Protector 
Power 
Signal 
Driver 
Automotive ET1651
General Description
ET1651 is a special circuit for LED driver control with keyboard scanning interface, which integrates MCU digital interface, data latch, LED high voltage driver, keyboard scanning and other circuits, which can drive up to 28 LED and support common anode digital tube.
Mainly used in induction cooker, microwave oven and small household appliances display driver.
Features
Power CMOS technology
Display mode (7 segments × 4 bits), supports up to 28 LED and Co-anode nixie tube output
Keyboard scanning (1×7bit)
Brightness adjustment circuit (duty cycle 8 level adjustable)
2-wire serial interface (CLK, DIO)
Built in RC oscillation
Built in power on reset
Built in automatic blanking circuit
Package: SOP16
Pin Configuration
Application Circuits
