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UU28121G-AF5-R 데이터시트(PDF) 3 Page - Unisonic Technologies

부품명 UU28121G-AF5-R
상세설명  CMOS IC
PDF  6 Pages
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제조업체  UTC [Unisonic Technologies]
홈페이지  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UU28121G-AF5-R 데이터시트(HTML) 3 Page - Unisonic Technologies

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UU28121
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
3 of 6
www.unisonic.com.tw
QW-R135-001.C
ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
VCC Pin Voltage
VIN
-0.3 ~ 6.5
V
SW Pin Voltage
VSW
-0.3 ~ 30
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
270
°C/W
Junction to Case
θJC
110
°C/W
Note: θJA is measured with the PCB copper are (need connect to GND of the UTC UU28121) of approximately 1 in
2
(Multi-layer).
ELECTRICAL CHARACTERISTICS
(VIN=5V, VEN=5V, IOUT=20mA, TA=25°C, unless otherwise specified)
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
0.2
V
Step-Up Voltage Adjust Range
VOUT
3
28
V
Quiescent Current
ICCQ
IOUT=0mA, VFB=1.5V
150
250
μA
Shutdown Current
ISD
VEN=0V
1
4
μA
FB Pin Voltage
VFB
1.213 1.238 1.263
V
FB Pin Current
IFB
VFB=1.3V
±100
nA
Line Regulation
VIN=2.5~5.5V, IOUT=20mA
0.2
%
Load Regulation
VIN=5V, IOUT=1mA~400mA
0.2
%
Switching Frequency
FOSC
900
1200
1500
KHz
Maximum Duty
DMAX
87
90
%
N-Channel MOSFET Current Limit
ILIM
Duty=50%
1.6
A
VCC=3V, ISW=1A
600
MOSFET On-resistance
RDS(on)
VCC=5V, ISW=1A
500
mΩ
SW Leakage Current
ISWL
VSW=28V, VFB=1.5V
1
μA
EN High-level Input Voltage
VIH
1.4
V
EN Low-level Input Voltage
VIL
0.4
V
EN Hysteresis
Hys
200
mV
Thermal Shutdown
TDS
150
°C
Thermal Shutdown Hysteresis
TSH
35
°C



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