Infineon公司的TLE8444SL是四路半橋馬達驅(qū)動IC,四路半橋功率輸出,導通電阻小于1.3歐姆,并行接口控制半橋輸出,反相和同相輸入以減少MC的連接數(shù)量,睡眠模式的功耗很低,不到5uA,3.3V/5V兼容輸入,具有短路,超溫保護以及內(nèi)置診斷特性如過壓和欠壓鎖住,開路檢測等,目標應(yīng)用在單極或雙極負載,步進馬達以及DC有刷馬達.本文介紹TLE8444SL主要特性,方框圖,短路保護和開路檢測簡化電路圖,誤差標識產(chǎn)生電路圖,DC有刷馬達負載應(yīng)用電路以及雙極步
Infine
on公司的
TLE8444
SL是四路半橋馬達驅(qū)動
IC,四路半橋
功率輸出,導通電阻小于1.3歐姆,并行接口控制半橋輸出,反相和同相輸入以減少
MC的連接數(shù)量,睡眠模式的功耗很低,不到5uA,3.3V/5V兼容輸入,具有短路,超溫保護以及內(nèi)置診斷特性如過壓和欠壓鎖住,開路檢測等, 目標應(yīng)用在單極或雙極負載,步進馬達以及DC有刷馬達.本文介紹TLE 8444SL主要特性, 方框圖, 短路保護和開路檢測簡化電路圖, 誤差標識產(chǎn)生電路圖, DC有刷馬達負載應(yīng)用電路以及雙極步進馬達負載應(yīng)用電路.
The TLE 8444SL is a protected Quad-Half-Bridge-IC targeted towards automotive and industrial motion control applications. It is a monolithic die b
ased 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.
TLE 8444SL主要特性:
• 4 Half-Bridge Power Outputs (1.3Ù RDS(ON)
MAX@ Tj=
150°C)
• Mini
mum Overcurrent Shutdown at 0.9A
