MSL2042GU-R

MSL2042GU-R Datasheet

Atmel LED Drivers MSL2041/MSL2042

Part	Datasheet
MSL2042GU-R	MSL2042GU-R (pdf)

Related Parts	Information
MSL2041GU-R	MSL2041GU-R
MSL2042GU	MSL2042GU
MSL2041GU	MSL2041GU

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Atmel LED Drivers MSL2041/MSL2042 Low-cost, Simple 4-string LED Drivers with External Current Sink MOSFETs, 5000:1 Dimming Range and Per String PWM Input Datasheet Brief Atmel LED Drivers-MSL2041/MSL2042 Low-cost, Simple 4-string LED Drivers with External Current Sink MOSFETs, 5000:1 Dimming Range and Per String PWM Input The LED DriversMSL2041 and MSL2042 compact, high-power LED string controllers use external current control MOSFETs to sink up to 1A per string, with string current matching of The MSL2041/2 drive four parallel strings of LEDs and offer fault detection and management of open circuit and short circuit LEDs. The MSL2041 features four PWM inputs that allow independent frequency, dimming and phasing of each string, while the MSL2042 offers one PWM input for frequency and dimming control of all four strings, and automatically phase shifts the string drive signals. Peak string currents are set using current sense FET source resistors and adjustable with an internal 8-bit DAC. The MSL2041/2 adaptively control up to two 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. Multiple MSL2041/2s cascade to automatically negotiate the optimum power supply voltage when driving more than four strings from a single power supply. The MSL2041/2 features fault control for open-circuit strings, LED shortcircuits and device over-temperature conditions. When a string open-circuit or LED short-circuit condition is detected, the MSL2041/2 turn off the faulty string and pull the open-drain fault output low. The MSL2041/2 feature stand-alone operation, and the basic circuit requires just one to four external PWM dimming inputs. An I2C serial interface is provided to allow optional control and monitoring of the various fault detection and Adaptive SourcePower parameters, but is not required for operation. The MSL2041/2 are offered in the 32-pin, 300mil SOP package, and operate over the -40°C to +85°C temperature range. • LCD-TVs • PC Monitors • Industrial Displays • General Illumination • Street-lighting • Post-regulated or Offline Powered LED Strings Ordering Information PWM INPUTS MSL2041GU MSL2042GU AUTO-PHASE DELAY NO YES PACKAGE 32 pin, 300mil SOP 32 pin, 300mil SOP Atmel LED Drivers-MSL2041/2042 Atmel LED Drivers-MSL2041/MSL2042 Low-cost, Simple 4-string LED Drivers with External Current Sink MOSFETs, 5000:1 Dimming Range and Per String PWM Input Key Features • Drives Four Parallel High Power LED Strings • Up to 1A LED String Current with External N-channel MOSFETS • Operates Stand-alone, Basic Circuit Needs Only PWM Input s • Four PWM Inputs Allow Individual Frequency, Brightness and Phase Control of each LED String MSL2041 • One PWM Input Controls the Frequency and Brightness of the Automatically Phase Shifted Strings MSL2042 • 8-bit Adaptive SourcePower Correction Optimizes String Power Supply for Maximum Efficiency Application Circuit • Multiple MSL2041/2s Share a String Supply and Automatically Negotiate the Optimum Supply Voltage • Current Matching Between Strings • String Open-circuit and LED Short-Circuit Fault Detection and Protection • External MOSFETs Offer Flexibility of LEDs Used in Each String • I2C Serial Interface Allows Optional Control of Device Functions and Faults • 32-pin 300mil SOP Package • -40°C To +85°C Operating Temperature Range • Lead-Free, Halogen-free, RoHS Compliant Package Atmel LED Drivers-MSL2041/2042 Package and Pinout SOP • FBO1 1 EN 2 PWM3 3 PWM2 4 PWM1 5 PWM0 6 FLTB 7 SCL 8 SDA 9 D0 10 G0 11 S0 12 D1 13 G1 14 S1 15 NC 16 MSL2041 TOP VIEW 32 FBI1 31 FBO2 30 FBI2 29 GND 28 VIN 27 VCC 26 CVDD 25 VDD 24 NC 23 D3 22 G3 21 S3 20 S2 19 G2 18 D2 17 NC • FBO1 1 EN 2 CGND 3 CGND 4 CGND 5 PWM0 6 FLTB 7 SCL 8 SDA 9 D0 10 G0 11 S0 12 D1 13 G1 14 S1 15 NC 16 MSL2042 TOP VIEW 32 FBI1 31 FBO2 30 FBI2 29 GND 28 VIN 27 VCC 26 CVDD 25 VDD 24 NC 23 D3 22 G3 21 S3 20 S2 19 G2 18 D2 17 NC Package Dimensions 32 Pin 20.52mm x 7.49mm x 2.49mm SOP 1.27mm pin pitch Atmel LED Drivers-MSL2041/2042 Atmel LED Drivers-MSL2041/MSL2042 Low-cost, Simple 4-string LED Drivers with External Current Sink MOSFETs, 5000:1 Dimming Range and Per String PWM Input Pin Descriptions

