L6460TR STMicroelectronics

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 = 0.60 ) can be DSon TQFP64 exposed pad configured to work as: Dual full bridge driver Super DC driver Auxiliary features 2 half bridge driver Multi-channels 9 bit ADC 1 super half bridge 2 operational amplifiers 2 power switches Digital comparator 1 super power switch 2 low voltage power switches Bridge 3 and 4 (R = 0.85 ) can be DSon 3 general purpose PWM generators configured to work as: 14 GPIOs Same as bridges 1 and 2, listed above Stepper motor driver: up to 1/16 Description microstepping 2 buck regulators (bridge 3) The L6460 is optimized to control and drive multi- 1 super buck regulator motor system providing a unique level of Battery charger (bridge 4) integration in term of control, power and auxiliary features. Thanks to the high configurability L6460 Power supply management can be customized to drive different motor One switching buck regulator architectures and to optimize the number of One switching regulator controller embedded features, such as the voltage One linear regulator regulators, the high precision A/D converter, the One battery charger operational amplifier and the voltage comparators. The possibility to drive Fully protected through simultaneously stepper and DC motor makes Thermal warning and shutdown L6460 the ideal solution for all the application Overcurrent protection featuring multi motors. Undervoltage lock-out Table 1. Device summary SPI interface Programmable watchdog function Order code Package Packing Integrated power sequencing and supervisory L6460 Tray functions with fault signaling through serial TQFP64 L6460TR Tape and reel interface and external reset pin Very low power dissipation in shut-down mode (~35 mW) July 2010 Doc ID 17713 Rev 1 1/139 www.st.com 139 Obsolete Product(s) - Obsolete Product(s) Contents L6460 Contents 1 General description . 10 1.1 Overview . 10 1.2 Pin connection . 11 1.3 Pin list 12 2 L6460s main features . 14 3 Electrical specifications . 16 3.1 Absolute maximum rating . 16 3.2 Operating ratings specifications 16 3.3 Electrical characteristics 17 4 Internal supplies . 30 4.1 V regulator 30 SupplyInt 4.2 Charge pump regulator 31 4.3 V3v3 regulator . 31 5 Supervisory system 32 5.1 Power on reset (POR) circuit 32 5.2 nRESET generation circuit 32 5.3 Thermal shut down generation circuit . 35 6 Watchdog circuit . 36 7 Internal clock oscillator . 38 8 Start-up configurations . 39 8.1 Operation modes . 39 8.2 Basic device mode 40 8.3 Slave device mode 41 8.4 Master device mode . 41 8.5 Single device mode . 41 8.6 Sub-configurations for slave, master or single device modes . 41 2/139 Doc ID 17713 Rev 1 Obsolete Product(s) - Obsolete Product(s)