LT3825EFE-PBF LINER [Linear Technology], LT3825EFE-PBF Datasheet - Page 29

• Manufacturer Part Number: LT3825EFE-PBF
• Description: Isolated No-Opto Synchronous Flyback Controller with Wide Input Supply Range
• Manufacturer: LINER [Linear Technology]

TYPICAL APPLICATIONS
36V TO 72V
V
IN
+
90
88
84
82
80
86
1
0.82μF
100V
402k
36V
1%
IN
Effi ciency vs Load Current
15k
1%
2
26.1k
1%
48V
LOAD CURRENT (A)
72V
IN
3
3.01k
1%
BAS21
IN
20Ω
R7
15k
4
PGDLY
FB
UVLO
t
ON
100k
V
CC
SYNC
5
47k
1/4W
+
3825 TA03b
R
47μF
20V
CMP
6
866Ω
1%
48V to 3.3V at 6A Isolated Supply
ENDLY
PG
47pF
LT3825
62k
0.1μF
OSC
GND SFST
SG
SG
0.1μF
0.22μF
SENSE
SENSE
C
CMP
V
+
–
C
Si4490DY
3.43
3.38
3.33
3.28
3.23
3.18
3.13
1
10k
Output Regulation vs Load Current
680pF
3.3nF
PULSE PB2134
4
5
1
3
2
0.04Ω
1W
72V
•
•
T1
PA0184
LOAD CURRENT (A)
SG
IN
•
330Ω
3
10
11
12
8
1
7
8
9
0.1μF
48V
•
B0540W
IN
+
36V
•
5
4
4
Si7892DP
IN
2.2nF
BAT54
150μF
6TPB150ML
×3
FMMT718
FMMT618
47Ω
5
3825 TA03c
3825 TA03a
LT3825
6
0.1μF
2.2nF
250V
15Ω
10k
29
V
3.3V
6A
1μF
OUT
3825fa
+