Purdy AND1743BST-LED - Manual (Page 2)

Displays
Purdy Electronics Corporation • 755 North Pastoria Avenue • Sunnyvale, CA 94085-2918
Tel: 408-523-8200 • Fax: 408-733-1287 • [email protected] • www.purdyelectronics.com
01/13/13 2
Optical Characteristics
Item Symbol Condition Min. Typ. Max. Degree
Viewing Angle Range
φ
f (12 o’clock)
When Cr ≥ 2
— 41 —
degree
φ b (6 o’clock) — 34 —
φ l (9 o’clock) — 35 —
φ r (3 o’clock) — 30 —
Rise Time Tr
VDD-VO=17.8 V
Ta=25ºC
— 140 — mS
Fall Time Tf — 240 —
Frame Frequency Frm — 64 — Hz
Contrast Cr — 5 —
Brightness of Backlight L
VF=5.0V
650 750 — cd/m 2
Peak Emission Wavelength
λ
P X-0.28, Y=0.29 X=0.31, Y=0.32 X=0.34, Y=0.35 nm
AND1743BST-LED
Intelligent Character Display
Electrical Characteristics
Item Symbol Condition Min. Typ. Max. Unit
Power Supply for Logic VDD-VSS – 4.5 5.0 5.5 V
LCM Recommend
LCD Module Driving Voltage
VIL L Level 0 — 0.6 V
VIH H Level 2.2 — VDD V
VDD-V0
Bias=1/12
Ta = -20ºC — — — V
Ta = 25ºC 16.7 17.8 18.5 V
Ta = +70ºC — — — V
Power Supply Current for LCM IDD VDD=5V
VDD-VEE=17.8V
— 15.6 18 mA
IEE — 24 —
LED Forward Voltage VF — — 5.0 — V
LED Forward Current IF Vf=5V 180 200 240 mA
LED Reverse Current IR VR=8V — — 0.3 mA
Environmental Absolute Maximum Ratings - Wide Temperature
Item Operating Storage
Min. Max. Min. Max.
Ambient Temperature -20 ºC +70 ºC -30 ºC +80 ºC
Humidity (without condensation) Note1,2 Note 1,3
Note 1: Background color changes slightly depending on ambient temperature. This phenomenom is reversible.
Note 2: Ta ≤ 70ºC: 75 RH max; Ta > 70 ºC: absolute humidity must be lower than the humidity of 75% RH at 70ºC
Note 3: Ta at -30ºC will be <48 hrs, at 80ºC will be <120 hrs when humidity is higher than 75%.