LT3758 LINER [Linear Technology], LT3758 Datasheet - Page 8

• Manufacturer Part Number: LT3758
• Description: High Input Voltage, Boost, Flyback, SEPIC and Inverting Controller
• Manufacturer: LINER [Linear Technology]

LT3758
TYPICAL PERFORMANCE CHARACTERISTICS
8
I
L1A
10V/DIV
1A/DIV
+ I
V
OUT
90
80
70
60
50
40
30
20
10
L1B
0
0
Gate Drive Rise
and Fall Time vs C
Typical Start-Up Waveforms
SEE TYPICAL APPLICATION: 18V TO 72V INPUT,
24V OUTPUT SEPIC CONVERTER
INTV
V
IN
= 48V
CC
5
= 7.2V
RISE TIME
10
2ms/DIV
C
L
15
(nF)
L
20
FALL TIME
25
3758 G18
3758 G20
30
I
L1A
20V/DIV
50V/DIV
2A/DIV
+ I
V
V
OUT
L1B
SW
30
25
20
15
10
5
0
3
SEE TYPICAL APPLICATION: 18V TO 72V INPUT,
24V OUTPUT SEPIC CONVERTER
Gate Drive Rise
and Fall Time vs INTV
FBX Frequency Foldback
Waveforms During Overcurrent
C
L
= 3300pF
FALL TIME
T
A
= 25°C, unless otherwise noted.
6
RISE TIME
INTV
50μs/DIV
9
CC
(V)
CC
12
V
IN
= 48V
3758 G19
3758 G21
15
3758f