Ficha De Dados (EVAL6227QR)índice analíticoFigure 1. Block diagram11 Electrical data31.1 Absolute maximum ratings3Table 1. Absolute maximum ratings31.2 Recommended operating conditions3Table 2. Recommended operating conditions31.3 Thermal data4Table 3. Thermal data42 Pin connection5Figure 2. Pin connection (top view)5Table 4. Pin description63 Electrical characteristics7Table 5. Electrical characteristics (TA = 25 C, Vs = 48 V, unless otherwise specified)7Figure 3. Switching characteristic definition9Figure 4. Overcurrent detection timing definition94 Circuit description104.1 Power stages and charge pump10Table 6. Charge pump external components values10Figure 5. Charge pump circuit104.2 Logic inputs11Figure 6. Logic inputs internal structure11Figure 7. ENA and ENB pins open collector driving11Figure 8. ENA and ENB pins push-pull driving114.3 Truth table12Table 7. Truth table124.4 PWM current control12Figure 9. PWM current controller simplified schematic12Figure 10. Output current regulation waveforms13Figure 11. tOFF versus COFF and ROFF14Figure 12. Area where tON can vary maintaining the PWM regulation154.5 Slow decay mode15Figure 13. Slow decay mode output stage configurations154.6 Non-dissipative overcurrent protection16Figure 14. Overcurrent protection simplified schematic16Figure 15. Overcurrent protection waveforms17Figure 16. tDISABLE versus CEN and REN (VDD = 5 V)17Figure 17. tDELAY versus CEN (VDD = 5 V)184.7 Thermal protection185 Application information19Table 8. Component values for typical application19Figure 18. Typical application206 Output current capability and IC power dissipation21Figure 19. IC power dissipation vs output current with one full bridge ON at a time21Figure 20. IC power dissipation versus output current with two full bridges ON at the same time217 Thermal management228 Package mechanical data23Table 9. VFQFPN32 5x5x1.0 pitch 0.5023Figure 21. Package dimensions249 Order codes25Table 10. Order code2510 Revision history26Table 11. Document revision history26Tamanho: 400 KBPáginas: 27Language: EnglishAbrir o manual
