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Infineon TLE8444SL a protected quad-half-bridge-IC

The TLE 8444SL is a protected Quad-Half-Bridge-IC targeted towards automotive and industrial motion control applications

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.

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

Additional features

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