LM3409MYX National Semiconductor Corporation, LM3409MYX Datasheet - Page 20
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LM3409MYX
Manufacturer Part Number
LM3409MYX
Description
Pfet Buck Controller For High Power Led Drives
Manufacturer
National Semiconductor Corporation
Datasheet
1.LM3409MYX.pdf
(30 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM3409MYX
Manufacturer:
NS/国半
Quantity:
20 000
www.national.com
8. INPUT UVLO
Solve for R
The closest 1% tolerance resistor is 49.9 kΩ therefore V
is:
Solve for R
Design #1 Bill of Materials
Qty
1
2
1
1
1
1
1
1
1
1
1
UV2
UV1
:
:
Part ID
LM3409HV
C
C
C
Q1
D1
L1
R
R
R
R
IN1
F
OFF
OFF
UV1
UV2
SNS
, C
IN2
Part Value
Buck controller
2.2µF X7R 10% 100V
1.0µF X7R 10% 16V
470pF X7R 10% 50V
PMOS 100V 3.8A
Schottky 100V 3A
15 µH 20% 4.2A
24.9kΩ 1%
6.98kΩ 1%
49.9kΩ 1%
0.1Ω 1% 1W
HYS
20
The closest 1% tolerance resistor is 6.98 kΩ therefore V
ON
The chosen components from step 8 are:
9. IADJ CONNECTION METHOD
The IADJ pin is left open forcing V
10. PWM DIMMING METHOD
PWM dimming signal pair is applied to the EN pin and GND
at f
is:
DIM
= 1 kHz.
Manufacturer
NSC
MURATA
TDK
TDK
ZETEX
VISHAY
TDK
VISHAY
VISHAY
VISHAY
VISHAY
ADJ
Part Number
LM3409HVMY
GRM43ER72A225KA01
L
C1608X7R1C105K
C1608X7R1H471K
ZXMP10A18KTC
SS3H10-E3/57T
SLF12565T-150M4R2
CRCW060324K9FKEA
CRCW06036K98FKEA
CRCW060349K9FKEA
WSL2512R1000FEA
= 1.24V.
TURN-