Datenbogen (EVAL6227PD)Inhaltsverzeichnis1 Block diagram3Figure 1. Block diagram32 Maximum ratings4Table 1. Absolute maximum ratings4Table 2. Recommended operating conditions4Table 3. Thermal data53 Pin connections6Figure 2. Pin connections (top view)6Table 4. Pin description64 Electrical characteristics8Table 5. Electrical characteristics (Tamb = 25 °C, Vs = 48 V, unless otherwise specified)8Figure 3. Switching characteristic definition9Figure 4. Overcurrent detection timing definition105 Circuit description115.1 Power stages and charge pump11Table 6. Charge pump external components values11Figure 5. Charge pump circuit115.2 Logic inputs11Figure 6. Logic inputs internal structure12Figure 7. ENA and ENB pins open collector driving12Figure 8. ENA and ENB pins push-pull driving12Table 7. Truth table136 PWM current control14Figure 9. PWM current controller simplified schematic14Figure 10. Output current regulation waveforms15Figure 11. tOFF versus COFF and ROFF17Figure 12. Area where tON can vary maintaining the PWM regulation177 Slow decay mode18Figure 13. Slow decay mode output stage configurations187.1 Non-dissipative overcurrent protection18Figure 14. Overcurrent protection simplified schematic19Figure 15. Overcurrent protection waveforms20Figure 16. tDISABLE versus CEN and REN (VDD = 5 V)20Figure 17. tDELAY versus CEN (VDD = 5 V)217.2 Thermal protection218 Application information22Table 8. Component values for typical application22Figure 18. Typical application238.1 Output current capability and IC power dissipation24Figure 19. IC power dissipation versus output current with one full bridge ON at a time24Figure 20. IC power dissipation versus output current with two full bridges ON at the same time248.2 Thermal management25Figure 21. Mounting the PowerSO package25Figure 22. PowerSO36 junction ambient thermal resistance versus on-board copper area25Figure 23. PowerDIP24 junction ambient thermal resistance versus on-board copper area26Figure 24. SO24 junction ambient thermal resistance versus on-board copper area269 Package information27Figure 25. PowerSO36 package outline27Table 9. PowerSO36 package mechanical data28Figure 26. PowerDIP24 package outline29Table 10. PowerDIP24 package mechanical data29Figure 27. SO24 package outline30Table 11. SO24 package mechanical data3010 Revision history31Table 12. Document revision history31Größe: 628 KBSeiten: 32Language: EnglishHandbuch öffnen