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UC3844BNG - 

PWM Controller, 25V-12V supply, 250 kHz, 13.4V/200mA out, DIP-8

UC3844BNG - PWM Controller, 25V-12V supply, 250 kHz, 13.4V/200mA out, DIP-8

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Manufacturer Part No:
UC3844BNG
Order Code:
1652439
Technical Datasheet:
UC3844BNG   Datasheet
See all Technical Docs

Product Overview

The UC3844BNG is a high-performance fixed frequency current-mode Pulse Width Modulation (PWM) Controller specifically designed for off-line and DC to DC converter applications offering the designer a cost-effective solution with minimal external components. It features an oscillator, a temperature compensated reference, high gain error amplifier, current sensing comparator and a high current totem pole output ideally suited for driving a power MOSFET. Also included are protective features consisting of input and reference undervoltage lockouts each with hysteresis, cycle-by-cycle current limiting, a latch for single pulse metering and a flip-flop which blanks the output off every other oscillator cycle, allowing output deadtimes to be programmed from 50 to 70%.
  • Trimmed oscillator for precise frequency control
  • Automatic feed forward compensation
  • Internally trimmed reference with undervoltage lockout
  • High current totem pole output
  • Undervoltage lockout with hysteresis
  • Low startup and operating current

Applications

Power Management, Industrial

Product Information

:
-
:
13.4V
:
200mA
:
12V
:
25V
:
DIP
:
8Pins
:
250kHz
:
0°C
:
70°C
:
-
:
-
:
-
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