LM3549 Datasheet, PDF (19/25 Pages) National Semiconductor (TI) – Evaluation Kit high power LED driver with up to 700mA

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LM3549
SNVS640A – AUGUST 2010 – REVISED MAY 2013
BIT[6:5] SHORT[1:0]
LED short fault.
BIT
0
0
0
1
1
0
1
1
FAULT
No fault
Red short
Green short
Blue short
19h and 1AH USR1 and USR2
User registers 1 and 2. Can be used to store any user data. No affect on the device.
40h EEPROM CONTROL
EEPROM Control register. This register is used to program EEPROM. EEPROM programming is described in the
EEPROM Programming chapter.
Symbol
CIN
COUT
L1
Table 2. Recommended External Components
Symbol Explanation
Input Capacitor
Output Capacitor
Switcher Inductor
Value
10 µF,6.3V/10V
4.7 µF, 6.3V/10V
2.2 µH, 1900 mA
Type
X7R
X7R
Example
TDK VLF4014ST-2R2M1R9
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