UC1901 隔离反馈生成器
The UC1901 family is designed to solve many of the problems associated with closing a feedback control loop across a voltage isolation boundary. As a stable and reliable alternative to an optical coupler, these devices feature an amplitude modulation system which allows a loop error signal to be coupled with a small RF transformer or capacitor.
The programmable, high-frequency oscillator within the UC1901 series permits the use of smaller, less expensive transformers which can readily be built to meet the isolation requirements of today's line-operated power systems. As an alternative to RF operation, the external clock input to these devices allows synchronization to a system clock or to the switching frequency of a SMPS
| UC1901 | |
| Output Current (A) | 0.035 |
| Operating Supply (Min) (V) | 4.5 |
| Operating Supply (Max) (V) | 40 |
| Operating Supply Current (mA) | 5 |
| Reference Voltage (V) | 1.5 |
| Vref tol (%) | 2 |
| On Board Reference | Yes |
| On Board Oscillator | Useable to 5 MHz |
| Rating | Military |
UC1901 特性
- An Amplitude-Modulation System for Transformer Coupling an Isolated Feedback Error Signal
- Low-Cost Alternative to Optical Couplers
- Internal 1% Reference and Error Amplifier
- Internal Carrier Oscillator Usable to 5MHz
- Modulator Synchronizable to an External Clock
- Loop Status Monitor
UC1901 芯片订购指南
| 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 |
| 5962-89441012A | ACTIVE | -55 to 125 | 20.19 | 100u | LCCC (FK) | 20 | 1 | TUBE | |
| 5962-8944101CA | ACTIVE | -55 to 125 | 11.00 | 100u | CDIP (J) | 14 | 1 | TUBE | |
| UC1901J | ACTIVE | -55 to 125 | 8.12 | 100u | CDIP (J) | 14 | 1 | TUBE | |
| UC1901J883B | ACTIVE | -55 to 125 | 11.00 | 100u | CDIP (J) | 14 | 1 | TUBE | |
| UC1901L | ACTIVE | -55 to 125 | 17.90 | 100u | LCCC (FK) | 20 | 1 | TUBE | |
| UC1901L883B | ACTIVE | -55 to 125 | 20.19 | 100u | LCCC (FK) | 20 | 1 | TUBE |
UC1901 质量与无铅数据
| 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 |
| 5962-89441012A | TBD | Call TI | Call TI | 5962-89441012A | 5962-89441012A |
| 5962-8944101CA | TBD | Call TI | Call TI | 5962-8944101CA | 5962-8944101CA |
| UC1901J | TBD | A42 | N/A for Pkg Type | UC1901J | UC1901J |
| UC1901J883B | TBD | A42 | N/A for Pkg Type | UC1901J883B | UC1901J883B |
| UC1901L | TBD | POST-PLATE | N/A for Pkg Type | UC1901L | UC1901L |
| UC1901L883B | TBD | POST-PLATE | N/A for Pkg Type | UC1901L883B | UC1901L883B |
UC1901 工具与软件
| 培训内容 | 型号 | 软件/工具类型 |
| 最常用开关模式电源的功率级设计器 | POWERSTAGE-DESIGNER | 分析软件 |
UC1901 应用技术支持与电子电路设计开发资源下载
- UC1901数据资料 dataSheet 下载.PDF
- TI 德州仪器电源管理选型与价格参考 . xls
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