Macroblock
Features
Datasheet
MBI5030
16-Channel Constant Current LED Driver With 16-bit PWM Control
Backward compatible with MBI5026 in package 16 constant-current output channels 16-bit/12-bit color depth PWM control Scrambled-PWM technology to improve refresh rate Compulsory open circuit detection to detect individual LED errors
Full panel, data independent Silent error detection with 0.1mA 8-bit programmable output current gain Over temperature warning/protection Constant output current range: 3~90mA 3~70mA at 3.3V supply voltage 8~ 90mA at 5.0V supply voltage Output current accuracy: Between channels: <±1.5% (typ.), and Between ICs: <±3% (typ.) Staggered delay of output, preventing from current surge Maximum data clock frequency: 30MHz Schmitt trigger input 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. 2013 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 - July 2013, VA.02
MBI5030
Block Diagram
16-Channel Constant Current LED Driver With 16-Bit PWM Control
R-EXT
IO Regulator and DAC
VDD
GCLK
16 bit/12-bit Counter
SYNC Control
LE
GND
SDI DCLK
Gray Scale Pixel
Gray Scale Pixel
Configuration Register
OUT0 OUT 1
OUT14 OUT15
16-bit error status Comparators Comparators
Comparators Comparators
16 16
16 16
Gray Scale Pixel Gray Scale Pixel
Buffers
16 16
16-bit Shift Register (FIFO)
16
SDO
Figure 1
- 2 - July 2013, VA.02
MBI5030
Pin Configuration
16-Channel Constant Current LED Driver With 16-Bit PWM Control
GND SDI
DCLK LE
OUT0
OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 OUT7
1 2 3 4 5 6 7 8 9 10 11 12
24 VDD 23 R-EXT 22 SDO 21 GCLK 20 OUT15 19 OUT14 18 OUT13 17 OUT12 16 OUT11 15 OUT10 14 OUT9
13 OUT8
MBI5030GF/GTS
LE OUT0 OUT1 OUT2 OUT3 OUT4
24 23 22 21 20 19 1 18 2 17 3 16 4 15 5 14 6 13
7 8 9 10 11 12
OUT15 OUT14
OUT13 OUT12 OUT11 OUT10
MBI5030GFN
Terminal Description
Pin Name GND SDI
DCLK
LE
Function Ground terminal for control logic and current sink
Serial-data input to the shift register
Clock input terminal used to shift data on rising edge and carries command information when LE is asserted.
Data strobe terminal and controlling command with DCLK
OUT0 ~ OUT15
GCLK
SDO R-EXT VDD
Constant current output terminals
Gray scale clock terminal Clock input for gray scale. The gray scale display is counted by gray scale clock comparing with input data.
Serial-data output to the receiver-end SDI of next driver IC
Input terminal used to connect an external resistor for setting up output current for all output channels
3.3V/5V supply voltage terminal
- 3 - July 2013, VA.02
MBI5030
16-Channel Constant Current LED Driver
With 16-Bit PWM Control
Equivalent Circuits of Inputs and Outputs
GCLK, DCLK, SDI terminal
VDD
LE terminal
VDD
IN IN
SDO terminal
VDD
OUT
Maximum Rating
Characteristic
Symbol
Rating
Unit
Supply Voltage
VDD
7
V
Input Pin Voltage (SDI)
VIN -0.4~VDD+0.4
V
Output Current
IOUT +100
mA
Sustaining Voltage at OUT Port
VDS 17
V
GND Terminal Current
Power Dissipation (On PCB, Ta=25°C)*
Thermal Resistance (On PCB, Ta=25°C)*
GF Type GTS Type GFN Type GF Type GTS Type GFN Type
Junction Temperature
Operating Ambient Temperature
IGND PD
Rth(j-a) Tj,max Topr
+1600
2.39 3.87 3.49 52.37 32.34 35.85
150**
-40~+85
mA W
°C/W °C °C
Storage Temperature
ESD Rating
Human Body Mode (MIL-STD-883G Method 3015.7)
Machine Mode (JEDEC EIA/JESD22-A115)
Tstg HBM MM
-55~+150
Class.