MSLB9082FGC Atmel, MSLB9082FGC Datasheet

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MSLB9082FGC

Manufacturer Part Number
MSLB9082FGC
Description
LED Lighting Drivers Compact 8-Channel LED Driver
Manufacturer
Atmel
Datasheet

Specifications of MSLB9082FGC

Rohs
yes
Input Voltage
10 V to 16 V
Maximum Supply Current
160 mA
Mounting Style
SMD/SMT
Power Dissipation
20 W
Factory Pack Quantity
1
Atmel LED Driver-MSLB9082
LED Backlight Driver Module
Compact, 8-channel, 20W LED Driver Board with I
C Interface
2
Datasheet

Related parts for MSLB9082FGC

MSLB9082FGC Summary of contents

Page 1

... Atmel LED Driver-MSLB9082 LED Backlight Driver Module Compact, 8-channel, 20W LED Driver Board with I Datasheet C Interface 2 ...

Page 2

... General Description The Atmel compact, ® 8-channel LED driver board is a complete LED backlight driver solution using the Atmel LED Driver-MSL3162 for medium-sized LCD panels. Each channel drives series-connected LEDs 160mA per channel. The driver board is configured to operate from 16V input voltage ...

Page 3

... Small Size, 1.0” X 2.0” • Four Available I²C Slave Addresses, Switch Selectable LED Driver Board Atmel LED Driver-MSLB9082 Atmel LED Driver-MSLB9082 LED Backlight Driver Module Compact, 8-channel, 20W LED Driver Board with I • Four Full-scale Current Settings, Switch Selectable • ...

Page 4

... Mechanical Drawing Figure 1. Atmel LED Driver-MSLB9082 Mechanical Drawing. All Dimensions in Inches. Connector Pin Descriptions Table 1. J2 Input Connector Pin Descriptions PIN NAME PIN NUMBER PWR 1,2 Input power to integrated boost regulator circuit connection connection connection SDA 6 I²C serial data ...

Page 5

... PWM, SDA, SCL input high voltage PWM, SDA, SCL input low voltage FLTB output low voltage FLTB leakage current STR1-STR8 output current Atmel LED Driver-MSLB9082 Atmel LED Driver-MSLB9082 LED Backlight Driver Module Compact, 8-channel, 20W LED Driver Board with I PIN DESCRIPTION = .................................................................................... -40° ...

Page 6

... I C timeout disabled (Note 1) 2 0.5 0.26 0.26 0.26 10 (Note 2) 0.05 (Note 3) 0.05 100 0.5 0.26 (note 4,5) (Note 6) TYP MAX UNIT 20 kHz TYP MAX UNIT 1000 kHz 25 ms µs µs µs µs ns 0.45 µs 0.45 µs ns µs µs 120 ns 120 the SCL signal) in order to IL Atmel LED Driver-MSLB9082 ...

Page 7

... Typical Performance Characteristics String Phasing Atmel LED Driver-MSLB9082 Atmel LED Driver-MSLB9082 LED Backlight Driver Module Compact, 8-channel, 20W LED Driver Board with I Efficiency Optimizer Initial Calibration C Interface 2 7 ...

Page 8

... MSLB9082 LED driver module, and switch S2 selects one of those resistors to set the full-scale, per-string LED current to 50, 60, 70, or 80mA. Table 4 shows the switch settings and the full-scale, per-string LED current for each setting. Table 4: Full-scale, Per-string LED Current (S2) Settings 8 Atmel LED Driver-MSLB9082 ...

Page 9

... STR_FULL 64 where I is the current of LED string n, I SRTn current setting register for string n between 0 and 64 (0x3F). Atmel LED Driver-MSLB9082 Atmel LED Driver-MSLB9082 LED Backlight Driver Module Compact, 8-channel, 20W LED Driver Board with I FULL-SCALE LED CURRENT SWITCH S2 POSITION 50mA Position 3 ...

