TECHNICAL DATA
1
2013January, Ver. 00
HIGH-VOLTAGE LED DRIVER WITH
BUILD-IN MOSFET SWITCH
FEATURES
Operating Temperature Range -40...+85 ºс
ON-Resistance of The MOSFET Switch 210 Ohm
OFF-State Breakdown Voltage of the
MOSFET Switch Not Less 500 V
APPLICATIONS
Decorative lighting
Low Power Light Fixtures
LED Signs and Displays
Architectural Lighting
Incandescent Replacement
Industrial Lighting
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
Packing
IK2306PT
Т
А
= - 40 ... + 85 С
SOT-89
Tape & Reel
PRODUCT DESCRIPTION
IK2306 is high-voltage LED driver control ICs with build-in MOSFET switch and purposed for
LED lighting control. IC allows efficient operation of LED strings from voltage sources ranging up to
400 VDC. The IK2306 include an internal high-voltage switching MOSFET controlled with fixed off-
time T
OFF
of approximately 10µs. The LED string is driven at constant current, thus providing
constant light output and enhanced reliability. The output current is internally fixed 50mA for
IK2306. The peak current control scheme provides good regulation of the output current
throughout the universal AC line voltage range of 85 to 264V AC or DC input voltage of 20 to 400V.
IK2306
1
2
3
1.Drain
2.GND
3.V
DD
SOT-89
IK2306
2
2013 January, Ver. 00
BLOCK DIAGRAM
Figure
PIN DESCRIPTION
Pin No.
Symbol
Description
1
Drain
This is a drain terminal of the output switching MOSFET and a
linear Regulator input.
2
GND
This is a common connection for all circuits
3
V
DD
This is a power supply pin for all control circuits.
Bypass this pin with a 0.1uF low impedance capacitor.
GND
DRAIN
V
DD
HVNMOS
NMOS
S Q
R Q
RC-oscillator
(T
OFF
= 10 µS)
VREF1
-
+
R
Reference
voltage
source
VREF2
-
+
R1
R2
&
D2
D3
D4
D1
Delay line
Regulator