LM3405AXMY/NOPB National Semiconductor, LM3405AXMY/NOPB Datasheet - Page 18

• Manufacturer Part Number: LM3405AXMY/NOPB
• Description: IC LED DRVR HP CONST CURR 8-MSOP
• Manufacturer: National Semiconductor
• Series: PowerWise®r
• Type: High Power, Constant Currentr

Specifications of LM3405AXMY/NOPB

• Constant Current: Yes
• Topology: PWM, Step-Down (Buck)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Flash/Torch
• Type - Secondary: High Brightness LED (HBLED), White LED
• Frequency: 1.2MHz ~ 1.9MHz
• Voltage - Supply: 3 V ~ 22 V
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP Exposed Pad, 8-HMSOP, 8-eMSOP
• Operating Temperature: -40°C ~ 125°C
• Current - Output / Channel: 1A
• Internal Switch(s): Yes
• Efficiency: 92%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Other names: LM3405AXMYTR

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Bill of Materials for Figure 19
Part ID
U1
C1, Input Cap
C2, Output Cap
C3, Boost Cap
C5, Input Cap
D1, Catch Diode
D2, Boost Diode
D3, Rectifier Diode
D4, Rectifier Diode
D5, Rectifier Diode
D6, Rectifier Diode
L1
R1
LED1
Part Value
1A LED Driver
10µF, 25V, X5R
1µF, 10V, X7R
0.01µF, 16V, X7R
220µF, 25V, electrolytic
Schottky, 0.5V at 1A, V
Schottky, 0.36V at 15mA
Schottky, 0.385V at 500mA
Schottky, 0.385V at 500mA
Schottky, 0.385V at 500mA
Schottky, 0.385V at 500mA
6.8µH, 1.5A
0.27Ω, 0.33W, 1%
1A, White LED
FIGURE 19. LED MR16 Lamp Application
( V
IN
= 12V AC, I
R
= 30V SS13
18
Part Number
LM3405A
ECJ-3YB1E106K
GRM319R71A105KC01D
0805YC103KAT2A
ECE-A1EN221U
CMDSH-3
CMHSH5-2L
CMHSH5-2L
CMHSH5-2L
CMHSH5-2L
SLF6028T-6R8M1R5
ERJ8BQFR27
LXHL-PW09
F
= 0.75A )
Manufacturer
National Semiconductor
Panasonic
Murata
AVX
Panasonic
Vishay
Central Semiconductor
Central Semiconductor
Central Semiconductor
Central Semiconductor
Central Semiconductor
TDK
Panasonic
Lumileds
30015251