lt1725cs-trpbf Linear Technology Corporation, lt1725cs-trpbf Datasheet - Page 8

• Manufacturer Part Number: lt1725cs-trpbf
• Description: General Purpose Isolated Flyback Controller
• Manufacturer: Linear Technology Corporation

FLYBACK ERROR A PLIFIER
LT1725
TI I G DIAGRA
8
W
U
VOLTAGE
SWITCH
STATE
GND
MINIMUM t
V
V
SW
IN
OFF
ON
FLYBACK AMP
R1
R2
W
STATE
W
FB
ON
Q1 Q2
ENABLE DELAY
V
I
IN
M1
DISABLED
V
MINIMUM ENABLE TIME
•
•
BG
T1
I
M
•
I
M
D1
+
I
FXD
C1
V
C
OFF
C2
V
FLBK
ENABLED
ISOLATED
V
OUT
+
–
1725 EA
V
0.80×
FLBK
ENAB
ON
DISABLED
1725 TD
COLLAPSE
DETECT
1725fa