How much current does an 1602 LCD draw?

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I want to know how much current a 16x2 (1602) LCD draws when the backlight is OFF and ON?



NB: My multimeter is broken.






arduino power current power-electronics lcd







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  • Then you should refer to the datasheet (which should be linked in your question). Can you add it into your post? As far as I remember there are some cautions on the LED mentioned in the document that I had. Welcome to EE.SE.
    – Transistor
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up vote
1
down vote

favorite












I want to know how much current a 16x2 (1602) LCD draws when the backlight is OFF and ON?



NB: My multimeter is broken.






arduino power current power-electronics lcd







share|improve this question























  • Then you should refer to the datasheet (which should be linked in your question). Can you add it into your post? As far as I remember there are some cautions on the LED mentioned in the document that I had. Welcome to EE.SE.
    – Transistor
    1 hour ago












up vote
1
down vote

favorite









up vote
1
down vote

favorite











I want to know how much current a 16x2 (1602) LCD draws when the backlight is OFF and ON?



NB: My multimeter is broken.






arduino power current power-electronics lcd







share|improve this question















I want to know how much current a 16x2 (1602) LCD draws when the backlight is OFF and ON?



NB: My multimeter is broken.






arduino power current power-electronics lcd




arduino power current power-electronics lcd






share|improve this question















share|improve this question













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edited 23 mins ago









Michel Keijzers

4,78162150




4,78162150










asked 2 hours ago









aymane

61




61











  • Then you should refer to the datasheet (which should be linked in your question). Can you add it into your post? As far as I remember there are some cautions on the LED mentioned in the document that I had. Welcome to EE.SE.
    – Transistor
    1 hour ago
















  • Then you should refer to the datasheet (which should be linked in your question). Can you add it into your post? As far as I remember there are some cautions on the LED mentioned in the document that I had. Welcome to EE.SE.
    – Transistor
    1 hour ago















Then you should refer to the datasheet (which should be linked in your question). Can you add it into your post? As far as I remember there are some cautions on the LED mentioned in the document that I had. Welcome to EE.SE.
– Transistor
1 hour ago




Then you should refer to the datasheet (which should be linked in your question). Can you add it into your post? As far as I remember there are some cautions on the LED mentioned in the document that I had. Welcome to EE.SE.
– Transistor
1 hour ago










1 Answer
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Typically the LCD driver draws around 1mA or 1.1mA, not counting the external contrast voltage divider. They are fairly consistent between suppliers, as they are mostly based on an (originally) Hitachi-designed chip set HD44780/HD44100.



An LED backlight will draw MUCH more current and you'll have to refer to the individual datasheet to get that number. Typically in the range 50-200mA. For example, the Newhaven NHD-0216BZ-FL-YBW has typical backlight current of 120mA with a range of 90 to 130mA with a 5.0V supply. It does vary quite a bit from product to product though.






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    1 Answer
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    1 Answer
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    up vote
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    Typically the LCD driver draws around 1mA or 1.1mA, not counting the external contrast voltage divider. They are fairly consistent between suppliers, as they are mostly based on an (originally) Hitachi-designed chip set HD44780/HD44100.



    An LED backlight will draw MUCH more current and you'll have to refer to the individual datasheet to get that number. Typically in the range 50-200mA. For example, the Newhaven NHD-0216BZ-FL-YBW has typical backlight current of 120mA with a range of 90 to 130mA with a 5.0V supply. It does vary quite a bit from product to product though.






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      up vote
      5
      down vote













      Typically the LCD driver draws around 1mA or 1.1mA, not counting the external contrast voltage divider. They are fairly consistent between suppliers, as they are mostly based on an (originally) Hitachi-designed chip set HD44780/HD44100.



      An LED backlight will draw MUCH more current and you'll have to refer to the individual datasheet to get that number. Typically in the range 50-200mA. For example, the Newhaven NHD-0216BZ-FL-YBW has typical backlight current of 120mA with a range of 90 to 130mA with a 5.0V supply. It does vary quite a bit from product to product though.






      share|improve this answer
























        up vote
        5
        down vote










        up vote
        5
        down vote









        Typically the LCD driver draws around 1mA or 1.1mA, not counting the external contrast voltage divider. They are fairly consistent between suppliers, as they are mostly based on an (originally) Hitachi-designed chip set HD44780/HD44100.



        An LED backlight will draw MUCH more current and you'll have to refer to the individual datasheet to get that number. Typically in the range 50-200mA. For example, the Newhaven NHD-0216BZ-FL-YBW has typical backlight current of 120mA with a range of 90 to 130mA with a 5.0V supply. It does vary quite a bit from product to product though.






        share|improve this answer














        Typically the LCD driver draws around 1mA or 1.1mA, not counting the external contrast voltage divider. They are fairly consistent between suppliers, as they are mostly based on an (originally) Hitachi-designed chip set HD44780/HD44100.



        An LED backlight will draw MUCH more current and you'll have to refer to the individual datasheet to get that number. Typically in the range 50-200mA. For example, the Newhaven NHD-0216BZ-FL-YBW has typical backlight current of 120mA with a range of 90 to 130mA with a 5.0V supply. It does vary quite a bit from product to product though.







        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited 1 hour ago

























        answered 1 hour ago









        Spehro Pefhany

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