TECHNICAL DATA
HIGH-POWER LED DRIVER
IK2804
FEATURES
4 constant-current output channels
Constant output current invariant to load voltage
change
Small Outline Package
Maximum output constant current per channel:
240mA
Excellent output current accuracy:
between channels: <±3% (max.), and
between ICs: <±6% (max.)
Output current adjusted through an external
resistor
ESOP8
Schmitt trigger input
5V supply voltage
Package type: Pb-free ESOP8 with thermal pad
ORDERING INFORMATION
Operating
Temperature Range
ТА = - 40 ... + 85 С
Device
IK2804DT
Package
Shipping
Tape& Reel
ESOP-8
Current Accuracy
Conditions
IOUT = 40 ~ 240 mA
Between Channels
<±3%
Between ICs
<±6%
PRODUCT DESCRIPTION
IK2804 is an instant On/Off LED driver for high power LED applications and exploits to enhance
its output characteristics. At IK2804 output stage, four regulated current ports are designed to provide
uniform and constant current sinks for driving LEDs within a large range of VF variations.
IK2804 provides users 4-channel constant current ports. Users may adjust the output current
from 40 mA up to 240mA through an external resistor, Rext, which gives users flexibility in controlling
the light intensity of LEDs. In addition, users can precisely adjust LED brightness from 0% to 100%
via output enable
with Pulse Width Modulation.
Additionally, to ensure the system reliability, IK2804 is built with TP (Thermal Protection) function
and thermal pad. The TP function protects IC from over temperature (165°C). Also, the thermal pad
enhances the power dissipation. As a result, a large amount of current can be handled safely in one
package.
APPLICATIONS
High-flux LED lighting
Automotive interior lighting
LCD backlight
Photocopier
Scanner
2011, February Ver. 03
1
IKSEMICON [ IK SEMICON CO., LTD ]
