UCC2894DR

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Texas Instruments

16V ACTIVE CLAMP CURRENT MODE PWM CONTROLLER WITH N-CHANNEL CLAMP FET AND LINE OV PROTECTION

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Search across all available documentation for this part.

DocumentsUCC289x Current Mode Active Clamp PWM Controller datasheet (Rev. F)Datasheet

UCC2894DR

Active

Texas Instruments

16V ACTIVE CLAMP CURRENT MODE PWM CONTROLLER WITH N-CHANNEL CLAMP FET AND LINE OV PROTECTION

Deep-Dive with AI

DocumentsUCC289x Current Mode Active Clamp PWM Controller datasheet (Rev. F)Datasheet

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	UCC2894DR

Control Features	Soft Start, Sync
Duty Cycle	70 %
Fault Protection	Current Limiting
Frequency - Switching	1 MHz
Internal Switch(s)	False
Mounting Type	Surface Mount
Operating Temperature [custom]	-40 °C, 105 °C
Output Isolation	Isolated
Package / Case	16-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Supplier Device Package	16-SOIC
Topology	Flyback, Forward
Voltage - Start Up	12.7 V
Voltage - Supply (Vcc/Vdd) [Max]	16 V
Voltage - Supply (Vcc/Vdd) [Min]	8.5 V

UCC2894 Series

Part	Package / Case	Package / Case [x]	Package / Case [y]	Fault Protection	Operating Temperature [custom]	Voltage - Start Up	Topology	Supplier Device Package	Output Isolation	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Mounting Type	Frequency - Switching	Duty Cycle	Control Features
Texas Instruments UCC2894DR	16-SOIC	0.154 in	3.9 mm	Current Limiting	-40 °C 105 °C	12.7 V	Flyback Forward	16-SOIC	Isolated	8.5 V	16 V	Surface Mount	1 MHz	70 %	Soft Start Sync
Texas Instruments UCC2894DRG4	16-SOIC	0.154 in	3.9 mm	Current Limiting	-40 °C 105 °C	12.7 V	Flyback Forward	16-SOIC	Isolated	8.5 V	16 V	Surface Mount	1 MHz	70 %	Soft Start Sync
Texas Instruments UCC2894D	16-SOIC	0.154 in	3.9 mm	Current Limiting	-40 °C 105 °C	12.7 V	Flyback Forward	16-SOIC	Isolated	8.5 V	16 V	Surface Mount	1 MHz	70 %	Soft Start Sync
Texas Instruments UCC2894PWR	16-TSSOP	0.173 in	4.4 mm	Current Limiting	-40 °C 105 °C	12.7 V	Flyback Forward	16-TSSOP	Isolated	8.5 V	16 V	Surface Mount	1 MHz	70 %	Soft Start Sync
Texas Instruments UCC2894PW	16-TSSOP	0.173 in	4.4 mm	Current Limiting	-40 °C 105 °C	12.7 V	Flyback Forward	16-TSSOP	Isolated	8.5 V	16 V	Surface Mount	1 MHz	70 %	Soft Start Sync

Pricing

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

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 3.16
		10	$ 2.84
		25	$ 2.68
		100	$ 2.33
		250	$ 2.21
		500	$ 1.98
		1000	$ 1.67
	Digi-Reel®	1	$ 3.16
		10	$ 2.84
		25	$ 2.68
		100	$ 2.33
		250	$ 2.21
		500	$ 1.98
		1000	$ 1.67
	Tape & Reel (TR)	2500	$ 1.59
		5000	$ 1.53
Texas Instruments	LARGE T&R	1	$ 2.74
		100	$ 2.40
		250	$ 1.69
		1000	$ 1.36

Description

General part information

UCC2894 Series

The UCC2891/2/3/4 family of PWM controllers is designed to simplify implementation of the various active clamp/reset switching power topologies.

The UCC289x is a peak current-mode, fixedfrequency, high-performance pulse width modulator. It includes the logic and the drive capability for the auxiliary switch with a simple method of programming the critical delays for proper active clamp operation.

The UCC2891/3 includes a 110-V start-up regulator for initial start-up and to provide keep-alive power during stand-by.