LH1560F View Datasheet(PDF) - Sharp Electronics
Part Name
Description
MFG CO.
'LH1560F' PDF : 30 Pages View PDF
SHARP
LHl560F
17
8. Precaution
OPrecaution when connecting or disconnecting the power
This LSI has a high-voltage
LC driver, so it may be permanently damaged by
a high current which may flow if a voltage is supplied to the LC driver
power supply while the logic system power supply is floating.
The detail is as follows.
*When connecting the power supply, connect the LC drive power after
connecting the logic system power. Furthermore. when disconnecting
the
power, disconnect the logic system power after disconnecting
the LC drive
power.
*We recommend-you connecting the serial resistor(50-100
Q) or fuse to the
LC drive power V0 of the system as a current limitter.
And set up the
suitable value of the resistor in consideration
of LC display grade.
And when connecting the logic power supply, the logic condition of this LSI
inside is insecurity.
Therefore connect the LC drive power supply after
resetting logic condition of this LSI inside on DISPOFF function. After that,
cancel the m
function after the LC drive power supply has become
stable. Furthermore. when disconnecting
the power, set the LC drive output
pins to level Vss on DISPOFF ‘function.
After that, disconnect the logic
system power after disconnecting
the LC drive power.
When connecting the power supply, show the following recommend sequence.
V DD
vo V-I
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