ml9289 Oki Semiconductor, ml9289 Datasheet - Page 25

• Manufacturer Part Number: ml9289
• Description: Vacuum Fluorescent Display Tube Controller Driver
• Manufacturer: Oki Semiconductor

APPLICATION CIRCUIT
Notes:
1. The V
2. The V
Reference data
constants R
and ZD to the voltage used.
V
V
DD
V
DISP
DD
DD
DISP
Shown below is a chart showing the V
Care must be taken that the entire power consumption will not exceed the power dissipation.
voltage depends on the power supply voltage of the microcontroller used. Adjust the value of the
voltage depends on the vacuum fluorescent display tube used. Adjust the value of the constants R
1
V
and C
DISP
C
4
–30
–25
–20
–15
–10
–5
Voltage vs. Output Current of Each Driver
1
0
C
C
to the power supply voltage used.
17
2
3
controller
Output port
Alphanumeric fluorescent display tubes
22
Micro-
GND
V
DD
V
GND
DISP
27
Voltage
32
RESET
CS
CP
DA
ZD
R
DISP
37
2
GND
V
(SEGMENT)
voltage vs. output current of each driver.
DD
ANODE
42
AD1-2
V
ML9289-01
(V)
2
DISP
(SEGMENT)
COM1–COM16
(Condition: V
AD1–AD2
(Condition: V
SEG1–SEG16
(Condition: V
SEG1-16
ANODE
16
C
OSC0
1
GND
COM1-16
R
OH
OH
OH
1
(DIGIT)
GRID
16
= V
= V
= V
Heater transformer
DISP
DISP
DISP
–1.5 V)
–1.5 V)
–1.5 V)
V
DD
FEDL9289-01
ML9289-xx
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