Datasheet

Design Calculations

www.ti.com

Maximum average input current:

(46)

Duty cycle:

(47)

Maximum peak input current:

(48)

14.3 SW FET

Maximum reflected voltage:

(49)

Maximum drain-to-source voltage:

(50)

Maximum peak MosFET current:

(51)

Maximum RMS MosFET current:

(52)

Maximum power dissipation:

(53)

14.4 Current Sense

Current Limit:

(54)

Sense resistor:

(55)

Power dissipation:

(56)

Resulting component choice:

(57)

AN-2090 LM3448 -120VAC, 6W Isolated Flyback LED Driver SNOA554C–October 2011–Revised May 2013

Submit Documentation Feedback