Microchip Technology APGRD004 Hoja De Datos

        LED Lighting Solutions Design Guide 

www.microchip.com/lighting

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MCP1650/51/52/53 Data Sheet, DS21876

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AN980 – Designing a Boost-Switching Regulator with

  the MCP1650, DS00980

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DG10 – Power Solutions Design Guide, DS21913

9-13 volt systems easily adapt to a Smart Driver Circuit 
to drive High Power LEDs using the MCP1702, MCP1652 
and a PIC10F202. The MCP1702 directly connected to 
the 12 volt source creates a 5 volt bias supply capable of 
delivering 250 mA to the intelligent boost control circuit. 
The LEDs are powered by the source voltage boosted by the 
MCP1652, minimizing the current requirements for the 5V 
power system. A PIC10F202 adds intelligence to the circuit 
providing a means for thermal protection, load open and 
short circuit protection as well as the capability of a user 
interface to control dimming and other features.

Low Battery Detect enables the designer to determine 
a trip point for a low battery condition to make “smart” 
adjustments to the circuit function with the PIC10F202. The 
Power Good Indication enables the designer to determine 
when output voltage conditions are correct.

MCP1650

Standard Device

8-Pin MSOP

MCP1651

Low Battery Detect

8-Pin MSOP

MCP1652

Power Good Indication

8-Pin MSOP

MCP1653

Low Battery Detect and 
Power Good Indication

10-Pin MSOP

10 LED String

700 mA, 34V DC

User

Interface

Dimming

Output

Control

9-13V DC