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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
edited 23 mins ago
Michel Keijzers
4,78162150
asked 2 hours ago
aymane
61
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up vote
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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
edited 23 mins ago
Michel Keijzers
4,78162150
asked 2 hours ago
aymane
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
add a comment |Â
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
edited 23 mins ago
Michel Keijzers
4,78162150
asked 2 hours ago
aymane
61
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
edited 23 mins ago
Michel Keijzers
4,78162150
asked 2 hours ago
aymane
61
edited 23 mins ago
Michel Keijzers
4,78162150
asked 2 hours ago
aymane
61
edited 23 mins ago
Michel Keijzers
4,78162150
edited 23 mins ago
Michel Keijzers
4,78162150
edited 23 mins ago
Michel Keijzers
4,78162150
4,78162150
asked 2 hours ago
aymane
61
asked 2 hours ago
aymane
61
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
add a comment |Â
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
add a comment |Â
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.
answered 1 hour ago
Spehro Pefhany
195k4139388
add a comment |Â
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
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.
answered 1 hour ago
Spehro Pefhany
195k4139388
add a comment |Â
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.
answered 1 hour ago
Spehro Pefhany
195k4139388
add a comment |Â
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.
answered 1 hour ago
Spehro Pefhany
195k4139388
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.
answered 1 hour ago
Spehro Pefhany
195k4139388
edited 1 hour ago
answered 1 hour ago
Spehro Pefhany
195k4139388
answered 1 hour ago
Spehro Pefhany
195k4139388
answered 1 hour ago
Spehro Pefhany
195k4139388
195k4139388
add a comment |Â
add a comment |Â
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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
1 hour ago