DRV8845: 38 V, 1.5 A Quad H-Bridge Motor Driver with Smart Tune Technology

1 Features • Integrates four H-bridges • Can drive different configurations - – Two stepper motors – Four brushed-DC motors – Three brushed-DC motors – One stepper and two brushed-DC motors – One stepper and one brushed-DC motor • Footprint and software compatible with similar drivers fro

文件：1.55808 Mbytes 页数：30 Pages

TI

德州仪器

DRV8849: 38 V, 1.5 A Dual Stepper Driver with Integrated Current Sense, 1/256 Microstepping, STEP/DIR Interface and Smart Tune

1 Features • Dual stepper motor driver – STEP/DIR interface – Up to 1/256 microstepping indexer • 4.5 to 38-V Operating supply voltage range • 900 mΩ HS + LS RDS(ON) at 24 V, 25°C • 1.5 A full-scale, 1.1 A rms current per H-bridge • Integrated current sense functionality – No sense resisto

文件：1.41742 Mbytes 页数：35 Pages

TI

德州仪器

丝印：DRV8845；Package：VQFN；DRV8845: 38 V, 1.5 A Quad H-Bridge Motor Driver with Smart Tune Technology

1 Features • Integrates four H-bridges • Can drive different configurations - – Two stepper motors – Four brushed-DC motors – Three brushed-DC motors – One stepper and two brushed-DC motors – One stepper and one brushed-DC motor • Footprint and software compatible with similar drivers fro

文件：1.55808 Mbytes 页数：30 Pages

TI

德州仪器

采用智能调优技术的 35V、1.5A 四路 H 桥电机驱动器

DRV8845 是适用于各种工业应用的四路全桥驱动器。该器件可用于驱动最多两个步进电机或最多四个有刷直流电机。每个全桥输出的额定电流高达 1.5A 和 38V。DRV8845 包括脉宽调制 (PWM) 电流调节器以及 2 位非线性 DAC（数模转换器），可实现步进电机的全步长、半步长和四分之一步长模式控制以及直流电机的正转、反转和滑行模式控制。\n\nPWM 电流调节器使用智能调优衰减模式来降低电机可闻噪声和振动，提高精度并降低功率耗散。提供了内部同步整流控制电路以改善 PWM 操作期间的功率耗散。\n\n保护功能包具有迟滞功能的热关断 (OTSD)、欠压锁定 (UVLO) 和过流保护 (OC

TI

德州仪器