NL12810CAC23_02A NEC, NL12810CAC23_02A Datasheet - Page 6

• Manufacturer Part Number: NL12810CAC23_02A
• Description: TFT COLOR LCD MODULE
• Manufacturer: NEC

POWER SUPPLY DESIGN
(1) Please note that the supply voltage must not be applied while the control signals (SEL, UP, DOWN, EXIT,
(2) If the power supply voltage is applied while UP and DOWN are connected to GND, the input control signals
(3) Inverter current wave
(4) Ripple of supply voltage
6
Example of the power supply connection
BRT+ and BRT–) are connected to GND. Otherwise the module may cause malfunction.
become ineffective. In this case, please turn off the power once and turn on the power while UP and DOWN are
connected to GND again.
Inverter current wave is as follows.
Acceptable range
Remark The acceptable range of ripple voltage includes spike noise.
a) Separate the power supply
Power
Power
1400 (mA)
Maximum luminance control: 100%
Minimum luminance control: 20%
Luminance control frequency
0 (A)
V
V
DD
DD
B
(for logic and LCD driver)
Luminance control frequency
Duty
Data Sheet EN0427EJ1V0DS00
100 mVp-p
V
DD
=
Input Vsync frequency
Input Vsync frequency
Input Vsync frequency > 75 Hz: K = 3.6
b) Put the filter
Power
K
75 Hz: K = 4.6
Filter*
Filter*
NL128102AC23-02A
(for backlight)
200 mVp-p
V
DD
V
V
B
DD
DD
B