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Utsource certified used parts provide the following guarantees:
1. Utsource will inspect the goods, including appearance inspection (no serious damage to the appearance), select qualified and honest suppliers, and ensure 98% qualification rate.
2. Some parts are tested by machine.
3. Utsource certified parts can be returned and refunded unconditionally within 60 days.
Description
CURRENT MODE ACTIVE CLAMP PWM CONTROLLER
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FEATURES
● Low Output Jitter
● Soft?Stop Shutdown of MAIN and AUX
● Ideal for Active Clamp/Reset Forward, Flyback Converters
● Provides Complementary Auxiliary Driver with Programmable Deadtime (Turn-On Delay) between AUX and MAIN Switches
● Peak Current-Mode Control with Cycle-by-Cycle Current Limiting
● 110-V Input Startup Regulator on UCC2891/3
● TrueDrive 2-A Sink, 2-A Source Outputs
● Accurate Line UV and Line OV Threshold
● Programmable Slope Compensation
● 1.0-MHz Synchronizable Oscillator
● Precise Programmable Maximum Duty Cycle
● Programmable Soft Start
APPLICATIONS
● 150-W to 700-W SMPS
● High-Efficiency, Low EMI/RFI Off-Line or DC/DC Converters
● Server, 48-V Telecom, Datacom
● High Power Adapter, LCD-TV and PDP-TV
DESCRIPTION
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, 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.
The UCC2891/3 includes a 110-V 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. Along with the UCC2897, this UCC289x family allows the power supply designer to eliminate many of the external components, reducing the size and complexity of the design.
Preview of the first 3 pages of the data sheet
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241 buyer reviews from United Kingdom
Christopher Taylor
Length of registration:7 years
I recently tested the UCC2893PW integrated circuit from Utsource and I am very pleased with the results. The circuit performed as expected and was easy to use. The documentation was clear and concise, making it easy to understand the features and functions of the circuit. The circuit was also very reliable, with no issues during testing. Overall, I am very satisfied with the UCC2893PW from Utsourc
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03/17/2023
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Warranty
All UTSOURCE purchases have a 60 days money back return policy, plus a 90 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.
UCC2893PW
UCC2893PW has several brands around the world that may have alternate names for UCC2893PW due to regional differences or acquisition. UCC2893PW may also be known as the following names:
BUYING OPTIONS
Stock Status: 10000
Minimum: 2
Total Price:
Unit Price:3.24373
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United States
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