STMicroelectronics Demonstration board using a dual full-bridge L6227Q EVAL6227QR Manuales de usuario

Tabla de contenidos

• Figure 1. Block diagram

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• 1 Electrical data

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  • 1.1 Absolute maximum ratings

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    • Table 1. Absolute maximum ratings

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  • 1.2 Recommended operating conditions

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    • Table 2. Recommended operating conditions

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  • 1.3 Thermal data

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    • Table 3. Thermal data

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• 2 Pin connection

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  • Figure 2. Pin connection (top view)

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  • Table 4. Pin description

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• 3 Electrical characteristics

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  • Table 5. Electrical characteristics (TA = 25 C, Vs = 48 V, unless otherwise specified)

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  • Figure 3. Switching characteristic definition

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  • Figure 4. Overcurrent detection timing definition

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• 4 Circuit description

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  • 4.1 Power stages and charge pump

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    • Table 6. Charge pump external components values

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    • Figure 5. Charge pump circuit

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  • 4.2 Logic inputs

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    • Figure 6. Logic inputs internal structure

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    • Figure 7. ENA and ENB pins open collector driving

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    • Figure 8. ENA and ENB pins push-pull driving

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  • 4.3 Truth table

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    • Table 7. Truth table

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  • 4.4 PWM current control

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    • Figure 9. PWM current controller simplified schematic

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    • Figure 10. Output current regulation waveforms

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    • Figure 11. tOFF versus COFF and ROFF

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    • Figure 12. Area where tON can vary maintaining the PWM regulation

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  • 4.5 Slow decay mode

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    • Figure 13. Slow decay mode output stage configurations

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  • 4.6 Non-dissipative overcurrent protection

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    • Figure 14. Overcurrent protection simplified schematic

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    • Figure 15. Overcurrent protection waveforms

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    • Figure 16. tDISABLE versus CEN and REN (VDD = 5 V)

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    • Figure 17. tDELAY versus CEN (VDD = 5 V)

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  • 4.7 Thermal protection

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• 5 Application information

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  • Table 8. Component values for typical application

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  • Figure 18. Typical application

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• 6 Output current capability and IC power dissipation

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  • Figure 19. IC power dissipation vs output current with one full bridge ON at a time

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  • Figure 20. IC power dissipation versus output current with two full bridges ON at the same time

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• 7 Thermal management

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• 8 Package mechanical data

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  • Table 9. VFQFPN32 5x5x1.0 pitch 0.50

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  • Figure 21. Package dimensions

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• 9 Order codes

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  • Table 10. Order code

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• 10 Revision history

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  • Table 11. Document revision history

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