HW-5P-1

Ambient light detector

photosensitive sensor

(Direct replacement of photosensitive resistance)

 type：HW5P-1

SHENZHEN HAIWANG SENSOR CO.,LTD

HW5P-1

● Instead of photosensitive resistors CdS

● RoHS

● Ordinary light-sensitive sensor

Specification

typical application

   Instead of photosensitive resistors（CdS）；

   Adjust background light, such as TV, PDA, camera, LCD/LED display and mobile phone, etc.

   Control toys and lighting equipment。

Speciality 

   Special filter epoxy resin package, spectral response characteristics similar to human eyes;

   Linear output with light intensity change;

   It has certain temperature stability；

   Low dark current, low working illumination；

  Compliance with ROHS instructions/lead-free/cadmium free；

Structure schematic and internal principle（ unit：mm）

absolute rating Ta=25℃  

※1 Weld at the base of the rubber body 4mm. The welding temperature is controlled in the rating. The time is within 5 seconds。

current-illumination characteristic  Ta=25℃

 ※ 2 Ev ,Ee The test light source adopts 2854K color temperature source。

Photoelectric characteristic curve                                              

Light current and light intensity	Temperature and power consumption

Test schematic diagram                                                

注： light current =Vout/Rss    

Rss  high stable resistance

application circuit                                             

2kinds of typical control circuit 

left：By adjusting the Rv make illumination reaches a certain value LED turn off；

right：By adjusting the Rv make illumination reaches a certain value LED turn on；

Light control lamp schematic diagram

capacitors C1, C2, R3 and diode D1 and the regulator DW, composed of simple buck rectifier circuit capacitance, obtained after the DC voltage of about 12V power. Transistor BG, light sensors HW5P-1 and triac, etc., consisting of a photoelectric switch circuit.

     In the daytime, light sensors HW5P-1 was low due to the light resistance, BG base potential drop tube so BG off, no voltage output resistor R1, the bidirectional thyristor SCR is turned off, the lamp LAMP does not light. When night falls, HW5P-1 due to its dark without light resistance increases, the BG base potential increases conduction, the output voltage on R1 triggered thyristor SCR conduction, have electric street lights lit. Adjustment potentiometer W, adjustable height base potential of BG, which adjust the light control sensitivity.

kind notice:

     Do not use the sensor in a range of circumstances beyond product specifications;

     Application circuit mentioned in this specification only used for example, note that according to external facilities to design the circuit and adjust the parameter settings;

     There CMOS IC within the sensor should avoid electrostatic breakdown;

     Shall ensure to the maximum rated soldering temperature range during welding or just avoid external force to the pin, when welding is completed can not be repeated;

     This product complies with European RoHS Directive;

     Damage and pollution on the surface will affect the light current, should pay attention to moisture.

     DIP packaging per pack 1000;

absolute rating Ta=25℃  

※1 Weld at the base of the rubber body 4mm. The welding temperature is controlled in the rating. The time is within 5 seconds。

current-illumination characteristic  Ta=25℃

 ※ 2 Ev ,Ee The test light source adopts 2854K color temperature source。