KAB3405T_08 Datasheet, PDF (1/6 Pages) KEC(Korea Electronics) – Step Up Type DC/DC Converter for White LED

SEMICONDUCTOR
TECHNICAL DATA
Step Up Type DC/DC Converter for White LED
KAB3405T is a high efficient Step-Up Type DC/DC Converter specially
designed for constant current drive of White LED. This IC can drive 2-10
white LEDs connected series using a Li-ion Battery. This IC contains N-ch
MOS-FET Transistor for Coil-Switching, and LED Current (I_F) is set with an
external resistor.
KAB3405T
BICD LINEAR INTEGRATED CIRCUIT
Features
Variable LED Current I_F is set with a external resistor
: 20 mA (Typ.) @ R_SENS = 15
High Efficiency
Output Over Voltage Shutdown
Built in output over voltage protect circuit.
Switching Frequency : 1.0 MHz (Typ.)
Applications
Back light white LEDs in LCD of PDA, Cellular Phone
Handy Terminal Equipment.
Basic Application Circuit
2008. 3. 10
Revision No : 2
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