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L6360 数据表(PDF) 39 Page - STMicroelectronics |
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L6360 数据表(HTML) 39 Page - STMicroelectronics |
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39 / 65 page ![]() L6360 Device configuration Doc ID 022817 Rev 2 39/65 6.3.2 Slow demagnetization Applies to C/Q channel. Figure 22. Slow demagnetization schematic block. Load connected to L- When a high-side driver turns off an inductance a reversed polarity voltage appears across the load. In slow demagnetization configuration the low-side switch Q2 is ON and the C/Q pin is pulled at a voltage slightly (depending on Q2 drop) below the ground (L-). The energy is dissipated in both the IC internal switch and the load resistance. In the case of load connected between the C/Q pin and VCC, at switch-off (of the low-side switch Q2), the switch Q1 is ON and the output is pushed to a voltage slightly higher than VCC. Figure 23. Slow demagnetization waveform. Load connected to GND |
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