LM3502SQ-35/NOPB National Semiconductor, LM3502SQ-35/NOPB Datasheet - Page 11

• 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

Typical Performance Characteristics
( Circuit in Figure 1: L = DO1608C-223 and D = MBRM140T3.
Efficiency: η = P
/P
= [(V
– V
) * I
]/[V
* I
]. T
= 25˚C, unless otherwise stated.) (Continued)
OUT
IN
OUT
Fb
OUT
IN
IN
A
V
Pin Current vs V
Pin Voltage
Power NMOS R
(Figure 2: N1) vs V
OUT1
OUT1
DS(ON)
IN
20131719
20131720
NMOS R
(Figure 2: N2) vs V
PMOS R
(Figure 2: P1) vs V
DS(ON)
IN
DS(ON)
IN
20131722
20131721
Feedback Voltage vs Temperature
20131725
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