UCC3884 - Frequency Foldback Current Mode PWM Controller
Texas Instruments
Download the UCC3884 datasheet PDF.
This datasheet also covers the UCC2884 variant, as both devices belong to the same frequency foldback current mode pwm controller family and are provided as variant models within a single manufacturer datasheet.
General Description
The UCC3884 is a high performance current mode PWM controller intended for single ended switch mode power supplies.
The chip implements a frequency foldback scheme that decreases the oscillator frequency as the output voltage falls below a programmed value.
Key Features
1.
Frequency Foldback Reduces Operating Frequency Under Fault Conditions.
Full PDF Text Transcription for UCC3884 (Reference)
Note: Below is a high-fidelity text extraction (approx. 800 characters) for
UCC3884. For precise diagrams, and layout, please refer to the original PDF.
................................................................... SLUS160C – AUGUST 1999 – REVISED NOVEMBER 2008 Frequency Foldback Current Mode PWM Controller FEATURES 1 • Frequency Foldback Reduces Operating Frequency Under Fault Conditions • Accurate Programmable Volt-Second Clamp • Programmable Maximum Duty Cycle Clamp • Oscillator Synchronization • Overcurrent Protection • Shutdown With Full Soft Start • Wide Gain Bandwidth Amplifier (GBW > 2.5 MHz) • Current Mode Operation • Precision 5-V Reference DESCRIPTION The UCC3884 is a high performance current mode PWM controller intended for single ended switch mode power
UCC3884 Datasheet
