L6206 评估板原理图.pdf

EVAL6226QR Demonstration board mounting the L6226Q dual full-bridge driver Data brief Features ■ Operating supply voltage from 8 to 52 V ■ 2.8 A output peak current (1.4 A DC) ■ R 0.73 Ω typ. value @ T = 25 °C DS(on) J ■ Operating frequency up to 100 kHz ■ Programmable high-side overcurrent detection and protection ■ Diagnostic output ■ Paralleled operation ■ Cross conduction protection ■ Thermal shutdown ■ Undervoltage lockout ■ Integrated fast free wheeling diodes Description The L6226Q is a DMOS dual full-bridge designed for motor control applications, realized in BCD multipower technology. The L6226Q features thermal shutdown and a non-dissipative overcurrent detection on the high-side power MOSFETs plus a diagnostic output that can be easily used to implement the overcurrent protection. January 2013 Doc ID 024141 Rev 1 1/8 For further information contact your local STMicroelectronics sales office. 8 Board description EVAL6226QR 1 Board description Table 1. EVAL6226QR electrical specifications (recommended values) Parameter Value Supply voltage range (VS) 8 to 52 Vdc Output current rating (OUTx) up to 1.4 Ar.m.s. Switching frequency up to 100 kHz Input and enable voltage range 0 to + 5