ISL8022 查看數據表（PDF） - Intersil
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ISL8022 Datasheet PDF : 18 Pages
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ISL8022
Block Diagram
SSOoFfTt -
S TSAtaRrTt
SHUTDOWN
EN1
BANDG AP 0.6V
EAMP
27pF
250k
+
COMP
FB1
1.6k
3pF
SLOPE
COMP
+
0 .2 V
SCP
+
VCC SHUTDOWN
PW M /PFM
L O G IC
CONTROLLER
PRO TECTIO N
D R IV E R
+
OCP
+
CSA1
1 .2 5 V
VIN
1M
PG
+
0 .5 4 6 V
1ms
DELAY
O S C IL L A T O R
+
S K IP
0 .2 6 5 V
N E G A T IV E
CURRENT LIM IT
ZE R O-C R O S S
S E N S IN G
S OS oF fTt-
S TSAtRa rTt
SHUTDOWN
EN2
B A N D G AP 0.6V
EAMP
27pF
250k
+
COMP
FB2
1.6k
3pF
SLOPE
COMP
+
0 .2 V
SCP
+
+
0 .5 4 6 V
THERMAL
SHUT DOWN
SHUTDOWN
VCC
SHUTDOWN
PW M /PFM
L O G IC
CONTROLLER
PRO TECTIO N
D R IV E R
+
OCP
+
CSA2
1.1V
+
S K IP
0.265V
N E G A T IV E
CURRENT LIMIT
Z E R O-C R O S S
S E N S IN G
V IN 1
LX1
PGND
SYNC
V IN 2
LX2
PGND
3
FN7650.1
August 25, 2010
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