The optional microcontroller board and graphical user interface (GUI)
software allow control of the driver board through a personal computer. This
gives access to the internal features of the MSL3162, including fault detection,
digital control of LED current, individual LED string on/off control, and internally
generated PWM dimming.
The compact eight-channel LED driver board is intended for evaluation,
prototyping, or small production runs. Gerber files and Cadence OrCAD layout
files are available to allow the circuit to be integrated into a larger system for
large production runs.
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 up to 10
series-connected LEDs at up
to 160mA per channel. The
driver board is configured to
operate from a 10 - 16V input
voltage. The full-scale LED
current is preset to 50, 60,
70, or 80mA per LED string,
selected by an onboard switch.
Current can be reduced from
full scale through the I
2
C serial
interface in 64 linear steps.
Digital (PWM) dimming is
available through an external
signal or by using the internal
PWM generator via the
serial interface.
Applications
•
LCD Panel LED Backlight Driver
Ordering Information
PART
MSLB9082
DESCRIPTION
Compact, 8-channel LED driver module
2
Atmel LED Driver-MSLB9082
Atmel LED Driver-MSLB9082
LED Backlight Driver Module
Compact, 8-channel, 20W LED Driver Board with I
2
C Interface
Key Features
•
Drives Up to 8LED Strings
•
Up to 10 LEDs per String
•
Up to 160mA per LED string
•
Internally Generated PWM Dimming
•
I²C Serial Interface
•
Fault Detection and Protection
•
10 To 16V Input Voltage Range
•
Up To 20W Output Power
•
Small Size, 1.0” X 2.0”
•
Four Available I²C Slave Addresses, Switch Selectable
•
Four Full-scale Current Settings, Switch Selectable
•
Four Available Voltage Ranges To Support Multiple
Panels
•
1.4mhz Switching Frequency
•
Internal or External PWM Dimming Control
•
Digital Control Of LED String Current
•
Individual LED String On/Off Digital Control
•
Short Circuit Or Open Circuit LED String Detection
•
Automatic Over-voltage Protection
LED Driver Board
1.0”
(25.4mm)
2.0”
(50.8mm)
Atmel LED Driver-MSLB9082
3
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
PWR
NC
NC
NC
SDA
SCL
FLTB
EN
PWM
GND
PIN NUMBER
1,2
3
4
5
6
7
8
9
10
11,12
No connection
No connection
No connection
I²C serial data
I²C serial clock
Active low fault indication output
Enable control input
PWM dimming control input
Ground
PIN DESCRIPTION
Input power to integrated boost regulator circuit
Table 2. J3 Output Connector Pin Description
s
4
Atmel LED Driver-MSLB9082
Atmel LED Driver-MSLB9082
LED Backlight Driver Module
Compact, 8-channel, 20W LED Driver Board with I
2
C Interface
PIN NAME
VLED
STRA
STRB
STRC
STRD
STRE
STRF
STRG
STRH
GND
PIN NUMBER
1-8
9
10
11
12
13
14
15
16
17-20
LED string anode output voltage
LED string A cathode connection (MSL3162 STR0 and STR1)
LED string B cathode connection (MSL3162 STR2 and STR3)
LED string C cathode connection (MSL3162 STR4 and STR5)
LED string D cathode connection (MSL3162 STR6 and STR7)
LED string E cathode connection (MSL3162 STR8 and STR9)
LED string F cathode connection (MSL3162 STR10 and STR11)
LED string G cathode connection (MSL3162 STR12 and STR13)
LED string H cathode connection (MSL3162 STR14 and STR15)
Ground
PIN DESCRIPTION
Absolute Maximum Ratings
Voltage (With Respect to GND)
STR1-STR6 ............................................................................................................................................................................................. -0.3V to +40V
VLED ............................................................................................................................................................................................................. -0.3V to +40V
PWR .............................................................................................................................................................................................................. -0.3V to +25V
EN, PWM, SDA, SCL, FLTB .......................................................................................................................................................-0.3V to +5.5V
Ambient operating temperature range T
A
= T
MIN
to T
MAX
.................................................................................... -40°C to +50°C
Now I am doing a project. Due to the limitation of 51 MCU resources, I can only communicate by simulating I2C. It is relatively simple for the host to simulate I2C, but it is a bit difficult for the s...
The lower computer sends data to the upper computer, but I haven't written the receiving software for the upper computer yet. I want to know whether the GPRS data has been sent to the upper computer c...
In the process of PCB wiring, what is the bus wiring method? ? In the county card, the motherboard saw that its wiring was very beautiful. After asking, it was said that it was bus wiring. I don't und...
Dear friends, which packaging and testing companies in the Yangtze River Delta region do their own plating processing? Is Deflash processed using ED or CD? If you have friends who are doing this, I ho...
It is necessary to develop a data logger, and the requirements are as follows: 1. Sampling rate > 1Ms/s, 16bit 2. Sensitivity not greater than 10mV, the maximum value can be <5V 3. Data can be saved (...
Recently, due to work needs, I have come into contact with some optocoupler and magnetic coupling isolation technologies. Maybe everyone is familiar with them. Please give me more advice. Now I will s...
introduction
Since the beginning of the 21st century, the world of information has changed rapidly. Maybe a high-tech product will be released today and a better similar product will be releas...[Details]
With the rapid development of science and technology, especially the widespread application of digital technology and various ultra-large-scale integrated circuits, electronic equipment, especially...[Details]
introduction
In the discharge process of tokamak plasma physics, the study of rupture and sawtooth is of great significance. Rupture and sawtooth exist in most tokamaks. Rupture is a notew...[Details]
Due to the significant increase in electronic devices in automotive and industrial applications, the automotive and industrial markets continue to play an important role in China's electronics in...[Details]
1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]
Single-chip microcomputers are widely used because of their small size, powerful functions and low price. This article introduces the method of designing a micro electronic piano using the AT89C51 sin...[Details]
introduction
MAX6636 is a multi-channel precision temperature monitor that can not only monitor local temperature, but also connect up to 6 diodes externally. Each channel has a programmable...[Details]
Printed circuit boards ( PCBs
)
are used in most electrical products
. If a PCB has low
insulation resistance
(IR), the performance of the circuits on the PCB will be greatly reduced...[Details]
hint:
The number of speakers and their spacing limit the sound field of a portable stereo system.
Spatial audio attempts to artificially recreate the experience of listening to sounds i...[Details]
The serial interface real-time clock chip DS1302 launched by Dallas Company in the United States can trickle charge the backup battery of the clock chip. Due to the main features of the chip such a...[Details]
1 Basic Features
In computer control systems and various intelligent instruments and meters composed of single-chip microcomputers (or microprocessors), various external analog signals must be ...[Details]
With the rapid development of cities and the improvement of citizens' living standards, the number of various vehicles in cities is growing, and the demand for parking spaces in major commercial an...[Details]
With the rapid development of the national economy, lifting and hoisting operations are used more and more frequently and widely in various fields of economic construction. China has continuously expl...[Details]
introduction
LEDs continue to gain popularity in automotive applications, thanks to their long lifespan and the flexibility they offer for body styling and interior design. Some may be surpris...[Details]
Electric bicycles have long been a means of transportation for lower-income groups due to their affordability. The largest concentrated expense in the use of electric vehicles is the cost of replac...[Details]
51mcu
京公网安备 11010802033920号
EEWORLD
