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UC3846N .

PWM Controller, 8V-40V supply, 450kHz, 13.5V/500mA out, DIP-16

TEXAS INSTRUMENTS UC3846N .
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Manufacturer Part No:
UC3846N .
Order Code:
1564893

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TEXAS INSTRUMENTS

PWM Controller, 8V-40V supply, 450kHz, 13.5V/500mA out, DIP-16

     

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Product Overview

The UC3846N is a Current Mode PWM Controller that provides all of the necessary features to implement fixed frequency, current mode control schemes while maintaining a minimum external parts count. The superior performance of this technique can be measured in improved line regulation, enhanced load response characteristics and a simpler, easier-to-design control loop. Topological advantages include inherent pulse-by-pulse current limiting capability, automatic symmetry correction for push-pull converters and the ability to parallel "power modules" while maintaining equal current sharing. Protection circuitry includes built-in under-voltage lockout and programmable current limit in addition to soft start capability. A shut-down function is also available which can initiate either a complete shutdown with automatic restart or latch the supply off. Other features include fully latched operation, double pulse suppression, deadline adjust capability and a ±1% trimmed bandgap reference.
  • Automatic feed forward compensation
  • Programmable pulse-by-pulse current limiting
  • Automatic symmetry correction in push-pull configuration
  • Enhanced load response characteristics
  • Parallel operation capability for modular power systems
  • Differential current sense amplifier with wide common mode range
  • Double pulse suppression
  • 500mA (Peak) totem-pole outputs
  • ±1% bandgap reference
  • Under-voltage lockout
  • Soft-start capability
  • Shutdown terminal
  • Green product and no Sb/Br

Applications

Power Management

Product Information

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15V

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13.5V

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500mA

:
7.7V

:
40V

:
PDIP

:
16Pins

:
500kHz

:
0°C

:
70°C

:
-

:
-

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-
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Technical Docs (1)

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CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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