LM3502SQ-35/NOPB National Semiconductor, LM3502SQ-35/NOPB Datasheet - Page 10

• Manufacturer Part Number: LM3502SQ-35/NOPB
• Description: IC LED DRIVR WHITE BCKLGT 16-LLP
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: Backlight, White LEDr

Specifications of LM3502SQ-35/NOPB

• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 2
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 800kHz ~ 1.2MHz
• Voltage - Supply: 2.5 V ~ 5.5 V
• Voltage - Output: 33 V ~ 34 V
• Mounting Type: Surface Mount
• Package / Case: 16-LLP
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 750mA
• Internal Switch(s): Yes
• Efficiency: 80%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM3502SQ-35; LM3502SQ-35TR

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Typical Performance Characteristics
Efficiency: η = P
Cntrl Pin Current vs Cntrl Pin Voltage
En1 Pin Current vs En1 Pin Voltage
6 LED Efficiency vs LED Current
OUT
/P
IN
= [(V
OUT
– V
Fb
) * I
OUT
]/[V
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IN
* I
IN
]. T
A
( Circuit in Figure 1: L = DO1608C-223 and D = MBRM140T3.
= 25˚C, unless otherwise stated.) (Continued)
10
Maximum Duty Cycle vs Temperature
En2 Pin Current vs En2 Pin Voltage
4 LED Efficiency vs LED Current
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