| UCC3819A | |
| UVLO Thresholds On/Off(V) | 10.2/9.7 |
| Operating Supply(Max)(V) | 17 |
| 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 |
The UCC2819A/UCC3819A 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 UCC3819A offers new features such as lower start-up current, lower power dissipation, overvoltage protection, a shunt UVLO detect circuitry and a leading-edge modulation technique to reduce ripple current in the bulk capacitor.
The UCC3819A allows the output voltage to be programmed by bringing out the error amplifier noninverting input.
| 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 |
| UCC3819AD | ACTIVE | -40 to 85 | 1.45 | 1ku | SOIC (D) | 16 | 40 | TUBE | UCC3819AD |
| UCC3819ADG4 | ACTIVE | -40 to 85 | 1.45 | 1ku | SOIC (D) | 16 | 40 | TUBE | UCC3819AD |
| UCC3819ADR | ACTIVE | -40 to 85 | 1.30 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | UCC3819AD |
| UCC3819ADRG4 | ACTIVE | -40 to 85 | 1.30 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | UCC3819AD |
| UCC3819AN | ACTIVE | -40 to 85 | 1.45 | 1ku | PDIP (N) | 16 | 25 | TUBE | UCC3819AN |
| UCC3819ANG4 | ACTIVE | -40 to 85 | 1.45 | 1ku | PDIP (N) | 16 | 25 | TUBE | UCC3819AN |
| UCC3819APW | ACTIVE | -40 to 85 | 1.45 | 1ku | TSSOP (PW) | 16 | 90 | TUBE | 3819A |
| UCC3819APWG4 | ACTIVE | -40 to 85 | 1.45 | 1ku | TSSOP (PW) | 16 | 90 | TUBE | 3819A |
| UCC3819APWR | ACTIVE | -40 to 85 | 1.30 | 1ku | TSSOP (PW) | 16 | 2000 | LARGE T&R | 3819A |
| UCC3819APWRG4 | ACTIVE | -40 to 85 | 1.30 | 1ku | TSSOP (PW) | 16 | 2000 | LARGE T&R | 3819A |
| 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 |
| UCC3819AD | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | UCC3819AD | |
| UCC3819ADG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | UCC3819ADG4 | UCC3819ADG4 |
| UCC3819ADR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | UCC3819ADR | |
| UCC3819ADRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | UCC3819ADRG4 | UCC3819ADRG4 |
| UCC3819AN | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | UCC3819AN | |
| UCC3819ANG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | N/A for Pkg Type | UCC3819ANG4 | UCC3819ANG4 |
| UCC3819APW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UCC3819APW | |
| UCC3819APWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UCC3819APWG4 | UCC3819APWG4 |
| UCC3819APWR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UCC3819APWR | |
| UCC3819APWRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | UCC3819APWRG4 | UCC3819APWRG4 |
| 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 |
| UCC3819A 评估模块 | UCC3819AEVM | 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 |
