LM3409MYX National Semiconductor Corporation, LM3409MYX Datasheet - Page 7

• Manufacturer Part Number: LM3409MYX
• Description: Pfet Buck Controller For High Power Led Drives
• Manufacturer: National Semiconductor Corporation

20kHz 50% EN pin PWM dimming (rising edge)
V
V
O
O
20kHz 50% EN pin PWM dimming
= 42V (12 LEDs); V
= 42V (12 LEDs); V
Internal EN Pin PWM Dimming
V
O
= 17V (5 LEDs); V
IN
IN
= 48V (Note 9)
= 48V (Note 9)
IN
= 24V
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100kHz 50% External FET PWM dimming (rising edge)
100kHz 50% External FET PWM dimming
V
V
External Parallel FET PWM Dimming
O
O
= 42V (12 LEDs); V
= 42V (12 LEDs); V
V
O
= 17V (5 LEDs); V
IN
IN
= 48V (Note 9)
= 48V (Note 9)
IN
= 24V
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