LED显示屏驱动IC MBI5167

With PrecisionDrive™ technology, MBI5167 is designed for LED displays which require to be operated at low current and to match the luminous intensity of each channel. It provides supply voltage and accepts CMOS logic input at 3.3V and 5.0V to meet the trend of low power consumption. MBI5167 contains a serial buffer and data latches which convert serial input data into parallel output format. At MBI5167 output stage, sixteen regulated current ports are designed to provide uniform and constant current sinks for driving LEDs within a large range of VF variations. The excellent output accuracy is within ±3% between channels and within ±6% between ICs. MBI5167 accepts an input voltage range from 3V to 5.5V and maintains a constant current up from 3mA to 45mA determined by an external resistor, Rext, which gives users flexibility in controlling the light intensity of LEDs. MBI5167 guarantees to endure maximum 17V at the output port. The high clock frequency, 25MHz, also satisfies the system requirements of high volume data transmission.

Feature                        
8 constant-current output channels
Constant output current invariant to load voltage change:
Constant output current range per channel:
3 - 45mA @ VDD= 5V;
3 - 30mA @ VDD= 3.3V
Excellent output current accuracy:
between channels: ±3% (max.), and
between ICs: ±6% (max.)
Output current adjusted through an external resistor
Staggered output delay
25MHz clock frequency
Schmitt trigger input
3.3V/5V supply voltage
“Pb-free & Green” Package
Applications
﹡Message Signs
﹡Outdoor LED Video Displays
﹡Indoor LED Video Displays