HT0313A Tomato LSI, Inc., HT0313A Datasheet - Page 25

• Manufacturer Part Number: HT0313A
• Description: 65COM/132SEG DRIVER & CONTROLLER FOR STN LCD
• Manufacturer: Tomato LSI, Inc.

HT0313A
a. Voltage converter circuits
TOMATO LSI Inc.
Figure 6-9. Two times boosting circuit
Figure 6-11. Four times boosting circuit
These circuits boost up the electric potential between V
and boosted voltage is outputted from VOUT pin.
HT0313A
HT0313A
GND
GND
VDD
VDD
VDD
VDD
VSS
VSS
65COM / 132SEG DRIVER & CONTROLLER FOR STN LCD
VOUT
C3+
C3-
C2+
C2-
C1+
C1-
/DC5
VOUT
C3+
C3-
C2+
C2-
C1+
C1-
/DC5
25
VDD
VDD
C1
C1
C1
C1
C1
C1
VOUT = 2 x VDD
VDD
VSS
VOUT = 4 x VDD
VDD
VSS
Figure 6-12. Five times boosting circuit
DD
Figure 6-10. Three times boosting circuit
and V
SS
HT0313A
HT0313A
to 2, 3, 4 or 5 times toward positive side
GND
VDD
VDD
GND
VSS
VDD
VDD
VSS
VOUT
C3+
C3-
C2+
C2-
C1+
C1-
/DC5
VOUT
C3+
C3-
C2+
C2-
C1+
C1-
/DC5
VDD
GND
(C1 = 1.0 to 4.7 F)
C1
C1
C1
C1
C1
C1
C1
Ver 0.0
VOUT = 3 x VDD
VDD
VSS
VOUT = 5 x VDD
VDD
VSS