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UC3383 датащи(PDF) 10 Page - Unisonic Technologies

номер детали UC3383
подробное описание детали  PFM CONTROLLED, STEP-UP DC/DC CONVERTERS
Download  14 Pages
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производитель  UTC [Unisonic Technologies]
домашняя страница  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UC3383 датащи(HTML) 10 Page - Unisonic Technologies

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UC3383
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
10 of 14
www.unisonic.com.tw
QW-R502-032.K
ELECTRICAL CHARACTRISTICS(Cont.)
UTC UC3383-5.0V
(IOUT=50mA)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Output Voltage
VOUT
L, SD, CL etc. connected
4.875 5.000 5.125
V
Maximum Input Voltage
VIN
10
V
Oscillation Start-up Voltage
VST
IOUT=1mA
0.80
0.90
V
Oscillation Hold Voltage
VHLD
IOUT=1mA
0.70
V
Lx Limit Voltage
VLxLMT Same as IDD1. FOSC>Fosc1×2
0.7
1.1
V
No-Load Input Current
IIN
IOUT=0mA (Note 1)
5.3
10.6
μA
Supply Current 1(Note 2)
IDD1
VIN=VOUT×0.95
31.7
63.4
μA
Supply Current 2
IDD2
VIN=VOUT+0.5V
2.4
4.8
μA
Lx Leakage Current
ILXL
No external components, VOUT=VLx=10V.
1.0
μA
Lx Switch-On Resistance
RSWON Same as IDD1. VLx=0.4V
2.8
4.3
Duty Ratio 1
DTY1
Same as IDD1. Measuring of Lx waveform
70
75
80
%
Duty Ratio 2
DTY2
IOUT=1mA. Measuring of Lx on-time
40
45
50
%
Efficiency
EFFI
L, SD, CL etc. connected
85
%
Fosc1 Same as IDD1. 75% duty
100
120
130
kHz
Maximum Oscillation Frequency
Fosc2 Same as IDD1. 45% duty
150
180
210
kHz
FOR 5-PINS PACKAGE ONLY
High
VCEH
Same as IDD1.
Existence of Lx Oscillation.
0.75
V
CE Voltage
Low
VCEL
Same as IDD1.
Disappearance of Lx Oscillation
0.20
V
High
ICEH
Same as IDD1. VCE=VOUT×0.95
0.25
μA
CE ”High” Current
Low
ICEL
Same as IDD1. VCE=0V
-0.25
μA
Stand-by Current
ISTB
Same as IDD1.
0.5
μA
Note: 1. The Schottky diode (SD) must be type MA735, with reverse current(IR)<1.0μA at reverse voltage (VR) =10V.
2. "Supply Current 1" is the supply current while the oscillator is continuously oscillating. The current actually
provided by an external VIN source is represented by "No-Load Input Current (IIN)".


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