TOP260YN Datasheet, PDF (4/51 Pages) Power Integrations, Inc. – Enhanced EcoSmart™, Integrated Off-Line Switcher with Advanced Feature Set and Extended Power Range

TOP252-262
CONTROL (C)
MULTI-
FUNCTION (M)
V_C
Z_C
SHUNT REGULATOR/
ERROR AMPLIFIER
5.8 V
I_FB
VI _(LIMIT)
CURRENT
LIMIT
ADJUST
ON/OFF
+
5.8 V
4.8 V
-
INTERNAL UV
COMPARATOR
V_BG + V_T
STOP LOGIC
SOFT START
0
INTERNAL
1
SUPPLY
√ 16
SHUTDOWN/
AUTO-RESTART
HYSTERETIC
THERMAL
SHUTDOWN
V OVP OV/
UV
LINE
SENSE DC_MAX
DC_MAX
STOP SOFT
START
OSCILLATOR
WITH JITTER
F REDUCTION
D_MAX
CLOCK
K_PS(UPPER)
K_PS(LOWER)
F REDUCTION
SOFT START
I_FB
I_PS(UPPER)
I_PS(LOWER)
PWM
OFF
SQ
R
K_PS(UPPER)
K_PS(LOWER)
CURRENT LIMIT
COMPARATOR
SOURCE (S)
CONTROLLED
TURN-ON
GATE DRIVER
LEADING
EDGE
BLANKING
Figure 3a. Functional Block Diagram (P and G Packages).
CONTROL (C)
EXTERNAL
CURRENT
LIMIT (X)
VOLTAGE
MONITOR (V)
V_C
Z_C
SHUNT REGULATOR/
ERROR AMPLIFIER
5.8 V
I_FB
VI _(LIMIT)
CURRENT
LIMIT
ADJUST
ON/OFF
+
5.8 V
4.8 V
-
INTERNAL UV
COMPARATOR
V_BG + V_T
1V
STOP LOGIC
SOFT START
0
INTERNAL
1
SUPPLY
√ 16
SHUTDOWN/
AUTO-RESTART
HYSTERETIC
THERMAL
SHUTDOWN
V
OVP OV/
UV
LINE
SENSE DC_MAX
DC_MAX
STOP SOFT
START
OSCILLATOR
WITH JITTER
D_MAX
CLOCK
F REDUCTION
K_PS(UPPER)
K_PS(LOWER)
F REDUCTION
SOFT START
I_FB
I_PS(UPPER)
I_PS(LOWER)
PWM
OFF
SQ
R
PI-4508-120307
K_PS(UPPER)
K_PS(LOWER)
CURRENT LIMIT
COMPARATOR
SOURCE (S)
CONTROLLED
TURN-ON
GATE DRIVER
LEADING
EDGE
BLANKING
Figure 3b. Functional Block Diagram (M Package).
PI-4643-082907
DRAIN (D)
SOURCE (S)
DRAIN (D)
SOURCE (S)
4
Rev. H 06/13
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