EVAL6474PD STMicroelectronics

EVAL6474PD Stepper motor driver mounting the L6474 in a high power PowerSO package Data brief Description The EVAL6474PD demonstration board is a microstepping motor driver. In combination with the STEVAL-PCC009V2 communication board and SPIN evaluation software, the board allows the user to investigate all the features of the L6474 device. The 4-layer layout and the PowerSO package allow the highest thermal performance to be obtained. The EVAL6474PD supports the daisy chain configuration making it suitable for the evaluation of the L6474 in multi motor applications. Features Voltage range from 8 V to 45 V Phase current up to 3 A r.m.s. SPI with daisy chain feature Socket for external resonator or crystal FLAG LED indicator Suitable for use in combination with STEVAL- PCC009V2 March 2015 DocID023548 Rev 3 1/11 For further information contact your local STMicroelectronics sales office. www.st.comBoard description EVAL6474PD Board description Table 1. EVAL6474PD specifications Parameter Value Supply voltage (VS) 8 to 45 V Maximum output current (each phase) 3 A r.m.s. Externally supplied: 3.3 V Logic supply voltage (VREG) Internally supplied: 3 V typical Externally supplied: 3.3 V or 5 V Logic interface voltage (VDD) Internally supplied: VREG Low level logic input voltage 0 V (1) High level logic input voltage VDD Operating temperature -25 to +125 C L6474PD thermal resistance junction to ambient 12 C/W typical 1. All logic inputs are 5 V tolerant. Figure 1. Jumper and connector location Power supply connector FLAG LED (8 V - 45 V) (Red) Application referenc e area JP1: VDD supply from SYNC master SPI connector output JP3: Daisy chain termination JP5: DIR to slave board Master SPI Slave SPI connector connector JP6: STCK to slave board JP2: VDD to VREG connection OSCIN/OSCOUT connector Phase A connector Phase B connector AM14866v1 2/11 DocID023548 Rev 3