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PDF MBI5031 Data sheet ( Hoja de datos )
| Número de pieza | MBI5031 | |
| Descripción | 16-Channel Constant Current LED Driver | |
| Fabricantes | Macroblock | |
| Logotipo |  |
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Macroblock
Features
Datasheet
MBI5031
16-Channel Constant Current LED Driver
With 12-Bit PWM Control
Backward compatible with MBI5026 in package
16 constant-current output channels
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
8~90mA at 5.0V supply voltage
3~70mA at 3.3V 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
GGFF:: SSOOPP2244LL--233300600--11..0000
Thin Shrink SOP
GTS: TSSOP24L-173-0.65
Quad Flat No-Lead
GFN: QFN24L-4*4-0.5
Product Description
MBI5031 is designed for LED video applications using internal Pulse Width Modulation (PWM) control with 12-bit
color depth. MBI5031 features a 16-bit shift register which converts serial input data into each pixel 12bits 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 to 256 gain steps for LED
global brightness adjustment.
With Scrambled-PWM (S-PWM) technology, MBI5031 enhances Pulse Width Modulation by scrambling the “on”
time into several “on” periods. The enhancement equivalently increases the visual refresh rate. When building a
12-bit color depth video, S-PWM reduces the flickers and improves the fidelity. MBI5031 offloads the signal timing
generation of the host controller which just needs to feed data into drivers. MBI5031 drives the corresponding LEDs
to the brightness specified by image data. With MBI5031, all output channels can be built with 12-bit color depth
(4,096 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 12-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
1 page  
MBI5031
16-Channel Constant Current LED Driver
With 12-Bit PWM Control
Electrical Characteristics (VDD=5.0V, Ta=25°C)
Characteristics
Symbol
Condition
Min. Typ. Max. Unit
Supply Voltage
Sustaining Voltage at OUT
Ports
Output Current
VDD
VDS
IOUT
IOH
-
OUT0 ~ OUT15
Refer to “Test Circuit for
Electrical Characteristics”
SDO
4.5 5.0 5.5
V
- - 17.0 V
8 - 90 mA
- - -1.0 mA
IOL SDO
- - 1.0 mA
Input Voltage
“H” level
“L” level
VIH
VIL
Ta=-40~85ºC
Tae=-40~85ºC
0.7xVDD
-
VDD V
GND
- 0.3xVDD V
Output Leakage Current
IOH
VDS=17.0V
- - 0.5 μA
Output Voltage SDO
Current Skew (Channel)
Current Skew (IC)
Output Current vs.
Output Voltage Regulation
Output Current vs.
Supply Voltage Regulation
LED Error Detection
Threshold
Pull-down Resistor
VOL
VOH
dIOUT
dIOUT
dIOUT2
dIOUT2
%/dVDS
%/dVDD
IOL=+1.0mA
IOH=-1.0mA
IOUT=25.7mA
VDS=1.0V
Rext=560Ω
IOUT=64.5mA
VDS=1.0V
Rext=220Ω
IOUT=25.7mA
VDS=1.0V
Rext=560Ω
IOUT=64.5mA
VDS=1.0V
Rext=220Ω
VDS within 1.0V and 3.0V,
Rext=700Ω@21mA
VDD within 4.5V and 5.5V
VDS,TH
-
RIN(down) LE
-
VDD -0.4
-
-
-
±1.5
- ±1.5
- ±3.0
- ±3.0
- ±0.1
- ±1.0
- 0.30
250 450
0.4
-
±3.0
±3.0
±6.0
±6.0
±0.3
±2.0
0.35
800
V
V
%
%
%
%
%/V
%/V
V
KΩ
IDD(off) 1 Rext=Open, OUT0 ~ OUT15 =Off - 3.0 6.0
Supply
Current
“Off”
“On”
IDD(off) 2
IDD(off) 3
IDD(on) 1
IDD(on) 2
Rext=700Ω,
Rext=230Ω,
Rext=700Ω,
Rext=230Ω,
OUT0 ~ OUT15 =Off
OUT0 ~ OUT15 =Off
OUT0 ~ OUT15 =On
OUT0 ~ OUT15 =On
- 7.0 10.0
- 9.0 12.0 mA
- 8.0 11.0
- 10.0 13.0
Thermal Flag Temperature TTF
Junction Temperature
135 150 165
°C
*One channel on.
- 5 - July 2013, VA.02
5 Page 
MBI5031
Read Error Status
16-Channel Constant Current LED Driver
With 12-Bit PWM Control
DCLK
1 8 9 10 11 12 13 14 15 16
N1 N2 N3 N4
N5 N6
N7
LE
SDO
Previous Data
FE D C B A 9
Setting Gray Scales of Pixels
MBI5031 implements the gray level of each output port using the S-PWM control algorithm. With the 12-bit data, all
output channels can be built with 4,096 gray scales.
There are two methods to issue the “global latch” command.
1. When configuration bit “F” is set to “0” (Default), the 16-bit input shift register latches 15 times of the gray scale
data into each data buffer with a “data latch” command sequentially. With a “global latch” command for the 16th gray
scale data, the 256-bit data buffers will be clocked in with the MSB first, loading the data from port 15 to port 0.
2. When configuration bit “F” is set to “1”, the 16-bit input shift register latches 16 times of the gray scale data into
each data buffer with a “data latch” command sequentially. With a “global latch” command for additional latch, the
256-bit data buffers will be clocked in with the MSB first, loading the data from port 15 to port 0.
Full Timing for Data Loading
When bit “F” = “0”
Port 15
Port 14
Port 1
Port 0
DCLK
LE
SDI
SDO
00 01 02
0E 0F 10 11 12
1E 1F 20 21 22
EE EF F0 F1 F2 FD FE FF 00 01 02
D0F D0E D0D D01 D00 D1F D1E D1D
Previous Data
Previous Data D0F D0E D0D
D11 D10 D2F D2E D2D
D01 D00 D1F D1E D1D
D21 D20 DFF DFE DFD DF2 DF1 DF0 D0F D0E D0D
DD1 DD0 DEF DEE DED DE2 DE1 DE0 DFF DFE DFD
Data
latch
Data
latch
Data
latch
When bit “F” = “1”
Global
latch
Figure 4
- 11 -
July 2013, VA.02
11 Page | ||
| Páginas | Total 26 Páginas | |
| PDF Descargar | [ Datasheet MBI5031.PDF ] | |
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