L6219DSTR-T集成電路（IC）的電機(jī)驅(qū)動(dòng)器控制器規(guī)格書PDF中文資料

L6219DSTR-T屬于集成電路（IC）的電機(jī)驅(qū)動(dòng)器控制器。由Allegro MicroSystems制造生產(chǎn)的L6219DSTR-T電機(jī)驅(qū)動(dòng)器，控制器產(chǎn)品屬于電機(jī)驅(qū)動(dòng)器和控制器電源管理集成電路 (PMIC) 系列，可用于控制或操作從某電源施加到電機(jī)或相關(guān)機(jī)電執(zhí)行器的電源。所實(shí)現(xiàn)的具體功能和特性集根據(jù)預(yù)期負(fù)載和預(yù)期應(yīng)用的特性有很大差異，范圍從用于有刷電機(jī)的簡單開環(huán)速度控制到基于步進(jìn)電機(jī)的高級閉環(huán)運(yùn)動(dòng)控制。

Description

The L6219DS motor driver is designed to drive both windings of a bipolar stepper motor or bidirectionally control two DC motors. Both bridges are capable of sustaining 45 V and include internal pulse-width modulation (PWM) control of the output current to 750 mA. The outputs have been optimized for a low output saturation voltage drop (less than 1.8 V total source plus sink at 500 mA).

For PWM current control, the maximum output current is determined by user selection of a reference voltage and sensing resistor. Two logic-level inputs select output current limits of 0, 33, 67, or 100 of the maximum level. A PHASE input to each bridge determines load current direction.

The bridges include both ground clamp and flyback diodes for protection against inductive transients. Internally generated delays prevent crossover currents when switching current direction. Special power-up sequencing is not required. Thermal protection circuitry disables the outputs if the chip temperature exceeds safe operating limits.

The L6219DS is supplied in a 24-pin surface-mountable SOIC, with 4 internally-fused leads for maximum package power dissipation in the smallest possible construction. It is lead (Pb) free with 100 matte tin leadframe plating.

Features and Benefits

? Interchangeable with SGS L6219DS

? 750 mA Continuous Output Current

? 45 V Output Sustaining Voltage

? Internal Clamp Diodes

? Internal PWM Current Control

? Low Output Saturation Voltage

? Internal Thermal Shutdown Circuitry

? Similar to Dual PBL3717, UC3770