Sharp LC-32DH57E-BK Service Manual page 78

LC-32DH57E-BK/RU-BK/S-BK
2.17. IC9611 (VHiTCR5SB25-1Y)
2.17.1 Pin Connections and short description
Pin No. Pin Name
1 VIN
2 GND
3 CONTROL
4 NC
5 VOUT
2.18. IC9604 (VHiLV58072M-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 Input power source terminal.
A small, ceramic type can be used for the input capacitor (0.1µF).
— Ground
I Control terminal. In control voltage ON, it is 1.5-6V, and turning off is 0.25V or less.
Control voltage
HIGH
LOW
— No connection
O Output voltage terminal.
The output voltage of TCR5SB25 is 2.5V±0.05V.
A small, ceramic type can be used for the output capacitor (1.0µF).
I/O
I Bootstrap Terminal
Connect the boost capacity of about 0.022µF between SW terminals.
I Input Voltage Terminal
Connect very big capacity between GND.
O Power Switch Terminal
Connect output LC filter. Moreover connect the above-mentioned capacity between BOOT terminals.
— Ground
I Feed Back Terminal
The output voltage is set by the division resistance between the output voltages.
I Phase Compensation Terminal
The phase amends external capacity and the resistance of the DC/DC converter close loop are connected.
I Enable Terminal
The converter works by the High voltage impression.
— Softstart Terminal
The soft start time is set by built-in 10µA source voltage and external soft start capacity.
Pin Function
Output voltage
ON
OFF
Pin Function
5 – 22