UCC3818A_TI 具有 10.5V/10V UVLO 和较小栅极驱动电阻、温度范围为 0°C 至 70°C 的 6kHz 至 220kHz CCM PFC 控制器

UCC3818A的基本参数

制造厂商：TI
产品类别：电源管理
技术类目：交流/直流和隔离式直流/直流开关稳压器 - 功率因数校正 (PFC) 控制器
功能描述：具有 10.5V/10V UVLO 和较小栅极驱动电阻、温度范围为 0°C 至 70°C 的 6kHz 至 220kHz CCM PFC 控制器
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UCC3818A的产品详情：

The UCC3817A and the UCC3818A family provides all the functions necessary for active power factor corrected preregulators. The controller achieves near unity power factor by shaping the ac input line current waveform to correspond to that of the ac input line voltage. Average current mode control maintains stable, low distortion sinusoidal line current.

Designed in Texas Instrument’s BiCMOS process, the UCC3817A/UCC3818A offers new features such as lower start-up current, lower power dissipation, overvoltage protection, a shunt UVLO detect circuitry, a leading-edge modulation technique to reduce ripple current in the bulk capacitor and an improved, low-offset (±2 mV) current amplifier to reduce distortion at light load conditions.

The UCC3817A/18A family of PFC Controllers is directly pin for pin compatible with the UCC3817/18 family of devices. Only the output stage of UCC3817A family has been modified to allow use of a smaller external gate drive resistor values. For some power supply designs where an adequately high enough gate drive resistor can not be used, the UCC3817A/18A family offers a more robust output stage at the cost of increasing the internal gate resistances. The gate drive of the UC3817A/18A family however remains strong at ±1.2 A of peak current capability.

UCC3817A offers an on-chip shunt regulator with low start-up current, suitable for applications utilizing a bootstrap supply. UCC3818A is intended for applications with a fixed supply (VCC). Both devices are available in the 16-pin D, N and PW packages.

UCC3818A的优势和特性：

Controls Boost Preregulator to Near-Unity Power Factor
Limits Line Distortion
World Wide Line Operation
Overvoltage Protection
Accurate Power Limiting
Average Current Mode Control
Improved Noise Immunity
Improved Feed-Forward Line Regulation
Leading Edge Modulation
150-μA Typical Start-Up Current
Low-Power BiCMOS Operation
12-V to 17-V Operation
Frequency Range of 6 kHz to 220 kHz

UCC3818A的参数（英文）：

Topology
Boost
Control mode
CCM
Practical operating frequency (Max) (MHz)
0.25
UVLO thresholds on/off (V)
10.5/10
Device type
Controllers
Operating supply current (mA)
4
Features
Average Current Mode, Continuous Control Mode , Enable, OVP
Rating
Catalog
Operating temperature range (C)
0 to 70

UCC3818A具体的完整产品型号参数及价格（美元）：

UCC3818A的完整型号有：UCC3818AD、UCC3818ADR、UCC3818AN、UCC3818APW、UCC3818APWR，以下是这些产品的关键参数及官网采购报价：

UCC3818AD，工作温度：0 to 70，封装：SOIC (D)-16，包装数量MPQ：40个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网UCC3818AD的批量USD价格：1.571（1000+）

UCC3818ADR，工作温度：0 to 70，封装：SOIC (D)-16，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网UCC3818ADR的批量USD价格：1.309（1000+）

UCC3818AN，工作温度：0 to 70，封装：PDIP (N)-16，包装数量MPQ：25个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：NIPDAU，TI官网UCC3818AN的批量USD价格：1.767（1000+）

UCC3818APW，工作温度：0 to 70，封装：TSSOP (PW)-16，包装数量MPQ：90个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网UCC3818APW的批量USD价格：1.571（1000+）

UCC3818APWR，工作温度：0 to 70，封装：TSSOP (PW)-16，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网UCC3818APWR的批量USD价格：1.309（1000+）

UCC3818A的评估套件：

UCC3818A的电路图解：

UCC3818A的评估套件：