LM3414MR/NOPB National Semiconductor, LM3414MR/NOPB Datasheet - Page 7

• 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: -

Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which operation of the
device is intended to be functional. For guaranteed specifications and test conditions, see the Electrical Characteristics.
Note 2: The human body model is a 100pF capacitor discharged through a 1.5 kΩ resistor into each pin.
Note 3: Tested on a 4 layer JEDEC board. Four vias provided under the exposed pad. See JESD51-5 and JESD51-7. The value of the θ
is specifically dependent on the PCB trace area, trace material, and the number of layers and thermal vias. For improved thermal resistance and power dissipation
for the LLP package, refer to Application Note AN-1187.
Note 4: Typical specification represent the most likely parametric norm at 25°C operation.
Note 5: VCC provides self bias for the internal gate drive and control circuits. Device thermal limitations limit external loading to the pin.
Symbol
T
THERMAL RESISTANCE
θ
JA
SD-HYS
Parameter
Thermal Shutdown Temperature
Hysteresis
Junction to Ambient,
0 LFPM Air Flow (Note 3)
Conditions
T
ePSOP-8 package
LLP-8 package
J
Falling
7
Min
Typ
10
45
54
JA
for the LLP package
Max
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Units
°C/W
°C/W
°C