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P34563L-SH2-R Datasheet(PDF) 3 Page - Unisonic Technologies

Part # P34563L-SH2-R
Description  PWM CONTROL 3A STEP-DOWN CONVERTER
PDF  4 Pages
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Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

P34563L-SH2-R Datasheet(HTML) 3 Page - Unisonic Technologies

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P34563
Preliminary
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
3 of 4
www.unisonic.com.tw
QW-R103-074.a
ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified.)
PARAMETER
SYMBOL
RATINGS
UNIT
VCC Pin Voltage
VCC
VSS -0.3~VSS+45
V
Feedback Pin Voltage
VFB
VSS-0.3~38
V
EN/CT, OVP Pin Voltage
VSS-0.3~6
V
SENSE1,SENSE2 Pin Voltage
VSS-0.3~38
V
Switch Pin Voltage
VSW
VSS-0.3~VCC+0.3
V
Power Dissipation
PD
(TJ -TA)/ θJA
W
Operating Supply Voltage
VOP
+8~+40
V
Output Current
IOUT
0~3
A
Operating Temperature
TOPR
-20~+125
°C
Storage Temperature
TSTG
-40~+165
°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.
THERMAL CHARACTERISTICS
PARAMETER
SYMBOL
RATINGS
UNIT
Junction to Ambient
θJA
143
°C/W
Junction to Case
θJC
15
°C/W
ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX UNIT
FB
VFB
IOUT=10mA
1.08
1.10
1.12
V
Under Voltage Lockout
UVLO
Falling
6
V
UVLO Hysteresis
0.8
V
OVP Detect Voltage
VOVP
FB Floating
1.250
V
Line Regulation
∆
　
VOUT VCC=10~40V
0.5
1
%
Load Regulation
∆
　
VOUT IOUT=0~1A, RSENSE=140mΩ
10
mV
Quiescent Current
ICCQ
VFB>1.2V
3
7
mA
Oscillator Frequency
FOSC
80
100
120
KHz
300
350
400
Max. Duty Cycle (ON)
DC
Force Driver On VFB=0.7V
100
%
Min. Duty Cycle (OFF)
Force Driver Off VFB=1.2V
0
%
Internal MOSFET RDSON
RDSON
VCC=12V, VFB = 0.7V
110
170
mΩ
Sense Voltage
VSENSE
VSENSE1-VSENSE2
150
mV
Sense Voltage Hysteresis
VSENSE-h
45
mV
EN/CT Pin Logic Input Threshold
Voltage
VEN
Shutdown Mode
0.3
V
VCT
Auto Restart, VFB<0.4V
0.5
1.5
V
EN/CT Pin Current
IEN/CT-C
Charge Current
-32
µA
EN/CT Pin Current
IEN/CT-D
Discharge Current
1.5
µA
Thermal Shutdown Temp
TSD
160
°C
Thermal Shutdown Hysteresis
TSH
40
°C



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