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MBI5030GF fiches techniques PDF

Macroblock - 16-Channel Constant Current LED Driver

Numéro de référence MBI5030GF
Description 16-Channel Constant Current LED Driver
Fabricant Macroblock 
Logo Macroblock 





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MBI5030GF fiche technique
Macroblock
Features
Datasheet
MBI5030
16-Channel Constant Current LED Driver
With 16-bit PWM Control
z Backward compatible with MBI5026 in package
z 16 constant-current output channels
z 16-bit/12-bit color depth PWM control
z Scrambled-PWM technology to improve refresh rate
z Compulsory open circuit detection to detect individual LED errors
Full panel, data independent
Silent error detection with 0.1mA
z 8-bit programmable output current gain
z Over temperature warning/protection
z Constant output current range: 3~90mA
8~ 90mA at 5.0V supply voltage
3~70mA at 3.3V supply voltage
z Output current accuracy:
Between channels: <±1.5% (typ.), and
Between ICs: <±3% (typ.)
z Staggered delay of output, preventing from current surge
z Maximum data clock frequency: 30MHz
z Schmitt trigger input
z 3.0V-5.5V supply voltage
Small Outline Package
GF: SOP24L-300-1.00
Thin Shrink SOP
GTS: TSSOP24L-173-0.65
Quad Flat No-Lead
GFN: QFN24L-4*4-0.5
Product Description
MBI5030 is designed for LED video applications using internal Pulse Width Modulation (PWM) control with
selectable 16-bit or 12-bit color depth. MBI5030 features a 16-bit shift register which converts serial input data into
each pixel gray scale of output port. At MBI5030 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 MBI5030 can be further programmed to 256 gain
steps for LED global brightness adjustment.
With Scrambled-PWM (S-PWM) technology, MBI5030 enhances Pulse Width Modulation by scrambling the “on”
time into several “on” periods. The enhancement equivalently increases the visual refresh rate. When building a
16-bit color depth video, S-PWM reduces the flickers and improves the fidelity. MBI5030 offloads the signal timing
generation of the host controller which just needs to feed data into drivers. MBI5030 drives the corresponding LEDs
to the brightness specified by image data. With MBI5030, all output channels can be built with 16-bit color depth
(65,536 gray scales). Each LED’s brightness can be calibrated enough from minimum to maximum brightness with
compensated gamma correction or LED deviation information inside the 16-bit image data.
©Macroblock, Inc. 2011
Floor 6-4, No.18, Pu-Ting Rd., Hsinchu, Taiwan 30077, ROC.
TEL: +886-3-579-0068, FAX: +886-3-579-7534 E-mail: [email protected]
- 1 - November 2011, VA.01

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