Voltage Converter - Epson S1F76540M0C Series Technical Manual

5.2 Voltage Converter

The voltage converter, which consists of boosting control circuit and voltage converter, boosts the input power
supply voltage VI to four times (triple or double) using clocks from the clock generator. However, the 3rd or
double boosting output cannot be obtained simultaneously with for the quadruple boosting. Figure 5.2 shows
the potential relations at quadruple (3rd or double) boosting.
In the parallel connection, the C2P pin is used as a clock output pin in the master side (see Figure 9.8).
Double boosting
Figure 5.2 Boosting potential-relation diagram (At VI = -5V)
[Notes on connecting the capacitor for voltage conversion]
When connecting the capacitor to the C1P, C2P, C1N, C2N, C3N, and VO pins, place the capacitor near this IC
so that the cable is as short as possible.
S1F76540M0C Series Technical Manual
(Rev.1.1)
3rd boosting
Quadruple boosting
5. FUNCTIONAL DESCRIPTION
V
VI (-5V)
-10V
-15V
-20V
EPSON
(0V)
DD
5