TLE5250

2.5-A High Performance Smart Power Stepper-Motor Driver with Diagnostic Interface TLE 5250 SPT-IC Overview Features Single phase driver for stepper motor 2.5 A Low ON-resistance (typical 0.3 Ω) Wide supply range 6 V to 45 V Wide current range 10 mA to 3 A Fast nominal/actual comparator for micro stepper mode Wide temperature range Short circuit protection Under voltage shutdown Overtemperature shutdown Serial diagnostic interface Fast freewheeling diodes TTL-compatible inputs P-SIP-15-1 Type TLE 5250 Description Ordering Code Q67000-A9103 Package P-SIP-15-1 TLE 5250 is a monolithic IC in Smart Power technology for controlling and regulating the motor current in one phase of a bipolar stepping motor. There are other applications in driving DC motors and inductive loads that are operated on constant current. The device has TTL-compatible logic inputs, includes a H-bridge with integrated, fast free-wheeling diodes plus dynamic limiting of the motor current by a chopper mode. The nominal current can be set continuously by a control voltage. Microstep mode can be produced by applying a sinusoidal control voltage. Two TLE 5250s, with a minimum of external circuitry and a single supply voltage, form a complete system - that can be driven direct by an MC- for two-phase, bipolar stepping motors with output current of up to 2.5 A per phase. The outputs of the IC are internally protected against shorted to ground, supply voltage and shorted load. The outpu...