LM3414MR/NOPB National Semiconductor, LM3414MR/NOPB Datasheet - Page 18

• Manufacturer Part Number: LM3414MR/NOPB
• Description: IC LED DRIVER BUCK 1A 8-PSOP
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: Automotive, High Brightness (HBLED)r

Specifications of LM3414MR/NOPB

• Constant Current: Yes
• Topology: Low Side, PWM, Step-Down (Buck)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Automotive, General Purpose
• Type - Secondary: High Brightness LED (HBLED)
• Frequency: 250kHz ~ 1MHz
• Voltage - Supply: 4.5 V ~ 42 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width) Exposed Pad
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 1A
• Internal Switch(s): Yes
• Efficiency: 96%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -

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Designation
Additional Application Circuit
C
R
R
C
U1
D
L
IADJ
VCC
FS
IN
1
1
FIGURE 9. Application Circuit of LM3414/14HV with Temperature Fold-Back Circuitry and PWM Dimming
Cap MLCC 100V 2.2 µF X7R
Cap MLCC 16V 1.0 µF X5R
Schottky Diode 100V 2.0A
Chip Resistor 3.24 kΩ 1%
Chip Resistor 40.2 kΩ 1%
LM3414 / LM3414HV
Inductor 47 µH
LED Driver IC
Description
FIGURE 8. LM3414/14HV Design Example (I
Bill of Materials
8 x 8 x 4.9 (mm)
ePSOP-8
Package
SMP
1210
18
603
603
603
OUT
GRM39X5R105K16D52K
GRM32ER72A225KA35L
LM3414 / LM3414HV
MMD-08EZ-470M-SI
Manufacture Part #
= 500 mA)
CRCW06033241F
CRCW06034022F
SS2PH10-M3
Mag.Layers
Vendor
Vishay
Murata
Murata
Vishay
Vishay
30124828
NSC
30124829