EVAL6229QR STMicroelectronics

EVAL6229QR Demonstration board mounting the L6229Q dual full-bridge driver Data brief Features Operating supply voltage from 8 to 52 V 2.8 A output peak current (1.4 A ) r.m.s. R 0.73 typ. value T = 25 C DS(on) J Operating frequency up to 100 kHz Non-dissipative overcurrent detection and protection Diagnostic output Constant t PWM current controller OFF Slow decay synchronous rectification 60 and 120 hall effect decoding logic Brake function Cross conduction protection Thermal shutdown Undervoltage lockout Integrated fast free wheeling diodest Description The L6229Q is a DMOS fully integrated three- phase motor driver with overcurrent protection, realized in BCD multipower technology. The device includes all the circuitry needed to drive a three-phase BLDC motor including: a three-phase DMOS bridge, a constant off-time PWM current controller and the decoding logic for single ended hall sensors that generates the required sequence for the power stage. The L6229Q features a non-dissipative overcurrent protection on the high-side power MOSFETs and thermal shutdown. January 2013 Doc ID 024135 Rev 1 1/8 For further information contact your local STMicroelectronics sales office. www.st.com 8Board description EVAL6229QR 1 Board description Table 1. Electrical specifications (recommended values) Parameter Value Supply voltage range (VS) 8 to 52 V Output current rating (OUTx) up to 1.4 A r.m.s. Switching frequency up to 100 kHz Voltage reference range (VREF) 0 to + 5 V Input and enable voltage range 0 to + 5 V L6229Q thermal resistance junction-to-ambient 42 C/W Figure 1. EVAL6229QR demonstration board description 2/8 Doc ID 024135 Rev 1