KAB3405T Datasheet, PDF (1/7 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.
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.
KAB3405T
BICD LINEAR INTEGRATED CIRCUIT
E
K
B
K
1
6
2
5
3
4
DIM
A
B
C
D
E
F
G
H
I
J
K
L
MILLIMETERS
2.9+_ 0.2
1.6+0.2/-0.1
0.70+_ 0.05
0.4+_ 0.1
2.8+0.2/-0.3
1.9+_ 0.2
0.95
0.16+_ 0.05
0.00-0.10
0.25+0.25/-0.15
0.60
0.55
H
J
J
TS6
Basic Application Circuit
2007. 4. 2
Revision No : 0
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