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LED Driver Design - Griffith University · LED Driver Design Refer to AN874 from Microchip Buck...

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LED Driver Design Refer to AN874 from Microchip Buck Configuration High-Power LED Driver To suit 1W and 3W LED

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Page 1: LED Driver Design - Griffith University · LED Driver Design Refer to AN874 from Microchip Buck Configuration High-Power LED Driver To suit 1W and 3W LED. MOSFET Current rating On

LED Driver DesignRefer to AN874 from Microchip

Buck Configuration High-Power LED Driver

To suit 1W and 3W LED

Page 2: LED Driver Design - Griffith University · LED Driver Design Refer to AN874 from Microchip Buck Configuration High-Power LED Driver To suit 1W and 3W LED. MOSFET Current rating On

Page 3: LED Driver Design - Griffith University · LED Driver Design Refer to AN874 from Microchip Buck Configuration High-Power LED Driver To suit 1W and 3W LED. MOSFET Current rating On

Page 4: LED Driver Design - Griffith University · LED Driver Design Refer to AN874 from Microchip Buck Configuration High-Power LED Driver To suit 1W and 3W LED. MOSFET Current rating On

Page 5: LED Driver Design - Griffith University · LED Driver Design Refer to AN874 from Microchip Buck Configuration High-Power LED Driver To suit 1W and 3W LED. MOSFET Current rating On

Page 6: LED Driver Design - Griffith University · LED Driver Design Refer to AN874 from Microchip Buck Configuration High-Power LED Driver To suit 1W and 3W LED. MOSFET Current rating On

Page 7: LED Driver Design - Griffith University · LED Driver Design Refer to AN874 from Microchip Buck Configuration High-Power LED Driver To suit 1W and 3W LED. MOSFET Current rating On

Page 8: LED Driver Design - Griffith University · LED Driver Design Refer to AN874 from Microchip Buck Configuration High-Power LED Driver To suit 1W and 3W LED. MOSFET Current rating On

MOSFETCurrent rating

On resistance

Total gate charge

Cost

Page 9: LED Driver Design - Griffith University · LED Driver Design Refer to AN874 from Microchip Buck Configuration High-Power LED Driver To suit 1W and 3W LED. MOSFET Current rating On

Page 10: LED Driver Design - Griffith University · LED Driver Design Refer to AN874 from Microchip Buck Configuration High-Power LED Driver To suit 1W and 3W LED. MOSFET Current rating On

Page 11: LED Driver Design - Griffith University · LED Driver Design Refer to AN874 from Microchip Buck Configuration High-Power LED Driver To suit 1W and 3W LED. MOSFET Current rating On

DiodeSpeed

Dissipation

Cost

Page 12: LED Driver Design - Griffith University · LED Driver Design Refer to AN874 from Microchip Buck Configuration High-Power LED Driver To suit 1W and 3W LED. MOSFET Current rating On

Page 13: LED Driver Design - Griffith University · LED Driver Design Refer to AN874 from Microchip Buck Configuration High-Power LED Driver To suit 1W and 3W LED. MOSFET Current rating On

Page 14: LED Driver Design - Griffith University · LED Driver Design Refer to AN874 from Microchip Buck Configuration High-Power LED Driver To suit 1W and 3W LED. MOSFET Current rating On

Inductor for 1W

Page 15: LED Driver Design - Griffith University · LED Driver Design Refer to AN874 from Microchip Buck Configuration High-Power LED Driver To suit 1W and 3W LED. MOSFET Current rating On

Inductor for 3W

Page 16: LED Driver Design - Griffith University · LED Driver Design Refer to AN874 from Microchip Buck Configuration High-Power LED Driver To suit 1W and 3W LED. MOSFET Current rating On

Current sense

Page 17: LED Driver Design - Griffith University · LED Driver Design Refer to AN874 from Microchip Buck Configuration High-Power LED Driver To suit 1W and 3W LED. MOSFET Current rating On

Time delay

Page 18: LED Driver Design - Griffith University · LED Driver Design Refer to AN874 from Microchip Buck Configuration High-Power LED Driver To suit 1W and 3W LED. MOSFET Current rating On

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