UCC2891D - TI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

UCC2891D
Manufacturer

TI
ChipWorker Part#

CW11968746
Category

Voltage Regulator
Package

SOIC-16
Description

Current Mode PWM Controller 2A 1000kHz 16Pin SOIC Tube
Documentation

Datasheet

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UCC2891D Specifications

Attribute	Attribute Value

Part Number	UCC2891D
Manufacturer	TI
ChipWorker Part#	CW11968746
Category	Voltage Regulator
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	16 Pin
Case/Package	SOIC-16
Frequency	250 kHz
Supply Voltage (DC)	8.50V (min)
Number of Outputs	1 Output
Input Voltage (DC)	110 V
Output Voltage	900 mV
Output Current	150 mA
Supply Current	3 mA
Number of Positions	16 Position
Quiescent Current	2.00 mA
Number of Regulated Outputs	1 Output
Rise Time	19 ns
Switching Frequency	250 kHz
Topology	Flyback, Forward
Duty Cycle	74 %
Output Current (Max)	2 A
Maximum Duty Cycle	70 %
Fall Time	14 ns
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	8.5V ~ 16V
Supply Voltage (Max)	16 V
Supply Voltage (Min)	8.5 V
Input Voltage	110 V
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Size-Length	9.9 mm
Size-Width	3.91 mm
Size-Height	1.58 mm
Operating Temperature	-40℃ ~ 125℃
Product Lifecycle Status	Active
Packaging	Each
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/06/15
ECCN Code	EAR99

Product Description

The UCC2891D is a current-mode active clamp Pulse Width Modulation (PWM) Controller designed to simplify implementation of the various active clamp/reset switching power topologies. It is a peak current-mode, fixed frequency, 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. It includes a 110V start-up regulator for initial start-up and to provide keep-alive power during stand-by. Additional features include an internal programmable slope compensation circuit, precise DMAX limit and a single resistor programmable synchronizable oscillator. An accurate line monitoring function also programs the converter"s ON and OFF transitions with regard to the bulk input voltage.
Low output jitter
Soft-stop shutdown of MAIN and AUX
Ideal for active clamp/reset forward, flyback converters
Peak current-mode control with cycle-by-cycle current limiting
Accurate line UV and line OV threshold
Programmable slope compensation
Precise programmable maximum duty cycle
Programmable soft-start
Green product and no Sb/Br
Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

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