NCL30082:Dimmable Quasi-Resonant Primary Side Current Mode Controller for LED Lighting with thermal foldback
The NCL30082 is a PWM current mode controller targeting isolated flyback and non-isolated constant current topologies. The controller operates in a quasi-resonant mode to provide high efficiency. Thanks to a novel control method, the device is able to precisely regulate a constant LED current from the primary side. This removes the need for secondary side feedback circuitry, biasing and an optocoupler. The device is highly integrated with a minimum number of external components. A robust suite of safety protection is built in to simplify the design. The device supports analog/digital dimming and thermal foldback. While the NCL30082 has integrated fixed overvoltage protection, the designer has the option to program a lower OVP level.
技术特性
- Quasi−resonant Peak Current−mode Control Operation
- Primary Side Sensing (no optocoupler needed)
- Wide VCC Range
- Source 300 mA / Sink 500 mA Totem Pole Driver with 12 V Gate
Clamp
- Precise LED Constant Current Regulation ±1% Typical
- Line Feed−forward for Enhanced Regulation Accuracy
- Low LED Current Ripple
- 250 mV ±2% Guaranteed Voltage Reference for Current Regulation
- ~ 0.9 Power Factor with Valley Fill Input Stage
- Low Start−up Current (13 A typ.)
- Analog or Digital Dimming
- Thermal Fold−back
- Wide Temperature Range of −40 to +125°C
- Pb−free, Halide−free MSL1 Product
终端产品
- LED Bulbs and Downlights
- LED Driver Power Supplies
- Electronic Control Gear for LEDs
应用
- Integrated LED Drive Electronics
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优势
- No opto-coupler or secondary control circuitry
- Simplifies support for broad range of LED forward voltages
- No need for binned forward voltage LEDs or production trimming
- Supports US Energystar ® Integral LED Bulb and Luminaire Specifications
- Easy handling of possible LED string faults
- Avoids overheating in fault mode
- Supports outdoor and high temperature environments
- Robust Fault Handling
- Enhanced Regulation Accuracy
- Flexible Fault Handling
封装图 PACKAGE DIMENSIONS
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评估板信息
订购信息 Ordering Information
| 产品 |
状况 |
Compliance |
具体说明 |
封装 |
MSL* |
容器 |
预算价格 (1千个数量的单价） |
| 类型 |
外形 |
类型 |
数量 |
| NCL30082ADMR2G |
Active |
|
Dimmable Quasi-Resonant Primary Side Current Mode Controller for LED Lighting with thermal foldback, and latching for critcal faults |
Micro8™-8 |
846A-02 |
1 |
Tape and Reel |
4000 |
$0.45 |
| NCL30082BDMR2G |
Active |
|
Dimmable Quasi-Resonant Primary Side Current Mode Controller for LED Lighting with thermal foldback, and auto-recoverable for faults |
Micro8™-8 |
846A-02 |
1 |
Tape and Reel |
4000 |
$0.45 |
数据资料DataSheet下载
