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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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L6732 датащи(PDF) 15 Page - STMicroelectronics |
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L6732 датащи(HTML) 15 Page - STMicroelectronics |
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15 / 37 page  L6732 Device description 15/37 The L6732 can sink or source current after the soft-start phase (see Figure 9.). If an over current is detected during the soft-start phase, the device provides a constant-current- protection. In this way, in case of short soft-start time and/or small inductor value and/or high output capacitors value and so, in case of high ripple current during the soft-start, the converter can start in any case, limiting the current (see section 4.6 monitoring and protections) but not entering in HICCUP mode. During normal operation, if any under-voltage is detected on one of the two supplies, the SS pin is internally shorted to GND and so the SS capacitor is rapidly discharged. Figure 8. Start-up with pre-bias Figure 9. Inductor current during and after soft-start VSS IL VOUT LGate VOUT IL VSS VCC |
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