52
HCD-SPZ50/SPZ70
POWER BOARD IC11 CXD9841P (POWER CONTROL)
Pin No. Pin Name I/O Description
1
VSENSE I AC line voltage detection signal input terminal
2
F/B I Feed back signal input terminal for frequency modulation of oscillator
3
CT I Connected to the external capacitor for oscillator duty/frequency setting
4
RT I Connected to the external resistor for oscillator frequency setting
5
GND - Ground terminal
6
TIMER I
Connected to the external capacitor for determines intermittent operation period when abnormal
detection state
7
SS I Connected to the external capacitor for soft start timing
8
VC1 I Power supply terminal for control circuit "L": stop
9 OCP I
Over current detection signal and didt protection signal input terminal
10
VC2 O Power supply output terminal for driver
11
PGND - Ground terminal for low voltage side driver
12 VG (L)
OLow voltage side driver drive signal output terminal
13
--Not used
14
VG O Power supply output terminal for high voltage side driver
15
VS
I
High voltage side driver reference voltage input terminal
16 VG (H)
OHigh voltage side driver drive signal output terminal
17
--Not used
18
VD I
Terminal for drain-kick starting
When starting, current is supplied directly from the rectification diode to VC1
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
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