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TEXAS INSTRUMENTS  UC3846N  PWM Controller, 8V-40V supply, 450kHz, 13.5V/500mA out, DIP-16

TEXAS INSTRUMENTS UC3846N
Technical Data Sheet (10.06KB) EN See all Technical Docs

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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

 

Product Information

Input Voltage:
15V
Output Voltage:
13.5V
Output Current:
500mA
Supply Voltage Min:
8V
Supply Voltage Max:
40V
Controller IC Case Style:
DIP
No. of Pins:
16Pins
Frequency:
450kHz
Operating Temperature Min:
0°C
Operating Temperature Max:
70°C
Packaging:
Each
Product Range:
-
Automotive Qualifications Standard:
-
Power Dissipation Pd:
1 W
MSL:
-
Supply Voltage Range:
8V to 40V
SVHC:
No SVHC (15-Jun-2015)
Digital IC Case Style:
DIP

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Applications

  • Power Management

Legislation and Environmental

Moisture Sensitivity Level:
-
Product Traceability
RoHS Compliant:
Yes
Authorized Distributor

Substitutes

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

TEXAS INSTRUMENTS

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