产品概述
描述
The L297 Stepper Motor Controller IC generates four phase drive signals for two phase bipolar and four phase unipolar step motors in microcomputer-controlled applications. The motor can be driven in half step, normal and wawe drive modes and on-chip PWM chopper circuits permit switch-mode control of the current in the windings. A feature of this device is that it requires only clock, direction and mode input signals. Since the phase are generated internally the burden on the microprocessor, and the programmer, is greatly reduced. Mounted in DIP20 and SO20 packages, the L297 can be used with monolithic bridge drives such as the L298N or L293E, or with discrete transistors and darlingtons.
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所有功能
- RESET INPUT & HOME OUTPUT
- FEW EXTERNAL COMPONENTS
- NORMAL/WAVE DRIVE
- CLOCKWISE/ANTICLOCKWISE DIRECTION
- HALF/FULL STEP MODES
- PROGRAMMABLE LOAD CURRENT
- ENABLE INPUT
- SWITCHMODE LOAD CURRENT REGULATION
电路原理图
EDA符号、封装和3D模型
STMicroelectronics - L297
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符号
封装
3D模型
质量与可靠性
| 产品型号 | Marketing Status | 封装 | 等级规格 | 符合RoHS级别 | 材料声明** |
|---|---|---|---|---|---|
| L297/1 | 批量生产 | PDIP 20 | 工业 | Ecopack1 | |
| L297D | 批量生产 | SO-20 | 工业 | Ecopack1 | |
| L297D013TR | 批量生产 | SO-20 | 工业 | Ecopack1 | |
L297/1
Package:
PDIP 20Material Declaration**:
L297D
Package:
SO-20Material Declaration**:
L297D013TR
Package:
SO-20Material Declaration**:
(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持。
样片和购买
| 产品型号 | Order from distributors | 从ST订购 | 供货状态 | ECCN (US) | ECCN (EU) | 包装类型 | 封装 | 温度（ºC） | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小值 | 最大值 | |||||||||||
| L297/1 | distributors 无法联系到经销商，请联系我们的销售办事处 | 批量生产 | EAR99 | NEC | Tube | PDIP 20 | -40 | 150 | MALAYSIA | | ||
| L297D013TR | distributors 无法联系到经销商，请联系我们的销售办事处 | 批量生产 | EAR99 | NEC | Tape and Reel | SO-20 | -40 | 150 | MALAYSIA | | ||
| L297D | distributors 无法联系到经销商，请联系我们的销售办事处 | 批量生产 | EAR99 | NEC | Tube | SO-20 | -40 | 150 | MALAYSIA | | ||