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PDF MBI5049 Data sheet ( Hoja de datos )
| Número de pieza | MBI5049 | |
| Descripción | 16-Channel SPWM Constant Current LED Sink Driver | |
| Fabricantes | Macroblock | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MBI5049 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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Macroblock
Preliminary Datasheet
MBI5049
16-Channel SPWM Constant Current LED Sink Driver
with Diagnosis and Power Saving
Features
3.3V/ 5V supply voltage
16 constant current output channels
Constant output current invariant to load voltage change
Small Outline Package
Constant output current range:
3-45mA@VDD=5V;
3-30mA@VDD=3.3V
Excellent output current accuracy:
- Between channels: ±1.5% (typ.) and ±3% (max.)
GF: SOP24L-300-1.00
- Between ICs: ±3% (typ.) and ±6% (max.)
Visual effect control
Shrink SOP
- Patented S-PWM technology to improve refresh rate
- 16-bit gray scale control
- 6-bit programmable output current gain from 12.5%~200%
Error detections
GP: SSOP24L-150-0.64
- Compulsory error detection: data-independent full panel and silent error detection in 700ns
- LED open-circuit detection
- Programmable leakage and short to ground diagnosis
- Programmable detection current
- Current setting resistor open-circuit detection
- Thermal protection: alert (>140°C) and shutdown (>160°C)
Flexible operation modes
- Auto synchronisation mode
- Manual synchronisation mode
EMI reduction
- 2 groups staggered delay of output, preventing from current surge
Maximum data clock frequency: 20MHz
Maximum gray scale clock frequency: 20MHz
0-power mode
Watchdog timer (WDT) operation
Product Description
MBI5049 is an enhanced 16-channel constant current LED sink driver with advanced error detection functions and
smart power-saving modes. MBI5049 features 0-power mode to reduce the consumed current by chip and increase
the power efficiency. Therefore, MBI5049 is especially suitable for LED traffic sign and message sign applications.
MBI5049 provides several kinds of error detections including LED open-circuit, leakage and over-temperature
protection(160°C). This chip integrates a 6-bit current gain which can adjust the output current from 12.5% to 200%.
October 2014, V1.00
-1-
1 page  
MBI5049
16-Channel Constant Current LED Sink Driver with
Error Detection and Power Saving
Maximum Ratings
Characteristic
Supply Voltage
Input Pin Voltage (SDI,LE, DCLK, GCLK)
Output Current
Sustaining Voltage at /OUT Port
GND Terminal Current
Power Dissipation
(On PCB*, Ta=25°C)
GF Type
GP Type
Symbol
VDD
VIN
IOUT
VDS
IGND
PD
Rating
0~7.0
-0.4~VDD+0.4
+50
-0.5~+17.0
+800
2.52
1.838
Unit
V
V
mA
V
mA
W
Thermal Resistance
(On PCB*, Ta=25°C)
GF Type
GP Type
Junction Temperature
Operating Ambient Temperature
Storage Temperature
ESD Rating
Rth(j-a)
Tj,max
Topr
Tstg
Human Body Mode
(MIL-STD-883G
Method 3015.7)
Machine Mode
(JEDEC
EIA/JESD22-A115,)
46.69
68
150**
-40~+85
-55~+150
HBM
MM
°C/W
°C
°C
°C
Class 3B
(8000V)
Class C
(≧400V)
*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
junction 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. Users should plan for
expected thermal dissipation performance by selecting package and arranging layout of the PCB to maximize the
capability.
- 5 - October 2014, V1.00
5 Page 
MBI5049
16-Channel Constant Current LED Sink Driver with
Error Detection and Power Saving
Test Circuit for Switching Characteristics
- 11 -
October 2014, V1.00
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MBI5049.PDF ] | |
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