LM3409MY/NOPB National Semiconductor, LM3409MY/NOPB Datasheet - Page 7

• Manufacturer Part Number: LM3409MY/NOPB
• Description: IC LED DRIVR HIGH BRIGHT 10-MSOP
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: HBLED Driverr

Specifications of LM3409MY/NOPB

• Constant Current: Yes
• Topology: PWM, Step-Down (Buck)
• Number Of Outputs: 1
• Internal Driver: No
• Type - Primary: Automotive
• Type - Secondary: High Brightness LED (HBLED)
• Voltage - Supply: 6 V ~ 42 V
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP Exposed Pad, 10-HMSOP, 10-eMSOP
• Operating Temperature: -40°C ~ 125°C
• Internal Switch(s): Yes
• Efficiency: 97%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Frequency: -
• Current - Output / Channel: -
• Other names: LM3409MYTR

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
= 48V
IN
= 24V
(Note
(Note
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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
= 48V
IN
= 24V
(Note
(Note
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9)
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