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参数资料
| 型号： | MSL3082CS |
| 厂商： | Atmel |
| 文件页数： | 6/16页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER 8 STRING |
| 产品培训模块： | Industrial Panel Backlighting Driver ICs LED Lighting Drivers LED Driver Basics |
| 标准包装： | 2,500 |
| 系列： | Adaptive SourcePower™ |
| 拓扑： | 交直流离线开关，PWM |
| 输出数： | 8 |
| 内部驱动器： | 无 |
| 类型 - 主要： | 背光，通用 |
| 类型 - 次要： | RGB，白色 LED |
| 频率： | 18MHz ~ 22MHz |
| 电源电压： | 10.8 V ~ 13.2 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 44-VFQFN 裸露焊盘 |
| 供应商设备封装： | 44-QFN（7x7） |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 105°C |
Pin Descriptions
6
PIN #
1
2
3, 44
4
5
6
7, 43
8, 11, 14, 17,
20, 23, 26, 29
9, 12, 15, 18,
21, 24, 27, 30
10, 13, 16, 19,
22, 25, 28, 31
32
33
34
35, 39
36, 37, 38
40
41
42
Exposed Pad
NAME
SCL
SDA
AD1,
AD0
FLTB
FBI
FBO
GND
S0 - S7
G0 - G7
D0 - D7
VIN
VDD
EN
NC
CGND
PHI
GSC
PWM
EP
DESCRIPTION
I2C serial clock Input
SCL is the I2C serial interface clock input.
I2C serial data I/O
SDA is the I2C serial interface data I/O.
I2C slave ID selection inputs
AD0 and AD1 select the device I2C slave address.
Fault output (open drain, active low)
FLTB sinks current to GND when the MSL3082 detects a fault.
FLTB remains low until the fault registers have been read or EN is toggled low.
Efficiency Optimizer input
Connect FBI to FBO of the next device when chaining the Efficiency Optimizers.
If unused connect FBI to GND close to the device.
Efficiency Optimizer output
Connect FBO through a Schottky diode to the string power supply’s feedback node (Figure 4),
or to FBI of the previous device (Figure 5).
If unused leave FBO unconnected.
Power ground
Connect GND to system ground, to CGND and to EP with short, wide traces.
String 0 thru 7 source sense inputs
Connect S n to the source of external MOSFET n , and to the current sense resistor for LED string n .
The full-scale LED current is reached when 500mV is across the current sense resistor.
String 0 thru 7 external MOSFET gate drive outputs
Connect G n to the gate of the external MOSFET n .
String 0 thru 7 external MOSFET drain sense inputs
Connect D n to the drain of external MOSFET n through a 10M? resistor.
Supply voltage input
Connect a 12V ±10% supply to VIN. Bypass VIN to GND with a 1μF ceramic capacitor placed close to VIN.
Internal 2.5V regulator capacitor connection
Bypass VDD to GND with a 10μF ceramic capacitor placed close to the device.
Enable input (active high)
Drive EN high to turn on the MSL3082, drive EN low to turn off the MSL3082.
For automatic start-up, connect EN to VIN through a 100k? resistor.
No connection
Make no connection to NC.
Connect to ground
Connect CGND to system ground, to GND and to EP using short, wide traces.
Phase synchronization input
Drive PHI with an external signal from 40Hz to 10kHz to synchronize the PWM dimming to the signal at PHI.
Connect PHI to GND if unused.
Gate shift clock input
Drive GSC with the gate shift clock of the video signal up to 5MHz. GSC sets the resolution of PWM dimming.
Connect GSC to GND if unused.
PWM input
Drive PWM with a pulse-width-modulated signal with a duty cycle of 0% to 100% and frequency of 20Hz
to 50kHz to control the brightness of all LED strings.
Power ground
Connect EP to system ground, GND and CGND using short, wide traces. EP offers thermal relief to the die.
Atmel LED Driver-MSL3082
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相关代理商/技术参数 |
参数描述 |
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| MSL3082CS-R | 功能描述:LED照明驱动器 8Str Hi Pwr White or RGB LED Drivers RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MSL3085 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-string White and RGB LED Driver with Adaptive Power Control, EEPROM, and I2C/SMBus Serial Interface |
| MSL3085BT | 功能描述:LED照明驱动器 8-Stinge White & RGB LED Dvrs wAdapt Pwr RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MSL3085BT-R | 功能描述:LED照明驱动器 8-String White & RGB LED Drivers with Ad RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| MSL3086-IU | 功能描述:LED照明驱动器 8-Str LED Driver Internal Boost Cntr RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
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