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P1885-S08-R Datasheet(PDF) 4 Page - Unisonic Technologies

No. de pieza P1885-S08-R
Descripción Electrónicos  PWM CONTROL 2A STEP-DOWN CONVERTER
PDF  9 Pages
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Fabricante Electrónico  UTC [Unisonic Technologies]
Página de inicio  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

P1885-S08-R Datasheet(HTML) 4 Page - Unisonic Technologies

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P1885
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
4 of 9
www.unisonic.com.tw
QW-R103-041
.B
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATING
UNIT
VCC Pin Voltage
VCC
VSS-0.3 ~ VSS+25
V
Feedback Pin Voltage
VFB
VSS-0.3 ~ VCC
V
EN Pin Voltage
VEN
VSS-0.3 ~ VIN+0.3
V
Switch Pin Voltage
VOUTPUT
VSS-0.3 ~ VIN+0.3
V
Power Dissipation
PD
Internally limited
mW
Operating Temperature
TOPR
-20 ~ +125
℃
Storage Temperature
TSTG
-40 ~ +150
℃
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
MIN
TYP
MAX
UNIT
Junction-to-Ambient
θJA
65
°C/W
ELECTRICAL CHARACTERISTICS (VIN = 12V, Ta=25°C, unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN. TYP. MAX. UNIT
Input Voltage
VIN
3.6
23
V
Feedback Voltage
VFB
IOUT=0.1A
0.784
0.8
0.816
V
Feedback Bias Current
IFB(BIAS)
IOUT=0.1A
0.1
0.5
μA
Switch Current
ISW
2.15
A
Standby Current
ISTN-BY
VEN=0V
10
μA
Line Regulation
ΔVOUT/VOUT VIN=5V~23V, IOUT=0.2A
1
2.1
%
Load Regulation
ΔVOUT/VOUT IOUT=0.1~2A
0.2
0.5
%
Oscillation Frequency
fOSC
Measure waveform at SW pin
240
300
360
KHz
Frequency of Current Limit or Short
Circuit Protect
fOSC1
Measure waveform at SW pin
10
KHz
VSH
Evaluate oscillation at SW pin
0.79
EN Pin Input Voltage
VSL
Evaluate oscillation stop at SW pin
0.72
V
ISH
20
μA
EN Pin Input Leakage Current
ISL
-10
μA
Soft-Start Time
TSS
0.3
2
5
ms
VIN=5V, VFB=0V
110
150
Internal MOSFET RDS(ON)
RDS(ON)
VIN=12V, VFB=0V
70
100
mΩ
Efficiency
η
VIN=12V, VOUT=5V, IOUT=2A
91
%



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