Smart, simple solutions for the 12 most common design concerns

文件：727.81 Kbytes 頁數(shù)：8 Pages

恩XP

Fm I2C-bus advanced stepper motor controller

文件：1.35911 Mbytes 頁數(shù)：59 Pages

恩XP

Fm+ I2C-bus advanced stepper motor controller

The PCA9629A is an I2C-bus controlled low-power CMOS device that provides all thelogic and control required to drive a four phase stepper motor. PCA9629A is intended tobe used with external high current drivers to drive the motor coils. The PCA9629Asupports three stepper motor drive formats: one-pha ? Generate motor coil drive phase sequence signals with four outputs for use withexternal high current drivers to off-load CPU\n? Four balanced push-pull type outputs capable of sinking 25 mA or sourcing 25 mA forglueless connection to external high current drivers needed to drive unipolar steppermo;

恩XP

Fm+ I2C總線步進(jìn)電機(jī)控制器

PCA9629是一款I(lǐng)2C總線控制的低功率CMOS器件，提供驅(qū)動(dòng)一個(gè)四相位步進(jìn)電機(jī)所需的所有邏輯和控制。PCA9629是為配合外部高電流驅(qū)動(dòng)器使用以驅(qū)動(dòng)電機(jī)線圈而設(shè)計(jì)。PCA9629支持三種步進(jìn)電機(jī)驅(qū)動(dòng)格式：?jiǎn)蜗啵ú?qū)動(dòng)）、兩相和半步進(jìn)此外，當(dāng)用作輸入時(shí)，四個(gè)通用輸入/輸出(GPIO)允許感應(yīng)來自光中斷器模塊的邏輯電平輸出并在PCA9629的INT引腳上生成低電平有效的中斷信號(hào)。在感應(yīng)電機(jī)軸原始位置或步進(jìn)參考脈沖時(shí)，此功能很有用。中斷時(shí)，可對(duì)PCA9629進(jìn)行編程以自動(dòng)停止電機(jī)或反轉(zhuǎn)電機(jī)的旋轉(zhuǎn)方向。\n使用控制寄存器可對(duì)輸出波列進(jìn)行編程。通過 I2C總線可對(duì)控制寄存器進(jìn)行編程。PCA9629的 使用四個(gè)輸出生成電機(jī)線圈驅(qū)動(dòng)相位序列信號(hào)以使用外部高電流驅(qū)動(dòng)器，使CPU沒有負(fù)載\n四個(gè)平衡的推挽式輸出能灌入25 mA或拉出25 mA，用于無縫連接驅(qū)動(dòng)電機(jī)線圈所需的外部高電流驅(qū)動(dòng)器具有100 ns上升和下降時(shí)間的最大1000 pF負(fù)載\n\n內(nèi)置振蕩器無需外部組件\n步進(jìn)電機(jī)驅(qū)動(dòng)控制邏輯\n單相（波驅(qū)動(dòng)）、兩相和半步驅(qū)動(dòng)格式的邏輯電平輸出\n可編程步進(jìn)速率：344.8 kpps至0.3 pps，±5 %的精度\n可編程緩升啟動(dòng)和緩降停止\n可編程步進(jìn)和旋轉(zhuǎn)控制\n通過傳感器啟用的驅(qū)動(dòng)控制：與I/O引腳的中斷鏈接\n電機(jī)軸的方向控制\n電機(jī)軸的可選擇主動(dòng)保持、電源關(guān)閉或釋放狀態(tài)\n四;

恩XP