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UPD168103A Datasheet(PDF) 6 Page - NEC

Part No. UPD168103A
Description  5-CHANNEL OPERATIONAL AMPLIFIER, IRIS DRIVER, AND 4-CHANNEL H-BRIDGE DRIVER
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Maker  NEC [NEC]
Homepage  http://www.nec.com/
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 6 page
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Data Sheet S17655EJ1V0DS
6
µ PD168103A
3.3 IRIS Motor Driving Block
Table 3
−2. I/O Truth Table of the IRIS Driving Block
IRIN1
IRIN2
Operation Mode
Output State of H-bridge
OUTIRP
OUTIRM
Q1
Q2
Q3
Q4
L
L
Normal operation
ON
OFF
OFF
ON
Linear
Linear
(Amp. control)
(Linear)
L
H
Shutter
OFF
ON
ON
OFF
L
H
H
L
IRIS open
ON
OFF
OFF
ON
H
L
H
H
Output all OFF
OFF
OFF
OFF
OFF
Hi-Z
Hi-Z
Figure 3
−1. Description of the Operation Figure of the IRIS Motor Driving Block
INIRP
INIRM
+
Q4
VIRIS
OUTIRP
INIRP
INIRM
OUTIRM
+
Normal
Shutter
OUTIRP
OUTIRM
VSHUTTER
Open
All OFF
VIRIS
OUTIRP
OUTIRM
VIRIS
OUTIRP
OUTIRM
VSHUTTER
Q4
VIRIS
OUT7A
OUT7B
Q2
Q3
Q1
VSHUTTER




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