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PDF IL2802 Data sheet ( Hoja de datos )

Número de pieza IL2802
Descripción HIGH-POWER LED DRIVER
Fabricantes IK Semiconductor 
Logotipo IK Semiconductor Logotipo



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TECHNICAL DATA
HIGH-POWER LED DRIVER
FEATURES
2 constant-current output channels
Constant output current invariant to load voltage
change
Maximum output constant current per channel:
360 mA
Thermal protection and flag
Output current adjusted through an external resis-
tor
Schmitt trigger input
5V supply voltage
Package type: Pb-free package with thermal pad
IK2802
Small Outline Package
SOP8
Device
IK2802DT
ORDERING INFORMATION
Operating Tempera-
ture Range
Package
ТА = - 40 ... + 85 С
SOP-8
Shipping
Tape& Reel
Current Accuracy
Between Channels
Between ICs
<±3%
<±6%
Conditions
IOUT = 40mA ~ 360 mA
@ VDS= 0.6V
PRODUCT DESCRIPTION
IK2802 is an instant On/Off LED driver for high power LED applications and exploits to enhance its
output characteristics.
IK2802 provides users with 2-channel constant current ports. Users may adjust the output current up
to 360 mA through an external resistor, Rext, which gives users flexibility in controlling the light intensity of
LEDs. Also, users can precisely adjust LED brightness from 0% to 100% via output control with Pulse Width
Modulation. Alternatively, IK2802 provides one-step current adjustment to make 25% of the output current
via enabling the quarter pin (QT) as “Low”.
Additionally, to ensure the system reliability, IK2802 is built with Thermal Protection (TP) 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 sunk safely in one package.
APPLICATIONS
High-flux LED lighting
Automotive interior lighting
1 2011, February Ver. 03

1 page




IL2802 pdf
IK2802
Electrical Characteristics
Characteristics
Supply Voltage
Sustaining Voltage at OUT pin
Output Current
Input Voltage
for OE, QT
“H” level
“L” level
Output Leakage Current
ERR Output Voltage
ERR Turn On Impedance
Output Current 1
Current Skew 1
Output Current 2
Current Skew 2
Regulation of Output Current vs.
Sustaining Voltage
Regulation of Output Current vs.
Supply Voltage
Pull-up Resistor
Thermal Shutdown temperature
Supply Current
“OFF”
ON
Symbol
VDD
VDS
IOUT
VIH
VIL
IOH
VOL
RDS,(ON),ERR
IOUT1
dIOUT/IOUT
IOUT2
dIOUT/IOUT
%/dVDS
%/dVDD
RN(up)
TXI
TXD
IDD(off) 1
IDD(off) 2
IDD(off) 3
IDD(on) 1
IDD(on) 2
Condition
-
OUT0~OUT1
DC Test Circuit
Ta=-40~85 ºC
Ta=-40~85 ºC
VOH=27V
IOL=+1.0mA
Refer to the Test Circuit for
Electrical Characteristics
VDS=0.8V Rext=1.8kOhm
IOL=340mA
VDS=0.8V
Rext=1.8kOhm
VDS=0.6V Rext=2.4kOhm
IOL=240mA
VDS=0.6V
Rext=2.4kOhm
VDS within 1.0V and 3.0V
VDD within 4.5V and 5.5V
OE, QT
Shutdown Temp.increasing
Reset
Temp.decreasing
Rext=Open,OUT0~OUT1=Off
Rext=2.4kOhm,
OUT0~OUT1=Off
Rext=1.8kOhm,
OUT0~OUT1=Off
Rext=2.4kOhm,
OUT0~OUT1=On
Rext=1.8kOhm,
OUT0~OUT1=On
Min.
4.5
-
40
1.6
GND
-
-
300
-
-
-
-
-
-
300
-
-
-
-
-
-
-
Typ.
5.0
-
-
-
-
-
-
600
340
±1
240
±1
±0.1
±1
600
165
155
4
6
7
5
6
Max.
5.5
27.0
360.0
VDD
0.6
0.5
0.5
800
-
Unit
V
V
mA
V
V
uA
V
Ohm
mA
±3 %
- mA
±3 %
- %/V
- %/V
800 kOhm
- ºC
- ºC
9
10
12 mA
10
10
TEST CIRCUIT FOR ELECTRICAL CHARACTERISTICS
5 2011, February Ver. 03

5 Page





IL2802 arduino
IK2802
11 2011, February Ver. 03

11 Page







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