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LT8277 Datasheet(PDF) 13 Page - Analog Devices

Part # LT8277
Description  Multiphase Current Mode Step-Up DC/DC Controller
PDF  31 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LT8277 Datasheet(HTML) 13 Page - Analog Devices

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Data Sheet
LT8277
analog.com
Rev 0
13 of 31
Figure 23. SNSP–SNSN Limit vs. GATE Duty Cycle for Both
Phases
Figure 24. SNSN1 and SNSN2 Pin Current vs. Temperature
Figure 25. Minimum Off Time vs. Temperature
Figure 26. Minimum On Time vs. Temperature
Figure 27. Gate Rise and Fall Time vs. Load Capacitance
θ1
θ2
GATE1 DUTY RATIO (%)
20.0
27.5
35.0
42.5
50.0
57.5
65.0
72.5
80.0
50
55
60
65
70
75
80
85
90
SNSN1
SNSN2
TEMPERATURE (°C)
–50
–30
–10
10
30
50
70
90
110
130
150
0
0.2
0.4
0.6
0.8
1.0
tOFF1 (200kHz)
tOFF1 (400kHz)
tOFF1 (2MHz)
tOFF2 (200kHz)
tOFF2 (400kHz)
tOFF2 (2MHz)
TEMPERATURE (°C)
–50
–30
–10
10
30
50
70
90
110
130
150
53
54
55
56
57
58
59
60
61
62
63
GATE1 (200kHz)
GATE2 (200kHz)
GATE1 (400kHz)
GATE2 (400kHz)
GATE1 (2MHz)
GATE2 (2MHz)
TEMPERATURE (°C)
–50
–30
–10
10
30
50
70
90
110
130
150
48
49
50
51
52
53
54
55
56
57
58
GATE1 (
tRISE)
GATE1 (
tFALL)
GATE2 (
tRISE)
GATE2 (
tFALL)
CLOAD (nF)
0
2
4
6
8
10
10
15
20
25
30
35
40
45
50
55
60



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