Toshiba – Toshiba TMP87CP24AF User Manual
Page 96
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TOSHIBA
TMP87CM24A/P24A
Та
Figure 2-47. Temperature Characteristics of Voltage Booster Output
Notice of using LCD driver
(1)
The falling time and fluctuation of power supply voltage.
When
LCD
driver
is
used
with
the
following
condition,
LCD
may
not
be
displayed
temporarily,
because the V1/V2/V3 pins output will be unstable by stopping of LCD booster circuit.
Therefore, please take an enough time by software, before enabling LCD.
a) When the falling time of power supply voltage is shorter than 1 ms, within an operating voltage,
(at 2.2V to 5.5V, Торг = -10 to 70c)
b) When the fluctuation of power supply within 1 ms is bigger than 0.7V.
(2)
Powerdown of an instant.
When
power
supply
voltage
falls
out
of
operating
voltage
and
then
rises
within
operating
voltage,
the
maximum
period
that
the
V1/V2/V3
pins
output
will
resume
is
1
s.
(Торг
=
-
10
°C).
Therefore,
please take an enough time by software, before enabling LCD
3
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24-96
2002
-
10-03