TOP252-262 POWERINT [Power Integrations, Inc.], TOP252-262 Datasheet - Page 4

• Manufacturer Part Number: TOP252-262
• Description: Enhanced EcoSmart, Integrated Off-Line Switcher with Advanced Feature Set and Extended Power Range
• Manufacturer: POWERINT [Power Integrations, Inc.]

Figure 3a.
Figure 3b. Functional Block Diagram (M Package).
Rev. F 01/09
MONITOR (V)
FUNCTION (M)
EXTERNAL
CURRENT
VOLTAGE
4
CONTROL (C)
LIMIT (X)
CONTROL (C)
MULTI-
Functional Block Diagram (P and G Packages).
TOP252-262
Z
Z
C
C
I
SHUNT REGULATOR/
FB
I
SHUNT REGULATOR/
FB
ERROR AMPLIFIER
ERROR AMPLIFIER
CURRENT
CURRENT
ADJUST
ADJUST
V
V
SENSE
LIMIT
LIMIT
LINE
SENSE
LINE
+
-
+
-
1 V
V
V
OVP
BG
BG
V
V
C
OVP
+ V
C
V I (LIMIT)
+ V
DC
V I (LIMIT)
ON/OFF
5.8 V
ON/OFF
DC
5.8 V
T
OV/
UV
T
MAX
K
K
K
K
OV/
MAX
UV
PS(UPPER)
PS(LOWER)
PS(UPPER)
PS(LOWER)
STOP LOGIC
STOP LOGIC
5.8 V
4.8 V
5.8 V
4.8 V
DC
SOFT START
I
I
I
DC
SOFT START
I
I
I
COMPARATOR
FB
PS(UPPER)
PS(LOWER)
COMPARATOR
FB
PS(UPPER)
PS(LOWER)
INTERNAL UV
INTERNAL UV
MAX
MAX
+
-
+
F REDUCTION
F REDUCTION
-
F REDUCTION
F REDUCTION
STOP SOFT
STOP SOFT
OSCILLATOR
WITH JITTER
OSCILLATOR
WITH JITTER
PWM
PWM
START
START
CLOCK
CLOCK
SOFT START
SOFT START
D
D
OFF
MAX
OFF
MAX
AUTO-RESTART
AUTO-RESTART
SHUTDOWN/
HYSTERETIC
HYSTERETIC
SHUTDOWN
SHUTDOWN/
SHUTDOWN
THERMAL
THERMAL
÷ 16
÷ 16
0
1
0
1
INTERNAL
SUPPLY
INTERNAL
SUPPLY
S
R
S
R
Q
Q
K
K
K
K
CURRENT LIMIT
CURRENT LIMIT
PS(UPPER)
PS(LOWER)
COMPARATOR
PS(UPPER)
PS(LOWER)
COMPARATOR
CONTROLLED
GATE DRIVER
CONTROLLED
GATE DRIVER
TURN-ON
TURN-ON
BLANKING
SOURCE (S)
BLANKING
+
+
+
SOURCE (S)
-
-
-
PI-4508-120307
+
+
+
LEADING
-
-
-
PI-4643-082907
LEADING
EDGE
EDGE
www.powerint.com
DRAIN (D)
SOURCE (S)
DRAIN (D)
SOURCE (S)