Product Summary

The MBI5031 is a PWM-Embedded LED Driver. MBI5031 is designed for LED video applications using internal Pulse Width Modulation (PWM) control with 12-bit gray scales. MBI5031 features a 16-bit shift register which converts serial input data into each 12-bit pixel gray scale of output port. At MBI5031 output port, sixteen regulated current ports are designed to provide uniform and constant current sinks for driving LEDs with a wide range of Vf variations. The output current can be preset through an external resistor. Moreover, the preset current of MBI5031 can be further programmed up or down to 128 gain steps for LED global brightness adjustment.

Parametrics

MBI5031 absolute maximum ratings: (1)Supply Voltage : 7 V; (2)Input Pin Voltage (SDI) : -0.4 to VDD + 0.4 V; (3)Output Current : +60 mA; (4)Sustaining Voltage at OUT Port : 17 V; (5)Data Clock Frequency : +25 MHz; (6)Gray Scale Clock Frequency : +8 MHz; (7)GND Terminal Current : +1000 mA; (8)Power Dissipation(On PCB, Ta=25°C) : 2.39W; (9)Operating Temperature : -40 to +85 ℃; (15)Storage Temperature : -55 to +150 ℃.

Features

MBI5031 features: (1)Backward compatible with MBI5026 in package; (2)16 constant-current output channels; (3)12-bit grayscale PWM control; (4)Scrambled-PWM technology to improve refresh rate; (5)Open-Circuit Detection to detect individual LED errors; (6)8-bit programmable output current gain; (7)Staggered output delay; (8)Maximum data clock frequency: 25MHz; (9)Schmitt trigger input; (10)3.0V-5.5V supply voltage.

Diagrams

MBI5031 block diagram