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UC2844BDR2G

PWM Controller, 12V - 25V Supply, 52 kHz, 200 mA Out, SOIC-14

ON SEMICONDUCTOR UC2844BDR2G

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Manufacturer Part No:
UC2844BDR2G
Order Code:
2628015
Product Range
UC2844B Series
Technical Datasheet:
UC2844BDR2G   Datasheet
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Product Range Selector (UC2844B Series)

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Product Overview

The UC2844BDR2G is a high performance current mode controller in 14 pin SOIC package. This is a high performance fixed frequency current mode controller. It is specifically designed for off-line and dc-dc converter applications offering the designer a cost effective solution with minimal external components. This integrated circuit 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. It 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 dead times to be programmed from 50% to 70%. It has UVLO thresholds of 16V (on) and 10V (off) ideally suited for off-line converter.
  • Trimmed oscillator for precise frequency control
  • Oscillator frequency of 250KHz
  • Current mode operation to 500KHz output switching frequency
  • Automatic feed forward compensation
  • Latching PWM for cycle-by-cycle current limiting
  • Internally trimmed reference with undervoltage lockout
  • High current totem pole output
  • Undervoltage lockout with hysteresis
  • Low start-up and operating current

Applications

Power Management

Footnotes

It contains ESD protection and exceeds the following tests, human body model 4000 V per JEDEC standard JESD22-A114B, machine model method 200 V per JEDEC standard JESD22-A115-A.

Product Information

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-

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-

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200mA

:
12V

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25V

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SOIC

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14Pins

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52kHz

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-25°C

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85°C

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UC2844B Series

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-

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MSL 1 - Unlimited
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Technical Docs (1)

Packaging type Cut Tape

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