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UC2854BMDWREP Fiches technique(PDF) 8 Page - Texas Instruments

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No de pièce UC2854BMDWREP
Description  Advanced High-Power Factor Preregulator
Download  38 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

UC2854BMDWREP Fiches technique(HTML) 8 Page - Texas Instruments

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10 k
−60
100 k
−40
0
20
60
80
100
120
1 M
10 M
−20
40
140
GAIN
fCO = 5.992 MHz
f − Frequency − Hz
PHASE
−90
−45
−0
0
−20
40
20
60
80
100
120
100
1000
10 k
100 k
1 M
10 M
GAIN
PHASE
f − Frequency − Hz
0
−20
40
20
60
80
100
120
IAC − Supply Current − µA
0
0.84
0.80
50
100
0.88
0.96
0.92
1.00
1.04
1.08
1.16
1.12
1.20
150
200
250
VRMS = 1.5 V
VRMS = 1.5 V
VRMS = 5 V
VA Out = 5 V
0
0.84
0.80
50
100
0.88
0.96
0.92
1.00
1.04
1.08
1.16
1.12
1.20
150
200
250
IAC − Supply Current − µA
VRMS = 3 V
VRMS = 5 V
VRMS = 1.5 V
VA Out = 3.5 V
0
0
100
300
400
500
600
800
200
700
0.01
0.02
0.03
0.04
0.05
CLOAD − Load Capacitance − µF
Rise Time
Fall Time
1000
70
75
80
85
90
95
100
10 k
100 k
RSET − Oscillator Charging Resistance − Ω
UC2854B-EP
SGLS318A – NOVEMBER 2005 – REVISED NOVEMBER 2015
www.ti.com
7.6 Typical Characteristics
Figure 3. Gate Drive Maximum Duty Cycle vs Oscillator
Figure 2. Gate Drive Timing vs Load Capacitance
Charging Resistance
Figure 4. Multiplier Gain Constant vs Supply Current
Figure 5. Multiplier Gain Constant vs Supply Current
Figure 7. Voltage Amplifier Gain vs Frequency
Figure 6. Current Amplifier Gain vs Frequency
8
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Product Folder Links: UC2854B-EP


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