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UC2844N

PWM Controller Flyback, 25V-12V supply, 500 kHz, 13.5V/200mA out, DIP-8

TEXAS INSTRUMENTS UC2844N

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Manufacturer Part No:
UC2844N
Order Code:
3123507

Product Overview

The UC2844N is a current-mode Pulse Width Modulation (PWM) Controller provides the necessary features to implement off-line or DC to DC fixed frequency current-mode control schemes with a minimal external parts count. Internally implemented circuits include under-voltage lockout featuring start up current less than 1mA, a precision reference trimmed for accuracy at the error amp input, logic to insure latched operation, a PWM comparator which also provides current limit control and a totem pole output stage designed to source or sink high peak current. The output stage, suitable for driving N-channel MOSFETs, is low in the off state.
  • Low start-up current
  • Automatic feed forward compensation
  • Pulse-by-pulse current limiting
  • Enhanced load response characteristics
  • Under-voltage lockout with hysteresis
  • Double pulse suppression
  • High current totem pole output
  • Internally trimmed bandgap reference
  • Low RO Error amplifier
  • Green product and no Sb/Br

Applications

Power Management, Industrial

Product Information

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:
25V

:
13.5V

:
200mA

:
12V

:
25V

:
DIP

:
8Pins

:
500kHz

:
-40°C

:
85°C

:
-

:
-

:
-
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Technical Docs (1)

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