- 您现在的位置：买卖IC网 > PDF目录20779 > MSL3162BT-R (Atmel)IC LED DRVR 16 CHAN PWM 40TQFN PDF资料下载
参数资料
| 型号： | MSL3162BT-R |
| 厂商： | Atmel |
| 文件页数： | 14/20页 |
| 文件大小： | 0K |
| 描述： | IC LED DRVR 16 CHAN PWM 40TQFN |
| 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： | 16 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光，通用 |
| 类型 - 次要： | RGB，白色 LED |
| 频率： | 18MHz ~ 22MHz |
| 电源电压： | 4.5 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-WFQFN 裸露焊盘 |
| 供应商设备封装： | 40-TQFN（6x6） |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
| 其它名称： | MSL3162BT-R-ND |
Detailed Description
Internal Regulators and Enable Input
Built-in current control MOSFETs capable of withstanding
up to 40V provide a compact solution. The Efficiency
Optimizer circuit controls the LED voltage generated
by an external DC-DC converter to minimize losses on
Setting the Maximum LED String Current
The maximum I ILED current for the 16 LED strings STR0
to STR15 is set by external resistor R ILED from the ILED
pin to GND and is determined by the equation:
the current control MOSFETs, improving efficiency and
reducing driver power dissipation. The MSL3162 uses
a high-speed, 1MHz I 2 C serial interface to control LED
current, PWM dimming, and fault detection circuitry,
I ILED =
2050
R ILED
making it an optimal solution for driving LED backlights
for LCD panels. Onboard EEPROM allows default settings
to be reconfigured for customization and settings to be
saved at turn-off, eliminating the need to re-write settings
at the next turn-on. The tiny, 6mm x 6mm QFN package
enables a compact solution while maintaining high power
dissipation.
Internal Regulators and Enable Input
The MSL3162 includes an internal linear regulator that
provides 2.5V supply voltage to power internal circuitry.
Bypass VDD to GND with a 1μF or greater capacitor as close
to the MSL3162 as possible.
The EN input turns the MSL3162 on and off. To turn
on the MSL3162, drive EN high with a 5V logic level,
and drive EN low to turn it off. When EN is low, the
MSL3162 enters low-power mode, reducing input
current to 20μA, and turns off the serial interface. For
automatic start-up, connect EN to VIN, allowing the
MSL3162 to start automatically when voltage is applied.
LED String Current Control
Each MSL3162 includes 16 current sink outputs, rated
at 40V, each capable of sinking up to 100mA through a
string of series connected LEDs. The internal Efficiency
Optimizer circuit controls the LED voltage, minimizing
power dissipated in the current sinks while maintaining
high current-regulation accuracy. The MSL3162 power
dissipation is limited to 2.1W. When using all 16 current
sinks, maintain the total power dissipation within power
dissipation limits.
14
where I ILED is in mA and R ILED is in k Ω .
R ILED =34.8k Ω sets the full-scale LED current to 58.9mA.
R ILED =20.5k Ω sets the full-scale LED current to 100mA,
the maximum allowed. The currents for the 16 LED
strings, STR0 to STR15, are reduced individually from
full scale with 6-bit resolution using the LED string
current control registers.
If I ILED for the 16 LED strings, STR0 to STR15, is chosen
to be 30mA or lower (by selecting the value of external
resistor R ILED to be greater than 68.3k Ω ), then the
values programmed into the LED string current control
registers must be limited to the range 0x00 to 0x1F.
The full range of 0x00 to 0x3F is only available if I ILED is
set to be greater than 30mA by using an R ILED value of
68.3k Ω or lower.
Atmel LED Driver-MSL3162
相关PDF资料 |
PDF描述 |
|---|---|
| EEC08DRYS-S93 | CONN EDGECARD 16POS DIP .100 SLD |
| TAJE108M002RNJ | CAP TANT 1000UF 2.5V 20% 2917 |
| LQP03TN3N9C04D | INDUCTOR 3.9NH 170MA 0201 |
| GCC12DCMS | CONN EDGECARD 24POS .100" WW |
| EBC05DRYS-S93 | CONN EDGECARD 10POS DIP .100 SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MSL3162-TB | 制造商:Atmel Corporation 功能描述:16-STRING RGB & WHITE LED DRIVERS WITH A - Bulk |
| MSL3163BT | 功能描述:LED照明驱动器 16Str Wht RGB Adptv Pwr Ctrl E2PROM I2 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 |
| MSL3163BT-R | 功能描述:LED照明驱动器 16Str Wht RGB Adptv Pwr Ctrl E2PROM I2 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 |
| MSL3164BT | 功能描述:LED照明驱动器 16Str Whte & RGB LED Dr Adptv Pwr Ctrl 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 |
| MSL3164BT-R | 功能描述:LED照明驱动器 16Str Whte & RGB LED Dr Adptv Pwr Ctrl 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 |
发布紧急采购，3分钟左右您将得到回复。