Ic9605/Ic9608 - Sharp LC-32LE600E Service Manual

2.18. IC9605/IC9608 (VHiLV5893M+-1Y)
2.18.1 Block Diagram
2.18.2 Pin Connections and short description
Pin No. Pin Name
1 BOOT
2 VIN
3 SW
4 GND
5 FB
6 COMP
7 EN
8 SS
I/O
I Upper part MOS transistor boot strap capacity connection terminal.
Connect the boot capacity of about 0.022µF between SW terminals.
The boot capacity series resistance (about100Ω) is effective for stable operation.
I Input power source terminal.
Connect very big capacity (10µF 2 or more) between GND.
I Power switch terminal.
Connect the output LC filter. Connect the above-mentioned capacity between BOOT terminals.
— Ground
I Feedback terminal.
The output voltage is set by the division resistance of output voltage (Vout-FB-GND).
I Phase compensation terminal.
Connect external capacity and resistance for the phase compensation of the DC/DC converter close loop.
I Enable terminal
It operates the converter by a high voltage or the opening. It stops with GND the converter operation.
— Soft start terminal.
The soft start time is set by built-in 10µA source voltage and external soft start capacity.
LC-32/40/46LE600E/RU/S (1st Edition)
Pin Function
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