UL23EB [UTC]
HIGH ACCURACY LINEAR CONSTANT CURRENT LED DRIVER;
| 型号： | UL23EB |
| 厂家： | 
Unisonic Technologies |
| 描述： | HIGH ACCURACY LINEAR CONSTANT CURRENT LED DRIVER 驱动 |
| 文件： | 总8页 (文件大小：259K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
UL23EB
Preliminary
CMOS IC
HIGH ACCURACY LINEAR
CONSTANT CURRENT LED
DRIVER
DESCRIPTION
The UL23EB is a linear constant current IC that supports the
adjust brightness or color temperature in 3 grades. The application
scheme is simple and the cost is low.
HSOP-8
In the dimming application of UL23EB, User can change the size
of the output current by turn on/off the power switch, that adjust
brightness of LED lights. Changing the REXT external resistance
Adjustment of brightness ratio.
In the adjust color temperature application of UL23EB, User can
change the state of the two output ports by turn on/off the power
switch, that adjust the color temperature through the light of two
different colored LED lights. Changing the REXT external resistance
can adjustment the output power.
FEATURES
* No stroboscopic
* Input voltage 220VAC,110VAC
* Adjustable output current, max 60mA
* Inter-chip current deviation < ±4%
* Application system no EMI problems
* Over temperature Reduced Current
* Supports the adjust brightness in 3 grades
* Supports the adjust color temperature in 3 grades
* Effectively switching time from 0.3S ~ 3S
ORDERING INFORMATION
Ordering Number
Lead Free
Package
HSOP-8
Packing
Tape Reel
Halogen Free
UL23EBG-SH2-R
UL23EBL-SH2-R
www.unisonic.com.tw
Copyright © 2018 Unisonic Technologies Co., Ltd
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UL23EB
Preliminary
CMOS IC
MARKING
PIN CONFIGURATION
1
2
8
7
6
VDD
VCC
VIN
NC
GND
REXT1 3
REXT2 4
OUT1
9
5 OUT2
PIN DESCRIPTION
PIN NO. PIN NAME
DESCRIPTION
1
2
3
4
5
6
7
8
9
VDD
VCC
Analog circuit power port
Digital circuit power port
Output Current Setting Pin 1.
Output Current Setting Pin 2.
Constant flow output port 2
Constant flow output port 1
No connect
REXT1
REXT2
OUT2
OUT1
NC
VIN
Power input port
GND
Ground
UNISONIC TECHNOLOGIES CO., LTD
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UL23EB
Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
VOUT1/VOUT2
IOUT
RATINGS
-0.5 ~ 500
5 ~ 60
UNIT
V
OUT Pin Voltage
OUT Pin Current
VIN Pin Voltage
REXT Pin Voltage
VDD Pin Voltage
VCC Pin Voltage
mA
V
VIN
-0.5 ~ 500
-0.5 ~ 8
VREXT1/VREXT2
VVDD
V
-0.5 ~ 8
V
VVCC
-0.5 ~ 8
V
Working temperature
Storage temperature
TOPR
-40 ~ +150
-50 ~ +150
°C
°C
TSTQ
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
VDD/VCC
TEST CONDITIONS
MIN
TYP
6.8
MAX UNIT
Power of IC Pin Voltage
OUT Pin Voltage
V
V
V
VOUT1/VOUT2 IOUT=30mA
2.5
500
5
OUT Pin Withstanding Voltage
Output Current
VDS-BV
IOUT1/IOUT2
IQ
IOUT=0
60
mA
mA
V
Quiescent Current
VOUT=10V REXT No Collection
0.16
0.6/0.3
± 4
0.25
REXT Pin Voltage
VREXT1/VREXT2 VIN=20V,VOUT1=VOUT2=10V
Output Current Accuracy
Temperature Compensate Point
DIOUT
TSC
IOUT=5~60mA
%
130
°C
UNISONIC TECHNOLOGIES CO., LTD
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UL23EB
Preliminary
CMOS IC
TYPICAL APPLICATION CIRCUIT
The UL23EB is a linear constant current IC that supports the adjust brightness or color temperature in 3 grades.
The output current can be adjusted from 5mA to 60mA, and constant current accuracy up to ± 4%.
In the Adjust Brightness Mode application of UL23EB,User can change the size of the output current by turn on/off
the power switch, that adjust brightness of LED lights. Changing the REXT external resistance Adjustment of
brightness ratio.
