L6258

Pinout




Specifications

Symbol	Parameter	Value	Unit
Vs	Supply Voltage	50	V
VCC	Logic Supply Voltage	7	V
Vref1/Vref2	Reference Voltage	2.5	V
IO	Output Current (peak)	2	A
IO	Output Current (continuous)	1.5	A
Vin	Logic Input Voltage Range	-0.3 to 7	V
Vboot	Bootstrap Supply	60	V
Vboot - Vs	Maximum Vgate applicable	15	V
Tj	Junction Temperature	150	°C
Tstg	Storage Temperature Range	-55 to 150	°C

Description

L6258 is a dual full bridge for motor control appli-
cations realized in BCD technology, with the ca- pability of driving both windings of a bipolar step- per motor or bidirectionally control two DC motors.

L6258 and a few external components form a complete control and drive circuit. L6258 has high effi- ciency 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 power stage is a dual DMOS full bridge capa- ble of sustaining up to 45V, and includes the di- odes for current recirculation.

The output current capability is 1.5A per winding in continuous mode, with peak start-up current up to 2A.

A thermal protection circuitry disables the outputs if the chip temperature exceeds the safe limits.