LM3410XSDSEPEV National Semiconductor, LM3410XSDSEPEV Datasheet
LM3410XSDSEPEV
Manufacturer Part Number
LM3410XSDSEPEV
Description
BOARD EVALUATION FOR LM3410
Manufacturer
National Semiconductor
Series
PowerWise®r
Specifications of LM3410XSDSEPEV
Outputs And Type
1, Non-Isolated
Voltage - Output
3 ~ 24V
Features
Thermal Shutdown Protection
Voltage - Input
2.7 ~ 5.5V
Utilized Ic / Part
LM3410
Kit Contents
Board, Datasheet
Svhc
No SVHC (15-Dec-2010)
Kit Features
Converts 2.7V To 5.5V Input And Illuminates A 320mA HB/OLED Using The LM3410X
Mcu Supported Families
LM3410
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Current - Output / Channel
-
© 2011 National Semiconductor Corporation
LM3410X SEPIC 6-Pin LLP
Demo Board
Introduction
The demo board included in this shipment converts 2.7V to
5.5V input, and illuminates a 320mA HB/OLED using the
LM3410X 1.6MHz LED driver switching converter. This is a
2-layer board using the bottom layer as a Ground plane.
A bill of materials below describes the parts used on this demo
board. A schematic and layout have also been included below
Pin Descriptions - 6 Pin LLP
DAP
Pin
1
2
3
4
5
6
PGND
AGND
Name
GND
DIM
VIN
SW
FB
Function
Power ground pin. Place PGND and output capacitor GND close together.
Supply voltage for power stage, and input supply voltage.
Dimming & shutdown control input. Logic high enables operation. Duty Cycle from 0 to 100%. Do not
allow this pin to float or be greater than VIN + 0.3V.
Feedback pin. Connect FB to external resistor divider to set output voltage.
Signal ground pin. Place the bottom resistor of the feedback network as close as possible to this pin &
pin 4.
Output switch. Connect to the inductor, output diode.
Signal & Power ground. Connect to pin 1 & pin 5 on top layer. Place 4-6 vias from DAP to bottom layer
GND plane.
LM3410X 6-Pin LLP HB/OLED Schematic
300489
Pinout
National Semiconductor
Application Note 1775
Matthew Reynolds
April 1, 2011
along with measured performance characteristics. The above
restrictions for the input voltage are valid only for the demo
board as shipped with the demo board schematic below.
Operating Conditions
V
V
I
O
IN
O
= 320mA
≊
= 2.7V to 5.5V
V
F
+ V
FB
30048902
≊
3.2V + 0.198V
≊
3.4V
30048901
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LM3410XSDSEPEV Summary of contents
Page 1
... Output switch. Connect to the inductor, output diode. Signal & Power ground. Connect to pin 1 & pin 5 on top layer. Place 4-6 vias from DAP to bottom layer DAP GND GND plane. © 2011 National Semiconductor Corporation National Semiconductor Application Note 1775 Matthew Reynolds April 1, 2011 along with measured performance characteristics ...
Page 2
Bill Of Materials LM3410X Part Input Cap C2 Output Cap C3 Cap D1, Catch Diode L1 & HB/OLED PCB Layout www.national.com Part Value Manufacturer 2.8A I LED Driver SW 10µF, 6.3V, X5R 4.7µF, 25V, ...
Page 3
3 www.national.com ...
Page 4
... For more National Semiconductor product information and proven design tools, visit the following Web sites at: www.national.com Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www ...