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Combined Negative Voltage Converter and Positive Voltage Doubler
HT7660
V DD
2 CAP+
8
VDD
10m.
4 CAP-
VO UT 5
3 VSS
V O UT= - V DD
D1
10m.
H T7660
10m.
D2
V O UT= 2 V DD - 2 V D
10m.
N o te : V D is fo r w a r d v o lta g e d r o p o f d io d e D 1 a n d D 2
Rev. 1.10
5
January 21, 2003