![](/html/Holtek/244671/page5.png)
Circuit for increasing output voltage
V IN
V IN
0 6%": :
V OUT
S e r ie s
C1
C2
10mF
GND
10mF
IS S
V OUT
V XX
R1
R2
C om m on
S in g le p o in t G N D
C om m on
VOUT
= VXX
(1+
R2
R1
)
+
I SS R2
Circuit for increasing output voltage
V IN
V IN
C1
10mF
C om m on
0 6%": :
V OUT
S e r ie s
C2
GND
10mF
IS S
D1
S in g le p o in t G N D
V OUT
V XX
R1
C om m on
HT74XX
Constant current regulator
VOUT = VXX + VD1
V IN
V IN
0 6%": :
V OUT
S e r ie s
C1
10mF
GND
C2
10mF
V XX
RA
IS S
IO U T
RL
C om m on
I OUT
= VXX
RA
+ I SS
5
January 26, 2000