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PDF MBI5047 Data sheet ( Hoja de datos )
| Número de pieza | MBI5047 | |
| Descripción | 16-Channel Constant Current LED Sink Driver | |
| Fabricantes | Macroblock | |
| Logotipo |  |
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Macroblock
Preliminary Datasheet
MBI5047
Features
16-Channel Constant Current LED Sink Driver with
Full Diagnosis and Power Saving
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
- In-message error detection
GP: SSOP24L-150-0.64
- LED open-circuit detection
- Compulsory error detection: data-independent full panel and silent error detection in 700ns
- Programmable LED short-circuit detection
- LED open-circuit detection
- Programmable leakage and short to ground diagnosis
- 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
January 2014, V1.00
-1-
1 page  
MBI5047
16-Channel Constant Current LED Sink Driver with
Full Diagnosis and Power Saving
Equivalent Circuits of Inputs and Outputs
GCLK, DCLK, SDI terminal
VDD
LE terminal
VDD
IN IN
SDO terminal
VDD
OUT
- 5 - January 2014, V1.00
5 Page 
MBI5047
16-Channel Constant Current LED Sink Driver with
Full Diagnosis and Power Saving
Switching Characteristics (VDD= 3.3V)
Characteristics
Symbol Condition Min. Typ. Max. Unit
SDI - DCLK↑
tSU0
8 - - ns
Setup Time
LE↑- DCLK↑
tSU1
8 - - ns
LE↓- DCLK↑
tSU2
50 - - ns
DCLK↑- SDI
tH0
8 - - ns
Hold Time
DCLK↑- LE↓
tH1
8 - - ns
LE↓- GCLK↑
DCLK - SDO
tH2
tPD0
12 ns
- 30 40 ns
Propagation
Delay Time
GCLK - OUT2n*
LE -SDO
Staggered Delay
of Output
OUT2n 1***
Pulse Width
LE
DCLK
GCLK
tPD2**
tw(L)
tw(DCLK)
tw(GCLK)
VDD=3.3V
VIH=VDD
VIL=GND
Rext=680Ω
VDS=1V
RL=150Ω
CL=10pF
C1=100nF
C2=10μF
CSDO=10pF
VLED=4.0V
-
-
-
15
25
25
60 -
ns
40 50 ns
5 - ns
- - ns
- - ns
- - ns
Command to Command
tcc 50 - - ns
SDO Rise Time
tr,SDO
- 10
ns
SDO Fall Time
tf,SDO
- 10
ns
Output Rise Time of Output Ports
tOR
25 30 60 ns
Output Fall Time of Output Ports
In-message Error Detection Duration
(Count by GCLK)
tOF
1/FGCLK
25 30 60 ns
10 - - 1/FGCLK
Compulsory Error Detection Operation time**** tERR-C
700 -
- ns
Data Clock Frequency (Pure Digital)
FDCLK
- - 20 MHz
Gray Scale Clock Frequency (Pure Digital)
FGCLK
- - 20 MHz
*Output waveforms have good uniformity among channels
**In timing of “configuration read”, “in-message error detection read” and “compulsory error detection read”, the next
DCLK rising edge should be tPD2 after LE’s falling edge.
***Refer to the Timing Waveform, n=0, 1, 2, 3, 4, 5, 6, 7
****Users have to leave more time than the maximum error detection time for the error detection.
- 11 -
January 2014, V1.00
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MBI5047.PDF ] | |
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