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LT8349ACBZ-R7 Scheda tecnica(PDF) 10 Page - Analog Devices

Il numero della parte LT8349ACBZ-R7
Spiegazioni elettronici  8V, 12A, 2-Phase Low IQ Synchronous Boost Converter
PDF  29 Pages
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Produttore elettronici  AD [Analog Devices]
Homepage  http://www.analog.com
Logo AD - Analog Devices

LT8349ACBZ-R7 Scheda tecnica(HTML) 10 Page - Analog Devices

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Data Sheet
LT8349
analog.com
Rev B
10 of 29
Figure 10.Switching Frequency vs Temperature
Figure 11.Switching Frequency with Spread Spectrum
Modulation
Figure 12.Bottom Switch Current Limit vs Temperature
(Both channels)
Figure 13.Bottom Switch Min. On/Off Times vs Temperature
(Both Channels)
Figure 14.Switching Waveforms, Heavy Load 2-Phase
Operation (Reference to Page 26 Circuit)
Figure 15.Switching Waveforms, Light Load 1-Phase Burst
Mode Operation (Reference to Page 26 Circuit)
RT = 54.9kΩ
SYNC/MODE = OPEN
TEMPERATURE (C°)
–50
–25
0
25
50
75
100
125
1.90
1.92
1.94
1.96
1.98
2.00
2.02
2.04
2.06
2.08
2.10
SYNC/MODE = VIN
TIME (µs)
0
50
100
150
200
250
300
350
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
R T = 54.9kΩ
TEMPERATURE (C°)
–50
–25
0
25
50
75
100
125
6.0
6.2
6.4
6.6
6.8
7.0
7.2
7.4
MIN ON-TIME
MIN OFF-TIME
TEMPERATURE (C°)
–50
–25
0
25
50
75
100
125
0
10
20
30
40
50
60
70
80
90
100
VIN = 3.7V
ILOAD = 4A
200ns/DIV
VSW2
10V/DIV
VSW1
10V/DIV
IL2
4A/DIV
IL1
4A/DIV
VIN = 3.7V
ILOAD = 0.1A
1µs/DIV
IL1
1A/DIV
VSW1
2V/DIV



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