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POWERSTEP01 bảng dữ liệu(PDF) 59 Page - STMicroelectronics |
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POWERSTEP01 bảng dữ liệu(HTML) 59 Page - STMicroelectronics |
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59 / 92 page ![]() DocID025022 Rev 5 59/92 powerSTEP01 Programming manual 92 Any attempt to write to the register when the motor is running causes the command to be ignored and CMD_ERROR to rise (Section 11.1.28 on page 71). 11.1.18 TON_MIN This register is specific for current mode driving (see Section 9 on page 43). This parameter is used by the current control system when current mode operation is selected. The TON_MIN register contains the minimum on-time value used by the current control system (see Section 9.2 on page 44). The available range for both parameters is from 0.5 µs to 64 µs. Any attempt to write to the register when the motor is running causes the command to be ignored and the CMD_ERROR to rise (see Section 11.1.28). 11.1.19 TOFF_MIN This register is specific for current mode driving (see Section 9). This parameter is used by the current control system when current mode operation is selected. The TOFF_MIN register contains the minimum off-time value used by the current control system (see Section 9.1 on page 43 for details). The available range for both parameters is from 0.5 µs to 64 µs. Table 20. Maximum fast decay times TOFF_FAST [3 … 0] FAST_STEP [3 … 0] Fast decay time 0 0 0 0 2 µs 0 0 0 1 4 µs 1 1 1 0 28 µs 1 1 1 1 32 µs Table 21. Minimum on-time TON MIN [6 … 0] Time 0 0 0 0 0 0 0 0.5 µs 0 0 0 0 0 0 1 1 µs 1 1 1 1 1 1 0 63.5 µs 1 1 1 1 1 1 1 64 µs |
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