UC2637 用于直流电机驱动的开关模式控制器
UC2637 描述
The UC1637 is a pulse width modulator circuit intended to be used for a variety of PWM motor drive and amplifier applications requiring either uni-directional or bi-directional drive circuits. When used to replace conventional drivers, this circuit can increase efficiency and reduce component costs for many applications. All necessary circuitry is included to generate an analog error signal and modulate two bi-directional pulse train outputs in proportion to the error signal magnitude and polarity.
This monolithic device contains a sawtooth oscillator, error amplifier, and two PWM comparators with ±100mA output stages as standard features. Protection circuitry includes under-voltage lockout, pulse-by-pulse current limiting, and a shutdown port with a 2.
|
UC2637 |
UC3637 |
| Operating Supply(Min)(V) |
5 |
5 |
| Operating Supply(Max)(V) |
36 |
36 |
| Operating Supply Current(mA) |
8.5 |
8.5 |
| Peak Output Current(A) |
0.4 |
0.4 |
| Pin/Package |
18CDIP, 18PDIP, 20PLCC, 20SOIC |
18PDIP, 20PLCC, 20SOIC |
| Rating |
Military |
Catalog |
UC2637 特性
- Single or Dual Supply Operation
- ±2.5V to ±20V Input Supply Range
- ±5% Initial Oscillator Accuracy; ±10% Over Temperature
- Pulse-by-Pulse Current Limiting
- Under-Voltage Lockout
- Shutdown Input with Temperature Compensated 2.5V Threshold
- Uncommitted PWM Comparators for Design Flexibility
- Dual 100mA, Source/Sink Output Drivers
UC2637 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 |
| UC2637DW |
ACTIVE |
0 to 70 |
3.85 | 1ku |
SOIC (DW) | 20 |
25 | TUBE |
UC2637DW |
| UC2637DWG4 |
ACTIVE |
0 to 70 |
3.85 | 1ku |
SOIC (DW) | 20 |
25 | TUBE |
UC2637DW |
| UC2637DWTR |
ACTIVE |
0 to 70 |
3.20 | 1ku |
SOIC (DW) | 20 |
2000 | LARGE T&R |
UC2637DW |
| UC2637DWTRG4 |
ACTIVE |
0 to 70 |
3.20 | 1ku |
SOIC (DW) | 20 |
2000 | LARGE T&R |
UC2637DW |
| UC2637N |
ACTIVE |
0 to 70 |
3.85 | 1ku |
PDIP (N) | 18 |
20 | TUBE |
UC2637N |
| UC2637NG4 |
ACTIVE |
0 to 70 |
3.85 | 1ku |
PDIP (N) | 18 |
20 | TUBE |
UC2637N |
| UC2637Q |
ACTIVE |
0 to 70 |
3.85 | 1ku |
PLCC (FN) | 20 |
46 | TUBE |
UC2637Q |
| UC2637QG3 |
ACTIVE |
0 to 70 |
3.85 | 1ku |
PLCC (FN) | 20 |
46 | TUBE |
UC2637Q |
UC2637 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 |
| UC2637DW |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
UC2637DW |
UC2637DW |
| UC2637DWG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
UC2637DWG4 |
UC2637DWG4 |
| UC2637DWTR |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
UC2637DWTR |
UC2637DWTR |
| UC2637DWTRG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-2-260C-1 YEAR |
UC2637DWTRG4 |
UC2637DWTRG4 |
| UC2637N |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
N/A for Pkg Type |
UC2637N |
UC2637N |
| UC2637NG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
N/A for Pkg Type |
UC2637NG4 |
UC2637NG4 |
| UC2637Q |
Green (RoHS & no Sb/Br) |
CU SN |
Level-2-260C-1 YEAR |
UC2637Q |
UC2637Q |
| UC2637QG3 |
Green (RoHS & no Sb/Br) |
CU SN |
Level-2-260C-1 YEAR |
UC2637QG3 |
UC2637QG3 |
UC2637 应用技术支持与电子电路设计开发资源下载
- UC2637 数据资料 dataSheet 下载.PDF
- TI 德州仪器运动/电机控制产品选型与价格 . xls
- PowerPADTM Thermally Enhanced Package
(PDF 1040 KB)
- 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A)
(PDF 2206 KB)
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
- PowerPADTM Made Easy (PDF 57 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)
UC2637 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| UC2637 评估模块 |
UC2637EVM |
Texas Instruments |
开发电路板/EVM |