UCC3818DW 供应商
UCC3818DW 属性参数
- 标准包装：40
- 类别：集成电路 (IC)
- 家庭：PMIC - PFC（功率因数修正）
- 系列：-
- 模式：平均电流
- 频率 - 开关：250kHz
- 电流 - 启动：150µA
- 电源电压：9.7 V ~ 18 V
- 工作温度：0°C ~ 70°C
- 安装类型：表面贴装
- 封装/外壳：16-SOIC（0.295"，7.50mm 宽）
- 供应商设备封装：16-SOIC
- 包装：管件
- 配用：296-11511-5-ND - EVAL MOD FOR UCC3817-015
- 其它名称：296-11514-5
产品特性
- Controls Boost Preregulator to Near-Unity Power Factor
- Limits Line Distortion
- World Wide Line Operation
- Over-Voltage 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
- Up to 18-V Operation
- Frequency Range 6 kHz to 220 kHz
产品概述
The UCCx817 and UCCx818 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 UCCx817 and UCCx818 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.
UCC3818DWTR