Sony HCD-HX50BTR Service Manual page 56

HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
SW POWER BOARD IC11 CXD9841P (POWER CONTROL)
Pin No. Pin Name
1 VSENSE
2 F/B
3 CT
4 RT
5 GND
6 PROTECT
7 SS
8 VC1
9 OCP
10 VC2
11 P-GND
12 VG (L)
13 -
14 VB
15 VS
16 VG (H)
17 -
18 VD
56
I/O
I AC line voltage detection signal input terminal
I Feed back signal input terminal for frequency modulation of oscillator
I Connected to the external capacitor for oscillator duty/frequency setting
I Connected to the external resistor for oscillator frequency setting
- Ground terminal
Connected to the external capacitor for determines intermittent operation period when abnor-
I
mal detection state
I Connected to the external capacitor for soft start timing
I Power supply terminal for control circuit
I Over current detection signal and didt protection signal input terminal
O Power supply output terminal for driver
- Ground terminal for low voltage side driver
O Low voltage side driver drive signal output terminal
- Not used
O Power supply output terminal for high voltage side driver
I High voltage side driver reference voltage input terminal
O High voltage side driver drive signal output terminal
- Not used
Terminal for drain-kick starting
I
When starting, current is supplied directly from the rectifi cation diode to VC1
Description
"L": stop