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PDF MBI5155 Data sheet ( Hoja de datos )
| Número de pieza | MBI5155 | |
| Descripción | 16-Channel Low Knee Voltage PWM Constant Current LED Driver | |
| Fabricantes | Macroblock | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MBI5155 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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Macroblock
Preliminary Datasheet
MBI5155
16-Channel Low Knee Voltage PWM Constant Current LED Driver
for Low Voltage Power Supply, 1:32 Time-Multiplexing Applications
Features
3V-4.2V supply voltage
Design optimization
16 constant current output channels
Constant output current range:
- 0.5~10mA @ 4.2V supply voltage
- 0.5~5mA @ 3.3V supply voltage
Low knee voltage of output channels
VDS=0.3V @ IOUT = 10mA, VDD=4.2V
Excellent output current accuracy:
Between channels:：<±2.5％(Max.)
Between ICs: <±3％(Max.)
Built-in 16K-bit SRAM to support time-multiplexing for 1 ~ 32 scans
16-bit/14-bit /13-bit color depth PWM control to improve visual refresh rate
6bit current gain，12.5%~200%
LED failure isolation
-LED failure induced cross elimination
LED open detection
Integrating ghost elimination circuit
GCLK multiplier technology
Maximum DCLK frequency: 30MHz
Package MSL Level : 3
Macroblock, Inc. 2015
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 - April 2015, V1.00
1 page  
MBI5155
16-Channel Low Knee Voltage PWM Constant Current
LED Driver for Low Voltage Power Supply,
1:32 Time-multiplexing Applications
Equivalent Circuits of Inputs and Outputs
GCLK, DCLK, SDI terminal
VDD
LE Terminal
VDD
IN IN
SDO Terminal
VDD
OUT
- 5 - April 2015, V1.00
5 Page 
MBI5155
16-Channel Low Knee Voltage PWM Constant Current
LED Driver for Low Voltage Power Supply,
1:32 Time-multiplexing Applications
Test Circuit for Switching Characteristics
VIH = VDD
VIL = 0 V
Function
Generator
I DD
VDD
C1
VIH , V IL SDI
VDD
DCLK
LE
GCLK
R - EXT
GND
VDS
OUT 0
OUT15
SDO
I OUT
RL
CL
RL
CL
Rext
CSDO
VLED
C2
Figure 3
- 11 -
April 2015, V1.00
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MBI5155.PDF ] | |
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