900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf






Macroblock

MBI5353 Datasheet Preview

MBI5353 Datasheet

48-Channel PWM Constant Current LED Driver

No Preview Available !

Macroblock
Preliminary Datasheet
MBI5353
Features
48-Channel PWM Constant Current LED Driver
for 1:32 Time-Multiplexing Applications
3V-5.5V supply voltage
48 constant current output channels
Constant output current range:
- 0.5~20mA @ 5V supply voltage
- 0.5~10mA @ 3.3V supply voltage
Excellent output current accuracy:
Between channels:<±2.5(Max.)
Between ICs: <±3(Max.)
Built-in 48K-bit SRAM to support time-multiplexing for 1 ~ 32 scans
Flexible PWM control to improve visual refresh rate,
-16/15/14/13 bit grayscale mode with programmable scrambling
Global current gain control:
- Gain range: 100%~200%, step increment: 14.4%
128 steps R/G/B/ individual current gain control
Integrating ghost elimination circuit
Premium low grayscale improvement technique
LED failure isolation
- LED failure induced cross elimination
LED status monitoring:
- LED open detection with programmable threshold levels
- LED short detection with programmable threshold levels
Smart power saving mode
GCLK multiplier technology
Maximum DCLK frequency: 30MHz
Package MSL Level : 3
Product Description
MBI5353 is designed for LED video applications using internal Pulse Width Modulation (PWM) control with
selectable 16 /15 /14 / 13-bit color depth. MBI5353 features a 48-bit shift register which converts serial input data
into each pixel’s gray scale of the output port. The forty-eight 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. The innovative architecture with embedded SRAM is designed to support up to 1:32
time-multiplexing applications. Users only need to send the whole frame data once and to store in the embedded
SRAM of the LED driver, instead of sending every time when the scan line is changed. It helps to save the data
bandwidth and to achieve high grayscale with very low data clock rate. With scan-type Scrambled-PWM (S-PWM)
technology, MBI5353 enhances PWM by scrambling the “on” time of each scan line into several “on” periods and
sequentially drives each scan line for a short “on” period. The enhancement equivalently increases the visual refresh
rate of scan-type LED displays. In addition, the innovative GCLK multiplier technique doubles visual refresh rate.
Macroblock, Inc. 2017
Floor 6-4, No.18, Pu-Ting Rd., Hsinchu, Taiwan 30077, ROC.
TEL: +886-3-579-0068, FAX: +886-3-579-7534 E-mail: info@mblock.com.tw
- 1 - February 2017, V1.01




Macroblock

MBI5353 Datasheet Preview

MBI5353 Datasheet

48-Channel PWM Constant Current LED Driver

No Preview Available !

MBI5353
48-Channel PWM Constant Current LED Driver
for 1:32 Time-multiplexing Applications
MBI5353 drives the corresponding LEDs to the brightness specified by image data. With MBI5353, all output
channels can be built with 16-bit color depth (65,536 gray scales). When building a 16-bit color depth video, S-PWM
technology reduces the flickers and improves the image fidelity.
Through compulsory error detection, MBI5353 detects individual LED for open-circuit errors without extra
components. MBI5353 equips an innovative cross elimination function, and it solves the cross phenomenon induced
by failure LEDs. Besides, integrated ghost elimination circuit eases the ghost problems. To further reduce power
consumption of LED display, a built-in smart power saving mode will shut driver IC down when grayscale data is
zero.
- 2 - February 2017, V1.01


Part Number MBI5353
Description 48-Channel PWM Constant Current LED Driver
Maker Macroblock
Total Page 30 Pages
PDF Download

MBI5353 Datasheet PDF

View PDF for Mobile








Similar Datasheet

1 MBI5353 48-Channel PWM Constant Current LED Driver
Macroblock





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy