LM3409HVMY/NOPB National Semiconductor, LM3409HVMY/NOPB Datasheet - Page 26

• Manufacturer Part Number: LM3409HVMY/NOPB
• Description: IC LED DRIVR HIGH BRIGHT 10-MSOP
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: HBLED Driverr

Specifications of LM3409HVMY/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 ~ 75 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: LM3409HVMYTR

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DESIGN #5: 75°C THERMAL FOLDBACK APPLICATION FOR 16 LEDS
Design #5 Bill of Materials
*U2 could be replaced with a 500kΩ NTC thermistor connected from IADJ to GND.
Qty
1
1
2
1
1
1
1
1
1
1
1
1
1
LM3409QHV
LM3409HV/
C
Part ID
IN1
R
C
R
R
R
C
U1
Q1
D1
C
L1
OFF
OFF
UV1
UV2
SNS
, C
F2
F
IN2
Analog Temperature Sensor
2.2µF X7R 10% 100V
470pF X7R 10% 50V
1.0µF X7R 10% 16V
0.1µF X7R 10% 16V
PMOS 100V 3.8A
Schottky 100V 3A
15 µH 20% 4.7A
Buck controller
0.07Ω 1% 1W
Part Value
24.9kΩ 1%
6.98kΩ 1%
49.9kΩ 1%
26
Manufacturer
COMCHIP
MURATA
VISHAY
VISHAY
VISHAY
VISHAY
ZETEX
NSC
NSC
TDK
TDK
TDK
TDK
LM3409HVMY/LM3409QHVMY
GRM43ER72A225KA01L
CRCW060324K9FKEA
CRCW06036K98FKEA
CRCW060349K9FKEA
SLF12575T-150M4R7
WSL2512R0700FEA
C1608X7R1C105K
C1608X7R1C104K
C1608X7R1H471K
ZXMP10A18KTC
SS3H10-E3/57T
Part Number
LM94022
30085624