Table of Contents
Advertisement
Electrical Characteristics
Item
Operating Temperature Range
Storage Temperature Range
Supply Voltage
Supply Current
"H" Level Input
"L" Level Input
"H" Level Output
"L" Level Output
Supply Voltage for LED Backlight Driver
Supply Current for LED Backlight Driver
Backlight PWM Frequency
Optical Characteristics
Item
Top
Optimal
Bottom
Viewing
Left
Angles
Right
Contrast Ratio
Luminance
Response Time
Rise + Fall
Capacitive Touch Panel Material Characteristics
Property
IC
ITO Glass thickness
Cover Lens Thickness
Surface Hardness
Light transmission
Operating Humidity
Storage Humidity
Backlight Driver Configuration
The Backlight Driver Enable signal is connected to the FT81x backlight control pin. This signal is controlled by two
registers: REG_PWM_HZ and REG_PWM_DUTY. REG_PWM_HZ specifies the PWM output frequency – the range
available on the FT81x is 250 to 10000Hz, however the on-board backlight driver's max PWM frequency is 1000Hz.
Therefore, for proper use of the PWM function available on this module, the PWM frequency should not exceed 1000Hz.
REG_PWM_DUTY specifies the duty cycle – the range is 0 to 128. A value of 0 turns the backlight completely off, while a
value of 128 provides maximum backlight brightness.
For the above register definitions, please refer to pages 80-81 of the official FT81x Series Programmers Guide:
http://www.ftdichip.com/Support/Documents/ProgramGuides/FT81X_Series_Programmer_Guide.pdf
Symbol
Condition
T
Absolute Max
OP
T
Absolute Max
ST
V
DD
I
V
DD
DD
V
IH
V
IL
V
OH
V
OL
V
BL
I
V
= 3.3V
BL
BL
I
V
= 5.0V
BL
BL
f
PWM
Symbol
Condition
ϕY+
ϕY-
CR ≥ 10
θX-
θX+
CR
-
L
-
V
T
+ T
T
= 25°C
R
F
OP
Value
Unit
FT5406EE8
-
0.55
mm
0.70
mm
≥6
H
≥83%
-
20~90
RH
20~90
RH
Min.
-20
-30
-
3.0
= 3.3V
-
-
2.0
-
-
-
V
-0.4
DD
-
-
-
2.8
-
-
-
250
Min.
Typ.
-
65
-
55
-
70
-
70
-
400
180
230
-
25
[6]
Typ.
Max.
Unit
-
+70
⁰C
-
+80
⁰C
3.3
3.6
100
-
mA
-
-
-
0.8
-
-
-
0.4
3.3
5.5
375
-
mA
220
-
mA
-
1000
Hz
Max.
Unit
-
⁰
-
⁰
-
⁰
-
⁰
-
-
2
-
cd/m
35
ms
V
V
V
V
V
V
Advertisement
Table of Contents
