ 4.66
		280	$ 4.42
		520	$ 3.96
Texas Instruments	TUBE	1	$ 5.27
		100	$ 4.62
		250	$ 3.24
		1000	$ 2.61

Description

General part information

UCC21521 Series

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-kVRMSreinforced 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.