Anglia Lighting LED Solid State Lighting
 

Adding Intelligence to Lighting Applications

Driving LEDs with a Charge Pump

Contrary to other topologies, a charge pump based LED driver does not require the use of inductors. This provides a more compact and less expensive circuit. The downside is that charge pumps cannot supply large amounts of current compared to the other topologies. Charge pump circuits are most useful for backlighting applications.

Common applications include:

  • PCs
  • Small LCD displays backlighting
  • Automotive instrumentation backlighting.
  • Digital cameras’ LED flash

MCP1252 Charge Pump Backlight Demonstration Board

 

Charge Pump LED Driver Using the MCP1252

Recommended Part:

    MCP1252-adj - Low Noise, Positive-Regulated, Adjustable Output Charge Pump

 

Available Literature:

 

Development Tools

 

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