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LD1596L-S08-R bảng dữ liệu(PDF) 3 Page - Unisonic Technologies

tên linh kiện LD1596L-S08-R
Giải thích chi tiết về linh kiện  2A 150kHz 40V BUCK DC/DC CONVERTER WITH LED DRIVER AND BATTERY CHARGE
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LD1596L-S08-R bảng dữ liệu(HTML) 3 Page - Unisonic Technologies

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LD1596
Preliminary
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
3 of 5
www.unisonic.com.tw
QW-R502-A36.a
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
Input Voltage
VIN
-0.3~45
V
FB Pin Voltage
VFB
-0.3~VIN
V
EN Pin Voltage
VEN
-0.3~VIN
V
SW Pin Voltage
VSW
-0.3~VIN
V
Power Dissipation
PD
Internally limited
mW
Thermal Resistance (Junction to Ambient, No
Heatsink, Free Air)
RJA
50
°C/W
Operating Junction Temperature
TJ
-40~125
°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.
THERMAL DATA
PARAMETER
SYMBOL
RATINGS
UNIT
Junction to Ambient
θJA
150
°C/W
ELECTRICAL CHARACTERISTICS (TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
System Parameters Test Circuit Figure 1
Feedback Voltage
VFB
VIN=8V~32V, VOUT=5V, ILOAD=0.2A~2A 1.21
1.235
1.26
V
Efficiency
η
VIN=12V, VOUT=5V, IOUT=2A
81
%
ELECTRICAL CHARACTERISTICS (DC PARAMETERS)
VIN=12V, GND=0V, VIN & GND parallel connect a 220uf/50V capacitor; IOUT=500mA, TA=25°C, the others floating
unless otherwise specified
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input Operation Voltage
VIN
4.5
40
V
Shutdown Supply Current
ISTBY
VEN=5V
80
200
uA
Quiescent Supply Current
IQ
VEN=0V, VFB=VIN
2
5
mA
Oscillator Frequency
Fosc
127
150
172
Khz
Switch current Limit
IL
VFB=0
3
A
EN Pin Threshold
VEN
High (Regulator OFF)
1.4
V
Low (Regulator ON)
0.8
V
Output Saturation Voltage
VCE
VFB=0V, ISW=2A
1.1
1.4
V
Constant Current Sense Voltage
VCS
0.132 0.155 0.178
V



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