MY9868A
16-Channel Constant Current LED Driver With Double Latch Technology
General Description
New generation of conventional LED drive for better visual refresh rate and uniformity of low brightness,Higher LED utilization rate and grayscale level !!
The MY9868A, 16-channel constant current LED driver with double latch display technology, is suitable for any static and dynamic applications. The distinctive double latch technology enhances the visual refresh rate and low grayscale uniformity by increasing LED utilization rate. And the ghost image abatement is designed to eliminate ghosting of multiplexing LED modules due to parasitic capacitors.
The device operates over a 3.3V to 5V input voltage range (±10%) and provides 16 open-drain constant current sinking outputs that are rated to 15V and delivers up to 45mA of high accuracy current to each string of LED. The current at each output is programmable by means of an external current-sensing resistor.
The MY9868A’s on-board pass elements minimize the need for external components, while at the same time, providing ±3% channel current accuracy and ±4% chip current accuracy. Additional features include a ±0.1% regulated output current capability.
The MY9868A is available in a 24-pin SSOP/QFN package and specified over the -40°C to +85°C ambient temperature range.
Applications
- Indoor and Outdoor LED Video Displays
- Variable Message Sign (VMS)
- Dot Matrix Module
- Architectural and Decorative Lighting
- Industrial Lighting
- LCD Display back lighting
Typical Operating Circuits
Features
- 3.3V ~ 5.0V Operating supply voltage (±10%)
- 5~45mA/5V Constant current output range
- 5~30mA/3.3V Constant current output range
- 15V Rated output channels for long LED strings
- ±3.0% (max.) LED Current accuracy between channels
- ±4.0% (max.) LED Current accuracy between chips
- ±0.1% Output current regulation capability
- Double latch display technology (Patent approved)
- Current setting by one external resistor
- Ghost image abatement
- High HBM ESD protection (current output pins > 8000V)
- -40°C to +85°C Ambient temperature range
Order Information
| PART |
PACKAGE INFORMATION |
| MY9868A SS |
SSOP24-150mil-0.635mm |
2500 pcs/Reel |
| MY9868A QF |
QFN24-4mm x 4mm-0.5mm |
3000 pcs/Reel |
 |
|
|
|
|
|
Pin Configuration
