| UCC3818A | |
| UVLO Thresholds On/Off(V) | 10.5/10 |
| Operating Supply(Max)(V) | 18 |
| Startup Current(mA) | 0.15 |
| Operating Supply Current(mA) | 4 |
| Vref(V) | 7.5 |
| Vref tol(%) | 1.5 |
| Duty Cycle(Max)(%) | 100 |
| Practical Operating Frequency(Max)(MHz) | 0.25 |
| Pin/Package | 16PDIP, 16TSSOP, 16SOIC |
| Rating | Catalog |
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 UCC3818A/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.
| 器件 | 状态 | 温度 (oC) | 价格（美元） | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| UCC3818AD | ACTIVE | -40 to 85 | 1.35 | 1ku | SOIC (D) | 16 | 40 | TUBE | UCC3818AD |
| UCC3818ADG4 | ACTIVE | -40 to 85 | 1.35 | 1ku | SOIC (D) | 16 | 40 | TUBE | UCC3818AD |
| UCC3818ADR | ACTIVE | -40 to 85 | 1.25 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | UCC3818AD |
| UCC3818ADRG4 | ACTIVE | -40 to 85 | 1.25 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | UCC3818AD |
| UCC3818AN | ACTIVE | -40 to 85 | 1.35 | 1ku | PDIP (N) | 16 | 25 | TUBE | UCC3818AN |
| UCC3818ANG4 | ACTIVE | -40 to 85 | 1.35 | 1ku | PDIP (N) | 16 | 25 | TUBE | UCC3818AN |
| UCC3818APW | ACTIVE | -40 to 85 | 1.35 | 1ku | TSSOP (PW) | 16 | 90 | TUBE | 3818A |
| UCC3818APWG4 | ACTIVE | -40 to 85 | 1.35 | 1ku | TSSOP (PW) | 16 | 90 | TUBE | 3818A |
| UCC3818APWR | ACTIVE | -40 to 85 | 1.25 | 1ku | TSSOP (PW) | 16 | 2000 | LARGE T&R | 3818A |
| UCC3818APWRG4 | ACTIVE | -40 to 85 | 1.25 | 1ku | TSSOP (PW) | 16 | 2000 | LARGE T&R | 3818A |
| 器件 | 环保计划* | 铅/焊球涂层 | MSL 等级/回流焊峰 | 环保信息与无铅 (Pb-free) | DPPM / MTBF / FIT 率 |
| UCC3818AD | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | UCC3818AD | |
| UCC3818ADG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | UCC3818ADG4 | UCC3818ADG4 |
| UCC3818ADR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | UCC3818ADR | |
| UCC3818ADRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | UCC3818ADRG4 | UCC3818ADRG4 |
| UCC3818AN | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | UCC3818AN | |
| UCC3818ANG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | UCC3818ANG4 | UCC3818ANG4 |
| UCC3818APW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UCC3818APW | |
| UCC3818APWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UCC3818APWG4 | UCC3818APWG4 |
| UCC3818APWR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UCC3818APWR | |
| UCC3818APWRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UCC3818APWRG4 | UCC3818APWRG4 |
| 名称 | 型号 | 公司 | 工具/软件类型 |
| 音频的快速搜索选择工具 | AUDIO_SELECTION_TOOL | Texas Instruments | 免费评估工具 |
| UCC3818A 评估模块 | UCC3818AEVM | Texas Instruments | 开发电路板/EVM |
| 用于音频转换器的软件驱动程序 | CODECDRIVERS-SW | Texas Instruments | 应用软件 |
