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Atmel LED Driver-MSL3085
8-string White and RGB LED Driver with Adaptive Power
Control, EEPROM, and I 2 C/SMBus Serial Interface
PIN
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
EP
PIN
NAME
S12
G12
D12
S14
G14
D14
VCC
PHI
GSC
PWM
EN
VIN
VDD
S0
G0
D0
S2
G2
D2
S4
EP
PIN DESCRIPTION
Source sense input 12
Source sense input for external MOSFET 12. Connect S12 to the source of the external MOSFET, and to the current
sense resistor for LED string 12. The full-scale LED current is reached when 500mV is across the current sense resistor.
Gate output 12
Gate drive output for external MOSFET 12. Connect G12 to the gate of the external MOSFET driving LED string 12.
Drain sense input 12
Drain sense input for external MOSFET 12. Connect D12 through a 10MΩ resistor to the drain of the external MOSFET
driving LED string 12.
Source sense input 14
Source sense input for external MOSFET 14. Connect S14 to the source of the external MOSFET, and to the current
sense resistor for LED string 14. The full-scale LED current is reached when 500mV is across the current sense resistor.
Gate output 14
Gate drive output for external MOSFET 14. Connect G14 to the gate of the external MOSFET driving LED string 14.
Drain Sense Input 14
Drain sense input for external MOSFET 14. Connect D14 through a 10MΩ resistor to the drain of the external MOSFET
driving LED string 14.
5V internal LDO regulator output
VCC powers the FBO outputs. Bypass VCC to GND with a 4.7μF ceramic capacitor placed close to VCC.
Phase synchronization input
Drive PHI with an external signal of typically 100Hz to 480Hz to synchronize the MSL3085 LED PWM timing.
Gate shift clock input
Drive GSC with the gate shift clock of the video signal.
PWM input
PWM allows external control of the brightness of all LED strings. Drive PWM with a pulse-width-modulated signal with a
duty cycle of 0% to 100% and a frequency up to 5kHz. When not configured as an input, PWM is high impedance.
Enable input (active high)
Drive EN high to turn on the MSL3085, and drive EN low to turn off the MSL3085. For automatic start-up, connect EN to
VIN. When EN is low, the entire device, including the serial interface, is turned off. Driving EN high initiates a boot load
of the EEPROM data into the control registers, simulating a cold start-up.
Supply voltage input
Connect a 12V ±10% supply to VIN. Bypass VIN to GND with a 10μF ceramic capacitor placed close to VIN.
2.5V internal LDO regulator output
VDD powers internal logic. Bypass VDD to GND with a 4.7μF ceramic capacitor placed close to VDD.
LED string 0 external MOSFET source input
Source sense input for external MOSFET 0. Connect S0 to the source of the external MOSFET, and to the current sense
resistor for LED string 0. The full-scale LED current is reached when 500mV is across the current sense resistor.
Gate output 0
Gate drive output for external MOSFET 0. Connect G0 to the gate of the external MOSFET driving LED string 0.
Drain sense input 0
Drain sense input for external MOSFET 0. Connect D0 through a 10MΩ resistor to the drain of the external MOSFET
driving LED string 0.
LED string 2 external MOSFET source input
Source sense input for external MOSFET 2. Connect S2 to the source of the external MOSFET, and to the current sense
resistor for LED string 2. The full-scale LED current is reached when 500mV is across the current sense resistor.
Gate output 2
Gate drive output for external MOSFET 2. Connect G2 to the gate of the external MOSFET driving LED string 2.
Drain sense input 2
Drain sense input for external MOSFET 2. Connect D2 through a 10MΩ resistor to the drain of the external MOSFET
driving LED string 2.
LED string 4 external MOSFET source input
Source sense input for external MOSFET 4. Connect S4 to the source of the external MOSFET, and to the current sense
resistor for LED string 4. The full-scale LED current is reached when 500mV is across the current sense resistor.
Exposed pad, power ground
Connect EP to system ground and to GND using short, wide traces. EP provides thermal relief for the die.
Atmel LED Driver-MSL3085
7
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相关代理商/技术参数
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
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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
MSL3086-IUR
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
MSL3088-IU
功能描述:LED照明驱动器 8-Str LED Driver Intrnl Bst Cntr/Phas
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
MSL3088-IUR
功能描述:LED照明驱动器 8-Str LED Driver Intrnl Bst Cntr/Phas
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
MSL3162BT
功能描述:LED照明驱动器 16String RGB & White LED Drivers with A 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
MSL3162BT-ET1R
制造商:Atmel Corporation 功能描述:LED DRIVER - Bulk
MSL3162BT-R
功能描述:LED照明驱动器 16String RGB & White LED Drivers with A 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