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UC3844N - 

PWM Controller, 30V-10V supply, 450 kHz, 13.5V/1A out, DIP-8

TEXAS INSTRUMENTS UC3844N

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Manufacturer Part No:
UC3844N
Newark Part No.:
62K3475
Technical Datasheet:
(EN)
See all Technical Docs

Product Overview

The UC3844N is a Current Mode PWM Controller optimized for off-line and DC to DC converters. This device 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.
  • Optimized for off-line and DC to DC converters
  • Low start up current (<1mA)
  • 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
  • Green product and no Sb/Br

Applications

Power Management

Product Information

:
25V
:
13.5V
:
1A
:
12V
:
25V
:
DIP
:
8Pins
:
450kHz
:
0°C
:
70°C
:
Each
:
-
:
-
:
-
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