Specification	UCC2892PW

Clock Sync	True
Control Features	Soft Start, On Time Control, Enable, Ramp, 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	Isolation Capable, Positive
Output Phases	1
Output Type	Transistor Driver
Package / Case	16-TSSOP
Package / Case [y]	4.4 mm
Package / Case [y]	0.173 in
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

UCC2892 Series

16V active clamp current mode PWM controller with P-channel clamp FET and line OV protection

Part	Control Features	Frequency - Switching	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Output Configuration	Package / Case	Package / Case	Supplier Device Package	Output Phases	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Duty Cycle (Max) [Max]	Topology	Function	Output Type	Number of Outputs	Package / Case [y]	Package / Case [y]
Texas Instruments UCC2892D	Current Limit Enable On Time Control Ramp Soft Start	250 kHz	8.5 V	16 V	Isolation Capable Positive	16-SOIC	0.154 in 3.9 mm	16-SOIC	1	85 C	-40 ¯C	Surface Mount	70 %	Flyback Forward Converter	Step-Up/Step-Down	Transistor Driver	1
Texas Instruments UCC2892D	Current Limit Enable On Time Control Ramp Soft Start	250 kHz	8.5 V	16 V	Isolation Capable Positive	16-SOIC	0.154 in 3.9 mm	16-SOIC	1	85 C	-40 ¯C	Surface Mount	70 %	Flyback Forward Converter	Step-Up/Step-Down	Transistor Driver	1
Texas Instruments UCC2892PW	Current Limit Enable On Time Control Ramp Soft Start	250 kHz	8.5 V	16 V	Isolation Capable Positive	16-TSSOP		16-TSSOP	1	85 C	-40 ¯C	Surface Mount	70 %	Flyback Forward Converter	Step-Up/Step-Down	Transistor Driver	1	4.4 mm	0.173 in
Texas Instruments UCC2892PW	Current Limit Enable On Time Control Ramp Soft Start	250 kHz	8.5 V	16 V	Isolation Capable Positive	16-TSSOP		16-TSSOP	1	85 C	-40 ¯C	Surface Mount	70 %	Flyback Forward Converter	Step-Up/Step-Down	Transistor Driver	1	4.4 mm	0.173 in
Texas Instruments UCC2892PWR	Current Limit Enable On Time Control Ramp Soft Start	250 kHz	8.5 V	16 V	Isolation Capable Positive	16-TSSOP		16-TSSOP	1	85 C	-40 ¯C	Surface Mount	70 %	Flyback Forward Converter	Step-Up/Step-Down	Transistor Driver	1	4.4 mm	0.173 in
Texas Instruments UCC2892DR	Current Limit Enable On Time Control Ramp Soft Start	250 kHz	8.5 V	16 V	Isolation Capable Positive	16-SOIC	0.154 in 3.9 mm	16-SOIC	1	85 C	-40 ¯C	Surface Mount	70 %	Flyback Forward Converter	Step-Up/Step-Down	Transistor Driver	1

Pricing

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

Distributor	Package	Quantity	$

Digikey	Bulk	171	$ 1.76
		171	$ 1.76
	N/A	0	$ 2.06
		0	$ 2.06
		264	$ 2.31
		264	$ 2.31
		1710	$ 2.06
	Tube	450	$ 1.87
		450	$ 1.87
Texas Instruments	TUBE	1	$ 2.60
		100	$ 2.27
		250	$ 1.59
		1000	$ 1.28

Description

General part information

UCC2892 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.

Documents

Technical documentation and resources

UCC289x Current Mode Active Clamp PWM Controller datasheet (Rev. F)

Data sheet