UC2845 HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS

Unisonic Technologies

Description

UNISONIC TECHNOLOGIES CO., LTD UC2844/45 LINEAR INTEGRATED CIRCUIT HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS * .
The UTC UC2844/2845 are high performance fixed frequency current mode controllers that specifically designed for Off-Line and DC to DC converter appli.

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Datasheet Specifications

Part number: UC2845
Manufacturer: Unisonic Technologies
File Size: 285.95 KB
Datasheet: UC2845-UnisonicTechnologies.pdf
Description: HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS

Features

* Operation output switching frequency up to 500 kHz
* Output deadtime adjustable from 50% to 70%
* Automatic feed forward compensation
* Latching PWM for cycle-by-cycle current limiting
* High current totem pole output
* Internally trimmed reference with under voltage locko

Applications

* with minimal external parts count. The differences between UC2844 and UC2845 are the maximum duty cycle ranges and under-voltage lockout thresholds. The UC2844 ideally suited to off-line applications with UVLO thresholds of 16V(ON) and 10V(OFF), and UC2845 has UVLO thresholds of 8.5V(ON) and 7.6V(OF

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UC2845 HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS Unisonic Technologies

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