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PDF MBI5043 Data sheet ( Hoja de datos )
| Número de pieza | MBI5043 | |
| Descripción | 16-Channel SPWM Constant Current LED Driver | |
| Fabricantes | Macroblock | |
| Logotipo |  |
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Macroblock
Preliminary Datasheet
MBI5043
16-Channel SPWM Constant Current LED Driver with
Lower Ghosting Effect Elimination
Features
16 constant-current output channels
16-bit color depth PWM control
Scrambled-PWM technology to improve refresh rate
6-bit programmable output current gain
Constant output current range:
1~ 45mA at 5.0V supply voltage
1~30mA at 3.3V supply voltage
1~30mA at 5/3.3V supply voltage (GM package)
Output current accuracy:
Between channels: <±2.5% (max.), and
Between ICs: <±3% (max.)
Integrated lower ghosting effect elimination
Staggered delay of output, preventing from current surge
Maximum data clock frequency: 30MHz
Maximum gray scale clock frequency: 33MHz
Refresh rate doubled by innovative rising/falling edge trigger GCLK
Schmitt trigger input
3.0V-5.5V supply voltage
Package MSL Level : 3
Shrink SOP
GP: SSOP24L-150-0.64
Thin Shrink SOP
GM: mSSOP24L-100-0.5
Product Description
MBI5043 is designed for LED video applications using internal Pulse Width Modulation (PWM) control with
selectable 16-bit color depth which features a 16-bit shift register which converts serial input data into each pixel
gray scale of output port. The output current can be preset through an external resistor. Moreover, the preset current
of MBI5043 can be further programmed to 64 gain steps for LED global brightness adjustment.
With Scrambled-PWM (S-PWM) technology, MBI5043 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. MBI5043 offloads the signal timing
generation of the host controller which just needs to feed data into drivers. MBI5043 drives the corresponding LEDs
to the brightness specified by image data. With MBI5043, 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. For time-multiplexing
LED displays, MBI5043 featured pre-charge to eliminate the lower-ghosting effect induced by parasitic capacitance
of the board.
Macroblock, Inc. 2015
May 2015, V1.01
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-
1 page  
MBI5043
16-Channel SPWM Constant Current LED Driver with
Lower Ghosting Effect Elimination
Maximum Rating
Characteristic
Symbol
Rating
Unit
Supply Voltage
VDD -0.5~+7
V
Input Pin Voltage (SDI, CLK, LE, GCLK)
VIN -0.4~VDD+0.4
V
Output Current
IOUT +45
mA
Sustaining Voltage at OUT Port
VDS -0.5~+17
V
GND Terminal Current
Power Dissipation
(On PCB, Ta=25°C)*
Thermal Resistance
(On PCB, Ta=25°C)*
Junction Temperature
Operating Temperature
GP Type
GM Type
GP Type
GM Type
IGND
PD
Rth(j-a)
Tj,max
Topr
+720
2.00
1.60
50.00
62.00
150**
-40~+85
mA
W
°C/W
°C
°C
Storage Temperature
Tstg -55~+150
°C
ESD Rating
Human Body Mode
(MIL-STD-883G Method 3015.7)
Machine Mode
(ANSI/ESD S5.2-2009)
HBM
MM
Class 3A
(7KV)
Class M4
(450V)
-
-
* The PCB size is 76.2mm*114.3mm in simulation. Please refer to JEDEC JESD51.
** Operation at the maximum rating for extended periods may reduce the device reliability; therefore, the suggested
operation temperature of the device is under 125°C.
Note: The performance of thermal dissipation is strongly related to the size of thermal pad, thickness and layer
numbers of the PCB. The empirical thermal resistance may be different from simulative value. User should plan for
expected thermal dissipation performance by selecting package and arranging layout of the PCB to maximize the
capability.
- 5 - May 2015, V1.01
5 Page 
MBI5043
16-Channel SPWM Constant Current LED Driver with
Lower Ghosting Effect Elimination
Principle of Operation
Control Command
Signals Combination
Number of DCLK
Command Name
LE Rising Edge when
Data Latch
High
LE is asserted
1
Global Latch
High
3
Read Configuration
High
5
Write Configuration
Enable Write Configuration
High
High
11
15
Description
The Action after a Falling Edge of LE
Serial data are transferred to the buffers
Buffer data are transferred to the
comparators
Move out “configuration register” to the
shift registers
Serial data are transferred to the
“configuration register”
To enable “Write Configuration”
Data Latch
DCLK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 N1 N2 N3
LE
SDI
MSB
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3
D2 D1 D0
Next Data
SDO
Previous Data
D15 D14 D13
Global Latch
DCLK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 N1 N2 N3
LE
SDI
MSB
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3
D2 D1 D0
Next Data
SDO
Previous Data
D15 D14 D13
Read Configuration
DCLK
LE
1
10 11
12 13 14 15 16
SDO
Previous Data
N1 N2 N3 N4
N5 N6 N7 N8
N9
FE D C B A 9 8 7
Write Configuration
DCLK 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 N1 N2 N3
LE
SDI
F E DC B A 9 8 7 6 5 4 3 2 1 0
Next Data
SDO
Previous Data
F ED
- 11 -
May 2015, V1.01
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet MBI5043.PDF ] | |
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