PDF Datasheet Preview

Atmel LED Drivers MSL2041/MSL2042

Low-cost, Simple 4-string LED Drivers with External Current Sink MOSFETs, 5000:1 Dimming Range and Per String PWM Input

Datasheet Brief

Atmel LED Drivers-MSL2041/MSL2042

Low-cost, Simple 4-string LED Drivers with External Current Sink MOSFETs, 5000:1 Dimming Range and Per String PWM Input

The LED DriversMSL2041 and MSL2042 compact, high-power LED string controllers use external current control MOSFETs to sink up to 1A per string, with string current matching of The MSL2041/2 drive four parallel strings of LEDs and offer fault detection and management of open circuit and short circuit LEDs. The MSL2041 features four PWM inputs that allow independent frequency, dimming and phasing of each string, while the MSL2042 offers one PWM input for frequency and dimming control of all four strings, and automatically phase shifts the string drive signals. Peak string currents are set using current sense FET source resistors and adjustable with an internal 8-bit DAC.

The MSL2041/2 adaptively control up to two 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. Multiple MSL2041/2s cascade to automatically negotiate the optimum power supply voltage when driving more than four strings from a single power supply.

The MSL2041/2 features fault control for open-circuit strings, LED shortcircuits and device over-temperature conditions. When a string open-circuit or LED short-circuit condition is detected, the MSL2041/2 turn off the faulty string and pull the open-drain fault output low.

The MSL2041/2 feature stand-alone operation, and the basic circuit requires just one to four external PWM dimming inputs. An I2C serial interface is provided to allow optional control and monitoring of the various fault detection and Adaptive SourcePower parameters, but is not required for operation.

The MSL2041/2 are offered in the 32-pin, 300mil SOP package, and operate over the -40°C to +85°C temperature range.
• LCD-TVs
• PC Monitors
• Industrial Displays
• General Illumination
• Street-lighting
• Post-regulated or Offline Powered LED Strings
Ordering Information

PWM INPUTS

MSL2041GU

MSL2042GU

AUTO-PHASE DELAY NO YES

PACKAGE
32 pin, 300mil SOP 32 pin, 300mil SOP

Atmel LED Drivers-MSL2041/2042

Atmel LED Drivers-MSL2041/MSL2042

Low-cost, Simple 4-string LED Drivers with External Current Sink MOSFETs, 5000:1 Dimming Range and Per String PWM Input

Key Features
• Drives Four Parallel High Power LED Strings
• Up to 1A LED String Current with External

N-channel MOSFETS
• Operates Stand-alone, Basic Circuit Needs Only

PWM Input s
• Four PWM Inputs Allow Individual Frequency,

Brightness and Phase Control of each LED String MSL2041
• One PWM Input Controls the Frequency and Brightness of the Automatically Phase Shifted Strings MSL2042
• 8-bit Adaptive SourcePower Correction Optimizes String Power Supply for Maximum Efficiency

Application Circuit
• Multiple MSL2041/2s Share a String Supply and Automatically Negotiate the Optimum Supply Voltage
• Current Matching Between Strings
• String Open-circuit and LED Short-Circuit Fault Detection and Protection
• External MOSFETs Offer Flexibility of LEDs Used in Each String
• I2C Serial Interface Allows Optional Control of Device Functions and Faults
• 32-pin 300mil SOP Package
• -40°C To +85°C Operating Temperature Range
• Lead-Free, Halogen-free, RoHS Compliant Package

Atmel LED Drivers-MSL2041/2042

Package and Pinout SOP
• FBO1 1

EN 2 PWM3 3 PWM2 4 PWM1 5 PWM0 6

FLTB 7 SCL 8 SDA 9 D0 10 G0 11 S0 12 D1 13 G1 14 S1 15 NC 16

MSL2041 TOP VIEW
32 FBI1 31 FBO2 30 FBI2 29 GND 28 VIN 27 VCC 26 CVDD 25 VDD 24 NC 23 D3 22 G3 21 S3 20 S2 19 G2 18 D2 17 NC
• FBO1 1

EN 2 CGND 3 CGND 4 CGND 5 PWM0 6

FLTB 7 SCL 8 SDA 9 D0 10 G0 11 S0 12 D1 13 G1 14 S1 15 NC 16

MSL2042 TOP VIEW
32 FBI1 31 FBO2 30 FBI2 29 GND 28 VIN 27 VCC 26 CVDD 25 VDD 24 NC 23 D3 22 G3 21 S3 20 S2 19 G2 18 D2 17 NC

Package Dimensions 32 Pin 20.52mm x 7.49mm x 2.49mm SOP 1.27mm pin pitch

Atmel LED Drivers-MSL2041/2042

Atmel LED Drivers-MSL2041/MSL2042

Low-cost, Simple 4-string LED Drivers with External Current Sink MOSFETs, 5000:1 Dimming Range and Per String PWM Input

Pin Descriptions

More datasheets: BXRA-40E0810-A-00 | BXRA-27E0540-A-00 | ADM698SQ | ADM699SQ | 1645 | 301-9019-01 | CY3093 | CY3098 | CY3097 | CY3670

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Datasheet ID: MSL2042GU-R 519348