LQ197V3DZ89 Sharp Electronics, LQ197V3DZ89 Datasheet - Page 7

• Manufacturer Part Number: LQ197V3DZ89
• Manufacturer: Sharp Electronics

Specifications of LQ197V3DZ89

• Lead Free Status / Rohs Status: Not Compliant

4-3. Inverter driving for back light
4-4. Back light driving
【Note 1】Inverter ON／OFF
【Note 2】ＰＷＭ light adjustment analogue input
By 0∼5 V analogue input voltage, brightness control is adjusted.
【Note 1】Lamp life time is defined as below in the continuous operation under the condition of Ta=25℃.
【Note 2】 Definition is based upon when the longer edge of the LCD module is placed horizontally (in landscape
Note) 0∼(0.3) V: Duty is 100%.
CN3 Supplying for Inverter Power Using connector : S12B-PH-SM3-TB(JST)
The back light system is under-lighting type with 5 CCFTs(Cold Cathode Fluorescent Tube).
The characteristics of the lamp are shown in the following table. The value mentioned below is applicable to each
individual CCFT.
Lamp Life time
Terminal #
Do not adjust the voltage between 0.3∼0.7 V, as the range cannot be
Item
・ Brightness becomes 50% of the original value under standard condition.
due to the lopsided mercury in the CCFT lamps.
position).
The length of LCD module’s life time may vary if the module is placed vertically (in a portrait position),
Input Voltage
Input Voltage
１０
１１
１２
１
２
３
４
５
６
７
８
９
3.0∼5.0V
0∼0.5V
5.0V
0V
* GND(Ground) of Inverter doesn’t contact GND(Ground) of LCD module.
Symbol
Signal
T
GND
GND
GND
GND
Ｖ
N.C.
N.C.
N.C.
Ｖ
Ｖ
Ｖ
Ｖ
L
BRT
ON
INV
INV
INV
Matching connector : PHR-12(JST)
50000
Min.
ＰＷＭ light adjustment analogue input
Inverter power supply voltage ( +12V)
This is electrically opened.
This is electrically opened.
This is electrically opened.
Typ.
Back light ON／OFF
Brightness Control（100%）: Bright
-
Brightness Control（20%）: Dark
Functions
GND
GND
Inverter in action
Inverter at still
Functions
Functions
Max.
-
detected.
Hour
Unit
LD−17221−4
【Note 1,2】
【Note 1】
【Note 2】
Remarks
Remarks