LM3431AQMHX/NOPB National Semiconductor, LM3431AQMHX/NOPB Datasheet - Page 8

• Manufacturer Part Number: LM3431AQMHX/NOPB
• Description: IC LED DRVR HP CONS CURR 28TSSOP
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: High Power, Constant Currentr

Specifications of LM3431AQMHX/NOPB

• Constant Current: Yes
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 3
• Internal Driver: No
• Type - Primary: Automotive
• Type - Secondary: High Brightness LED (HBLED)
• Frequency: 651kHz ~ 1.1MHz
• Voltage - Supply: 4.5 V ~ 36 V
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 200mA
• Internal Switch(s): Yes
• Efficiency: 88%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Other names: LM3431AQMHX

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Normalized Switching Frequency
vs. Temperature (700 kHz)
Line Transient Response
LED Ripple Current
30041112
30041114
30041110
8
LED Current = 140 mA x 3, LED Vf = 25V
Dimming Transient Response
Efficiency vs. Input Voltage
NDRV Waveforms
30041113
30041115
30041111