Atmel LED Drivers MSL4163/MSL4164
Part | Datasheet |
---|---|
![]() |
MSL4164BT-R (pdf) |
Related Parts | Information |
---|---|
![]() |
MSL4164BT |
PDF Datasheet Preview |
---|
Atmel LED Drivers MSL4163/MSL4164 16-string, White and RGB LED Drivers with Adaptive Power Control, EEPROM, and Serial Interface Datasheet Brief Atmel LED Drivers-MSL4163/MSL4164 16-string, White and RGB LED Drivers with Adaptive Power Control, EEPROM, and Serial Interface The LED DriversMSL4163 and MSL4164 compact, high-power LED string drivers use internal current control MOSFETs to sink up to 100mA per string, with current accuracy and matching better than The MSL4163/4 drive 16 parallel strings of 10 white LEDs each, for a total of 160 white LEDs per device. Sixteen interconnected devices control up to 2560 white LEDs. The MSL4164 features a 20MHz SPI bus, and the MSL4163 offers a 1MHz I2C serial interface. Both interfaces support video frame-by-frame LED string intensity control for up to 16 interconnected devices to allow active area dimming. The devices include an advanced PWM engine that easily synchronizes to a video signal, and per-string phase adjustment to reduce unwanted LCD artifacts such as motion blur. Additionally, an on-chip EEPROM allows the power-up defaults to be customized through the serial interface. The MSL4163/4 adaptively control the DC-DC converters that power the LED strings, using Atmel's Adaptive SourcePower technology. These efficiency optimizers minimize power use, while maintaining LED current accuracy. A unique combination of peak current controls and pulse width management offer simple, full- screen brightness control, versatile area dimming, and a consistent white point. One external resistor sets the global peak reference current for all LED strings, and global peak current fine-tuning is available through an 8-bit register. Global string drive pulse width is adjusted with an 8-bit global intensity register, and individual string pulse width is modulated with 12-bit registers. The MSL4163/4 feature fault monitoring of open circuit, short circuit, loss of video sync, and over-temperature conditions, and provide a fault output to notify the system controller. Detailed fault status and control are available through the serial interface. The MSL4163/4 are offered in 6 x 6 x 0.75mm, 40-pin TQFN packages and operate over a -40°C to 85°C temperature range. Long Life, Efficient LED Backlighting for • Televisions and Desktop Monitors • Medical and Industrial Instrumentation • Automotive Audio-visual Displays Channel Signs Architectural Lighting Ordering Information PART MSL4163BT MSL4164BT 16-CHANNEL LED STRING DRIVERS INTERFACE I2C SPI PACKAGE 40-pin, 6 x 6 x 0.75mm TQFN 40-pin, 6 x 6 x 0.75mm TQFN Atmel LED Drivers-MSL4163/MSL4164 Atmel LED Drivers-MSL4163/MSL4164 16-string, White and RGB LED Drivers with Adaptive Power Control, EEPROM, and Serial Interface Key Features • 12-bit PWM String Dimming Operates at 240Hz • Fast Serial Interfaces Support up to 16 Devices per Bus: - MSL4164 20MHz SPI - MSL4163 1MHz I2C • 8-bit Adaptive Power Correction Maximizes Efficiency of up to Three String Power Supplies • Drives 16 Parallel LED Strings of 10 White LEDs Each, for up to 2560 White LEDs per Serial Bus • Supports Adaptive, Real-time Area Dimming for Highest Dynamic Range LCD TVs and Monitors • Programmable String Phase Reduces Motion Blur • Global Intensity Control via Serial Interface • 100mA Peak, 60mA Average LED String Current • Single Resistor Sets Peak Current for all LED Strings • ±3% Current Accuracy and Current Balance • Video Frame Vsync and Line Hsync Sync Inputs • Sync Loss Detectors Optionally Disable LED Strings • Multiple MSL4163/4s Share String Power Supplies and Automatically Negotiate the Optimum Supply Voltage • EEPROM Allows Customized Power-on Defaults • Less than 1µa LED String-off Leakage Current • String Open Circuit and LED Short Circuit Detection with Adjustable Short Circuit Threshold • Individual Fault Detection Enable for Each String • Over-temperature Shutoff Protection • -40°C To +85°C Operating Temperature Range • 4kv HBM ESD Rated String Drive Outputs Application Circuit DC/DC PWM VOUT CONTROLLER ANY NON-ISOLATED TOPOLOGY FB VLED COUT 10 WHITE LEDs PER STRING 1N4148 5V 10µF 4.7µF 12.7k FBO1 STR0 STR15 MSL4163/4 W / RGB LED DRIVER GSC ILED SERIAL INTERFACE 16 STRINGS PER DEVICE SYNC SIGNALS FROM VIDEO SUBSYSTEM OPTIONAL MSL4163/4 MSL4163/4 2 OR 4 WIRE |
More datasheets: DMN63D8LDWQ-7 | M39137 SL002 | M39137 SL001 | M39137 SL005 | AT45D011-JI | AT45D011-SC | AT45D011-JC | AT45D011-XC | AT45D011-SI | AT45D011-XI |
Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived MSL4164BT-R Datasheet file may be downloaded here without warranties.