7 Segment Led Display Driver Ic

7446 is a bcd to 7 segment display driver ic with active low outputs.

7 segment led display driver ic.

The voltage and current capability of the driver stage determines which type of 7 segmnet numerical displays can be driven. 7446 seven segment decoder driver. The max6955 is a compact display driver that interfaces microprocessors to a mix of 7 segment 14 segment and 16 segment led displays through an i 2 c compatible 2 wire serial interface. Tweaking the value of these resistors can help increase decrease the brightness of the leds.

Circuit for interfacing a 7 segment display with arduino without using any driver ic you must connect the resistors between the led pins and the arduino digital i o pins. The max6955 drives up to 16 digits 7 segment 8 digits 14 segment 8 digits 16 segment or 128 discrete leds while functioning from a supply voltage as low as 2 7v. The ic is stand alone and requires no external components other than the led current limiting resistors. If you have other indicator needs then of course they will also drive lots of leds in the other digit positions.

A typical high voltage cmos ic can operate up to a maximum of 20 v and can source up to 25 ma at each output. By far the best and cheapest way to drive seven segment displays such as this is to use multiplexed drivers like the ams as1108 4 digit or the maxim max7219 8 digit constant current drivers even if you only need a couple of displays. This makes it possible to drive led displays low voltage fluorescent displays and even incandescent displays. Mouser offers inventory pricing datasheets for 7 segment display lcd drivers.

This ic is used where we need to driving common cathode displays like 7 segment display low voltage fluorescent display and incandescent display. Cd4511 is a bcd to 7 segment latch decoder driver ic formed with cmos logic and npn bipolar transistor output devices on an immovable structure. Cd4511 7 segment driver ic.