Automotive, Programmable Stepper Driver

Description The A3981 is a flexible microstepping motor driver with built-in translator for easy operation. It is a single-chip solution, designed to operate bipolar stepper motors in full-, half-, quarter- and sixteenth-step modes, at up to 28 V and ±1.4 A. The A3981 can be controlled by simple

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Automotive, Programmable Stepper Driver

Description The A3981 is a flexible microstepping motor driver with built-in translator for easy operation. It is a single-chip solution, designed to operate bipolar stepper motors in full-, half-, quarter- and sixteenth-step modes, at up to 28 V and ±1.4 A. The A3981 can be controlled by simple

文件：943.07 Kbytes 頁數(shù)：42 Pages

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汽車可編程步進驅(qū)動器

A3981 是一款可編程的微步電動機驅(qū)動器，帶有內(nèi)置轉(zhuǎn)換器，易于操作。它采用單芯片解決方案，能夠以全步進、半步進、四分之一及十六分之一步進模式驅(qū)動雙極步進電動機，工作電壓和電流可達 28?V 和 ±750?mA。A3981 可使用簡單的步進和方向輸入或通過 SPI 兼容型接口控制，而且還能用于設(shè)置多種整合功能及讀取診斷信息。\n\n電流調(diào)整器通過編程，能以固定停機時間或固定頻率 PWM 工作，并可通過多種衰減模式降低電動機的可聞噪音和提高步進準(zhǔn)確性。而且，相電流表可以通過串行接口編程，為特定應(yīng)用建立適用的微步進電流分布，進一步提高電動機的性能。\n\n電動機的所有相電流均通過 DMOS 全橋式 ? 典型應(yīng)用 ±750?mA、28?V \n? 自動電流衰減模式檢測/選擇 \n? 同步整流，減少功率耗散 \n? 交叉電流保護 \n? 高溫和低溫警告 \n? SPI 兼容型或簡單的步進和方向運動控制 \n? 通過 SPI 兼容型串行接口提高可配置性 \n;

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Automotive, Programmable Stepper Driver

Description The A3981 is a flexible microstepping motor driver with built-in translator for easy operation. It is a single-chip solution, designed to operate bipolar stepper motors in full-, half-, quarter- and sixteenth-step modes, at up to 28 V and ±1.4 A. The A3981 can be controlled by simple

文件：947.25 Kbytes 頁數(shù)：43 Pages

ALLEGRO

Automotive, Programmable Stepper Driver

The A3981 is a flexible microstepping motor driver with built-in translator for easy operation. It is a single-chip solution, designed to operate bipolar stepper motors in full-, half-, quarter- and sixteenth-step modes, at up to 28?V and ±1.4?A. The A3981 can be controlled by simple Step and Direct \n? Low RDS(on) outputs, 0.5?Ω source and sink, typical \n? Mixed, Fast, and Slow current decay modes \n? Internal OVLO, UVLO, and Thermal Shutdown circuitry \n? Short circuit and open load diagnostics \n? Stall detect features \n? Highly configurable via SPI-compatible serial interface \n;

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Package：28-SOIC（0.173"，4.40mm 寬）裸露焊盤；包裝：管件 功能：驅(qū)動器 - 全集成，控制和功率級 類別：集成電路（IC） 電機驅(qū)動器，控制器 描述：IC MTR DRV BIPOLR 3-5.5V 28TSSOP

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