GP1UX31QS Datasheet, PDF (4/5 Pages) Sharp Electrionic Components – Holder-less Type IR Detecting Unit for Remote Control

GP1UX31QS Series
Precautions for Operation
1. When this infrared remote control detecting unit shall be adopted for wireless remote control, please use the following signal format .
(NEC code,RC-6code etc.)
Total duty ratio D t (Emitting time t N / Transmitting time for 1 block T) : 40% or less.
ON signal time and OFF signal time
Supply Voltage
ON signal time per 1bit
OFF signal time per 1bit
Vcc
2.7 3.0V
3.0 to 5.5V
tON
200 s or more
tOFF 400 s or more 300 s or more
Transmitting time for 1 block:T
T_ON
t₁
t₂
t₃
t_n
In case the signal format of total duty and/or ON/OFF signal time dosen`t meet the conditions noted above, there is a
case that reception distance much reduces or output dose not appear.
2. Use the light emitting unit (remote control transmitter), in consideration of performance, characteristics, operating conditions of
light emitting device and the characteristics of the light detecting unit.
3. Pay attention to a malfunction of the light detecting unit when the surface is stained with dust and refuse.
Care must be taken not to touch the light detector surface.
If it should be dirty, wipe off such dust and refuse with soft cloth so as to prevent scratch. In case some solvents are required, use
methyl alcohol, ethyl alcohol or isopropyl alcohol only.
Also, protect the light detecting unit against flux and others, since their deposition on the unit inside causes reduction of the
function, fading of markings such as the part number.
4. Unnecessary force shoud not be applied to terminal.
5. Do not push the light detector surface (photodiode) from outside.
6. To avoid the electrostatic breakdown of IC, handle the unit under the condition of grounding with human body, soldering iron, etc.
7. Since conductive thermo plasticity is used in 2nd mold regin,please be careful not to come in contact with PCB land
pattern.
8. External Circuit Examples (Mount the outer parts as near the unit as possible).
GND
C_O
V_CC
V_OUT
GND
R₁
V_e
(Circuit parameters)
V_O
R1=475%
C1=47F
In setting R1 and C1, use suitable values after considering under the real condition
The circuit constant is a example. It is difference from mounting equipment. Please select it by your mounting equipment.
This device has a transistor as protection element between VCC and GND to improve anti-static electricity proof.
Please be carefully not to apply exceeding the absolute maximum ratings of applying voltage and continuous high voltage spike
noise because there is cases that transistor will be short by secondary breakdown generally. In order to do difficultly, Please add CR
filter(47(1/10W), 10F or more)such as external circuit example above near V CC.
Sheet No.: OP06013
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