Page 10

... C/SMBus serial interface for digital LED control and fault detection. Four slave ID C address selection switch. The addresses are shown in table 5. 2 ADDRESS SWITCH S1 POSITION 0xA0 Position 3 0xA6 Position 4 C serial interface. Table 5 shows the registers for the MSL3162 LED driver. 2 I²C SLAVE ADDRESS 0xA4 0xA2 Atmel LED Driver-MSLB9082 ...

Page 11

... Table 6. Atmel LED Driver-MSL3162 Register Map ADD- DEFAULT REGISTER FUNCTION RESS VALUES CONTROL0 0x00 0x55 LED string enables CONTROL1 0x01 0x55 Fault POWERCTRL 0x02 0x7F configuration Fault status, FLTSTATUS 0x03 RO global FLTMASK0 0x04 0xFF Fault enables, string FLTMASK1 0x05 0xFF monitoring ...

Page 12

... Table 6. Atmel LED Driver - MSL3162 Register Map ADD- DEFAULT REGISTER FUNCTION RESS VALUES PHI freq. FRATE 0x2A 0x01 multiplier Global GINT 0x2B 0x2B intensity ISTR0 0x30 LED string 6-bit individual To 0x20 analog current ISTR15 0x3F settings PHDLY0 0x40 0x00 PHDLY1 0x41 ...

Page 13

... MAX IPHIGEN   Atmel LED Driver-MSLB9082 Atmel LED Driver-MSLB9082 LED Backlight Driver Module Compact, 8-channel, 20W LED Driver Board with I For D >1, the maximum duty cycle is 100%. MAX Setting the LED PWM Dimming Duty Cycle The MSL3162 allows each LED string to operate at different duty cycles and phases ...

Page 14

... LED voltage range that suits the LEDs used so that the MSL3162 can adjust the voltage to optimize for the LED voltage. For more information, consult the MSL3162 data sheet. Table 6: LED Voltage Settings VOLTAGE SWITCH S3 LED VOLTAGE RANGE POSITION Position 1 Position 2 14 VOLTAGE SWITCH S3 POSITION 28.8V to 21.3V Position 3 39.7V to 32.3V Position 4 LED VOLTAGE RANGE 37.1V to 29.6V 33.0V to 25.6V Atmel LED Driver-MSLB9082 ...

Page 15

... LED is faulty by reading the STATUS, OCSTATUS, and SCSTATUS registers through the I Connecting the LEDs to the Atmel LED Driver- MSL9082 LED Driver The MSLB9082 driver board drives LED arrays with up to eight parallel strings series LEDs each through the output connector, J3 ...

Page 16

... Table 8. Settings for Higher Currents FULL-SCALE LED FULL-SCALE, PER- CURRENT SWITCH S2 STRING LED CURRENT POSITION Position 1 Position 2 16 FULL-SCALE LED CURRENT SWITCH S2 POSITION 100mA Position 3 120mA Position 4 FULL-SCALE, PER- STRING LED CURRENT 140mA 160mA Atmel LED Driver-MSLB9082 ...

Page 17

... Atmel LED Driver-MSLB9082 Schematic Atmel LED Driver-MSLB9082 Atmel LED Driver-MSLB9082 LED Backlight Driver Module Compact, 8-channel, 20W LED Driver Board with I Figure 2: Atmel LED Driver-MSLB9082 Board Schematic. C Interface 2 17 ...

Page 18

... Atmel LED Driver-MSLB9082 Component Placement Figure 3: EVU-MSL3162-BLU1 Component Placement. 18 Atmel LED Driver-MSLB9082 ...

Page 19

... Atmel LED Driver-MSLB9082 Bill of Materials Atmel LED Driver-MSL3162 LED driver board revised: Wednesday, October 7, 2009 Revision: 3 ITEM QUANTITY REFERENCE C3,C4,C13,C14 ...

Page 20

... Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN THE ATMEL TERMS AND CONDITIONS OF SALES LOCATED ON THE ATMEL WEBSITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ...

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