HCD-DH50R/DH70SWR
60
POW-SUPPLY 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 PROTECT I
Connected to the external capacitor for determines intermittent operation period when abnor-
mal 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 P-GND - Ground terminal for low voltage side driver
12 VG (L) O Low voltage side driver drive signal output terminal
13 - - Not used
14 VB O Power supply output terminal for high voltage side driver
15 VS I High voltage side driver reference voltage input terminal
16 VG (H) O High voltage side driver drive signal output terminal
17 - - Not used
18 VD I
Terminal for drain-kick startingWhen starting, current is supplied directly from the rectifi cation
diode to VC1
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