描述 Description

The TLE 8444SL is a protected Quad-Half-Bridge-IC targeted towards automotive and industrial motion control applications. It is a monolithic die based on Infineon’s smart mixed technology SPT which combines bipolar and CMOS control circuitry with DMOS power devices. DC-Motors can be driven in forward (cw), reverse (ccw), brake and high impedance modes where as Stepper- Motors can be driven in No-Current, negative / positive output current modes. These various modes can easily be achieved via standard parallel interface of the device to a microcontroller. The PG-SSOP-24-7 package is advantageous as it saves PCB-board space and costs. The integrated short circuit and over-temperature protection as well as it’s built-in diagnosis features such as over- and under voltage-lockout and open load detection improves system reliability and performance.

特性 Features

? 4 Half-Bridge Power Outputs (1.3Ω RDS(ON)MAX @ Tj=150°C)

? Minimum Overcurrent Shutdown at 0.9A

? Simple parallel interface control of Half-Bridge Outputs

? Inverted and Non-inverted Inputs to minimize number of microcontroller connections

? Very low current consumption in sleep mode (max. 5μA)

? Error Flag Diagnosis

? Open Load Diagnosis in ON-state for all outputs

? Outputs protected against overcurrent

? Over temperature protection with hysteresis

? Over and Under voltage lockout

? 3.3V / 5V compatible inputs with hysteresis

? No crossover current

? Internal freewheeling diodes

? Thermally enhanced package (fused leads)

? Green Product (RoHS compliant)

? AEC Qualified

優(yōu)勢(shì):
? Small package helps to save PCB area

? Improved diagnosis for over- and under voltage-lockout and open load detection improve system reliabiltiy and performance

? The device also supports stepper motor applications

應(yīng)用 Application

? DC motors in automotive and industrial applications

? Stepper Motors in automotive and industrial applications (e.g. Idle speed control for small cars or motor bike)

簡(jiǎn)介

TLE8444SL屬于集成電路（IC）的電機(jī)驅(qū)動(dòng)器控制器。由制造生產(chǎn)的TLE8444SL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(jiǎn)單開環(huán)速度控制到基于步進(jìn)電機(jī)的高級(jí)閉環(huán)運(yùn)動(dòng)控制。