Sony SA-WFT7 Service Manual page 20

SA-FT7ED/WFT7/SS-CNF7ED/FRF7ED/WS-FT7
• IC Pin Description
IC101 CXD9841P (DC-DC CONVERTER) (POWER Board)
Pin No. Pin Name
1 VSENSE
2 F/B
3 CT
4 RT
5 GND
6 TIMER
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
20
I/O
I Terminal for detection of AC line voltage.
I Terminal for frequency modulation with FB.
I Capacitor for oscillator.
I Oscillator frequency setting resistor
— Ground
I Capacitor determines the period of abnormal detection.
I Capacitor for a soft start timing.
I Power supply terminal for the control circuit.
I Terminal for over current detection and didt protection.
O Power supply terminal for a driver.
— Ground for low side driver.
O Output of low side driver.
— Not used. (Open)
O Power supply terminal for high side driver.
I Reference voltage terminal for high side driver.
O Output of high side driver.
— Not used. (Open)
I Terminal for Drain-Kick starting.
Pin Description