UC3901 隔离反馈生成器
UC3901 描述
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.
|
UC2901 |
UC3901 |
| Output Current(A) |
0.035 |
0.035 |
| Operating Supply(Min)(V) |
4.5 |
4.5 |
| Operating Supply(Max)(V) |
40 |
40 |
| Operating Supply Current(mA) |
5 |
5 |
| Reference Voltage(V) |
1.5 |
1.5 |
| Vref tol(%) |
2 |
3 |
| On Board Reference |
Yes |
Yes |
| On Board Oscillator |
Useable to 5 Mhz |
Useable to 5Mhz |
| Pin/Package |
14CDIP, 14PDIP, 14SOIC, 20PLCC |
14PDIP, 14SOIC, 16SOIC, 20PLCC |
| Rating |
Military |
Catalog |
UC3901 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
UC3901 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 |
| UC3901D |
ACTIVE |
0 to 70 |
2.70 | 1ku |
SOIC (D) | 14 |
50 | TUBE |
UC3901D |
| UC3901DG4 |
ACTIVE |
0 to 70 |
2.70 | 1ku |
SOIC (D) | 14 |
50 | TUBE |
UC3901D |
| UC3901DTR |
ACTIVE |
0 to 70 |
2.15 | 1ku |
SOIC (D) | 14 |
2500 | LARGE T&R |
UC3901D |
| UC3901DTRG4 |
ACTIVE |
0 to 70 |
2.15 | 1ku |
SOIC (D) | 14 |
2500 | LARGE T&R |
UC3901D |
| UC3901DW |
ACTIVE |
0 to 70 |
2.70 | 1ku |
SOIC (DW) | 16 |
40 | TUBE |
UC3901DW |
| UC3901DWG4 |
ACTIVE |
0 to 70 |
2.70 | 1ku |
SOIC (DW) | 16 |
40 | TUBE |
UC3901DW |
| UC3901DWTR |
ACTIVE |
0 to 70 |
2.15 | 1ku |
SOIC (DW) | 16 |
2000 | LARGE T&R |
UC3901DW |
| UC3901DWTRG4 |
ACTIVE |
0 to 70 |
2.15 | 1ku |
SOIC (DW) | 16 |
2000 | LARGE T&R |
UC3901DW |
| UC3901N |
ACTIVE |
0 to 70 |
2.30 | 1ku |
PDIP (N) | 14 |
25 | TUBE |
UC3901N |
| UC3901NG4 |
ACTIVE |
0 to 70 |
2.30 | 1ku |
PDIP (N) | 14 |
25 | TUBE |
UC3901N |
| UC3901Q |
ACTIVE |
0 to 70 |
2.70 | 1ku |
PLCC (FN) | 20 |
46 | TUBE |
UC3901Q |
| UC3901QG3 |
ACTIVE |
0 to 70 |
2.70 | 1ku |
PLCC (FN) | 20 |
46 | TUBE |
UC3901Q |
| UC3901QTR |
ACTIVE |
0 to 70 |
2.15 | 1ku |
PLCC (FN) | 20 |
1000 | LARGE T&R |
UC3901Q |
| UC3901QTRG3 |
ACTIVE |
0 to 70 |
2.15 | 1ku |
PLCC (FN) | 20 |
1000 | LARGE T&R |
UC3901Q |
UC3901 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 |
| UC3901D |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
UC3901D |
| UC3901DG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
UC3901DG4 |
UC3901DG4 |
| UC3901DTR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
UC3901DTR |
| UC3901DTRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
UC3901DTRG4 |
UC3901DTRG4 |
| UC3901DW |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
UC3901DW |
| UC3901DWG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
UC3901DWG4 |
UC3901DWG4 |
| UC3901DWTR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
|
UC3901DWTR |
| UC3901DWTRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
UC3901DWTRG4 |
UC3901DWTRG4 |
| UC3901N |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
N/A for Pkg Type |
|
UC3901N |
| UC3901NG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
N/A for Pkg Type |
UC3901NG4 |
UC3901NG4 |
| UC3901Q |
Green (RoHS & no Sb/Br) |
CU SN |
Level-2-260C-1 YEAR |
|
UC3901Q |
| UC3901QG3 |
Green (RoHS & no Sb/Br) |
CU SN |
Level-2-260C-1 YEAR |
|
UC3901QG3 |
| UC3901QTR |
Green (RoHS & no Sb/Br) |
CU SN |
Level-2-260C-1 YEAR |
|
UC3901QTR |
| UC3901QTRG3 |
Green (RoHS & no Sb/Br) |
CU SN |
Level-2-260C-1 YEAR |
|
UC3901QTRG3 |
UC3901 应用技术支持与电子电路设计开发资源下载
- UC3901 数据资料 dataSheet 下载.PDF
- TI 德州仪器AC/DC 和 DC/DC 电源产品选型与价格参考 . xls
- Dual MOSFET Driver
(PDF 498 KB)
- 标准线性产品交叉参考 (Rev. D)
(PDF 1058 KB)
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF
1305 KB)
- Analog-to-Digital Converter Grounding Practices Affect System
Performance (PDF 56 KB)
- Principles of Data Acquisition and Conversion (PDF 50 KB)
- Interleaving Analog-to-Digital Converters (PDF 64 KB)
- What
Designers Should Know About Data Converter Drift (PDF 95 KB)
- Giving Delta-Sigma Converters a Gain Boost with a Front End
Analog Gain Stage (PDF 70 KB)
- Programming Tricks for Higher Conversion Speeds Utilizing Delta
Sigma Converters (PDF 105 KB)
UC3901 工具与软件