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UCC36451G-SH2-R Datasheet(PDF) 3 Page - Unisonic Technologies

No. de pieza UCC36451G-SH2-R
Descripción Electrónicos  CMOS IC
PDF  8 Pages
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Fabricante Electrónico  UTC [Unisonic Technologies]
Página de inicio  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UCC36451G-SH2-R Datasheet(HTML) 3 Page - Unisonic Technologies

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UCC36451
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
3 of 8
www.unisonic.com.tw
QW-R115-014.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
-0.3 ~ +6
V
Output Voltage
VOUT
VFB ~ 20
V
Lead Temperature
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 RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
Ambient Operating Temperature
TA
-40 ~ +85
°C
THERMAL CHARACTERISTICS
PARAMETER
SYMBOL
RATINGS
UNIT
Junction to Ambient
θJA
50
°C/W
Junction to Case
θJC
25
°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 noted.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
Input Voltage Range
8
36
V
Quiescent Current
ICCQ
VFB=1.05V
1.2
2
mA
Feedback Voltage
VFB
8V≤VIN≤36V
0.98 1.00 1.02
V
Feedback Overvoltage Threshold
OVP (FB)
1.1X
VFB
Cable Compensation Current
ICFB
VCS=100mV
4
uA
High-Side Switch On Resistance
RDS (ON) 1
75
mΩ
High-Side Switch Leakage Current
VFB=1.05V, VSW=0V
10
μA
High-Side Switch Current Limit
Minimum Duty Cycle
4.7
5.7
A
LG Rise Time
TLGR
CLX=1200pF
40
ns
LG Fall Time
TLGF
CLX=1200pF
40
ns
LG Driver Bias Supply Voltage
5
V
Oscillation Frequency
FOSC1
160
KHz
Short Circuit Oscillation Frequency
FOSC2
VFB<0.4V
80
KHz
Short Circuit Retry time
RTSCP
VFB<0.5V
1
mS
Maximum Duty Cycle
DMAX
88
%
Minimum On Time
TON (min)
220
ns
Current Sense Voltage
VCS1/2
95
100
115
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
36
V
Input Over Voltage Lockout Threshold Hysteresis
OVLO-Hys
3
V
Soft-Start Period
2
mS
Thermal Shutdown
TSD
155
°C
Thermal Shutdown Hysterisis
TSH
30
°C



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