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UD38252G-SH2-R 데이터시트(PDF) 3 Page - Unisonic Technologies

부품명 UD38252G-SH2-R
상세설명  Stable with Low ESR Ceramic Output Capacitors
PDF  7 Pages
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제조업체  UTC [Unisonic Technologies]
홈페이지  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UD38252G-SH2-R 데이터시트(HTML) 3 Page - Unisonic Technologies

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UD38252
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
3 of 7
www.unisonic.com.tw
QW-R115-008.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 ~ 6
V
Ambient Temperature
TA
-40 ~ +85
°C
THERMAL CHARACTERISTICS
PARAMETER
SYMBOL
RATINGS
UNIT
Junction To Ambient
θJA
40
°C/W
Junction to Case
θJC
15
°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
Quiescent Current
ICCQ
VFB=1.05V
1
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)1
150
mΩ
Low-Side Switch On Resistance (Note)
RDS(ON)2
140
mΩ
High-Side Switch Leakage Current
VFB=1.05V, VSW=0V
10
μA
Upper Switch Current Limit
Minimum Duty Cycle
2.9
3.5
A
Lower Switch Current Limit
From Drain to Source
0.9
A
Oscillation Frequency
FOSC1
160
KHz
Short Circuit Oscillation Frequency
FOSC2
VFB=<0.5V
60
KHz
Maximum Duty Cycle
DMAX
90
%
Minimum On Time (Note1)
TON(min)
220
ns
Sense Voltage
△
VSEN
(VSEN2)-(VSEN1)
114
120
126
mV
VIN OVP Turn-Off Voltage
Input voltage rising
40
V
VIN OVP Hysteresis
Input voltage falling
5
V
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
Soft-Start Period
3
ms
Thermal Shutdown
TSD
150
°C
Thermal Shutdown Hysterisis
TSH
30
°C
Note: Guaranteed by design.



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