UC3770A 高性能步进电机驱动电路
UC3770A 描述
The UC3770A and UC3770B are high-performance full bridge drivers that offer higher current and lower saturation voltage than the UC3717 and the UC3770. Included in these devices are LS-TTL compatible logic inputs, current sense, monostable, thermal shutdown, and a power H-bridge output stage. Two UC3770As or UC3770Bs and a few external components form a complete micro-processor-controllable stepper motor power system.
Unlike the UC3717, the UC3770A and the UC3770B require external high-side clamp diodes. The UC3770A and UC3770B are identical in all regards except for the current sense thresholds. Thresholds for the UC3770A are identical to those of the older UC3717 permitting drop-in replacement in applications where high-side diodes are not required.
|
UC3770A |
| Operating Supply(Min)(V) |
10 |
| Operating Supply(Max)(V) |
45 |
| Operating Supply Current(mA) |
33 |
| Peak Output Current(A) |
1.5 |
| Pin/Package |
16PDIP, 28PLCC |
| Rating |
Catalog |
UC3770A 特性
- Full-Step, Half-Step and Micro-Step Capability
- Bipolar Output Current up to 2A
- Wide Range of Motor Supply Voltage: 10\x9650V
- Low Saturation Voltage
- Wide Range of Current Control: 5mA\x962A
- Current Levels Selected in Steps or Varied Continuously
- Thermal Protection and Soft Intervention
UC3770A 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 |
| UC3770AN |
ACTIVE |
0 to 70 |
3.15 | 1ku |
PDIP (N) | 16 |
25 | TUBE |
UC3770AN |
| UC3770ANG4 |
ACTIVE |
0 to 70 |
3.15 | 1ku |
PDIP (N) | 16 |
25 | TUBE |
UC3770AN |
| UC3770AQ |
ACTIVE |
0 to 70 |
3.15 | 1ku |
PLCC (FN) | 28 |
37 | TUBE |
UC3770AQ |
| UC3770AQTR |
ACTIVE |
0 to 70 |
2.60 | 1ku |
PLCC (FN) | 28 |
750 | LARGE T&R |
UC3770AQ |
UC3770A 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 |
| UC3770AN |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
N/A for Pkg Type |
UC3770AN |
UC3770AN |
| UC3770ANG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
N/A for Pkg Type |
UC3770ANG4 |
UC3770ANG4 |
| UC3770AQ |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
UC3770AQ |
UC3770AQ |
| UC3770AQG4 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
UC3770AQG4 |
UC3770AQG4 |
UC3770A 应用技术支持与电子电路设计开发资源下载
- UC3770A 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)
UC3770A 相关工具
| 名称 |
型号 |
公司 |
工具/软件类型 |
| UC3770A 评估模块 |
UC3770AEVM |
Texas Instruments |
开发电路板/EVM |