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UC3845-S08-R 数据表(PDF) 6 Page - Unisonic Technologies

部件名 UC3845-S08-R
功能描述  HIGH PERFORMANCE CURRENT MODE PWM CONTROLLERS
PDF  7 Pages
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制造商  UTC [Unisonic Technologies]
网页  http://www.utc-ic.com
标志 UTC - Unisonic Technologies

UC3845-S08-R 数据表(HTML) 6 Page - Unisonic Technologies

  UC3845-S08-R Datasheet HTML 1Page - Unisonic Technologies UC3845-S08-R Datasheet HTML 2Page - Unisonic Technologies UC3845-S08-R Datasheet HTML 3Page - Unisonic Technologies UC3845-S08-R Datasheet HTML 4Page - Unisonic Technologies UC3845-S08-R Datasheet HTML 5Page - Unisonic Technologies UC3845-S08-R Datasheet HTML 6Page - Unisonic Technologies UC3845-S08-R Datasheet HTML 7Page - Unisonic Technologies  
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UC3844/45
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
6 of 7
www.unisonic.com.tw
QW-R103-010,C
TYPICAL CHARACTERISTICS
100
50
10
5.0
1.0
10k
20k
50k
100k
Oscillator Frequency, IOSC (Hz)
200k
500k 1.0M
Timing Resistor vs. Oscillator Frequency
2.0
20
75
65
60
10k
20k
50k
100k
200k
500k
1.0M
Output Deadtime vs. Oscillator Frequency
55
70
VCC = 15V
TA = 25℃
100
pF
200
pF
500
pF
1.0n
F
2.0n
F
5.0n
F
C
T
= 10
nF
Note: Output Switches At
One-Half The Oscillator
Frequency
50
Oscillator Frequency, IOSC (Hz)
1.0nF
2.0nF
5.0nF
CT = 10nF
100pF
200pF
500pF
100
80
40
20
-20
10
100
1.0k
10k
Frequency, f (Hz)
100k
1.0M
10M
Error Amp Open Loop Gain Phase vs. Frequency
0
60
1.2
0.8
0.4
02.0
4.0
6.0
8.0
Current Sense Input Threshold vs. Error Amp
Output Voltage
0.2
1.0
VCC = 15V
VOUT = 2.0V ~ 4.0V
RL = 100k
TA = 25℃
Phase
Gain
0
Error Amp Output Voltage, VOUT (V)
0
30
90
120
180
150
60
0.6
TA = 25℃
VCC = 15V
TA = 125℃
TA = -55℃



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