STMicroelectronics L6258
L6258 is a dual full bridge for motor control applications realized in BCD technology, with the capability of driving both windings of a bipolar stepper motor or bidirectionally control two DC motors. It has high efficiency phase shift chopping that allows a very low current ripple at the lowest current control levels, and makes this device ideal for steppers as well as for DC motors. The output current capability is 1.2A per winding in continuous mode, with peak start-up current up to 1.5A.FEATURES
● Able to drive both windings of a bipolar stepper motor or two DC motors● Output current up to 1.2A each winding
● Wide voltage range: 12V to 34V
● Four quadrant current control, ideal for microstepping and DC motor control
● Precision PWM control
● No need for recirculation diodes
● TTL/CMOS compatible inputs
● Cross conduction protection
● Thermal shutdow
DESCRIPTION
L6258 and a few external components form a complete control and drive circuit. PowerSO36 The power stage is a dual DMOS full bridge capable of sustaining up to 34V, and includes the diodes for current recirculation. A thermal protection circuitry disables the outputs if the chip temperature exceeds the safe limits. Table 1. Device summary Order Code L6258 (Replaced by E-L6258EX and E- L6258EXTR) Package PowerSO36 Packing Tube March 2010 Doc ID 4588 Rev 10 This is information on a product still in production but not recommended for new designs. 1/32 1 Contents Contents L6258 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .