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.
●Summary of 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
●Benefits:
● 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
