LM3405AXMYEVAL National Semiconductor, LM3405AXMYEVAL Datasheet - Page 2

• Manufacturer Part Number: LM3405AXMYEVAL
• Description: BOARD EVAL FOR LM3405 8MSOP
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM3405AXMYEVAL

• Current - Output / Channel: 750mA
• Outputs And Type: 1, Non-Isolated
• Features: Dimmable
• Voltage - Input: 5 ~ 18V
• Utilized Ic / Part: LM3405
• Kit Contents: Board, Datasheet
• Svhc: No SVHC (15-Dec-2010)
• Kit Features: Cycle-by-Cycle Current Limit,
• Rohs Compliant: No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Lead Free Status / Rohs Status: Supplier Unconfirmed

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Four Methods of Deriving V
The standard evaluation board derives V
the “Shunt Zener” configuration (shown on front page). De-
pending on the specific application, V
derived by loading and no-loading external components on
the evaluation PCB. The following four schematics show
methods to derive V
2. V
put voltages (V
BOOST
Derived from V
LED
) that are between 3V - 5.5V.
BOOST
.
OUT
Use this configuration for out-
BOOST
BOOST
voltage can be
BOOST
voltage using
2
1. V
front page schematic) This configuration is recommended
for distributed input voltages that have a wide voltage varia-
tion. The shunt zener acts as basic voltage regulator for the
V
5.1V, R2 = (V
BOOST
BOOST
voltage. D4 should have a typical value of 3.6V to
Derived from Shunt Zener Configuration (see
IN
- V
zener
)/4 mA, C4 = 0.10 µF.
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