UCC2893PW

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Texas Instruments

110-V ACTIVE CLAMP CURRENT MODE PWM CONTROLLER WITH N-CHANNEL CLAMP FET AND 0.75V CS THRESHOLD

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DocumentsMethod of Providing Hiccup Operation for UCC2897AEVM UCC2891 Active Clamp +4

UCC2893PW

Active

Texas Instruments

110-V ACTIVE CLAMP CURRENT MODE PWM CONTROLLER WITH N-CHANNEL CLAMP FET AND 0.75V CS THRESHOLD

Deep-Dive with AI

DocumentsMethod of Providing Hiccup Operation for UCC2897AEVM UCC2891 Active Clamp +4

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	UCC2893PW

Clock Sync	True
Control Features	Ramp, Soft Start, On Time Control, Enable, Current Limit
Duty Cycle (Max) [Max]	70 %
Frequency - Switching	250 kHz
Function	Step-Up/Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive, Isolation Capable
Output Phases	1
Output Type	Transistor Driver
Package / Case	16-TSSOP
Package / Case [x]	0.173 in
Package / Case [y]	4.4 mm
Supplier Device Package	16-TSSOP
Synchronous Rectifier	False
Topology	Forward Converter, Flyback
Voltage - Supply (Vcc/Vdd) [Max]	16 V
Voltage - Supply (Vcc/Vdd) [Min]	8.5 V

UCC2893 Series

110-V active clamp current mode PWM controller with N-channel clamp FET and 0.75V CS threshold

Part	Supplier Device Package	Number of Outputs	Output Type	Topology	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Package / Case	Package / Case [x]	Package / Case [y]	Control Features	Function	Duty Cycle (Max) [Max]	Mounting Type	Frequency - Switching	Output Configuration	Output Phases
Texas Instruments UCC2893DR	16-SOIC	1	Transistor Driver	Flyback Forward Converter	85 °C	-40 °C	8.5 V	16 V	16-SOIC	0.154 in	3.9 mm	Current Limit Enable On Time Control Ramp Soft Start	Step-Up/Step-Down	70 %	Surface Mount	250 kHz	Isolation Capable Positive	1
Texas Instruments UCC2893D	16-SOIC	1	Transistor Driver	Flyback Forward Converter	85 °C	-40 °C	8.5 V	16 V	16-SOIC	0.154 in	3.9 mm	Current Limit Enable On Time Control Ramp Soft Start	Step-Up/Step-Down	70 %	Surface Mount	250 kHz	Isolation Capable Positive	1
Texas Instruments UCC2893PW	16-TSSOP	1	Transistor Driver	Flyback Forward Converter	85 °C	-40 °C	8.5 V	16 V	16-TSSOP	0.173 in	4.4 mm	Current Limit Enable On Time Control Ramp Soft Start	Step-Up/Step-Down	70 %	Surface Mount	250 kHz	Isolation Capable Positive	1
Texas Instruments UCC2893PWR	16-TSSOP	1	Transistor Driver	Flyback Forward Converter	85 °C	-40 °C	8.5 V	16 V	16-TSSOP	0.173 in	4.4 mm	Current Limit Enable On Time Control Ramp Soft Start	Step-Up/Step-Down	70 %	Surface Mount	250 kHz	Isolation Capable Positive	1

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 4.11
		10	$ 3.69
		90	$ 3.02
		270	$ 2.87
		540	$ 2.57
		1080	$ 2.17
Texas Instruments	TUBE	1	$ 3.10
		100	$ 2.72
		250	$ 1.91
		1000	$ 1.53

Description

General part information

UCC2893 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.