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P1888G-S08-R Datasheet(PDF) 3 Page - Unisonic Technologies

Part # P1888G-S08-R
Description  Thermal Shutdown function
PDF  4 Pages
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Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

P1888G-S08-R Datasheet(HTML) 3 Page - Unisonic Technologies

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P1888
Preliminary
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
3 of 4
www.unisonic.com.tw
QW-R103-111.a
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
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 Ambient Temperature
Ta
-20~+85
°C
Operating Temperature
TOPR
-20~+125
°C
Storage Temperature
TSTG
-40~+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
134
°C/W
Junction to Case
θJC
22
°C/W
ELECTRICAL CHARACTERISTICS (Ta=25°C, VIN=12V, unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP. MAX. UNIT
Input Voltage
VIN
23
V
Feedback Voltage
VFB
IOUT=0.1A
1.18
1.23
1.28
V
Feedback Bias Current
IFB(BIAS)
IOUT=0.1A
0.1
µA
Switch Current
ISW
3.1
A
Standby Current
ISTN-BY
VEN=0V
10
µA
Line Regulation
OUT
OUT
V
V
∆
VIN=5V~23V, IOUT=0.2A
1
%
Load Regulation
OUT
OUT
V
V
∆
IOUT=0.1~3A
0.2
%
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
V
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
mΩ
Internal MOSFET RDS(ON)
RDS(ON)
VIN=12V, VFB=0V
70
100
mΩ
Efficiency
η
VIN=12V, VOUT=5V, IOUT=3A
88
%



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