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UD38501G-SH2-R 数据表(PDF) 3 Page - Unisonic Technologies

部件名 UD38501G-SH2-R
功能描述  Input Under/Over Voltage Lockout
PDF  7 Pages
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制造商  UTC [Unisonic Technologies]
网页  http://www.utc-ic.com
标志 UTC - Unisonic Technologies

UD38501G-SH2-R 数据表(HTML) 3 Page - Unisonic Technologies

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UD38501
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
3 of 7
www.unisonic.com.tw
QW-R115-009.A
ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VIN
-0.3 ~ +42
V
Switch Node Voltage
VSW
-0.3 ~ VIN+0.3
V
Boost Voltage
VBS
VSW-0.3 ~ VSW+ 6
V
All Other Pins Voltage
-0.3 ~ +6
V
Lead Temperature
TL
260
°C
Junction Temperature
TJ
150
°C
Storage Temperature
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
8 ~ 38
V
Output Voltage
VOUT
VFB ~ 20
V
Ambient Temperature
TA
-40 ~ +85
°C
THERMAL CHARACTERISTICS
PARAMETER
SYMBOL
RATINGS
UNIT
Junction To Ambient
θJA
15
°C/W
Junction to Case
θJC
40
°C/W
Note: θJA is measured with the PCB copper area of approximately 1 in
2(Multi-layer). That need connect to exposed
pad.
ELECTRICAL CHARACTERISTICS (VIN=12V, TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input Voltage Range
VIN
8
38
V
Shutdown Supply Current
ISD
VEN= 0V
0.7
1.3
mA
Quiescent Current
ICCQ
VEN=5.0V, VFB=1.05V
0.7
1.5
mA
Feedback Voltage
VFB
8V≤VIN≤38V
0.98
1.00
1.02
V
Feedback Overvoltage Threshold
OVP_FB
1.1X
VFB
High-Side Switch On Resistance (Note)
RDS(ON)
80
mΩ
High-Side Switch Leakage Current
VEN=0V, VSW=0V
10
μA
Upper Switch Current Limit
Minimum Duty Cycle
5.1
6.0
A
LG Rise Time
TLXR
CLX=1000pF
40
ns
LG Fall Time
TLXF
CLX=1000pF
40
ns
LG Driver Bias Supply Voltage
5
V
Oscillation Frequency
FOSC1
160
KHz
Short Circuit Oscillation Frequency
FOSC2
VFB=<0.5V
60
KHz
Maximum Duty Cycle
DMAX
90
%
Minimum On Time (Note)
TON(min)
220
ns
EN Lockout Threshold Voltage
ENH(LOCK)
2.5
V
EN Lockout Hysterisis
210
mV
Input Under Voltage Lockout Threshold
UVLO
VIN Rising
6.5
7.0
7.5
V
Input Under Voltage Lockout Threshold
Hysteresis
UVLO-Hys
800
mV
Input Over Voltage Lockout Threshold
OVLO
VIN Rising
40
V
Input Over Voltage Lockout Threshold
Hysteresis
OVLO-Hys
5
V
Soft-Start Period
3
ms
Thermal Shutdown
TSD
150
°C
Thermal Shutdown Hysterisis
TSH
30
°C
Note: Guaranteed by design.



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