Part # Application Note Motor Control EVAL6206PD L6205 L6206 L6207 EVAL6205N EVAL6206N EVAL6207N AN1762 datasheet

Part Manufacturer: ST Microelectronics

ST Microelectronics

Part Description: L6205, L6206, L6207 DUAL FULL BRIDGE DRIVERS


Part Details:

AN1762 APPLICATION NOTE L6205, L6206, L6207 DUAL FULL BRIDGE DRIVERS by Vincenzo Marano Modern motion control applications need more flexibility that can be addressed only with specialized IC products. The L6205, L6206, L6207 are dual full bridge drivers ICs specifically developed to drive a widerange of motors. These ICs are one-chip cost effective solutions that include several unique circuit designfeatures. These features allow the devices to be used in many applications including DC and stepper motordriving. The principal aim of this development project was to produce easy to use, fully protected power ICs.In addition several key functions such as protection circuit and PWM current control drastically reduce exter-nal components count to meet requirements for many different applications. 1 INTRODUCTION The L6205, L6206, L6207 are highly integrated, mixed-signal power ICs that allow the user to easily design acontrol system for two-phase bipolar stepper motors, multiple DC motors and a wide range of inductive loads.Figure 1 to Figure 3 show the L6205, L6206, L6207 block diagrams. Each IC integrates eight Power DMOS plusother added features for safe operation and flexibility. The L6207 also features a constant tOFF PWM currentcontrol technique (Synchronous mode) for each of the two full bridges. Figure 1. L6205 block diagram. VBOOT VBOOT VSA VBOOT VBOOT VCP CHARGE PUMP OVER OCD CURRENT A DETECTION OUT1A OUT2A THERMAL 10V 10V PROTECTION EN GATE A LOGIC IN1A SENSEA IN2A 10V VOLTAGE REGULATOR 5V BRIDGE A OVER CURRENT OCDB DETECTION VSB OUT1B GATE OUT2B ENB LOGIC SENSEB IN1B IN2B BRIDGE B


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Application Note Motor Control EVAL6206PD L6205 L6206 L6207 EVAL6205N EVAL6206N EVAL6207N AN1762.pdf Datasheet