0.6
Open the switch for the 1st time, during constant current：I1=
RREXT2
0.3
Open the switch for the 2nd time, during constant current：I2=
RREXT2
0.6
Open the switch for the 3rd time, during constant current：I3=
RREXT1+RREXT2
RREXT2
The dimming ratio is 100%，50%，X%,
X%=
RREXT1+RREXT2
Typical Applications：RREXT1=180Ω，RREXT2=20Ω，0.3S < Switching Period < 3S
Open the switch for the 1st time, IOUT=30mA；
Open the switch for the 2nd time, IOUT=15mA；
Open the switch for the 3rd time, IOUT=3mA；
The dimming ratio is 100%, 50%, 10%
When the switching period > 3S, System reset.
UNISONIC TECHNOLOGIES CO., LTD
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UL23EB
Preliminary
CMOS IC
TYPICAL APPLICATION CIRCUIT (Cont.)
The UL23EB is a linear constant current IC that supports the adjust brightness or color temperature in 3 grades.
The output current can be adjusted from 5mA to 60mA, and constant current accuracy up to ± 4%.
In the Adjust Brightness Mode application of UL23EB,User can change the size of the output current by turn on/off
the power switch, that adjust brightness of LED lights. Changing the REXT external resistance Adjustment of
brightness ratio.
0.6
Open the switch for the 1st time, during constant current：I1=
RREXT1 RREXT2
0.3
Open the switch for the 2nd time, during constant current：I2=
RREXT2
0.6
Open the switch for the 3rd time, during constant current：I3=
RREXT2
RREXT2
The dimming ratio is 100%，50%，X%,
X%=
RREXT1+RREXT2
Typical Applications：RREXT1=180Ω，RREXT2=20Ω，0.3S < Switching Period < 3S
Open the switch for the 1st time, IOUT2=3mA；
Open the switch for the 2nd time, IOUT1=15mA；
Open the switch for the 3rd time, IOUT1=30mA；
The dimming ratio is 10%, 50%, 100%
When the switching period > 3S, System reset.
UNISONIC TECHNOLOGIES CO., LTD
5 of 8
QW-R125-071.c
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UL23EB
Preliminary
CMOS IC
TYPICAL APPLICATION CIRCUIT (Cont.)
In the adjust color temperature application of UL23EB, User can change the state of the two output ports by turn
on/off the power switch, that adjust the color temperature through the light of two different colored LED lights.
Changing the REXT external resistance can adjustment the output power.
0.6
Open the switch for the 1st time, during constant current：I1=
RREXT2
0.3
0.3
Open the switch for the 2nd time, during constant current：I2=
RREXT1 RREXT2
0.6
Open the switch for the 3rd time, during constant current：I3=
RREXT1
Typical Applications：RREXT1=RREXT2=30Ω, 0.3S < Switching Period < 3S
Open the switch for the 1st time, IOUT2=30mA；
Open the switch for the 2nd time, IOUT1=I OUT2=15mA；
Open the switch for the 3rd time, I OUT1=30mA；
When the switching period > 3S, System reset.
UNISONIC TECHNOLOGIES CO., LTD
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UL23EB
Preliminary
CMOS IC
MULTIPLE IC PARALLEL SCHEMES
UL23EB support multiple IC parallel schemes, If the output power is too large that the IC over temperature, Multiple
IC parallel schemes can be adopted.
Typical Applications：RREXT1=RREXT3=RREXT5=180Ω，RREXT2=RREXT4=RREXT6=20Ω, 0.3S < Switching Period < 3S；
Open the switch for the 1st time, IOUT=90mA；
Open the switch for the 2nd time, IOUT=45mA；
Open the switch for the 3rd time, IOUT=9mA；
The dimming ratio is 100%, 50%, 10%
When the switching period > 3S, System reset.
UNISONIC TECHNOLOGIES CO., LTD
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QW-R125-071.c
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UL23EB
Preliminary
CMOS IC
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all UTC products described or contained herein.
UTC products are not designed for use in life support appliances, devices or systems where malfunction
of these products can be reasonably expected to result in personal injury. Reproduction in whole or in
part is prohibited without the prior written consent of the copyright owner. UTC reserves the right to
make changes to information published in this document, including without limitation specifications and
product descriptions, at any time and without notice. This document supersedes and replaces all
information supplied prior to the publication hereof.
UNISONIC TECHNOLOGIES CO., LTD
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