UCC3626
- Two-Quadrant and Four-Quadrant Operation
- Integrated Absolute Value Current Amplifier
- Pulse-by-Pulse and Average Current Sensing
- Accurate, Variable Duty-Cycle Tachometer Output
- Trimmed Precision Reference
- Precision Oscillator
- Direction Output
The UCC3626 motor controller device combines many of the functions required to design a high-performance, two- or four-quadrant, three-phase, brushless dc motor controller into one package. Rotor position inputs are decoded to provide six outputs that control an external power stage. A precision triangle oscillator and latched comparator provide PWM motor control in either voltage- or current-mode configurations. The oscillator is easily synchronized to an external master clock source via the SYNCH input. Additionally, a QUAD select input configures the chip to modulate either the low-side switches only, or both upper and lower switches, allowing the user to minimize switching losses in less demanding two-quadrant applications.
The device includes a differential current-sense amplifier and absolute-value circuit which provide an accurate reconstruction of motor current, useful for pulse-by-pulse overcurrent protection, as well as closing a current control loop. A precision tachometer is also provided for implementing closed-loop speed control. The TACH_OUT signal is a variable duty-cycle, frequency output, which can be used directly for digital control or filtered to provide an analog feedback signal. Other features include COAST, BRAKE, and DIR_IN commands, along with a direction output, DIR_OUT.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | Brushless DC Motor Controller 数据表 (Rev. B) | 2001年 6月 1日 | |||
应用手册 | U-120 A Simplified Approach to DC Motor Modeling for Dynamic Stability Analysis | 1999年 9月 5日 |
设计和开发
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封装 | 引脚 | 下载 |
---|---|---|
SOIC (DW) | 28 | 查看选项 |
TSSOP (PW) | 28 | 查看选项 |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
- 制造厂地点
- 封装厂地点