Purdy AND1743MST-LED - Manual (Page 2)

Displays
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
Tel: 408-523-8200 • Fax: 408-733-1287 • [email protected] • www.purdyelectronics.com
03/13/11 2
Electrical Characteristics
Item Symbol Condition Min. Typ. Max. Unit
Power Supply for Logic VDD-VSS – 4.5 5.0 5.5 V
Input Voltage
VIL L Level 0 – 0.6 V
VH H Level 2.2 – VDD V
VDD-VO
Bias - 1/12
Ta = -20ºC – – – V
Ta = 25ºC 15.8 16.3 16.8 V
Ta = 70ºC – – – V
LED Forward Voltage VF If=160 mA – 3.4 3.6 V
LED Forward Current IF – – 160 – mA
LED Reverse Current IR VR=5V – – 0.3 mA
Optical Specifi cations
(Ta = 25 ºC)
Item Symbol Remarks
Min.
Specifi cations
Typ. Max.
Units
Viewing Angle
Φ f (12 o’clock)
When CR ≥ 2
– 41 –
deg
Φ
b (6 o’clock) – 34 –
Φ
l (9 o’clock) – 35 –
Φ r (3 o’clock) – 30 –
Rise Time Tr
VDD-VO = 16.3 V
Ta = 25ºC
– 140 – mS
Fall Time Tf – 240 –
Frame Frequency Frm – 64 – Hz
Congrast Cr – 5.0 – –
Brightness of Backlight L
IF = 160 mA
160 200 – cd/m 2
Peak Emission Wavelength λ P – x = 0.31
y = 0.32
– nm
Environmental Absolute Maximum Ratings
Item Wide Temperature
Operating Storage
Min. Max. Min. Max.
Ambient Temperature -20 ºC +70 ºC -30 ºC +80ºC
Humidity (without condensation) Note 4, 5 Note 4,6
Note 4: Background color changes slightly depending on ambient temperature. This phenomenon is reversible.
Note 5: Ta ≤ 70ºC: 75 RH max; Ta > 70ºC: absolute humidity must be lower than the humidity of 75% RH at 70ºC.
Note 6: Ta at -30ºC will be <48 hrs, at 80ºC will be < 120 hrs when humidity is higher than 75%.
AND1743MST-LED
Intelligent Character Display