MSL4164BT

MSL4164BT Datasheet

Atmel LED Drivers MSL4163/MSL4164

Part	Datasheet
MSL4164BT	MSL4164BT (pdf)

Related Parts	Information
MSL4164BT-R	MSL4164BT-R

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

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

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Datasheet ID: MSL4164BT 519349