Power Electronics / Power Management


Rugged H-bridge for 'smart' motor control

11 February 2004 Power Electronics / Power Management

The TLE 7209R is an intelligent full H-bridge from Infineon Technologies that is designed for the control of DC and stepper motors in safety-critical applications and in extreme environmental conditions. The H-bridge is protected against overtemperature and short circuits and has an undervoltage lockout for all the supply voltages 'Vs' (main DC power supply). All malfunctions cause the output stages to go tristate. Key features: operating supply voltage of 5 to 28 V; typical RDson = 150 mΩ for each output transistor (at 25°C); diagnostics by SP or status flag; output current limitation at typically 6,6 A ±1,1 A; short-circuit shutdown for output currents over 8 A.



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