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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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L6566ATR датащи(PDF) 43 Page - STMicroelectronics |
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L6566ATR датащи(HTML) 43 Page - STMicroelectronics |
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43 / 51 page  L6566A Application information 43/51 It is worth reminding that “Auto-restart” means that the device will work intermittently as long as the condition that is activating the function is not removed; “Latched” means that the device is stopped as long as the unit is connected to the input power source and the unit must be disconnected for some time from the source in order for the device (and the unit) to restart. Optionally, a restart can be forced by pulling the voltage of pin 16 (AC_OK) below 0.45V. Shutdown2 Shutdown by VCOMP low VCOMP < VCOMPOFF Latched 10 0.33 0 0 0 0 0 0 ADAPTIVE UVLO Shutdown by Vcc going below Vccoff (lowering of Vccoff threshold at light load) Vcc < 9.4V (VCOMP > VCOMPL) Auto restart 5V 0.18 mA 00 0 0 0 0 Vcc < 7.2V (VCOMP > VCOMPO) 1. Use One external diode from VFF (#15) to AC_OK (#16), cathode to AC_OK 2. Use one external diode from SS (#14) to VREF (#10), cathode to VREF 3. If Css and the Vcc capacitor are such that Vcc falls below UVLO before latch tripping (Figure 21 on page 34) 4. If Css and the Vcc capacitor are such that the latch is tripped before Vcc falls below UVLO (Figure 21 on page 34) 5. When TJ < 110 oC 6. Discharged to zero by Vcc going below UVLO Table 7. L6566A protections |
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