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– POWER Board –
IC601 MIP2F20MS1SO
VDD
1
FB
2
CL
3
IN
VCL.OUT
ICL.LOW
ILIMIT VARIABLE
CIRCUIT
VCC OVP
+
2.4V
–
OVERHEAT
PROTECTION
VCC UV
+
TE
L 13942296513
7.2V
–
VCC
4
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CONSTANT
CURRENT
SOURCE
CLAMP CIRCUIT
(ILIMIT SETTING)
VCL
FOR LIGHT LOAD
DETECTION INTERMITTENT
OSCILLATION CONTROL
+
27%
–
22%
GENERATOR
CLOCK
12kHz
MAXDC
S
Q
R
Q
RESTARTING
TRIGGER
VDD UV
x
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u163
y
i
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2 9
8
6.6V
VDD CLAMP
ILIMIT
CIRCUIT
CORRECTION
CIRCUIT
AT TURNING ON
R
Q
BLANKING PULSE
GENERATION CIRCUIT
S
Q
+
5.7V
–
5.0V
Q Q
3
6 7
1 3
REGULATOR
5.7V
.
HCD-HPR90/HPR99XM
9 4
2 8
8 SOURCE
7 SOURCE
–
+
FOR
DRAIN CURRENT
DETECT
GATE DRIVER
POWER
MOSFET
1 5
0 5
8
2 9
9 4
5 DRAIN
m
co
9 9
2 8
9 9
43
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