L6460 Datasheet, PDF (1/139 Pages) STMicroelectronics – SPI configurable stepper and DC multi motor driver

L6460
SPI configurable stepper and DC multi motor driver
Features
■ Operating supply voltage from 13 V to 38 V
■ 4 full bridge driver configurable in multi-motor
application to drive:
– 2 DC and 1 stepper motor
– 4 DC motor
■ Bridge 1 and 2 (R_DSon = 0.60 Ω) can be
configured to work as:
– Dual full bridge driver
– Super DC driver
– 2 half bridge driver
– 1 super half bridge
– 2 power switches
– 1 super power switch
■ Bridge 3 and 4 (R_DSon = 0.85 Ω) can be
configured to work as:
– Same as bridges 1 and 2, listed above
– Stepper motor driver: up to 1/16
microstepping
– 2 buck regulators (bridge 3)
– 1 super buck regulator
– Battery charger (bridge 4)
■ Power supply management
– One switching buck regulator
– One switching regulator controller
– One linear regulator
– One battery charger
■ Fully protected through
– Thermal warning and shutdown
– Overcurrent protection
– Undervoltage lock-out
■ SPI interface
■ Programmable watchdog function
■ Integrated power sequencing and supervisory
functions with fault signaling through serial
interface and external reset pin
■ Very low power dissipation in shut-down mode
(~35 mW)
TQFP64 exposed pad
■ Auxiliary features
– Multi-channels 9 bit ADC
– 2 operational amplifiers
– Digital comparator
– 2 low voltage power switches
– 3 general purpose PWM generators
– 14 GPIOs
Description
The L6460 is optimized to control and drive multi-
motor system providing a unique level of
integration in term of control, power and auxiliary
features. Thanks to the high configurability L6460
can be customized to drive different motor
architectures and to optimize the number of
embedded features, such as the voltage
regulators, the high precision A/D converter, the
operational amplifier and the voltage
comparators. The possibility to drive
simultaneously stepper and DC motor makes
L6460 the ideal solution for all the application
featuring multi motors.
Table 1. Device summary
Order code
Package
L6460
L6460TR
TQFP64
Packing
Tray
Tape and reel
July 2010
Doc ID 17713 Rev 1
1/139
www.st.com
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