PT2463 PWM Constant-Current Stepping Motor Driver DESCRIPTION FEATURES The PT2463 is a motor driver designed for 2 phase stepping motor, it implement PWM to regulate output current. The driver stage is consists by dual MOSFET Hbridge. Fabricated by advanced BCD process to improve performance and reduce power losses. The driver support up to 40V supply voltage and maximum driving current up to 1.8A. • Low RDS(on) BCD process • PWM constant-current drive • Provides phase inputs to allow full step and half step excitation • High voltage and current: 40V/1.8A • Thermal shutdown (TSD), over-current shutdown (ISD), power-on reset (POR) and under voltage lock out (UVLO) helps to secure operates status. • HTSSOP 28-Pin package with thermal pad The on-chip voltage regulator allows only powered from a single power supply, VM, it highly reduce external components and saving the PCB size. APPLICATIONS • Home appliance • Amusement machine • Office automation machine RSB OUTB+ OUTB+ PGND OUTB- OUTB- PGND RSA RSA OUTA+ OUTA+ PGND OUTA- OUTA- VM ENABLE_B RSB VDD ENABLE_A LGND LGND PHASE_B VHS VREFB PHASE_A STBX VREFA OSCM BLOCK DIAGRAM Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan PT2463 APPLICATION CIRCUIT DIAGRAM VM 100μF Vref 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 PHASE_A PHASE_B ENABLE_A ENABLE_B STBX 3.6kΩ 0.5Ω 0.1μF 0.1μF 0.1μF 270pF V1.0 2 0.5Ω December 2012 PT2463 ORDER INFORMATION Part Number PT2463-HT Package Type 28-Pin, HTSSOP, 173MIL Top Code PT2463-HT PIN CONFIGURATION V1.0 3 December 2012 PT2463 IMPORTANT NOTICE Princeton Technology Corporation (PTC) reserves the right to make corrections, modifications, enhancements, improvements, and other changes to its products and to discontinue any product without notice at any time. PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No circuit patent licenses are implied. Princeton Technology Corp. 2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan Tel: 886-2-66296288 Fax: 886-2-29174598 http://www.princeton.com.tw V1.0 15 December 2012