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UU28141G-AG6-R 데이터시트(PDF) 3 Page - Unisonic Technologies

부품명 UU28141G-AG6-R
상세설명  CMOS IC
PDF  5 Pages
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제조업체  UTC [Unisonic Technologies]
홈페이지  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UU28141G-AG6-R 데이터시트(HTML) 3 Page - Unisonic Technologies

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UU28141
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
3 of 5
www.unisonic.com.tw
QW-R125-040.B
ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
VCC Pin Voltage
VIN
-0.3 ~ 6
V
SW Pin Voltage
VSW
-0.3 ~ 33
V
OVP Pin Voltage
VOVP
-0.3 ~ 33
V
EN, FB Pins Voltage
-0.3 ~ VIN+0.3
V
Operating Junction Temperature
TOPR
-40 ~ +125
°C
Storage Temperature Range
TSTG
-65 ~ +150
°C
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.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
RATINGS
UNIT
Input Supply Voltage
VIN
2.5 ~ 5.5
V
Ambient Temperature
TA
-40 ~ +125
°C
THERMAL CHARACTERISTICS
PARAMETER
SYMBOL
RATINGS
UNIT
Junction To Ambient
θJA
250
°C/W
Junction to Case
θJC
180
°C/W
Note: θJA is measured with the PCB copper are (need connect to GND of the UTC UU28141) of approximately 1 in
2
(Multi-layer).
ELECTRICAL CHARACTERISTICS (VIN=5V, VEN=5V, IOUT=20mA, TA=25°C)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP MAX
UNIT
Input Voltage Range
VIN
2.5
5.5
V
Input UVLO
UVLO
Rising
2.25
2.45
V
UVLO Hysteresis
0.1
V
OVP Sense Voltage
VOV
27.5
29
V
Quiescent Current
ICCQ
VFB=0.5V, IOUT=0mA
200
400
μA
Supply Current
IIN
VFB=0V, Switching
1
2
mA
Shutdown Current
ISD
VEN=0V, TEN>20mS
1
4
μA
FB Pin Voltage
VFB
0.285 0.300 0.315
V
FB Pin Current
IFB
±100
nA
Load Regulation
1mA<IOUT<20mA
1
%
Line Regulation
3V<VIN<4.3V
1
%
EN Pin Voltage High
VENH
1.4
V
EN Pin Voltage Low
VENL
0.4
V
EN Hysteresis
0.1
V
EN Pin Sink Current
IIH
1
μA
Switching Frequency
FOSC
0.75
1
1.25
MHz
CL
1.4
A
N-Channel MOSFET Current Limit (Note)
CL
Duty on 50%
1.9
A
Switching Maximum Duty
DMAX
92
%
Dimming Clock Rate
0.2
200
KHz
N-Switch RDS (ON)
RDS(ON)-N VIN=3.6V
0.5
1.0
Ω
Thermal Shutdown
TSD
155
°C
Thermal Shutdown Protection Hysteresis
TSH
25
°C
Note: Guaranteed by design.



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