M08890
3-channel 2A LED/Laser Driver for Panel Based Projectors
The M08898 is a high efficiency integrated LED/laser driver for LCD/LCoS/TI DLP® projection displays. Each of the four channels may drive up to 2 A. Color mixing is register selectable and the correct LED drive current is automatically loaded and the DC-DC converter can be programmed to always adjust its output for the LED with the highest forward voltage. A single DC-DC converter can be used to supply all 3 outputs or as many as 3 external DC-DC converters can be controlled to generate the optimal LED bias voltages. Safety Circuitry features include over-temperature and over-voltage monitoring. The M08898 features also fully programmable PWM current generator. The part is programmed via I2C and a standalone EEPROM port allows automatic loading of internal registers with minimal microcontroller overhead. Note: DLP is a registered trademark of Texas Instruments
Product Specifications
- Part Number
- M08890
- Description
- 3-channel 2A LED/Laser Driver for Panel Based Projectors
- Current per Channel
- 2A
- Maximum Current
- 6A
- Number of Channels
- 3
- Programmable Internal PWM Generator
- Yes
- Integrated PMIC
- No
- Automatic Power Control
- No
- Electronic Laser Despeckle
- No
Features
- Three 2 A common anode LED/laser drivers
- External EEPROM port
- High speed I2C interface
- Integrated programmable PWM current generator
- Automatic Safety Circuitry—Over Voltage, Over Temperature, LED open circuit detect
- Control circuitry for up to 4 different external DC-DC Converters to optimize efficiency
- Integrated 12.5 Msps 10-bit current DACs with 6-bit programmable full scale for output current setting
- Programmable Color Mixing allows all LEDs to be on simultaneously
Applications
- LCD/LCoS/DLP portable and pico projectors
- High current laser/LED systems
- Multicolor LED/laser displays
- Head-up and Head mounted displays