EVAL6235PD STMicroelectronics

EVAL6235PD L6235 three-phase brushless DC motor driver demonstration board Data brief Features Operating supply voltage from 8 V to 52 V 5.6 A output peak current (2.8 A ) RMS Operating frequency up to 100 kHz Non-dissipative overcurrent protection Constant off-time PWM current controller 60 and 120 Hall effect decoding logic Brake function TACHO output for speed loop Suitable for EVALPRACTISPIN control Capable of running in stand-alone mode Description The EVAL6235PD demonstration board is a fully integrated DMOS three-phase brushless DC motor driver. Used in conjunction with the EVALPRACTISPIN interface board and practiSPIN software, the board provides an evaluation platform to test the features of the L6235 device. In particular, the board provides a means to evaluate the power dissipation performance of the IC in the PowerSO package. An example of speed loop is implemented. The speed information is obtained by analog integration of the TACHO output. Fine tuning of external components is needed to fit application requirements. The board is designed with a large GND area to minimize noise and optimize power dissipation. August 2011 Doc ID 022128 Rev 1 1/10 For further information contact your local STMicroelectronics sales office. www.st.com 10 Obsolete Product(s) - Obsolete Product(s)Board description EVAL6235PD 1 Board description The EVAL6235PD provides external connectors for the supply voltage, an external 5 V reference for the logic inputs, three outputs for the motor and a 34-pin connector to control the main functions of the board through the external interface board EVALPRACTISPIN. Figure 1. EVAL6235PD demonstration board Table 1. EVAL6235PD: connector and jumper description Name Type Function CN1 Power supply Board power supply (VS) CN2 Power supply Logic power supply (5V) CN3 Power outputs Half-bridge power outputs CN4 Signal connector Communication with interface board JP1, JP2 Jumper On-board 5V supply generation (closed) J1 Strip connector Hall effect sensors signals and power supply Allows enabling of the IC, to select to run in torque or speed mode, to S1 DIP switches (1) set the motor direction and motor braking 1. Function available if board is running in stand-alone mode. 2/10 Doc ID 022128 Rev 1 Obsolete Product(s) - Obsolete Product(s)